International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS
International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS
taxa names:
Ma
Mabouia Cuvier 1829, Règne Anim. (ed. 2), 2: 62 (an incorrect subsequent spelling for Mabuya Fitzinger 1826). Direction 56
Mabouya Duméril & Bibron 1839, Erpét., 5: 663, 671 (an incorrect subsequent spelling for Mabuya Fitzinger 1826). Direction 56
mabouya Lacepède 1788 [originally in Lacertus], Hist. nat. Quad. ovip. Serpens, 1: Syn. méth. (specific name of the type species of Mabuya Fitzinger 1826) (Reptilia). Opinion 240
Mabuia Cuvier 1829, Règne Anim. (ed. 2), 2: 64 (an incorrect subsequent spelling for Mabuya Fitzinger 1826). Direction 56
Mabuya Fitzinger 1826, Neue Classif. Rept.: 23, 52, 53 (gender: feminine) (type species, by absolute tautonymy: Lacertus mabouya Lacepède 1788, Hist. nat. Quad. ovip. Serpens, 1: Syn. méth.) (Reptilia). Opinion 92, Opinion 240
Mabuya Rafinesque 1815, Analyse Nature: 76 (a nomen nudum). Direction 56
macandreae Bell 1846 [originally in Calocaris], Hist. Brit. stalk-eyed Crust. (5): 233 (specific name of the type species of Calocaris Bell 1846) (Crustacea, Decapoda). Opinion 712
maccoa Eyton 1838 [originally in Erismatura], Mon. Anatidae: 169 (Aves). Opinion 1078
macellaria Fabricius 1775 [originally in Musca], Systema Entomologiae, p. 776 (specific name of the type species of Cochliomyia Townsend 1915) (Insecta, Diptera). Opinion 1399
macer Quenstedt 1886 [originally in Ammonites humphriesianus], Die Ammoniten des Schwäbischen Jura, II, Der Braune Jura, p. 528, ruled under the plenary power to be an available name, not invalid by reason of being a junior homonym (specific name of the type species of Skirroceras Mascke 1907) (Ammonoidea). Opinion 2123
macfarlandi (emendation of mcfarlandi) Cockerell 1901 [originally in Chromodoris], Nature, 65: 79 (Gastropoda). Opinion 221
Macgillivraya Grote 1894, Canad. Entomol., 26: 54 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1049
macgillivrayi White 1852 [originally in Ommatocarcinus], in MacGillivray, Voy. ‘Rattlesnake’, 2: 393 (specific name of the type species of Ommatocarcinus White 1852) (Crustacea, Decapoda). Direction 36
Machaeraria Cooper 1955, J. Paleontol., 29(1): 55 (gender: feminine) (type species, by original designation: Rhynchonella formosa Hall 1857, Tenth ann. Rept. New York State Cab. nat. Hist.: 76) (Brachiopoda). Opinion 770
Machaerilaemus Harrison 1915, Parasitology, 7: 389 (gender: masculine) (type species, by original designation: Machaerilaemus latifrons Harrison 1915, Parasitology, 7: 390) (Insecta, Mallophaga). Opinion 343
machaon Linnaeus 1758 [originally in Papilio], Systema Naturae, Ed. 10, vol. 1, p. 462 (specific name of the type species of Papilio Linnaeus 1758) (Insecta, Lepidoptera). Opinion 278
mackloti Duméril & Bibron 1844 [originally in Liasis], Erpét. gén., 6: 440 (specific name of the type species of Liasis Gray 1842, as ruled under the plenary power) (Reptilia). Opinion 939, Opinion 1514
Maclurea Emmons 1842, Geology of New York, part 2, p. 312 (an unjustified emendation of Maclurites Lesueur 1818) (Gastropoda, Archaeogastropoda). Opinion 1470
Maclurita de Blainville 1823, Dictionnaire des Sciences naturelles, vol. 27, p. 519 (an unjustified emendation of Maclurites Lesueur 1818) (Gastropoda, Archaeogastropoda). Opinion 1470
Maclurite Lesueur 1818, Journal of the Academy of Natural Sciences of Philadelphia, 1(2): 312, ruled under the plenary power to be an incorrect original spelling of Maclurites (Gastropoda, Archaeogastropoda). Opinion 1470
Maclurites Lesueur 1818, Journal of the Academy of Natural Sciences of Philadelphia, 1(2): 312 (gender: masculine) (type species, by subsequent designation by de Koninck 1881, Bulletin du Musée Royal d’Histoire Naturelle de Belgique, 6: 107: Maclurites magna Lesueur 1818), ruled under the plenary power to be the correct original spelling of Maclurite (Gastropoda, Archaeogastropoda). Opinion 1470
MACLURITIDAE Carpenter 1861, Annual Reports of the Smithsonian Institution, 1861: 216 (correction of MACLUREADAE) (type genus: Maclurites Lesueur 1818) (Gastropoda, Archaeogastropoda). Opinion 1470
Macneillena Iredale 1930, Australian Zoologist, 6(2): 175 (a junior objective synonym of Trichia De Haan 1839) (Brachyura). Opinion 2079
Macrobrachium Bate 1868, Proc. zool. Soc. London, 1868: 363 (gender: neuter) (type species, by designation by Fowler 1912 (Ann. Rep. New Jersey State Mus., 1911: 558): Macrobrachium americanum Bate 1868, Proc. zool. Soc. London, 1868: 363) (Crustacea, Decapoda). Opinion 564
Macrocephalites Zittel 1884, Handb. Paleont., 1(2)(3): 470 (gender: masculine) (type species, by designation by Lemoine, 1910 (Ann. Paléontol., 5: 151): Ammonites macrocephalus Schlotheim 1813, in Leonhard, Taschenb. gesamte Mineral., 7: 70) (Cephalopoda). Opinion 1275
MACROCEPHALITIDAE Buckman 1922, Type Ammonites, 4: 24, 54 (type genus: Macrocephalites Zittel 1884) (Cephalopoda). Direction 14
Macrocephalus Frisch 1775, Natur-Syst. vierfüssig. Thiere: 3 (published in a work rejected for nomenclatural purposes). Opinion 466
Macrocephalus Palmer 1904, N. Amer. Fauna, 23: 391 (a junior objective synonym of Phacochoerus Cuvier 1826). Opinion 466
macrocephalus Schlotheim 1813 [originally in Ammonites], in Leonhard, Taschenb. gesamte Mineral., 7: 70, as interpreted by the neotype designated by Callomon 1971 (Palaeontol., 14: 120) (specific name of the type species of Macrocephalites Zittel 1884) (Cephalopoda). Opinion 1275
macrocephalus Goldfuss 1839 [originally in Harpes], Nova Acta Academiae Caesarea Leopoldino-Carolinae Germanicum Naturae Curiosorum, 19(1): 359 (specific name of the type species of Harpes Goldfuss 1839) (Trilobita). Opinion 1436
macrocera Schellenberg 1803 [originally in Mira], Gen. Mouch. dipt.: 68 (specific name of the type species of Mira Schellenberg 1803) (Insecta, Hymenoptera). Opinion 898
Macrochaeta Bretscher 1896, Revue Suisse de Zoologie, 3(4): 509 (a junior homonym of Macrochaeta Grube 1850 and a senior objective synonym of Macrochaetina Bretscher 1899) (Oligochaeta). Opinion 1835
Macrochaetina Bretscher 1899, Revue Suisse de Zoologie, 6(2): 392 (gender: feminine) (type species, by monotypy of the replaced nominal genus Macrochaeta Bretscher 1896: Macrochaeta intermedia Bretscher 1896), ruled under the plenary power not to be given priority over Vejdovskyella Michaelsen 1903 whenever the two names are considered to be synonyms (Oligochaeta). Opinion 1835
Macrochlamis Sacco 1897, Bollettino dei Musei di Zoologia ed Anatomia comparata della Reale Università di Torino, 12(298): 101 (ruled under the plenary power to be an incorrect original spelling of Macrochlamys) (Bivalvia) Opinion 2203
Macrochlamys Sacco 1897, (30 December). I molluschi dei terreni terziarii del Piemonte e della Liguria, Parte 24, p. 32 (a junior homonym of Macrochlamys Gray 1847) (Bivalvia) Opinion 2203
Macrochoeta Macquart 1851, Mém. Soc. Sci. Agric. Lille, 1850: 242 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 867
Macrocystella Callaway 1877, Quart. J. geol. Soc. London, 33: 670 (gender: feminine) (type species, by monotypy: Macrocystella mariae Callaway 1877, Quart. J. geol. Soc. London, 33: 670) (Cystoidea). Opinion 927
MACROCYSTELLIDAE Bather 1899, Rep. Br. Assoc. Advmt. Sci., 68: 920 (type genus: Macrocystella Callaway 1877) (Cystoidea). Opinion 927
macrodactylus Milne Edwards & Lucas 1843 [originally in Gelasimus], in d’Orbigny, Voy. Amér. Mérid., 6: 27 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 940
macrodon Lacépède 1802 [originally in Centropomus], specific name of the type species of Aspro Lacépède 1802 and of Cheilodipterus Lacépède 1802 (Opinion 23)
macrolepidotus [originally in Chaetodon] given precedence over acuminatus Linnaeus 1758 [Chaetodon], whenever the two are considered synonymous (Opinion 40)
Macronectes Richmond 1905, Proceedings of the Biological Society of Washington, 18: 76 (gender: masculine) (type species, by monotypy of the replaced nominal genus Ossifraga Hombron & Jacquinot 1844: Procellaria gigantea Gmelin [1789]) (Aves, Procellariiformes). Opinion 1751
Macronema Pictet 1836, Mém. Soc. Phys. Hist. nat. Genève, 7: 399 (gender: neuter) (type species, by monotypy: Macronema lineatum Pictet 1836, Mém. Soc. Phys. Hist. nat. Genève, 7: 399) (Insecta, Trichoptera). Opinion 623
Macronema Stephens 1829, Syst. Cat. brit. Ins.: 217 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 623
Macronemum Burmeister 1839, Handb. Entomol., 2: 915 (an unjustified emendation of Macronema Pictet 1836). Opinion 623
Macropetasma Stebbing 1914, Ann. S. Afr. Mus., 15: 22 (gender: neuter) (type species, by monotypy: Parapenaeus africanus Balss 1913, Denkschr. med. naturwiss. Ges. Jena, 17: 105) (Crustacea, Decapoda). Opinion 864
macrophanes Meyrick 1888 [originally in Scoparia], Trans. entomol. Soc. London, 1888: 231, as interpreted by its holotype (female), Hawaiian Islands, Blackburn 1881, in British Museum (Natural History) (Insecta, Lepidoptera). Opinion 977
macrophthalma Nicolet 1849 [originally in Diphya] (Arachnida). ICZN 2021: Opinion 2480
macrophthalmus Bleeker 1850 [originally in Otolithus], Verhandel. Batav. Genootsch., 23: 16 (specific name of the type species of Pennahia Fowler 1926) (Osteichthyes). Opinion 1237
Macrophya Dahlbom 1835, Conspectus Tenthredinidum, Siricidum et Oryssinorum Scandinaviae quas Hymenopterorum familias, pp. 4, 11 (gender: feminine) (type species, by designation under the plenary power: Tenthredo montana Scopoli 1763) (Insecta, Hymenoptera). Opinion 1958
Macropipus Prestandrea 1833, Effem. Sci. lett. Sicilia, 6: 5 (gender: masculine) (type species, by monotypy: Portunus macropipus Prestandrea 1833, Effem. Sci. lett. Sicilia, 6: 4, valid name: Portunus tuberculatus Roux 1828) (Crustacea, Decapoda). Opinion 394
Macropis Panzer 1809, Fauna Insectorum Germanicae initia ..., vol. 107, tab. 16 (gender: feminine) (type species, by monotypy: Megilla labiata Fabricius [1805]) (Insecta, Hymenoptera). Opinion 1383
Macropodia [Leach 1814], in Brewster’s Edinburgh. Ency., 7: 431 (gender: feminine) (type species, by monotypy: Cancer longirostris Fabricius 1775, Syst. Entomol.: 408) (Crustacea, Decapoda). Opinion 763
MACROPODIDAE Gray 1821, London Medical Repository, 15: 308 (type genus: Macropus Shaw & Nodder 1790) (Mammalia). Opinion 2058
MACROPODINAE Hoedeman 1948, Encyclopaedie voor den aquariumhouder, p. 2, spelling emended to MACROPODUSINAE following the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Macropodus is MACROPODUS- (Osteichthyes). Opinion 2058
Macropodus Lacepède 1801, Histoire naturelle des poissons, vol. 3, p. 416 (gender: masculine) (type species, by monotypy: Macropodus viridiauratus Lacepède 1801) (Osteichthyes). Opinion 2058
MACROPODUSINAE Hoedeman 1948, Encyclopaedie voor den aquariumhouder, p. 2 (type genus: Macropodus Lacepède 1801), spelling emended from MACROPODINAE by the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Macropodus is MACROPODUS- (Osteichthyes). Opinion 2058
MACROPSIDAE Evans 1938, Proc. roy. Soc. Tasmania, 1938: 43 (type genus: Macropsis Lewis 1834) (Insecta, Hemiptera). Opinion 603
Macropsis Lewis 1834, Trans. entomol. Soc. London, 1: 49-51, pl. 7, figs. 3, 4 (gender: feminine) (type species, by designation under the plenary power: Jassus [sic] prasina Boheman 1852, K. svensk. Vetensk.- Akad. Handl., 1851: 122) (Insecta, Hemiptera). Opinion 603
Macropsis Sars 1876, Arch. Math. Naturvidensk., 1: 35 (a junior homonym of Macropsis Lewis 1834). Opinion 603
macroptera Beneden & Coemans 1867 [originally in Omalia] (Archaeorthoptera). ICZN 2015: Opinion 2370
Macropterygius von Huene 1922, Monographien zur Geologie und Palaeontologie, 1: 98 (gender: masculine) (type species, by subsequent designation by von Huene 1923, Bulletin of the Geological Society of America, 34: 465: Ichthyosaurus trigonus Owen 1840) (Reptilia, Ichthyopterygia). Opinion 1734
Macropteryx Swainson [1831], Zool. Illustr., (2)2(11): pl. 47 (a junior objective synonym of Hemiprocne (emendation of Hemiprocnes) Nitzsch 1829). Opinion 457
Macropus Latreille [1802], in Sonnini’s Buffon, Hist. nat. gén. partic. Crust. Ins., 3: 27 (a junior homonym of Macropus Shaw 1790). Opinion 763
Macropus Shaw 1790, Nat. Miscell.: pl. 33 and text (gender: masculine) (type species, by monotypy: Macropus giganteus Shaw 1790, Nat. Miscell.: pl. 33 and text, as interpreted by the neotype designated by Calaby & Ride 1964 (Bull. zool. Nomencl., 21: 254)) (Mammalia). Opinion 760
Macroscelosaurus von Meyer [1852], Zur Fauna der Vorwelt (2): 42 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1186
Macrotermes Holmgren 1909, Kungliga Svenska Vetenskapsakademiens Handlingar, (2)44(3): 193 (gender: masculine) (type species, by monotypy: Termes lilljeborgi Sjöstedt 1896) (Insecta, Isoptera). Opinion 2038
MACROTERMITINAE Kemner 1934, Kungliga Svenska Vetenskapsakademiens Handlingar, (3)13(4): 69 (type genus: Macrotermes Holmgren 1909), ruled under the plenary power that this name and other family-group names based on Macrotermes are to be given precedence over ACANTHOTERMITINAE Sjöstedt 1926 and other family-group names based on Acanthotermes Sjöstedt 1900 whenever their type genera are placed in the same family-group taxon (Insecta, Isoptera). Opinion 2038
macrotis La Rocque 1948 [originally in Cornellites], Univ. Microfilm Publ., No. 1059: 12 (included in a work issued in microfilm and rejected for nomenclatural purposes). Opinion 318
macrotuberculata Angiolini 1995 [originally in Waagenoconcha (Gruntoconcha)], Rivista Italiana di Paleontologia e Stratigrafia, 101: 206 (specific name of the type species of Gruntoconcha Angiolini 1995) (Brachiopoda). Opinion 1928
macroura Lichtenstein [1832] [originally in Chincha], Darstell. Säugth.: text to pl. 46 (specific name of the type species of Leucomitra Howell 1901) (Mammalia). Opinion 384
macroura Linnaeus 1758 [originally in Columba], Systema Naturae, Ed. 10, vol. 1, p. 164, as interpreted by the lectotype designated under the plenary power, namely the specimen described and figured by Edwards 1743 (Nat. Hist. Birds, 1: 15, pl. 15) (type locality: ‘West Indies’) (Aves). Direction 18
macrurus Owen 1863 [originally in Archeopteryx (sic)], Proc. roy. Soc. London, 12: 272 (a junior objective synonym of lithographica von Meyer 1861 [originally in Archaeopteryx]). Opinion 607
Mactra Linnaeus 1767, Systema Naturae, Ed. 12, vol. 1, part 2, p. 1125 (gender: feminine) (type species, by designation by Gray 1847 (Proc. zool. Soc. London, 15: 185): Cardium stultorum Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 681) (Bivalvia). Opinion 94, Direction 72
Mactrigenus [Renier] [1807] [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427
macula [Renier] [1807] [originally in Acicula], [Tav. serv. Class. Conn. Anim.]: Tav. VI (included in a work rejected for nomenclatural purposes). Opinion 427
macularius [anon.] [1840] [originally in Bucco], Verz. Java Samml. Thier. Holzapfel: No. 68 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 273
maculata Shaw 1802 [originally in Lacerta], Gen. Zool., 3(1): 304 (valid name at the date of Opinion 649 of the type species of Ambystoma Tschudi 1838) (Amphibia). Opinion 649
maculata Retzius 1783 [originally in Phalaena dimidioalba] (Arthropoda). ICZN 2014: Opinion 2333
maculata Retzius 1783 [originally in Phalaena viridis] (Arthropoda). ICZN 2014: Opinion 2333
maculata Perry 1810 [originally in Pomacea], Arcana; or the Museum of Natural History, pl. 11 and text (specific name of the type species of Pomacea Perry 1810) (Gastropoda). Opinion 1913
maculata Retzius 1783 [originally in Tipula clavata] (Arthropoda). ICZN 2014: Opinion 2333
maculata Gray 1830 [originally in Viverra], Spicilegia Zoologica, p. 9. (a junior homonym of Viverra maculata Kerr 1792) (Mammalia). ICZN 2007: Opinion 2183 (Case 3204)
maculatus De Geer 1778 [originally in Acarus aquaticus] (Arthropoda). ICZN 2014: Opinion 2333
maculatus Kaleniczenko 1851 [originally in Krynickillus] (Gastropoda). ICZN 2016: Opinion 2375
maculatus Nunneley 1837 [originally in Limax] (Gastropoda). ICZN 2016: Opinion 2375
maculatus Picard 1840 [originally in Limax] (Gastropoda). ICZN 2016: Opinion 2375
maculatus (correction of maculata) Fabricius 1798 [originally in Naucoris], Suppl. Entomol. syst.: 325 (specific name of the type species of Naucoris Geoffroy 1762) (Insecta, Hemiptera). Opinion 681
maculatus Gravenhorst 1837 [originally in Callopistes], Nova Acta Academiae Caesarea Leopoldino-Carolinae Germaninicae Naturae Curiosorum, 18(2): 744 (specific name of the type species of Callopistes Gravenhorst 1837) (Reptilia). Opinion 2118
maculatus Linnaeus 1758 [originally in Cancer], Systema Naturae, Ed. 10, vol. 1, p. 626 (specific name of the type species of Carpilius Desmarest 1823) (Crustacea, Decapoda). Direction 36
maculatus Fries 1838 [originally in Clinus], K. svenska Vetensk.Akad. Handl., 1837: 51 (Osteichthyes). Opinion 1021
maculatus Newport 1845 [originally in Henicops], Trans. linn. Soc. London, 19: 372 (specific name of the type species of Henicops Newport 1844) (Chilopoda). Opinion 1228
maculatus Duméril 1853 [originally in Hylambates], Annls. Sci. nat., (Zool.), 19: 165 (specific name of the type species of Hylambates Duméril 1853) (Amphibia). Opinion 1364
maculatus De Geer 1778 [originally in Scorpio], Mémoires pour servir à l’histoire des insectes, Tom. 7, p. 346 (senior synonym of Buthus (Isometrus) filum Ehrenberg in Hemprich & Ehrenberg 1828, the specific name of the type species of Isometrus Ehrenberg in Hemprich & Ehrenberg 1828) (Scorpiones). Opinion 2132
maculatus Houttuyn [1787] [originally in Sparus], Anim. Mus. Houtt. Index: 42 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
maculicollis Serville 1831 [originally in Gryllacris], Ann. Sci. nat., Paris, 22: 139 (specific name of the type species of Gryllacris Serville 1831) (Insecta, Orthoptera). Direction 5
Maculinea van Eecke 1915, Zool. Meded., 1: 28 (gender: feminine) (type species, by designation by Graves 1928 (Entomol. Rec., 40: 102): Papilio alcon [Denis & Schiffermüller] 1775, Ankündung syst. Werks Schmett. Wien. Gegend: 182) (Insecta, Lepidoptera). Opinion 503. Precedence over Phengaris Doherty 1891 not granted. ICZN 2017: Opinion 2399 (Case 3508)
Maculipennia Buonomini & Mariani 1953, Riv. Malariol., 32: 178 (a junior objective synonym of Anopheles Meigen 1818). Opinion 547
maculipennis Ashmead [originally in Alloderma], specific name of the type species by original designation of Alloderma Ashmead (Opinion 43)
maculipennis Meigen 1818 [originally in Anopheles], Syst. Beschr. zweifl. Ins., 1: 11 (specific name of the type species of Anopheles Meigen 1818) (Insecta, Diptera). Opinion 547
maculipennis Gory 1841 [originally in Buprestis], Histoire naturelle et iconographie des insectes coléoptères. Monographie des buprestides, Supplement, p. 118, ruled under the plenary power to be treated as not invalid by reason of having been originally published as a junior primary homonym of Buprestis maculipennis Laporte & Gory 1837 (Insecta, Coleoptera). Opinion 2008
maculipennis Laporte & Gory 1837 [originally in Buprestis], Histoire naturelle et iconographie des insectes coléoptères, vol. 1, p. 111 (Insecta, Coleoptera). Opinion 2008
maculiventris, Werner [originally in Lacerta muralis var. fusca], 1891, Verh. zool.-bot. Ges. Wien, 41: 752 (conserved under the plenary power) (Reptilia). Opinion 642
maculosum Martyn 1784 [originally in Buccin[um]], Univ. Conch., 1: fig. 8 (conserved under the plenary power) (valid name at the date of Opinion 479 of the type species of Cominella Gray 1850) (Gastropoda). Opinion 479
maculosus Allman 1843 [originally in Geomalacus], Athenaeum, 1843: 851 (specific name of the type species of Geomalacus Allman 1843) (Gastropoda). Opinion 335
maculosus Gravenhorst 1802 [originally in Staphylinus], Coleoptera Microptera Brunsvicensia, p. 165 (Insecta, Coleoptera). Opinion 2039
madagascarensis Milne Edwards & Audouin 1839 [originally in Astacus], L’Institut (sect. 1), 7(280): 152 (valid name at the date of Opinion 519 of the type species of Astacoides Guérin-Méneville 1839) (Crustacea, Decapoda). Opinion 519
madagascariensis Audouin & Milne Edwards 1841 [originally in Astacus], Arch. Mus. Hist. nat., Paris, 2: 35 (an incorrect subsequent spelling for madagascarensis Milne Edwards & Audouin 1839 [originally in Astacus]). Opinion 519
madagascariensis Peters 1854 [originally in Chalarodon], Monat. König. Akad. Wiss. Berlin: 616 (specific name of the type species of Chalarodon Peters 1854) (Reptilia). Opinion 955
madagascariensis Bonnaterre 1790 [originally in Langaha], Ophiologie, in: Tableau Encyclopédique et Méthodique des Trois Règnes de la Nature, p. 71 (specific name of the type species of Langaha Bonnaterre 1790) (Reptilia). Opinion 1463
madagascariensis Bonaparte 1856 [originally in Stercorarius antarcticus], Conspectus generum avium, vol. 2, p. 207 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Aves, Charadriiformes). Opinion 1814
Madiza Fallén 1810, Specim. entomol. novam Diptera disp. Meth. exhibens.: 19 (gender: feminine) (type species, by designation under the plenary power: Madiza glabra Fallén 1820, Oscinides Sveciae: 9) (Insecta, Diptera). Opinion 1112
MADIZINAE Czerny 1909, in Czerny & Strobl, Verh. zool.-bot. Ges. Wien, 59: 278 (type genus: Madiza Fallén 1810) (Insecta, Diptera). Opinion 1112
Madrepora Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 793 (conserved under the plenary power) (gender: feminine) (type species, by designation by Verrill 1901 (Trans. Connecticut Acad. Arts Sci., 11: 111): Madrepora oculata Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 798) (Anthozoa). Opinion 674
maena Linnaeus 1758 [originally in Sparus], Systema Naturae, Ed. 10, vol. 1, p. 278 (Osteichthyes). Opinion 960
maenas Linnaeus 1758 [originally in Cancer], Systema Naturae, Ed. 10, vol. 1, p. 627 (specific name of the type species of Carcinus [Leach 1814]) (Crustacea, Decapoda). Opinion 330
Maenopon Harrison 1916, Parasitology, 9: 22 (an incorrect subsequent spelling for Menopon Nitzsch 1818). Opinion 628
Maenopon Packard 1873, [Rep. U.S. geol. Surv., 6: 731] (not made available in the work cited). Opinion 628
magalhaensis Michaelsen 1907 [originally in Paessleria], Ergebnisse der Hamburger Magalhaensischen Sammelreise, 8(5): 69 (specific name of the type species of Paessleria Michaelsen 1907) (Tunicata). Opinion 1865
Magdalinus Germar 1843, in Schoenherr, Gen. Spec. Curcul., 7(2): 135 (a junior objective synonym of Magdalis Germar 1817). Opinion 345
Magdalis Germar 1817, Mag. Entomol. (Germar), 2: 340 (gender: feminine) (type species, by designation under the plenary power: Curculio violaceus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 378) (Insecta, Coleoptera). Opinion 345
magellanica Houttuyn [1787] [originally in Venus], Anim. Mus. Houtt. Index: 130 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
magellanica Houttuyn [1787] [originally in Voluta], Anim. Mus. Houtt. Index: 149 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
magna Linnaeus 1758 [originally in Alauda], Systema Naturae, Ed. 10, vol. 1, p. 167 (specific name of the type species of Sturnella Vieillot 1816) (Aves). Direction 43
magna Claus 1874 [originally in Conchoecia], Schriften zool. Inhalts, 1: 6, pl. 1, fig. 6c; pl. 2, figs. 16, 18 (specific name of the type species of Conchoecia (emendation of Conchaecia) Dana 1849) (Crustacea, Ostracoda). Opinion 534
magna Hancock 1888 [originally in Datames], Proceedings of the American Philosophical Society, 25: 107 (specific name of the type species of Eremorhax Roewer 1934) (Arachnida). Opinion 2050
magna Lesueur 1818 [originally in Maclurites], Journal of the Academy of Natural Sciences of Philadelphia, 1(2): 312 (specific name of the type species of Maclurites Lesueur 1818) (Gastropoda, Archaeogastropoda). Opinion 1470
magnifica Quoy & Gaimard 1832 [originally in Doris], Voyage de l’Astrolabe, Zoologie, vol. 2, Mollusques, p. 270 (specific name of the type species of Chromodoris Alder & Hancock 1855) (Gastropoda). Opinion 1375
magnifica Hope 1833 [originally in Phaenomeris], Proc. zool. Soc. London, 1833: 62 (specific name of the type species of Phaenomeris Hope 1833) (Insecta, Coleoptera). Opinion 621
magnificus Cushman 1904 [originally in Otouphepus], Amer. Geol., 33: 155 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 535
magnificus Shaw in Shaw & Nodder 1790 [originally in Psittacus], The naturalist’s miscellany, vol. 2, p. 50 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Aves, Psittaciformes). Opinion 1833
magnificus Spencer 1913 [originally in Pycinaster], Philosophical Transactions of the Royal Society of London, (B)204: 125 (Asteroidea). Opinion 1579
magnilarva Della Valle 1881 [originally in Distaplia], Atti. Accad. Lincei, Mem., (3)10: 431, 446 (specific name of the type species of Distaplia Della Valle 1881) (Urochordata). Direction 73
magnirostris Stephens 1826 [originally in Alauda], in Shaw, General zoology (Aves), vol. 14, part 1, p. 26 (Aves). Opinion 1859
magnirostris Latham 1801 [originally in Charadrius], Index orn., Suppl.: lxvi (specific name of the type species of Burhinus Illiger 1811) (Aves). Direction 20
magnolia Wilson 1811 [originally in Sylvia], Amer. Ornith., 3: 63 (Aves). Opinion 412
Magnonaias Utterback 1915, American Midland Naturalist, vol. 4(3), p. 47 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Bivalvia). Opinion 1487
Maia Brisson 1760, Ornithologia, 3: 212 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 511
Maia Lamarck 1801, Syst. Anim. sans Vertèbr.: 428 (an incorrect original spelling for Maja Lamarck 1801). Opinion 511
MAÏADAE Samouelle 1819, Entomol. useful Compendium: 88 (type genus: Maja Lamarck 1801) (an incorrect original spelling for MAJIDAE Samouelle 1819). Opinion 511
maior Fabricius 1787 [originally in Papilio malvae], Mantissa insectorum, vol. 2, p. 91 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Lepidoptera). Opinion 1599
Maja Lamarck 1801, Syst. Anim. sans Vertèbr.: 154 (gender: feminine) (type species, by designation under the plenary power: Cancer squinado Herbst 1788, Versuch Naturgesch. Krabben Krebse, 1(7): 214) (Crustacea, Decapoda). Opinion 511
maja Linnaeus 1758 [originally in Cancer], Systema Naturae, Ed. 10, vol. 1, p. 629 (specific name of the type species of Lithodes Latreille 1806) (Crustacea, Decapoda). Opinion 511
MAJIDAE (correction of MAÏADAE) Samouelle 1819, Entomol. useful Compendium: 88 (type genus: Maja Lamarck 1801) (Crustacea, Decapoda). Opinion 511
major Herbst 1782 [originally in Cancer vocans], Versuch Naturgesch. Krabben Krebse, 1(1): 83 (specific name of the type species of Uca [Leach 1814]) (Crustacea, Decapoda). Opinion 712
major De Geer 1774 [originally in Elater fuscus] (Arthropoda). ICZN 2014: Opinion 2333
major Retzius 1783 [originally in Formica nigra] (Arthropoda). ICZN 2014: Opinion 2333
major Férussac 1807 [originally in Helicolimax], Essai Méth. conchyl.: 43 (Gastropoda). Opinion 336
major Shaw 1800 [originally in Macropus], Gen. Zool., 1: 505 (ruled under the plenary power not to be an objective synonym of Macropus giganteus Shaw 1790) (Mammalia). Opinion 760
major Elles & Wood 1913 [originally in Monograptus triangulatus, var.], Mon. Brit. Grapt. (Palaeontogr. Soc.) (9): 472, pl. xlvii, figs. 5a-d, text-figs. 328a, b, as interpreted by direction under the plenary power, by the lectotype designated by Bulman 1957 (Bull. zool. Nomencl., 13: 314) (Graptolithina). Opinion 571
major De Geer 1776 [originally in Musca domestica] (Arthropoda). ICZN 2014: Opinion 2333
major De Geer 1776 [originally in Musca vivipara] (Arthropoda). ICZN 2014: Opinion 2333
major Linnaeus 1758 [originally in Parus], Systema Naturae, Ed. 10, vol. 1, p. 189 (specific name of the type species of Parus Linnaeus 1758) (Aves). Direction 43
major Linnaeus 1758 [originally in Phalaena (Bombyx) pavonia], Systema Naturae, Ed. 10, vol. 1, p. 497, ruled under the plenary power not to be given priority over the specific name pyri [Denis & Schiffermüller], 1775, as published in the binomen Bombyx pyri, whenever the two names are considered synonyms (Insecta, Lepidoptera). Opinion 1170
major Retzius 1783 [originally in Phalaena diura] (Arthropoda). ICZN 2014: Opinion 2333
major Retzius 1783 [originally in Phalaena noctua] (Arthropoda). ICZN 2014: Opinion 2333
major Retzius 1783 [originally in Phalaena strobilorum pini] (Arthropoda). ICZN 2014: Opinion 2333
major De Geer 1774 [originally in Silpha nigra] (Arthropoda). ICZN 2014: Opinion 2333
major Staudinger 1879 [originally in Syrichthus serratulae], Horae Societatis Entomologicae Rossicae, 14: 292 (Insecta, Lepidoptera). Opinion 1599
major Retzius 1783 [originally in Tenthredo pectinata] (Arthropoda). ICZN 2014: Opinion 2333
major Retzius 1783 [originally in Vespa crabro] (Arthropoda). ICZN 2014: Opinion 2333
Majungasaurus Lavocat 1955, Bulletin du Muséum National d’Histoire Naturelle, Paris, (2)27(3): 259 (gender: masculine), type species by original designation Megalosaurus crenatissimus Depéret 1896 (Dinosauria, Theropoda). Opinion 2269
malabaricus Fabricius 1775 [originally in Astacus], Syst. Entomol.: 415 (Crustacea, Decapoda). Opinion 334
Malacostraca Bertrand 1763, Dict. Univ. Foss. Propres Foss. Accid., 2: 3 (included in a work rejected for nomenclatural purposes). Opinion 592
Malapterurus Lacepède 1803, Hist. nat. Poiss., 5: 90 (gender: masculine) (type species, by designation under the plenary power: Silurus electricus Gmelin [1789], in Linnaeus, Systema Naturae, Ed. 13, vol. 1, part 3, p. 1354) (Osteichthyes). Opinion 93
Malapterus Jarocki 1822, Zoologiia, 4: 87 (an incorrect subsequent spelling for Malapterurus Lacepède 1803). Direction 56
Malapturus Swainson 1838, Nat. Hist. Class. Fish. Amph. Rept., 1: 348, 353 (an incorrect subsequent spelling for Malapterurus Lacepède 1803). Direction 56
Malaraeus Jordan 1933, Novit. zool., 39: 76 (gender: masculine) (type species, by original designation: Ceratophyllus telchinum Rothschild 1905, Novit. zool., 12: 153, pl. 8, fig. 21) (Insecta, Siphonaptera). Opinion 388
malariae Feletti & Grassi 1889 (December) [originally in Haemamoeba], Sui Parasiti della Malaria (a paper also published in January 1890, Riforma medica, 6(11): 64) (conserved under the plenary power) (specific name of the type species of Plasmodium Marchiafava & Celli 1885) (Sporozoa). Opinion 283
malariae Feletti & Grassi 1889 (December) [originally in Laverania], Sui Parasiti della Malaria (a paper also published in January 1890, Riforma medica, 6(11): 64) (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy, in so far as it was published as a new name and does not represent a transfer of Oscillaria malariae Laveran 1881 to the genus Haemamoeba). Opinion 283
malariae Laveran 1881 (May) [originally in Oscillaria], Nature parasit. Accidents Impaludisme: 87 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 285
malariae Marchiafava & Celli 1885 [originally in Plasmodium], Fortschr. Med., 3(24): 791 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 283
malayanus Raffles 1821 [originally in Ursus], Trans. linn. Soc. London, 13(1): 254 (valid name at the date of Opinion 384 of the type species of Helarctos Horsfield 1825) (Mammalia). Opinion 384
maldivensis Borradaile 1915 [originally in Pontonia], Ann. Mag. nat. Hist., (8)15: 213 (specific name of the type species of Pontonides Borradaile 1917) (Crustacea, Decapoda). Opinion 470
maldivensis Borradaile 1910 [originally in Sicyonella], Trans. linn. Soc. London, Zool., (2)13: 259 (specific name of the type species of Sicyonella Borradaile 1910) (Crustacea, Decapoda). Opinion 864
Malleigenus [Renier] [1807] [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427
malleum Burmeister 1838 [originally in Eureum], Handb. Entomol., 2(2): 441 (Insecta, Mallophaga). Opinion 343
Malmgrenia McIntosh 1874, Annals and Magazine of Natural History, (4)13: 263 (gender: feminine), type species designated under the plenary power Malmgrenia andreapolis McIntosh 1874 (Annelida). Opinion 2233
malvae Linnaeus 1758 [originally in Papilio], Systema Naturae, Ed. 10, vol. 1, p. 485 (valid name at the date of Opinion 278 of the type species of Pyrgus Hübner [1819]) (Insecta, Lepidoptera). Opinion 278
Mamaia Stebbing 1904, Spolia zeylan., 2(5): 2 (a junior objective synonym of Maja Lamarck 1801). Opinion 511
mamillaris de Grossouvre 1893 [originally in Douvilleiceras], Mém. Carte géol. France, Rech. Craie sup. (2): 23, 26 (an incorrect subsequent spelling for mammillaris, Ammonites, d’Orbigny 1841). Opinion 422
mamillata Reeve 1855 [originally in Patella], Conchol. icon., 8: species 140 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1281
mammillaris d’Orbigny 1841 [originally in Ammonites], Pal. franç., Terr. crét., 1: pls. 72, 73 (an unjustified emendation of mammillatus Schlotheim 1813 [originally in Ammonites]). Opinion 422
mammillaris, Bertrand 1763 [originally in Cidaris], Dict. Univ. Foss. Propres Foss. Accid., 2: 102 (included in a work rejected for nomenclatural purposes). Opinion 592
mammillaris Bertrand 1763 [originally in Echinites], Dict. Univ. Foss. Propres Foss. Accid., 2: 102 (included in a work rejected for nomenclatural purposes). Opinion 592
mammillata Bertrand 1763 [originally in Cidaris], Dict. Univ. Foss. Propres Foss. Accid., 2: 102 (included in a work rejected for nomenclatural purposes). Opinion 592
mammillatus Schlotheim 1813 [originally in Ammonites], Tasch. Min., 7: 111, as interpreted by the neotype designated by Casey 1954 (Bull. zool. Nomencl., 9: 252, 253) (specific name of the type species of Douvilleiceras de Grossouvre 1893) (Cephalopoda). Opinion 422
mammulata d’Orbigny [January 1850] [originally in Monticulipora], Prodr. Paléontol., 1: 25 (specific name of the type species of Monticulipora d’Orbigny 1849 [October]) (Bryozoa). Opinion 443
Mammuthus Brookes 1828, A catalogue of the anatomical & zoological museum of Joshua Brookes, Esq., F.R..S., F.L.S. etc. Part 1, p. 73 (gender: masculine) (type species, by designation under the plenary power: Elephas primigenius Blumenbach 1799) (Mammalia, Proboscidea). Opinion 1661
Manati Steller 1774, Beschreibung von dem Lande Kamtschatka: 97 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1320
Manatus Brünnich 1771, Zool. Fund.: 38 (a junior objective synonym of Trichechus Linnaeus 1758). Direction 13
Manatus Storr 1780, Prodr. meth. Mamm.: 41, Tab. C (a junior homonym of Manatus Brünnich 1771). Direction 13
manatus Linnaeus 1758 [originally in Trichechus], Systema Naturae, Ed. 10, vol. 1, p. 34 (specific name of the type species of Trichechus Linnaeus 1758) (Mammalia). Direction 13
manca Linnaeus 1767 [originally in Buprestis], Systema Naturae, Ed. 12, vol. 1, part 2, p. 1067 (specific name of the type species of Trichocratomerus Richter 1949) (Insecta, Coleoptera). Opinion 2009
manca Bolivar 1898 [originally in Trigoniza], Annali del Museo Civico di Storia Naturale Giacomo Doria, 39: 96 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Insecta, Orthoptera). Opinion 1489
Mancinella Link 1807, Beschr. nat.-Samml. Univ. Rostock (3): 115 (gender: feminine) (type species, by absolute tautonymy, through its cited synonym, Murex mancinella Linnaeus 1758: Mancinella aculeata Link 1807, Beschr. nat.-Samml. Univ. Rostock (3): 115, valid name: Volema alouina [Röding]) (Gastropoda). Opinion 911
mancinella Linnaeus 1758 [originally in Murex], Systema Naturae, Ed. 10, vol. 1, p. 751 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 911
Mancipium Hübner [1806], Tentamen: [1] (included in a work rejected for nomenclatural purposes). Opinion 278
Mancipium Hübner [1807], Samml. exot. Schmett., 1: pl. [141] (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Direction 4
Mancipium Hübner 1808, Erste Zutr. Samml. exot. Schmett.: 4, 5 (included in a work rejected for nomenclatural purposes). Opinion 789
mandarina Moore 1872 [originally in Theophila], Proceedings of the Zoological Society of London, 1872: 576, ruled under the plenary power to be not invalid by reason of being pre-dated by a name based on a domestic form (Insecta, Lepidoptera). Opinion 2027
mandibulare Lucas 1846 [originally in Theridion], Explor. Sci. Algérie (Zool.), 2 (Hist. nat. Anim. art.) (1): 260, pl. 17, fig. 1 (specific name of the type species of Enoplognatha Pavesi 1880) (Arachnida). Opinion 517
Mandrillus Ritgen 1824, Nat. Entheil. Saügethiere: 33 (gender: masculine) (type species, by designation by Allen 1939 (Bull. Mus. comp. Zool., 83: 157): Simia sphinx Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 25) (Mammalia). Opinion 1199
Mangalura Miers 1878, Proc. zool. Soc. London, 1878: 303 (gender: feminine) (type species, by monotypy: Penaeus dobsoni Miers 1878, Proc. zool. Soc. London, 1878: 302) ruled under the plenary power not to be given priority over the generic name Metapenaeus Wood-Mason 1891 whenever the two names are considered synonyms (Crustacea, Decapoda). Opinion 864
mangiferae Stebbing 1914 [originally in Cryphalus], Indian Forest Insects of Economic Importance. Coleoptera, p. 542, ruled under the plenary power to be given precedence over the specific names of Cryphalus inops Eichhoff 1872 and Hypothenemus griseus Blackburn 1885 whenever it is considered to be a synonym of either (Insecta, Coleoptera). Opinion 1408
Mania Hübner 1821 (Lepidoptera). ICZN 2015: Opinion 2352
manicata Linnaeus 1758 [originally in Apis], Systema Naturae, Ed. 10, vol. 1, p. 577 (specific name of the type species of Anthidium Fabricius 1804) (Insecta, Hymenoptera). Opinion 1713
manifestator Linnaeus 1758 [originally in Ichneumon], Systema Naturae, Ed. 10, vol. 1, p. 563 (specific name of the type species of Ephialtes Gravenhorst 1829) (Insecta, Hymenoptera). Direction 4
Maniola Schrank 1801, Fauna boica, 1(2): 152, 170 (gender: feminine) (type species, by designation by Scudder 1875 (Proc. amer. Acad. Arts Sci., Boston, 10: 211) and through Article 67e (1961 Code): Papilio jurtina Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 475) (Insecta, Lepidoptera). Opinion 506
MANIOLIDI Reuter 1897, Acta Soc. Sci. fenn., 22: 356 (type genus: Maniola Schrank 1801) (invalid because based on a misidentified type genus). Opinion 506
MANIOLIDI Verity 1953, Farfalle diurne Ital., 5: 228, 237 (type genus: Maniola Schrank 1801) (published as a name for a taxon below subfamily rank) (Insecta, Lepidoptera). Opinion 506
manitobense Whiteaves 1890 [originally in Cyrtoceras], Proc. Trans. roy. Soc. Canada, 7(4): 80 (specific name of the type species of Westonoceras Foerste 1924) (Cephalopoda). Opinion 593
manitoulinensis Caley 1936 [originally in Climacograptus], Geological Survey of Canada, Memoir 202(2): 65 (Graptolithina). Opinion 1561
Mansonia Blanchard 1901, C.R. Soc. Biol., Paris, 53: 1046 (conserved under the plenary power) (gender: feminine) (type species, by designation by Neveu-Lemaire 1902 (Mém. Soc. zool. France, 15: 214): Culex titillans Walker 1848, List Dipt. Brit. Mus. (1): 5) (Insecta, Diptera). Opinion 550
mantelli Sowerby 1814 [originally in Ammonites], Min. Conch., 1: 119, pl. 55 (specific name of the type species of Mantelliceras Hyatt 1903) (Cephalopoda). Opinion 557
mantelli Morton 1833 [originally in Nummulites], Amer. J. Sci., 23(2): 291 (specific name of the type species of Lepidocyclina Gümbel [1870]) (Rhizopoda). Direction 77
Mantelliceras Hyatt 1903, Mon. U.S. geol. Surv., 44: 113 (gender: neuter) (type species, by original designation: Ammonites mantelli Sowerby 1814, Min. Conch., 1: 119, pl. 55) (Cephalopoda). Opinion 557
MANTELLICERATIDAE Hyatt 1903, Mon. U.S. geol. Surv., 44: 105 (type genus: Mantelliceras Hyatt 1903) (Cephalopoda). Opinion 557
mantellii Owen 1848 [originally in Notornis], Trans. zool. Soc. London, 3(5): 347, pl. 56, figs. 7-13 (specific name of the type species of Notornis Owen 1848) (Aves). Direction 43
Mantes Geoffroy 1762, Hist. abrég. Ins. Paris, 1: 399 (included in a work rejected for nomenclatural purposes). Opinion 299
Mantes Geoffroy 1762, Histoire abrégée des insectes qui se trouvent aux environs de Paris, vol. 1, p. 399 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Insecta, Orthoptera). Opinion 1754
Mantis Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 425 (gender: feminine) ruled under the plenary power to be an available genus-group name (type species, ruled under the plenary power to be by subsequent designation by Latreille 1810 (Considerations générales sur l’ordre des animaux composant les classes des crustacés, des arachnides et des insectes, pp. 247, 433): Gryllus religiosus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 426) (Insecta, Orthoptera). Opinion 149, Opinion 1754
Mantis Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 425 (not made available in the work cited; published as a term intermediate between generic and specific names and not possessing the status of a subgeneric name). Opinion 299
mantis Linnaeus 1758 [originally in Cancer], Systema Naturae, Ed. 10, vol. 1, p. 633 (specific name of the type species of Squilla Fabricius 1787) (Crustacea, Stomatopoda). Direction 1
Manucodia Boddaert 1783, Tabl. Pl. enlum. Hist. nat. Daubenton: 39 (gender: masculine) (type species, by monotypy and through Opinion 67 and Article 67e (1961 Code): Paradisea [sic] chalybata Forster 1781, Indische Zool.: 40) (Aves). Opinion 67, Direction 43, Direction 44
marchei Sauvage 1879 [originally in Micracanthus], Bulletin de la Société Philomathique de Paris, (7)3: 96 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Osteichthyes). Opinion 2043
marci Linnaeus 1758 [originally in Tipula] (Diptera). ICZN 2023: Opinion 2487
Maresa Giebel 1856, Fauna der Vorwelt [vol. 2]: Die Insekten und Spinnen der Vorwelt mit Steter Berücksichtigung der Lebenden Insekten und Spinnen. xviii, F.U. Brockhaus, Leipzig, p. 298 (gender: feminine), type species by monotypy Maresa plebeja Giebel 1856, with the endorsement that it is not to be given priority over the name Reticulitermes Holmgren 1913 whenever their type species are placed in the same genus-group taxon (Insecta, Isoptera). Opinion 2225
Maretia Gray 1855, Cat. rec. Echin. B.M. (1), Echin. Irreg.: 48 (gender: feminine) (type species, by monotypy: Spatangus planulatus Lamarck 1816, Hist. nat. Anim. sans Vertèbr., 3: 31) (Echinoidea). Opinion 608
MARETIINAE (correction of MARETINAE) Lambert 1905, in Doncieux, Ann. Univ. Lyon (17): 162 (type genus: Maretia Gray 1855) (Echinoidea). Opinion 608
MARETINAE Lambert 1905, in Doncieux, Ann. Univ. Lyon (17): 162 (type genus: Maretia Gray 1855) (an incorrect original spelling for MARETIINAE Lambert 1905). Opinion 608
margaritacea Lamarck 1804 [originally in Trigonia], Ann. Mus. Hist. nat., Paris, 4(23): 335 (specific name of the type species of Neotrigonia Cossmann 1912) (Bivalvia). Opinion 327
margaritaceus Koren & Danielssen 1877 [originally in Solenopus], Arch. Math. Naturv., 2: 128 (specific name of the type species of Simrothiella Pilsbry 1898) (Solenogastres). Opinion 1185
Margaritana Schumacher 1817, Essai nouv. Syst. Habitations Vers test.: 41, 123 (a junior objective synonym of Margaritifera (emendation of Margaritifera) Schumacher 1816). Opinion 495
MARGARITANINAE Ortmann 1910, Nautilus, 23: 114 (type genus: Margaritana Schumacher 1817) (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 495
margaritarius Wankel 1860 [originally in Heteromurus], Lotos, Jahrg. 10: 203 (specific name of the type species of Heteromurus Wankel 1860) (Insecta, Collembola). Opinion 1064
margaritatus Montfort 1808 [originally in Amaltheus], Conch. syst. Class. méth. Coquilles, 1: 91 (specific name of the type species of Amaltheus Montfort 1808) (Cephalopoda). Opinion 575
Margaritifera (emendation of Margartifera) Schumacher 1816, Overs. K. Dansk Vidensk. Selsk. Forhandl. Kjobenhavn, 7: 7 (gender: feminine) (type species, by monotypy: Mya margaritifera Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 671) (Bivalvia). Opinion 495
margaritifera Linnaeus 1758 [originally in Mya], Systema Naturae, Ed. 10, vol. 1, p. 671 (specific name of the type species of Margaritifera (emendation of Margartifera) Schumacher 1816) (Bivalvia). Opinion 495
MARGARITIFERIDAE Haas 1940, Field Mus. Publ. (Zool.), 24: 119 (conserved under the plenary power) (type genus: Margaritifera Schumacher 1816) for use by those who consider that Margaritifera Schumacher and Unio Philipsson 1788 belong to different family-group taxa (Bivalvia). Opinion 495
margaritiferus Schlegel 1837 [originally in Herpetodryas], Essai. phys. Serp., 1: 151; 2: 184 (Reptilia). Opinion 1246
Margartifera Schumacher 1816, Overs. K. Dansk. Vidensk. Selsk. Forhandl. Kjobenhavn, 7: 7 (an incorrect original spelling for Margaritifera Schumacher 1816). Opinion 495
margelanica Kraatz 1882 [originally in Platyscelis], Deutsche Entomologische Zeitschrift, 26(1): 84 (specific name of the type species of Planoplatyscelis Kaszab 1940) (Insecta, Coleoptera). Opinion 1728
marggravii (=marcgravi) Walbaum 1792 [originally in Salmo (Curimata)], Artedi Genera Piscium, Ichth. (ed. 2), 3: 80 (not made available in the work cited). Opinion 772
marginalis Linnaeus 1758 [originally in Dytiscus], Systema Naturae, Ed. 10, vol. 1, p. 411 (specific name of the type species of Dytiscus Linnaeus 1758) (Insecta, Coleoptera). Opinion 619
marginalis Bloch 1793 [originally in Epinephelus], Naturgesch. ausl. Fische, 7: 14 (specific name of the type species of Epinephelus Bloch 1793) (Osteichthyes). Direction 57
marginalis Fallén 1824 [originally in Musca], Monographia Muscidium Sueciae, vol. 7, p. 66, and all uses of the specific name of Musca marginalis prior to the publication of Musca marginalis Wiedemann 1830 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Diptera). Opinion 1507
marginalis Fourcroy 1785 [originally in Musca], Entomologia Parisiensis, 2(5): 497, and all uses of the specific name of Musca marginalis prior to the publication of Musca marginalis Wiedemann 1830 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Diptera). Opinion 1507
marginalis Wiedemann 1830 [originally in Musca], Aussereuropäische zweiflügelige Insekten, vol. 2, p. 395 (Insecta, Diptera). Opinion 1507
marginata Gould 1836 [originally in Aplonis], Proceedings of the Zoological Society of London, 1836: 73, specific name of the type species of Aplonis Gould 1836 (Aves). Opinion 2285
marginata d’Orbigny 1826 [originally in Bulimina], Annales des Sciences Naturelles, 7: 269 (specific name of the type species of Bulimina d’Orbigny 1826) (Foraminifera). Opinion 2018
marginata Linnaeus 1766 [originally in Columba], Systema Naturae, Ed. 12, vol. 1, part 1, p. 286 (a junior objective synonym of macroura Linnaeus 1758 [originally in Columba]). Direction 18
marginata Fabricius 1781 [originally in Leptura], Species Insectorum eorum differentias specificas, synonyma auctorum, loca natalia, metamorphosin adiectis observationibus, descriptionibus, 1: 247 (Insecta, Coleoptera). Opinion 1494
marginata O.F. Müller 1766 [originally in Leptura], in Allioni, Mélanges de Philosophie et de mathématique de la Société Royale de Turin, 3: 188, and all uses of the name prior to the publication of Leptura marginata Fabricius 1781 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Coleoptera). Opinion 1494
marginata Müller 1776 [originally in Notonecta], Zoologiae Danicae prodromus, seu animalium Daniae et Norvegiae indigenarum characteres, nomina, et synonyma imprimis popularium, p. 104 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Insecta, Heteroptera). Opinion 1794
marginata Michaud 1831 [originally in Paludina], Complément Hist. nat. Moll. terrestr. fluviat. France Draparnaud: 98 (Gastropoda). Opinion 336
marginata Fabricius 1793 [originally in Semblis], Entomol. Syst., 2: 73 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 1276
marginata Panzer 1799 [originally in Semblis], Deutschlands Insekten, Heft 71, Abth. 3, ruled under the plenary power to be given precedence over the specific name maxima Scopoli 1763, as published in the binomen Phryganea maxima, whenever the two names are considered synonyms (Insecta, Plecoptera). Opinion 1276
marginatum Cameron 1941 [originally in Omalium], Proceedings of the Royal Entomological Society of London, (B)10: 58, ruled under the plenary power to be not invalid by reason of being a junior primary homonym of O. marginatum Say 1832 and O. marginatum Kirby 1837 (Insecta, Coleoptera). Opinion 2053
marginatum Say 1832 [originally in Omalium], Descriptions of new species of North American insects, and observations on some already described, p. 50 (Insecta, Coleoptera). Opinion 2053
marginatus De Geer 1778 [originally in Acarus aquaticus] (Arthropoda). ICZN 2014: Opinion 2333
marginatus Linnaeus 1758 [originally in Carabus], Systema Naturae, Ed. 10, vol. 1, p. 416 (specific name of the type species of Agonum Bonelli 1810) (Insecta, Coleoptera). Opinion 1855
marginatus Retzius 1783 [originally in Papilio argus] (Arthropoda). ICZN 2014: Opinion 2333
marginatus Renier [1804] [originally in Cerebratulus], Prospetto Classe Vermi: XXI (specific name of the type species of Cerebratulus Renier [1804]) (conserved under the plenary power) (Nemertea). Opinion 477
marginatus Cameron 1944 [originally in Staphylinus], Proceedings of the Royal Entomological Society of London, (B)13: 11, ruled under the plenary power to be not invalid by reason of being a junior primary homonym of S. marginatus Müller 1764, S. marginatus Ström 1768, S. marginatus Fabricius 1775 and S. marginatus Geoffroy 1785 (Insecta, Coleoptera). Opinion 2053
marginatus Müller 1764 [originally in Staphylinus], Fauna Insectorum Fridrichsdalina, sive methodica descriptio insectorum agri Fridrichsdalensis ..., p. 23 (Insecta, Coleoptera). Opinion 2053
Marginella [Renier] [1807] [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427
Marginelligenus [Renier] [1807] [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427
Marginelligenus [Renier] [1807] [Tav. serv. Class. Conn. Anim.]: Tav. VIII (included in a work rejected for nomenclatural purposes). Opinion 427
mariae Callaway 1877 [originally in Macrocystella], Quart. J. geol. Soc. London, 33: 670 (specific name of the type species of Macrocystella Callaway 1877) (Cystoidea). Opinion 927
marina Bertrand 1763 [originally in Retes], Dict. Univ. Foss. Propres Foss. Accid., 2: 155 (included in a work rejected for nomenclatural purposes). Opinion 592
marinum Bertrand 1763 [originally in Aurantium], Dict. Univ. Foss. Propres Foss. Accid., 2: 100 (included in a work rejected for nomenclatural purposes). Opinion 592
marinum Bertrand 1763 [originally in Cor], Dict. Univ. Foss. Propres Foss. Accid., 2: 104 (included in a work rejected for nomenclatural purposes). Opinion 592
marinus Fabricius 1775 [originally in Astacus], Syst. Entomol.: 413 (a junior objective synonym of gammarus Linnaeus 1758 [originally in Cancer]). Direction 51
marinus Bertrand 1763 [originally in Carduus], Dict. Univ. Foss. Propres Foss. Accid., 2: 100 (included in a work rejected for nomenclatural purposes). Opinion 592
marinus Paykull 1798 [originally in Elophorus], Fauna Suecica, Insecta, vol. 1[8], p. 245 (specific name of the type species of Ochthebius Leach 1815) (Insecta, Coleoptera). Opinion 1631
marinus Walbaum 1792 [originally in Esox], Artedi Ichthyol., 3: 88 (Osteichthyes). Opinion 900
marinus Linnaeus 1758 [originally in Larus], Systema Naturae, Ed. 10, vol. 1, p. 136 (specific name of the type species of Larus Linnaeus 1758) (Aves). Opinion 1515
marinus Fabricius 1780 [originally in Oniscus], [Fauna groenl.: 252] (not made available in the work cited). Opinion 643
marinus Linnaeus 1758 [originally in Oniscus], Systema Naturae, Ed. 10, vol. 1, p. 637 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 643
marinus Linnaeus 1758 [originally in Petromyzon], Systema Naturae, Ed. 10, vol. 1, p. 230 (specific name of the type species of Petromyzon Linnaeus 1758) (Agnatha). Opinion 1171
marinus Mitchill 1815 [originally in Silurus], Transactions of the Literary and Philosophical Society of New York, 1: 433 (Osteichthyes, Siluriformes). Opinion 1547
marionis Bate 1888 [originally in Nauticaris], Rep. Voy. ‘Challenger’ (Zool.), 24: 603 (specific name of the type species of Nauticaris Bate 1888) (Crustacea, Decapoda). Opinion 470
marisrubri Schneider 1801 [originally in Esox belone], in Bloch, Syst. Ichth.: 391 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 900
maritimus Scopoli 1763 [originally in Cimex], Entomol. carn.: 129 (specific name of the type species of Beosus Amyot & Serville 1843) (Insecta, Hemiptera). Opinion 249
maritimus Linnaeus 1758 [originally in Ursus], Systema Naturae, Ed. 10, vol. 1, p. 47 (valid name at the date of Opinion 384 of the type species of Thalarctos Gray 1825) (Mammalia). Opinion 384
marmorata Houttuyn [1787] [originally in Amphisbaena], Anim. Mus. Houtt. Index: 30 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
marmoratus Goeze 1777 [originally in Curculio], Entomologische Beyträge zu des Ritter Linne zwölften Ausgabe des Natursystems, vol. 1, p. 413 (senior subjective synonym of Curculio lythri Fabricius 1787, the type species of Nanophyes Schönherr 1838) (Insecta, Coleoptera). Opinion 1526
marmoratus Houttuyn [1787] [originally in Curculio], Anim. Mus. Houtt. Index: 68 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
marmoratus Ayres 1854 [originally in Hemitripteras], The Pacific (San Francisco), 3(44): 174, ruled by the Commission to have priority over its subjective synonym Scorpaenichthys marmoratus Girard 1854, the type species of Scorpaenichthys Girard 1854 (Osteichthyes, Scorpaeniformes). Opinion 1583
marmoratus Olivier 1811 [originally in Palaemon], Ency. méth., 8 (Ins.): 663 (valid name at the date of Opinion 470 of the type species of Saron Thallwitz 1891) (Crustacea, Decapoda). Opinion 470
marmoratus Jacquinot 1846 [originally in Remipes], in Hombron & Jacquinot (Eds.), Voyage au pôle sud et dans l’Océanie sur les corvettes l’Astrolabe et la Zélée: exécuté ... pendant ... 1837-1840, sous le commandement de M.J. Dumont d’Urville, capitaine de vaisseau ... sous la direction supérieure de M. Jacquinot, ... Zoologie. Crustacés, part 19, pl. 8, figs. 22-26 (Anomura). Opinion 2063
marmoratus Poey 1880 [originally in Rivulus], Anales de la Sociedad Española de Historia Natural, 9(2): 248, as defined by the neotype (specimen no. 37429 in the United States National Museum, Washington, D.C.) designated under the plenary power, ruled under the plenary power to be given precedence over the specific name of Rivulus ocellatus Hensel 1868 whenever the two names are considered to be synonyms (Osteichthyes, Cyprinodontiformes). Opinion 1798
marmorea Olivier 1789 [originally in Cetonia] (Coleoptera). ICZN 2019: Opinion 2442
marmorea Laporte 1833 [originally in Discocephala], Magasin de Zoologie, 2: 57 (specific name of the type species of Discocephala Laporte 1833) (Insecta, Heteroptera). Opinion 1538
marmoreus Houttuyn [1787] [originally in Curculio], Anim. Mus. Houtt. Index: 69 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
marmoria Hutton 1901 [originally in Drosophila], Transactions and Proceedings of the New Zealand Institute, 33: 91 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Insecta, Diptera). Opinion 1712
marnockii Cope 1878 [originally in Syrrhophus], Am. Nat., 12: 253 (specific name of the type species of Syrrhophus Cope 1878) (Amphibia). Opinion 1024
marocana Bouvier 1912 [originally in Dugastella], C.R. Acad. Sci., Paris, 155: 993 (specific name of the type species of Dugastella Bouvier 1912) (Crustacea, Decapoda). Opinion 470
Marssonopora Lang 1914, Geological Magazine, n.s., decade 6, 1: 438 (gender: feminine) (type species, by designation under the plenary power: Membranipora densispina Levinsen 1925) (Bryozoa, Cheilostomata). Opinion 1608
Marstonia Baker 1926, Trans. Wisconsin Acad. Sci. Arts, 22: 195 (gender: feminine) (type species, by original designation: Amnicola lustrica Pilsbry 1890, Nautilus, 4(5): 53) (Gastropoda). Opinion 1108
marsupialis Linnaeus 1758 [originally in Didelphis], Systema Naturae, Ed. 10, vol. 1, p. 54 (specific name of the type species of Didelphis Linnaeus 1758) (Mammalia). Direction 22
martensii Haase 1885 [originally in Cermatobius], Zool. Anz., 8: 695 (specific name of the type species of Cermatobius Haase 1885) (Chilopoda). Opinion 1228
Marthamea Klapálek 1907, Rospr. Ceske Akad., (2)16(16): 19 (gender: feminine) (type species, by designation by Klapálek 1923 (Colls. zool. Selys Longchamps: 97): Perla vitripennis Burmeister 1839, Handb. Entomol., 2(2): ii, 850) (Insecta, Plecoptera). Opinion 1276
martini Fleming 1828 [originally in Spirifer], Hist. brit. Anim.: 376 (a junior objective synonym of lineata Sowerby 1822 [originally inTerebratula? ]). Opinion 420
Martinia McCoy 1844, Syn. Char. Carb. Limest. Foss. Ireland: 128, 139 (gender: feminine) (type species, by designation under the plenary power: Spirifer glaber Sowerby 1820, Min. Conch., 3: 123, pl. 269, as interpreted by the lectotype designated and figured by Muir-Wood 1951 (Ann. Mag. nat. Hist., (12)4: 111, pl. 3, figs. 2a-c)) (Brachiopoda). Opinion 421
martinicensis Tschudi 1838 [originally in Hylodes], Classif. der Batrachier [preprint of Mem. Soc. Sci. nat. Neuchâtel, 2]: 37, 77 (specific name of the type species of Eleutherodactylus Duméril & Bibron 1841) (Amphibia). Opinion 1104
MARTINIINAE Waagen 1883, Pal. ind. (13), Salt Range Fossils, 1: 524 (type genus: Martinia McCoy 1844) (Brachiopoda). Direction 62
martis Gmelin [1791] [originally in Filaria], in Linnaeus, Systema Naturae, Ed. 13, vol. 1, part 6, p. 3040 (specific name of the type species of Filaria Müller 1787 with the type illustration being that cited by Rudolphi (1809), not that mistakenly cited by Gmelin) (Nematoda). Opinion 56, Direction 77
mascarenus Finsch 1868 [originally in Psittacus] (Aves). ICZN 2020: Opinion 2455
mascarin. Linnaeus 1771 [originally in Psittacus] (Aves). ICZN 2020: Opinion 2455
mascarinus Linnaeus 1771 [originally in Psittacus] (Aves). ICZN 2020: Opinion 2455
mascarone Herbst 1785 [originally in Cancer], Versuch Naturgesch. Krabben Krebse, 1(6): 191 (specific name of the type species of Ethusa Roux 1830) (Crustacea, Decapoda). Opinion 712
Massaihelix Germain 1913, Bulletin du Muséum National d’Histoire Naturelle, Paris, 19: 352 (gender: feminine) (type species, by monotypy: Helix butumbiana von Martens 1895), ruled under the plenary power not to be given priority over the name Prositala Germain 1915 whenever the two are considered to be synonyms (Gastropoda). Opinion 2081
Mastigodryas Amaral 1934, Mems. Inst. Butantan, 8: 157 (gender: feminine) (type species, by monotypy: Mastigodryas danieli Amaral 1934, Mems. Inst. Butantan, 8: 158) (Reptilia). Opinion 1035
mastigophorus Claus 1863 [originally in Calanus], Die freilebenden Copepoden mit besonderer Berücksichtigung der Fauna Deutschlands, der Nordsee und des Mittelmeeres, p. 173 (specific name of the type species of Clausocalanus Giesbrecht 1888) (Copepoda). Opinion 1503
maugetii Latreille 1802 [originally in Elmis], Histoire naturelle des fourmis, p. 400 (specific name of the type species of Elmis Latreille 1802) (Insecta, Coleoptera). Opinion 1812
maulica Molina 1782 [originally in Chrysomela], Saggio sulla storia naturale del Chili, p. 209 (senior synonym of Buprestis bella Guérin Méneville 1830) (Insecta, Coleoptera). Opinion 2008
Maurea Oliver 1926 (December [20th]), Proc. malac. Soc. London, 17(2/3): 107, 108 (gender: feminine) (type species, by original designation and through Opinion 479 and Article 67e (1961 Code): Trochus tigris Gmelin [1791], in Linnaeus, Systema Naturae, Ed. 13, vol. 1, part 6, p. 3585, as interpreted by reference to the holotype, namely the specimen figured by Martyn 1784 (Univ. Conch., 2: fig. 75)) (Gastropoda). Opinion 479
mauri Bertrand 1763 [originally in Cidaris], Dict. Univ. Foss. Propres Foss. Accid., 2: 102 (included in a work rejected for nomenclatural purposes). Opinion 592
Mauriella Oliver 1926, Proc. malac. Soc. London, 17: 107, 109 (gender: feminine) (type species, by original designation: [Trochus] punctulatus Martyn 1784, Univ. Conch., 1: fig. 36) (Gastropoda). Opinion 479
mauritiana Quoy & Gaimard 1833 [originally in Holothuria], in d’Urville, Voy. ‘Astrolabe’, Zool., 4: 138 (Holothuroidea). Opinion 914
maurus Linnaeus 1758 [originally in Scorpio], Systema Naturae, Ed. 10, vol. 1, p. 624 (specific name of the type species of Scorpio Linnaeus 1758) (Arachnida). Direction 60
maurus Curtis 1834 [originally in Thya], London Edinburgh phil. Mag., (3)4: 216 (specific name of the type species of Beraea Stephens 1833) (Insecta, Trichoptera). Opinion 589
maxillosa Ranzani 1817 [originally in Phyllodoce], Opuscoli Scientifici, Bologna, 1(2): 109 (specific name of the type species of Polyodontes de Blainville 1828) (Polychaeta). Opinion 1692
maxillosus Linnaeus 1758 [originally in Staphylinus], Systema Naturae, Ed. 10, vol. 1, p. 421 (specific name of the type species of Creophilus Samouelle 1819) (Insecta, Coleoptera). Opinion 546
maxima Moore 1842 [originally in Formica], A descriptive vocabulary of the language in common use among the aborigines of Western Australia with copious meanings embodying much interesting information regarding the habits, manners and customs of the Natives, and the natural history of the country. William S. Orr, London: 54 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1053
maxima Hertwig 1888 [originally in Halcampella], Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-76, Zoology, 26: 29 (specific name of the type species of Halcampella Andres 1883) (Anthozoa). Opinion 2073
maxima Scopoli 1763 [originally in Phryganea], Entomol. Carniol.: 269, ruled under the plenary power not to be given priority over the specific name marginata Panzer 1799, as published in the binomen Semblis marginata, whenever the two names are considered synonyms (Insecta, Plecoptera). Opinion 1276
maxima Laurenti 1768 [originally in Rana], Specimen medicum, exhibens synopsin Reptilium emendatum cum experimentis circa venena et antidota reptilium Austriacorum, Vienna: 32 (a junior objective synonym of Rana boans Linnaeus 1758). Opinion 1029
maxima Forsskål 1775 [originally in Salpa], Descr. Anim.: 112 (specific name of the type species of Salpa Forsskål 1775) (Urochordata). Opinion 888
maximus Geoffroy Saint-Hilaire 1850 [originally in Aepyornis], Ann. Sci. nat., Paris (Zool.), (3)14: 209 (specific name of the type species of Aepyornis Geoffroy Saint-Hilaire 1850) (Aves). Direction 43
maximus Linnaeus 1758 [originally in Limax], Systema Naturae, Ed. 10, vol. 1, p. 652 (specific name of the type species of Limax Linnaeus 1758) (Gastropoda). Opinion 336
maya Sowerby 1840 [originally in Ammonites], Trans. geol. Soc. London, (2)5: expl. to pl. 61, fig. 8 (specific name of the type species of Mayates Spath 1924) (Cephalopoda). Opinion 471
Mayaites Spath 1924, Pal. ind. (n.s.), 9: 9 (gender: masculine) (type species, by original designation: Ammonites maya Sowerby 1840, Trans. geol. Soc. London, (2)5: expl. to pl. 61, fig. 8) (Cephalopoda). Opinion 471
MAYAITIDAE Spath 1928, Pal. ind. (n.s.), 9: 165 (type genus: Mayaites Spath 1924) ruled under the plenary power to be given precedence over the family-group name GRAYICERATIDAE Spath 1925 by those who consider that Mayaites Spath and Grayiceras Spath 1923 belong to the same family-group taxon (Cephalopoda). Opinion 471
Mayorella Schaeffer 1926, Taxonomy of the Amebas: 56 (gender: feminine) (type species, by original designation: Amoeba bigemma Schaeffer 1918, Trans. amer. micros. Soc., 94: 80-88) ruled under the plenary power to be given precedence over the generic name Dactylamoeba Korotneff 1880 whenever the two names are considered synonyms (Rhizopoda). Opinion 1344