International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS

taxa names:

Op

opacum Herbst 1786 [originally in Acridium], Fuessly’s Archiv Ins.: 190, No. 3, pl. 52, fig. 2 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1103

opalescens Myers 1942 [originally in Cynolebias], Stanford Ichthyological Bulletin, 2(4): 107 (Osteichthyes, Cyprinodontiformes). Opinion 1762

opalescens Berry 1911 [originally in Loligo], Proc. U.S. nat. Mus., 40(1838): 591, ruled under the plenary power to be given precedence over the specific name stearnsii Hemphill 1892, as published in the binomen Loligo stearnsii, by those who regard both as denoting the same taxon (Cephalopoda). Opinion 1122

opalus Martyn 1784 [originally in [Limax]], Univ. Conch., 1: fig. 24 (conserved under the plenary power) (valid name at the date of Opinion 479 of the type species of Cantharidus Montfort 1810) (Gastropoda). Opinion 479

opatroides Lansberge 1874 [originally in Streblopus] (Coleoptera). ICZN 2023: Opinion 2498

operculata Beauvois 1799 [originally in Siren], Trans. amer. phil. Soc., 4: 277-281, figs. 1-4 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 662

operculatus Pocock 1902 [originally in Phrynus] (Amblypygi). ICZN 2017: Opinion 2396

Ophiceras Griesbach 1880, Rec. geol. Surv. Ind., 13: 102, 109 (conserved under the plenary power) (gender: neuter) (type species, by designation by Diener 1897 (Pal. ind. (15), Himalayan Fossils, 2(1): 101): Ophiceras tibeticum Griesbach 1880, Rec. geol. Surv. Ind., 13: 109, pl. 3, fig. 4) (Cephalopoda). Opinion 194 

Ophiceras Suess 1865, Anz. Akad. Wiss., Wien, 2 (No. 17): 112 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Direction 1

Ophidion Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 259 (gender: neuter) (type species, by designation by Gill 1863 (Proc. Acad. nat. Sci. Philadelphia, 1863: 210): Ophidion barbatum Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 259) (Osteichthyes). Opinion 92, Direction 56

Ophidion Pomel 1853, Cat. méth. Vert. foss. Loire: 128 (a junior homonym of Ophidion Linnaeus 1758). Direction 56  

Ophidium Linnaeus 1766, Systema Naturae, Ed. 12, vol. 1, part 1, p. 431 (an unjustified emendation of Ophidion Linnaeus 1758). Direction 56  

ophiocomae Giard 1877 [originally in Rhopalura], Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences, Paris, 85: 813 (specific name of the type species of Rhopalura Giard 1877) (Orthonectida). Opinion 2096

Ophioderma Müller & Troschel 1840, Arch. Naturges., Jahrg. 6, 1: 329 (gender: neuter) (type species, by designation by Clark 1915 (Mem. Mus. comp. Zool., 25(4): 300): Asterias longicauda Retzius 1805, Diss. Sist. spec. cogn. Ast.: 29) (Ophiuroidea). Opinion 1152 

OPHIODERMATIDAE Ljungman 1867, Öfvers. k. Vetensk.Akad. Forh., for 1866: 303 (type genus: Ophioderma Müller & Troschel 1840) (Ophiuroidea). Opinion 1152

Ophiodontes Bertrand 1763, Dict. Univ. Foss. Propres Foss. Accid., 1: 192 (included in a work rejected for nomenclatural purposes). Opinion 592

Ophiolepis Müller & Troschel 1840, Arch. Naturges., Jahrg. 6, 1: 328 (gender: feminine) (type species, by designation under the plenary power: Ophiolepis superba Clark 1915, Spolia Zeylanica, 10: 89) (Ophiuroidea). Opinion 1187 

Ophiophagus Günther 1864, Rept. Brit. Ind.: 340 (conserved under the plenary power) (gender: masculine) (type species, by monotypy: Hamadryas elaps Günther 1858, Cat. Colubr. Snakes Brit. Mus.: 219, valid name: Naja hannah Cantor 1836) (Reptilia). Opinion 709 

Ophiura Lamarck 1801, Syst. Anim. sans Vert.: 350 (gender: feminine) (type species, by absolute tautonymy: Asterias ophiura Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 662) (Ophiuroidea). Opinion 1152

ophiura Linnaeus 1758 [originally in Asterias], Systema Naturae, Ed. 10, vol. 1, p. 662, as interpreted by the specimen illustrated by Linck 1733 (De Stellis marinis, pl. 2, no. 4) and designated as lectotype under the plenary power (specific name of the type species of Ophiura Lamarck 1801) (Ophiuroidea). Opinion 1152

OPHIURIDAE Müller & Troschel 1840 (as OPHIURIDEN), Arch. Naturges., Jahrgang 6, 1: 329 (type genus: Ophiura Lamarck 1801) (Ophiuroidea). Opinion 1152

Ophonus Dejean 1821, Catalogue de la collection de Coléoptères de M. le Baron Dejean, p. 13 (gender: masculine) (type species, by designation under the plenary power: Carabus sabulicola Panzer 1796) (Insecta, Coleoptera). Opinion 1598

opilio Linnaeus 1758 [originally in Phalangium], Systema Naturae, Ed. 10, vol. 1, p. 618 (specific name of the type species of Phalangium Linnaeus 1758) (Arachnida). Opinion 2082

Opisthocomus Illiger 1811, Prodr. Syst. Mamm. Avium: 239 (gender: masculine) (type species, by monotypy: Phasianus cristatus Gmelin [1789], in Linnaeus, Systema Naturae, Ed. 13, vol. 1, part 2, p. 741, valid name: Phasianus hoazin Müller [1776]) (Aves). Opinion 67 

Opisthocoronis Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 548 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069 

Opisthopus Rathbun 1893, Proc. U.S. nat. Mus., 16 (No. 933): 251 (gender: masculine) (type species, by monotypy: Opisthopus transversus Rathbun 1893, Proc. U.S. nat. Mus., 16 (No. 933): 252) (Crustacea, Decapoda). Opinion 85, Direction 37

Opius Wesmael 1835, Nouveaux Mémoires de l’Académie Royale des Sciences et Belles-Lettres de Bruxelles, 9: 115 (gender: masculine) (type species, by designation under the plenary power: Opius pallipes Wesmael 1835) (Insecta, Hymenoptera). Opinion 1497 

OPLOPHAIDAE Guiler 1952, Rec. Queen Victoria Mus. Tasmania, 3(3): 35 (type genus: Oplophorus Milne Edwards 1837) (an incorrect subsequent spelling for OPLOPHORIDAE Dana 1852). Opinion 470 

OPLOPHORINAE Dana 1852, Proc. Acad. nat. Sci. Philadelphia, 6: 18, 27 (type genus: Oplophorus Milne Edwards 1837) (Crustacea, Decapoda). Opinion 470

Oplophorus Milne Edwards 1837, in Roret’s Suites à Buffon, Hist. nat. Crust., 2: 423 (gender: masculine) (type species, by indication under Article 68(c): Oplophorus typus Milne Edwards 1837, in Roret’s Suites à Buffon, Hist. nat. Crust., 2: 424) (Crustacea, Decapoda). Opinion 470 

Opomyza Fallén 1820, Opomyzides Sveciae, p. 10 (gender: feminine) (type species, by subsequent designation by Westwood 1840, An introduction to the modern classification of insects, p. 152: Musca germinationis Linnaeus 1758) (Insecta, Diptera). Opinion 2088

opossum Linnaeus 1758 [originally in Didelphis], Systema Naturae, Ed. 10, vol. 1, p. 55 (specific name of the type species of Philander Brisson 1762) (Mammalia, Marsupialia). Opinion 1894 

Oppelia Waagen 1869, Geogn.-Pal. Beitr., 2: 250 (gender: feminine) (type species, by designation by Douvillé 1884 (Bull. Soc. géol. France, (3)13: 32): Ammonites subradiatus Sowerby 1823, Min. Conch., 5: 23, pl. 421, fig. 2) (Cephalopoda). Opinion 324 

OPPELIIDAE Bonarelli 1893, Bull. Soc. malac. ital., 18: 81 (type genus: Oppelia Waagen 1869) (Cephalopoda). Direction 14

Opthalmichnium Pfeiffer 1968 (Ichnotaxon). ICZN 2018: Opinion 2417

ophthalmoides Jessen 1950 [originally in Planolites] (Ichnotaxon). ICZN 2018: Opinion 2417