International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS


taxa names:

Er

Erastria Hübner 1808, Erste Zutr. Samml. exot. Schmett.: 5 (included in a work rejected for nomenclatural purposes). Opinion 789  

Erastria Ochsenheimer 1816, Schmett. Europa, 4: 92 (a junior homonym of Erastria Hübner [1813]). Opinion 789  

erato Linnaeus 1758 [originally in Papilio], Systema Naturae, Ed. 10, vol. 1, p. 467, as defined by the neotype (specimen ‘Berg, en Dal, Surinam, 1898-9. Michls./erato erato Linn./866./20.20. ex coll. Riffarth/Joicey Bequest, Brit. Mus. 1934-120’ in the collections of the Natural History Museum, London) designated under the plenary power (Insecta, Lepidoptera). Opinion 1386  

ERBOCYATHIDAE Vologdin & Zhuravleva 1956, Doklady Akademii Nauk S.S.S.R., 111: 879 (type genus: Erbocyathus Zhuravleva 1955) (Archaeocyatha). Opinion 2121

Erbocyathus Zhuravleva 1955, Trudy, Paleontologicheskiy Institut, Akademiya Nauk S.S.S.R., 56: 44 (a junior objective synonym of Pluralicyathus Okulitch 1950) (Archaeocyatha). Opinion 2121

Erbula Stål 1873, Enum. Hemipt., 3: 86 (gender: feminine) (type species, by designation under the plenary power: Stenocoris southwoodi Ahmad 1965, Bull. Brit. Mus. (nat. Hist.) Entomol., Suppl. 5: 24) (Insecta, Hemiptera). Opinion 853  

Erebia Dalman 1816, K. Vetensk.-Akad. Handl., Stockholm, 1816 (No. 1): 58 (gender: feminine) (type species, by original designation: Papilio ligea Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 473) (Insecta, Lepidoptera). Opinion 506  

EREBIINAE Tutt 1896, Brit. Butts.: 87, 402 (type genus: Erebia Dalman 1816) (Insecta, Lepidoptera). Opinion 506

erecta Benson 1842 [originally in Achatina], Annals and Magazine of Natural History, (1)9: 487, as defined by the neotype (specimen no. 1991104A in the Natural History Museum, London) designated under the plenary power (specific name of the type species of Tortaxis Pilsbry 1906) (Gastropoda). Opinion 1766

Eremias Wiegmann 1834, Herpetol. Mexic. (1): 9 (gender: masculine) (type species, by designation under the plenary power: Lacerta velox Pallas 1771, Reise Russland, 1: 457) (Reptilia). Opinion 1318

Eremiophilus Fitzinger 1843, Systema Reptilium: 32 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1364

Eremita Osbeck 1765, Reise nach Ostindien und China, p. 356 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Crustacea, Decapoda). Opinion 1575  

eremita Vejdovský 1880 [originally in Cypris], Jahresb. k.-böhm. Ges. Wiss., Prague, 1880: L (specific name of the type species of Typhlocypris Vejdovský 1882) (Crustacea, Ostracoda). Opinion 533  

eremita Nobili 1906 [originally in Dacryopilumnus], Bull. Mus. Hist. nat., Paris, 12: 264 (specific name of the type species of Dacryopilumnus Nobili 1906) (Crustacea, Decapoda). Direction 36

eremita Scopoli 1763 [originally in Scarabaeus], Entomologia carniolica exhibens Insecta Cornioliae indigena ... Trattner, Vindobonae, p. 7 (specific name of the type species of Osmoderma Le Peletier de Saint-Fargeau & Serville 1828) (Insecta, Coleoptera). Opinion 2186

Eremobates Banks 1900, American Naturalist, 34: 426 (gender: masculine) (type species, ruled under the plenary power to be by subsequent designation by Roewer 1934, Klassen und Ordnungen des Tierreichs, Band 5 (Arthropoda), Abt. 4 (Arachnoidea), p. 555: Galeodes pallipes Say 1823) (Arachnida). Opinion 2050  

Eremorhax Roewer 1934, Klassen und Ordnungen des Tierreichs, Band 5 (Arthropoda), Abt. 4 (Arachnoidea), p. 553 (gender: masculine) (type species, by monotypy: Datames magna Hancock 1888) (Arachnida). Opinion 2050 

Erethismus Gistel 1848, Naturgeschichte des Thierreichs für höhere Schulen, p. xi (a junior objective synonym of Trichia Hartmann 1840) (Gastropoda). Opinion 2079

Erethizon Cuvier 1823, Mém. Mus. Hist. nat., Paris, 9: 426, 432 (gender: masculine) (type species, by original designation: Hystrix dorsata Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 57) (Mammalia). Opinion 91, Direction 24 

Erethrizon Torne 1885, Proc. U.S. nat. Mus., 7: 600 (an incorrect subsequent spelling for Erethizon Cuvier 1823). Direction 24

Erethryzon [Torne] 1891, Ann. Rep. U.S. nat. Mus., 1890: 760 (an incorrect subsequent spelling for Erethizon Cuvier 1823). Direction 24

ereticauda Eschscholtz 1833 [originally in Triton], Zool. Atlas, 5: 14 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 377 

Eretison Doughty 1831, Cab. nat. Hist. Amer. Rural Sports, 1(11): 241 (also McMurtrie 1831, in Cuvier, Anim. Kingd., 1: 154) (an incorrect subsequent spelling for Erethizon Cuvier 1823). Direction 24

Eretizon Cuvier [1824], Dents Mamm. (Tabl.): 256 (an incorrect subsequent spelling for Erethizon Cuvier 1823). Direction 24

Eretmia Gosse 1886, in Hudson & Gosse, The Rotifera or Wheel Animalcules both British & Foreign, 2: 128 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 816

Eretmoptera Kellogg 1900, Biological Bulletin, 1: 82 (gender: feminine), type species Eretmoptera browni Kellogg 1900, by original designation and monotypy (Diptera) Opinion 2206

ERETMOPTERINAE Kellogg 1900, Biological Bulletin, 1: 81 (type genus Eretmoptera Kellogg 1900), ruled under the plenary power (together with other family-group names based on Eretmoptera) not to be given priority over ORTHOCLADIINAE Kieffer 1911 and other family group names based on Orthocladius van der Wulp 1874 whenever their type genera are placed in the same family-group taxon (Diptera) Opinion 2206  

Eretmosaurus Seeley 1874, Quarterly Journal of the Geological Society of London, 30: 445 (gender: masculine) (type species, by monotypy: Plesiosaurus rugosus Owen 1840) (Reptilia, Plesiosauria). Opinion 1831 

Ergasticus Studer 1883, Abh. K.-preuss. Akad. Wiss., Berlin, 1882(2): 7 (gender: masculine) (type species, by monotypy: Ergasticus clouei Studer 1883, Abh. K.-preuss. Akad. Wiss., Berlin, 1882(2): 7, 8) (Crustacea, Decapoda). Opinion 712 

erhardii Bedriaga 1882 [originally in Lacerta muralis fusca var.], Bull. Soc. imp. Nat. Moscou, 56(3): 99 (conserved under the plenary power) (Reptilia). Opinion 642  

ericetorum Turto 1807 [originally in Turdus], Brit. Fauna, 1: 35 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 405  

Erichthus Latreille 1817, in Cuvier, Règne Anim. [ed. 1], 3: 43 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 294  

Eriechinus Pomel 1883, Class. méth. Gen. Echin. viv. foss.: 114 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 372  

Erigone Audouin [1826], Description de l’Egypte. Histoire Naturelle, vol. 1, part 4, p. 115 (gender: feminine) (type species, by designation under the plenary power: Erigone longipalpis Sundevall 1830) (Arachnida, Araneae). Opinion 1421

Erimacrus Benedict 1892, Proc. U.S. nat. Mus., 15 (No. 900): 229 (gender: masculine) (type species, by monotypy: Platycorystes (Podacanthus) isenbeckii Brand 1848, Bull. Acad. imp. Sci. St. Pétersbourg, 7(12/13): 180) (Crustacea, Decapoda). Opinion 73 

Erimetopus Rathbun 1894, Proc. U.S. nat. Mus., 17 (No. 980): 26 (gender: masculine) (type species, by monotypy: Erimetopus spinosus Rathbun 1894, Proc. U.S. nat. Mus., 17 (No. 980): 26) (Crustacea, Decapoda). Opinion 73 

Erinaceus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 52 (gender: masculine) (type species, by monotypy: Erinaceus europaeus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 52) (Mammalia). Opinion 75 

erinaceus Fabricius 1787 [originally in Cancer], Mantissa Ins., 1: 325 (specific name of the type species of Arcania Leach 1817) (Crustacea, Decapoda). Direction 36

erinaceus Linnaeus 1758 [originally in Murex], Systema Naturae, Ed. 10, vol. 1, p. 743 (specific name of the type species of Ocenebra Gray 1847) (Gastropoda). Opinion 886

eriocheles Lamarck 1801 [originally in Maja], Syst. Anim. sans Vertèbr.: 154 (a junior objective synonym of maja Linnaeus 1758 [originally in Cancer]). Opinion 511

ERIOCOCCINI Cockerell 1899, Bull. Illinois nat. Hist. Survey, 5: 389 (type genus: Eriococcus Targioni-Tozzetti 1868), ruled under the plenary power to be given precedence over ACANTHOCOCCIDAE Signoret 1875 whenever Eriococcus Targioni-Tozzetti 1868 and Acanthococcus Signoret 1875 are placed in the same family-group taxon (Insecta, Hemiptera). Opinion 1203 

Eriococcus Targioni-Tozzetti 1868, Introduzione alla seconda memoria per gli studi sulle cocciniglie, e catalogo dei generi e delle specie della famiglia dei Coccidi (privately published): 726 (gender: masculine) (type species, by designation under the plenary power: Coccus buxi Fonscolombe 1834, Annls. Soc. entomol. France, 3: 218) (Insecta, Hemiptera). Opinion 1203

Eriophyes von Siebold 1851, Jahresbericht der schlesischen Gesellschaft für vaterländische Kultur, 28: 89 (gender: masculine) (type species, by designation under the plenary power: Phytoptus pyri Pagenstecher 1857) (Arachnida, Acarina). Opinion 1521

eriox Linnaeus 1758 [originally in Salmo] not to be given precedence over fario Linneaus 1758 [originally in Salmo] and trutta Linnaeus 1758 [originally in Salmo] whenever it is considered synonymous with either of the other two (Opinion 40)

Eriphia Chambers 1875, Canad. Entomol., 7: 55 (a junior homonym of Eriphia Latreille 1817). Opinion 712 

Eriphia Herrich-Schaeffer, 1850-1856, Aussereurop. Schmett., 1: 16 (a junior homonym of Eriphia Latreille 1817). Opinion 712

Eriphia Latreille 1817, Nouv. Dict. Hist. nat. (ed. 2), 10: 404 (gender: feminine) (type species, by designation by Milne Edwards 1837 (in Cuvier’s Règne Anim. (ed. 4, Disciples ed.), 18: pl. 14, fig. 1): Cancer spinifrons Herbst 1785, Versuch Naturgesch. Krabben Krebse, 1(6): 185, valid name: Cancer verrucosus Forsskål 1775) (Crustacea, Decapoda). Opinion 712

Eriphia Meigen 1826, Syst. Beschr. zweifl. Ins., 5: 206 (a junior homonym of Eriphia Latreille 1817). Opinion 712

Eriphis Latreille 1817, Nouv. Dict. Hist. nat. (ed. 2), 10: 404 (an incorrect original spelling for Eriphia Latreille 1817). Opinion 712

Eristalis Latreille 1804, in: Nouveau Dictionnaire d’histoire naturelle ..., Ed. 1, vol. 24, p. 194 (gender: feminine, as ruled under the plenary power) (type species, by subsequent designation by Curtis 1832, British entomology; being illustrations and descriptions of the genera of insects found in Great Britain and Ireland ..., vol. 9, pl. 432 (text): Musca tenax Linnaeus 1758) (Insecta, Diptera). Opinion 1747, Opinion 2153

erithacus Linnaeus 1758 [originally in Psittacus], Systema Naturae, Ed. 10, vol. 1, p. 99 (specific name of the type species of Psittacus Linnaeus 1758) (Aves). Direction 43

Ernarmonia Diakonoff 1952, Bull. zool. Nomencl., 6: 156 (an incorrect subsequent spelling for Enarmonia Hübner [1825]). Opinion 349 

Ernarmonia Hübner [1825], Verz. bekannt. Schmett. (24): 375 (an incorrect original spelling for Enarmonia Hübner [1825]). Opinion 349 

erosa Miers [1877] [originally in Actaeomorpha], J. linn. Soc. London (Zool.), 13: 184 (specific name of the type species of Actaeomorpha Miers [1877]) (Crustacea, Decapoda). Direction 36  

erosus Walker 1872 [originally in Rhyparochromus] (Heteroptera). ICZN 2019: Opinion 2433 

Erpetocypris Brady & Norman 1889, Sci. Trans. roy. Dublin Soc., (2)4: 64 (ruled under the plenary power to be an incorrect original spelling for Herpetocypris Brady & Norman, 1889). Opinion 533 

Erpyzon Hübner 1808, Erste Zutr. Samml. exot. Schmett.: 4, 5 (included in a work rejected for nomenclatural purposes). Opinion 789  

errabunda Swellengrebel 1925 [originally in Cellia], Ned. Tijdschr. Geneesk., 69: 1913 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 874  

errata Waters 1878 [originally in Lepralia], Proc. Manchester lit. & philos. Soc., 18: 11 (Bryozoa). Opinion 1194 

Ertemia Hood 1888, Science Gossip, 24: 28 (an incorrect subsequent spelling for Eretmia Gosse 1886). Opinion 816

Ertemias Hood 1888, Science Gossip, 24: 27 (an incorrect subsequent spelling for Eretmia Gosse 1886). Opinion 816

eruditus Schrank 1781 [originally in Acarus], Enum. Ins. Austr. indig.: 513 (specific name of the type species of Cheyletus Latreille 1796) (Arachnida). Direction 67

erxlebella Fabricius 1787 [originally in Alucita], Mantissa insectorum, vol. 2, p. 256, as defined by the neotype (the male specimen in the Zoological Museum, Copenhagen, labelled ‘WÜRTTEMBERG Roeslerstammia Zeller 1839) (Insecta, Lepidoptera). Opinion 1910 

Erycina Lamarck 1805, Ann. Mus. Hist. nat., Paris, 6(36): 413 (gender: feminine) (type species, by designation under the plenary power: Erycina pellucida Lamarck 1805, Ann. Mus. Hist. nat., Paris, 6(37): 53) (Bivalvia). Opinion 217  

ERYCINIDAE Swainson 1827, Philos. Mag. (n.s.), 1: 185 (type genus: Erycina Fabricius 1807) (invalid because the name of the type genus is a junior homonym). Opinion 1073

Erycinigenus [Renier] [1807], [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427

Erynnidae Hampson 1918 (Lepidoptera). ICZN 2020: Opinion 2464

Erynnidi Tutt 1906 (Lepidoptera). ICZN 2020: Opinion 2464

Erynninae Brues & Melander 1932 (Lepidoptera). ICZN 2020: Opinion 2464

Erynninae Swinhoe 1913 (Lepidoptera). ICZN 2020: Opinion 2464

Erynnis Schrank 1801 (Lepidoptera). ICZN 2020: Opinion 2464

eryonas Hewitson 1877 [originally in Cyclopides], Annals and Magazine of Natural History, (4)20: 325 (specific name of the type species of Dalla Mabille 1904) (Insecta, Lepidoptera). Opinion 1669

Eryoneicus Bate 1882, Ann. Mag. nat. Hist., (5)10: 456 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 702 

Eryonicus Faxon 1893, Bull. Mus. comp. Zool., 24: 197, 198 (an incorrect subsequent spelling for Eryoneicus Bate 1882). Opinion 702

Erythemis Hagen 1861 (Odonata). ICZN 2014: Opinion 2339

Erythizon Gray 1825, Ann. Phil., 26: 341 (an incorrect subsequent spelling for Erethizon Cuvier 1823). Direction 24  

erythopus Geoffroy 1803 [originally in Sciurus], Cat. Mammif. Mus. nat. Hist. nat., Paris: 178 (an incorrect original spelling for erythropus Geoffroy 1803 [originally in Sciurus]). Opinion 945  

Erythrobasis Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 546 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069  

erythrocephala Meigen 1826 [originally in Musca], Systematische Beschreibung der bekannten europäischen zweiflügeligen Insekten, vol. 5, p. 62 (a junior primary homonym of Musca erythrocephala De Geer 1776) (Insecta, Diptera). Opinion 1670  

erythrocephala Linnaeus 1758 [originally in Tenthredo], Systema Naturae, Ed. 10, vol. 1, p. 558 (specific name of the type species of Acantholyda Costa 1894) (Insecta, Hymenoptera). Opinion 290 

erythronota Rafinesque 1818 [originally in Salamandra], Science Journal, 1(1): 25 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 665  

Erythronotos Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 557 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069  

Erythropleurae Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 553 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069  

erythrops Brady 1880 [originally in Ectinosoma], A monograph of the free and semi-parasitic Copepoda of the British Islands, vol. 2, Ray Society, London, p. 12 (specific name of the type species of Pararenosetella Lang 1944) (Crustacea, Copepoda). Opinion 2248 

erythropterus (emendation under the plenary power of erytropterus) Linnaeus 1758 [originally in Staphylinus], Systema Naturae, Ed. 10, vol. 1, p. 422 (specific name of the type species of Staphylinus Linnaeus 1758) (Insecta, Coleoptera). Opinion 546

erythropus Geoffroy 1803 [originally in Sciurus], Cat. Mammif. Mus. nat. Hist. nat., Paris: 178 (Mammalia). Opinion 945

erythrozonias Gmelin [1790] [originally in Cimex], in Linnaeus, Systema Naturae, Ed. 13, vol. 1, part 4, p. 2181 (a junior objective synonym of rubrofasciatus de Geer 1773 [originally in Cimex]). Direction 63  

erytropterus Linnaeus 1758 [originally in Staphylinus], Systema Naturae, Ed. 10, vol. 1, p. 422 (rejected under the plenary power as an incorrect original spelling for erythropterus Linnaeus 1758 [originally in Staphylinus]). Opinion 546