International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS
Ch
Chaemapelia Allen 1908, Bull. amer. Mus. nat. Hist., 24: 46 (an unjustified emendation of Chaemepelia Swainson 1827). Direction 35
Chaemepelia Swainson 1827, Zool. J., 3(11): 361 (type species confirmed as Columba passerina Linneaus 1758, Opinion 31) a junior objective synonym of Columbigallina Boie 1826. Direction 35
Chaemepella Bangs 1907, Auk, 24: 292 (an unjustified emendation of Chaemepelia Swainson 1827). Direction 35
Chaemepilia Lawrence 1862, Ann. Lyceum nat. Hist. New York, 7: 301 (an unjustified emendation of Chaemepelia Swainson 1827). Direction 35
Chaeraps Huxley [1879], Proc. zool. Soc. London, 1878: 752, 755, 764, 767-771, 775, 776, 786 (an incorrect subsequent spelling for Cherax Erichson 1846). Opinion 519
chaerophylli Retzius 1783 [originally in Phalaena bicristata] (Arthropoda). ICZN 2014: Opinion 2333
Chaetoderma Lovén 1844, Öfvers. K. svensk. Vetensk.-Akad. Förhandl., 1: 116 (gender: neuter) (type species, by monotypy: Chaetoderma nitidulum Lovén 1844, Öfvers. K. svensk. Vetensk.-Akad. Förhandl., 1: 116) (Caudofoveata). Opinion 764
Chaetoderma Moser 1907, Ann. Soc. entomol. Belg., 51: 319 (a junior homonym of Chaetoderma Lovén 1844). Opinion 764
Chaetoderma Swainson 1839, The Natural History of Fishes, Amphibians & Reptiles, or monocardian animals, 2: 194, 327, 441 (an incorrect original spelling for Chaetodermis Swainson 1839). Opinion 764
CHAETODERMATIDAE (correction of CHAETODERMATA) von Jhering 1876, Jb. dtsch. malakol. Ges., Jahrg. 3: 137 (type genus: Chaetoderma Lovén 1844) (Caudofoveata). Opinion 764
Chaetodermis Swainson 1839, The Natural History of Fishes, Amphibians & Reptiles, or monocardian animals, 2: 194, 327, 441 (gender: masculine) (type species, by designation by Bleeker 1866 (Ned. Tijdschr. Dierk., 3: 12, 26): Balistes penicilligerus Cuvier 1817, Le Règne Animal, 4: 185, pl. 9, fig. 3) (Osteichthyes). Opinion 764
Chaetolonchaea Czerny 1934, in Lindner, Flieg. palaearkt. Reg., 43: 26 (gender: feminine) (type species, by original designation: Lonchaea dasyops Meigen 1826, Syst. Beschr. zweifl. Ins., 5: 308) (Insecta, Diptera). Opinion 652
Chaetopsylla Kohaut 1903, Allat. Közlem., Budapest, 2: 37 (gender: feminine) (type species, by designation by da Cunha 1914 (Contrib. Estudo Sifonapteros Brasil: 105): Chaetopsylla rothschildi Kohaut 1903, Allat. Közlem., Budapest, 2: 40, pl. 4, figs. 7-9; pl. 5, figs. 3, 5, 6) (Insecta, Siphonaptera). Opinion 388
Chaetopterus Cuvier 1830, Le règne animal distribué d’après son organisation, pour servir de base à l’histoire naturelle des animaux et d’introduction à l’anatomie comparée, Nouvelle édition, vol. 3, Déterville & Crochard, Paris, p. 208, (gender: masculine) type species by monotypy Chaetopterus pergamentaceus Cuvier 1830 (Annelida). Opinion 2296
Chaetopteryx Stephens 1829, Nomencl. Brit. Ins.: 28 (gender: feminine) (type species, by monotypy: Phryganea villosa Fabricius 1798, Suppl. Entomol. syst.: 200) (Insecta, Trichoptera). Opinion 596
Chaetosoma Chevrolat 1843, Dictionnaire universel d’histoire naturelle . . . Tome troisième. [Livraisons 30–36]. MM. Renard, Martinet et Cie, Paris, p. 367 (gender: neuter), type species by monotypy Chaetosoma pilosum Chevrolat 1843, suppressed under the plenary power for both the Principle of Priority and the Principle of Homonymy (Insecta, Coleoptera). Opinion 2287
Chaetosoma Westwood 1851, The Transactions of the Entomological Society of London, (New Series), 1: 171 (gender: neuter), type species by monotypy Chaetosoma scaritides Westwood 1851 (Insecta, Coleoptera). Opinion 2287
CHAETOSOMATIDAE Claus 1872, Grundzüge der Zoologie. Zum Gebrauche an Universitäten und Höheren Lehranstalten sowie zum Selbststudium. Zweite vermehrte Auflage. N.G. Elwert, Marburg & Leipzig, p. 312, (originally published as CHAETOSOMIDAE), type genus Chaetosoma Claparède 1863, suppressed under the plenary power for both the Principle of Priority and the Principle of Homonymy (Nematoda). Opinion 2287
CHAETOSOMATIDAE Crowson 1952, The Entomologists Monthly Magazine, 88: 66, type genus Chaetosoma Westwood 1851 (Insecta, Coleoptera). Opinion 2287
Chagrinichnites Feldmann, Osgood, Szmuc & Meinke 1978, Journal of Paleontology, 52: 288 (gender: masculine) (Trace fossil, arthropod). Opinion 1520
Chaitophorus Koch 1854, Die Pflanzenläuse, Aphiden, getreu nach dem Leben abgebildet und beschrieben: 1 (gender: masculine) (type species, by designation under the plenary power: Chaitophorus leucomelas Koch 1854, Die Pflanzenläuse, Aphiden, getreu nach dem Leben abgebildet und beschrieben: 4, 5, figs. 5, 6) (Insecta, Hemiptera). Opinion 1161
Chalarodon Peters 1854, Monat. König. Akad. Wiss. Berlin: 616 (gender: masculine) (type species, by monotypy: Chalarodon madagascariensis Peters 1854, Monat. König. Akad. Wiss. Berlin: 616) (Reptilia). Opinion 955
Chalinolobus Peters 1866, Monatsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin, 1866: 680 (gender: masculine) (type species, by original designation: Vespertilio tuberculatus J.R. Forster 1844) (Mammalia). Opinion 1994
challengeri Clark 1907 [originally in Antedon], Smithsonian Miscellaneous Collections, 50(3): 353 (specific name of the type species of Isometra Clark 1908) (Crinoidea). Opinion 2132
chalybata Forster 1781 [originally in Paradisea (sic)], Indische Zool.: 40 (specific name of the type species of Manucodia Boddaert 1783) (Aves). Direction 43
chalybea Boddaert 1783 [originally in Manucodia], Tabl. Pl. enlum. Hist. nat. Daubenton: 39 (a junior objective synonym of chalybata Forster 1781 [originally in Paradisea (sic)]). Direction 44
chalybeata Stiles 1916 [originally in Paradisea (sic)], Smithson. Publ., 2409: 181 (an incorrect subsequent spelling for chalybata Forster 1781 [originally in Paradisea (sic)]). Direction 44
Chama da Costa 1778, Hist. nat. Test. Brit.: 230 (a junior homonym of Chama Linnaeus 1758). Opinion 484
Chama Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 691 (gender: feminine) (type species, by designation by Children 1823 (Quart. J. Sci. Lit. Arts, 15: 28): Chama lazarus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 691) (Bivalvia). Opinion 484
Chama Mörch 1853, Cat. Conchyl. Yoldi, 2: 33 (a junior homonym of Chama Linnaeus 1758). Opinion 484
Chama Oken 1815, Lehrb. Naturgesch., 3(Zool.)(1): 253 (published in a work rejected for nomenclatural purposes). Opinion 484
CHAMACEA Menke 1830, Synopsis meth. Moll. (ed. alt.): 109 (type genus: Chama Linnaeus 1758) (an incorrect subsequent spelling for CHAMIDAE Blainville 1825). Opinion 484
CHAMACIDAE d’Orbigny 1839, in Webb & Berthelot, Hist. nat. Iles Canaries, 2(2): 104 (type genus: Chama Linnaeus 1758) (an incorrect subsequent spelling for CHAMIDAE Blainville 1825). Opinion 484
CHAMADAE Fleming 1828, Hist. brit. Anim.: 408, 409 (type genus: Chama Linnaeus 1758) (an incorrect original spelling for CHAMIDAE Fleming 1828, a nominal family-group taxon established without knowledge of the prior establishment of the same nominal taxon by Blainville in 1825). Opinion 484
Chamaedrilus Friend 1913 (Annelida). ICZN 2018: Opinion 2423
chamaeleon Linnaeus 1758 [originally in Musca], Systema Naturae, Ed. 10, vol. 1, p. 589 (specific name of the type species of Stratiomys Geoffroy 1762) (Insecta, Diptera). Opinion 442
Chamaemyia Meigen 1803, Illiger’s Mag. f. Insektenk., 2: 278 (gender: feminine) (type species, by designation under the plenary power: Chamaemyia elegans Panzer (1806-1809), Fauna Ins. germ., (105): 12) (Insecta, Diptera). Opinion 847
CHAMAEMYIIDAE Hendel 1910, Wien. Entomol. Ztg., 29: 313 (type genus: Chamaemyia Meigen 1803) (Insecta, Diptera). Opinion 847
Chamaepelia Cuvier 1829, Règne Anim. (ed. 2), 1: 584 (an unjustified emendation of Chaemepelia Swainson 1827). Direction 35
Chamaepilea Bryant 1866, Proc. Boston. Soc. nat. Hist., 10: 257 (an unjustified emendation of Chaemepelia Swainson 1827). Direction 35
Chamaepsila Hendel 1917, Deutsche Entomologische Zeitschrift (Berlin), 1917: 37 (gender: feminine) (type species, by original designation: Musca rosae Fabricius 1794) (Insecta, Diptera). Opinion 1938
CHAMIDAE (correction by Broderip 1839 (Penny Cyclopaedia, 14: 319) of CAMACEA) Blainville 1825, Man. Malac.: 541 (type genus: Chama Linnaeus 1758) (Bivalvia). Opinion 484
Chamigenus [Renier] [1807], [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427
Chanda Hamilton-Buchanan 1822, An account of the fishes of the Ganges: 103, 370 (gender: feminine) (type species, by designation under the plenary power: Chanda nama Hamilton-Buchanan 1822, An account of the fishes of the Ganges: 109) (Osteichthyes). Opinion 1121
chaos [originally in Chaos], specific name of the type species of Chaos Linnaeus 1758. Opinion 16
Chapmania Silvestri & Prever 1904, in Silvestri, Riv. Ital. Sci. nat., Boll. Nat., 24(12): 117-119, text-figs. 1-3 (a junior homonym of Chapmania Monticelli 1893). Opinion 765
Chapmanina Silvestri 1931, Boll. Soc. geol. Ital., 50: 63-73, pl. 1 (gender: feminine) (type species, by designation under the plenary power: Chapmania gassinensis Silvestri 1905, Boll. Soc. geol. Ital., 23 1904 (1905): 481, 482, 485 footnote 2) (Rhizopoda). Opinion 765
chaquensis Cei 1950 [originally in Leptodactylus], Acta Zoologica Lilloana, 9: 417 (Amphibia). Opinion 2044
characias [Bosc d’Antic] 1784 [originally in Orthezia] (Hemiptera). ICZN 2016: Opinion 2387
CHARAXEIDI Wheeler 1903, Butts. Switz.: 99, 149 (type genus: Charaxes Ochsenheimer 1816) (an incorrect subsequent spelling at the tribe-name level for CHARAXIDAE Doherty 1886). Opinion 577
Charaxes Ochsenheimer 1816, Schmett. Europa, 4: 18 (gender: masculine) (type species, by monotypy: Papilio jasius Linnaeus 1767, Systema Naturae, Ed. 12, vol. 1, part 2, p. 749, errata) (Insecta, Lepidoptera). Opinion 577
CHARAXIDAE Doherty 1886, J. asiat. Soc. Bengal, (2)55(2): 109, 124 (type genus: Charaxes Ochsenheimer 1816) (Insecta, Lepidoptera). Opinion 577
CHARAXIDINAE Aurivillius [1911], in Seitz, Grossschmett. Erde, 13(107): 122 (type genus: Charaxes Ochsenheimer 1816) (an incorrect subsequent spelling at subfamily-name level for CHARAXIDAE Doherty 1886). Opinion 577
CHARILAIDAE Dirsh 1953 (Insecta, Orthoptera): proposed precedence over PAMPHAGODIDAE I. Bolívar 1916 not granted. ICZN 2012: Opinion 2309 (Case 3429)
Charina Gray 1849 (Reptilia). ICZN 2020: Opinion 2454
Charinaidae Gray 1849 (Reptilia). ICZN 2020: Opinion 2454
Charinidae Gray 1849 (Reptilia). ICZN 2020: Opinion 2454
Charinidae Quintero 1986 (Amblypygi). Opinion 2454
Charinus Simon in Raffray, Bolivar & Simon 1892 (Amblypygi). Op 2454
charithonia Linnaeus 1767 [originally in Papilio], Systema Naturae, Ed. 12, vol. 1, part 2, p. 757 (specific name of the type species of Heliconius Kluk 1802) (Insecta, Lepidoptera). Opinion 382
charlottae Smith 1885 [originally in Tellina], Rep. Voy. ‘Challenger’ (Zool.), 13: 100 (specific name of the type species of Maoritellina Finlay 1927) (Bivalvia). Opinion 987
Charonia Gistl [1847], Handb. Naturgesch.: 559, 586 (gender: feminine) (type species, by original designation: Murex tritonis Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 754) (Gastropoda). Opinion 886
Charybdis Cocco 1832, Effem. Sci. Lett. Sicil., 2: 204 (a nomen nudum). Opinion 712
Charybdis de Haan [1833], in Siebold, Fauna japon. (Crust.), (1): 3, 10 (gender: feminine) (type species, by designation by Glaessner 1929 (Fossil Cat. Anim., 41: 113): Cancer feriatus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 627) (Crustacea, Decapoda). Opinion 712
Chasmagnathus de Haan [1833], in Siebold, Fauna japon. (Crust.): 5; id., [1835], ibid.: 27 (gender: masculine) (type species, by monotypy: Ocypode (Chasmagnathus) convexa de Haan [1835], in Siebold, Fauna japon. (Crust.): 28, 56) (Crustacea, Decapoda). Opinion 85, Direction 86
Chasmocarcinus Rathbun 1898, Bull. Lab. nat. Hist. State Univ. Iowa, 4: 284 (gender: masculine) (type species, by original designation: Chasmocarcinus typicus Rathbun 1898, Bull. Lab. nat. Hist. State Univ. Iowa, 4: 285) (Crustacea, Decapoda). Opinion 85, Direction 37
Chauna Illiger 1811, Prodr. Syst. Mamm. Avium: 253 (gender: feminine) (type species, by monotypy: Parra chavaria Linnaeus 1766, Systema Naturae, Ed. 12, vol. 1, part 1, p. 260) (Aves). Opinion 67
Chauna Loew 1847, Entomol. Ztg. Stettin, 8: 370 (a junior homonym of Chauna Illiger 1811). Direction 44
chavaria Linnaeus 1766 [originally in Parra], Systema Naturae, Ed. 12, vol. 1, part 1, p. 260 (specific name of the type species of Chauna Illiger 1811) (Aves). Direction 43
Cheilodipterus Lacépède 1802 (gender: masculine), type species Centropomus macrodon Lacépède 1802 by monotypy (senior objective synonym of Aspro Lacépède 1802 under Opinion 23)
Cheilosia Meigen 1822, Systematische Beschreibung der bekannten europäischen zweiflügeligen Insekten, vol. 3, p. 296 (gender: feminine) (type species, under the plenary power by subsequent designation by Coquillett 1910, Proceedings of the United States National Museum, 37: 521: Syrphus flavipes Panzer 1798) (Insecta, Diptera). Opinion 1744
Cheilosia Panzer [1809], Faunae insectorum germanicae initia oder Deutschlands Insecten, Heft 108, p. 14, and all uses of the name prior to the publication of Cheilosia Meigen 1822 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Diptera). Opinion 1744
cheiragonus Tilesius 1815 [originally in Cancer], Mém. Acad. imp. Sci. St. Pétersbourg, 5: 347 (valid name at the date of Direction 36 of the type species of Telmessus White 1846) (Crustacea, Decapoda). Direction 36
Cheiridium Menge 1855, Neueste Schriften der Naturforschenden Gesellschaft, 5(2): 36 (gender: neuter) (type species, by subsequent designation by Simon 1879, Les arachnides de France, vol. 7 (Les ordres des chernetes, scorpiones et opiliones), p. 43: Chelifer museorum Leach 1817) (Arachnida, Pseudoscorpionida). Opinion 1697
Cheirurus Beyrich 1845, Ueber einige böhmischen Trilobiten, p. 5 (gender: masculine) (type species, by subsequent designation by Barton 1913, Bulletin of the Museum of Comparative Zoology, Harvard, 54(21): 547: Cheirurus insignis Beyrich 1845) (Trilobita). Opinion 1435
chelata O.F. Müller 1764 [originally in Aranea], Fauna Insectorum Fridrichsdalina, p. 94 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Arachnida). Opinion 2049
chelata Linnaeus 1758 [originally in Sertularia], Systema Naturae, Ed. 10, vol. 1, p. 816 (specific name of the type species of Scruparia Oken 1815) (Bryozoa). Opinion 902
chelicornis Lichtenstein 1796 [originally in Solpuga], Catalogus musei zoologici ditissimi Hamburgi, d. III. Februar 1796 auctionis lege distrahendi. Sectio Tertia. Continens Insecta, p. 218, ruled under the plenary power to be available despite having been published in a suppressed work (specific name of the type species of Solpuga Lichtenstein 1796) (Solifugae). Opinion 1820
Chelidura Berthold 1827, in Latreille, Nat. Fam. Thierr.: 409 (gender: feminine) (type species, by designation by Serville 1831 (Ann. Sci. nat., Paris, 22: 36): Forficula aptera Charpentier 1825, Hor. Entomol.: 69) (Insecta, Dermaptera). Opinion 149
Chelifer Geoffroy 1762, Histoire abrégée des insectes qui se trouvent aux environs de Paris, vol. 2, p. 617 (gender: masculine) (type species, by subsequent designation by Latreille 1810, Considerations générales sur ... les classes des crustacés, des arachnides et des insectes, p. 424: ‘Scorpio cancroides Fabricius 1775’ (= Acarus cancroides Linnaeus 1758), ruled under the plenary power to be available (Arachnida, Pseudoscorpionida). Opinion 1542, Opinion 1754
CHELIFERIDAE Westwood 1838, The Entomologist’s text book; an introduction to the natural history, structure, physiology and classification of Insects, including the Crustacea and Arachnida, p. 145 (type genus: Chelifer Geoffroy 1762) (Arachnida, Pseudoscorpionida). Opinion 1542; ICZN 2019: Official Correction 132
Cheloniceras Hyatt 1903, U.S. geol. Surv. Mon., 44: 101 footnote, 129 (gender: neuter) (type species, by designation under the plenary power: Ammonites cornuelianus d’Orbigny 1841, Paléont. franç., Terr. crét., 1: 364, pl. 112, figs. 1, 2) (Cephalopoda). Opinion 428
CHELONICERATIDAE Spath 1923, Mon. Ammonoidea of the Gault (Palaeontogr. Soc.), 1: 35 (type genus: Cheloniceras Hyatt 1903) (Cephalopoda). Opinion 428
Chelonus Panzer 1806, Kritische Revision der Insektenfaune Deutschlands, nach dem System bearbeitet, vol. 2, p. 99 (gender: masculine) (type species, by subsequent designation by Curtis 1837, British entomology, vol. 14, p. 672: Ichneumon oculator Fabricius 1775) (Insecta, Hymenoptera). Opinion 1546
Chelydra Schweigger 1812, Koenigsberger Arch. Naturwiss., 1: 292 (gender: feminine) (type species, by monotypy: Testudo serpentina Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 199) (Reptilia). Opinion 92
Chemelys Rafinesque 1832, Atl. J. and Friend of Knowl., 1: 64 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1309
Cheraps Erichson 1846, Arch. Naturgesch., 12(1): 101 (an incorrect original spelling for Cherax Erichson 1846, under the ruling given under the plenary power). Opinion 519
Cherax Erichson 1846, Arch. Naturgesch., 12(1): 88, 89 (gender: masculine) (type species, by monotypy: Astacus (Cheraps) preissii Erichson 1846, Arch. Naturgesch., 12(1): 101, valid name: Astacus bicarinatus Gray 1845) (Crustacea, Decapoda). Opinion 519
Chermes Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 453 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 731
chermesina Renier [1804] [originally in Amphinome], Prospetto Classe Vermi: xviii (not made available in the work cited which was rejected for nomenclatural purposes). Opinion 316
CHERMIDES Fallén 1814, Spec. nov. Hemipt. Disp. Meth.: 22 (type genus: Chermes Linnaeus 1758) (invalid because the name of the type genus has been suppressed under the plenary power). Opinion 731
Chetoderma Kowalevsky & Marion 1887, Ann. Mus. Hist. nat. Marseille, 3, Mém. 1: 8 (an incorrect subsequent spelling for Chaetoderma Lovén 1844). Opinion 764
chevalieri Bouvier 1912 [originally in Caridinopsis], Bull. Mus. Hist. nat., Paris, 18: 300 (specific name of the type species of Caridinopsis Bouvier 1912) (Crustacea, Decapoda). Opinion 559
Cheylatus Mégnin 1878, J. Anat. Physiol., 14: 421 (an incorrect subsequent spelling for Cheyletus Latreille 1796). Direction 66
Cheyletes Sundevall 1833, Consp. Arach., (2): 37 (an incorrect subsequent spelling for Cheyletus Latreille 1796). Direction 66
Cheyletus Latreille 1796, Précis Caract. Ins.: 179 (gender: masculine) (type species, by monotypy: Acarus eruditus Schrank 1781, Enum. Ins. Austr. indig.: 513) (Arachnida). Opinion 104
Cheylutus Oudemans 1906, Mém. Soc. zool. France, 19: 212 (an incorrect subsequent spelling for Cheyletus Latreille 1796). Direction 66
chiametla Shaw 1802 [originally in Coluber], General Zoology (Amphibia), 3(2): 440 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 1246
Chicoreus Montfort 1810, Conch. syst. Class. méth. Coquilles, 2: 611 (gender: masculine) (type species, by original designation: Murex ramosus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 747) (Gastropoda). Opinion 911
chilensis Guichenot 1849 [originally in Conger], in Gay, Hist. fis. polit. Chile, Zoologia, 2: 339 (valid name at the date of Opinion 1200 of the type species of Genypterus Philippi 1857) (Osteichthyes). Opinion 1200
chilensis Milne Edwards & Lucas [1844] [originally in Corystoides], in d’Orbigny, Voy. Amér. mérid., 6 (Crust.): 31 (specific name of the type species of Corystoides Milne Edwards & Lucas [1844]) (Crustacea, Decapoda). Direction 36
chilensis Diesing 1859 [originally in Echiurus], SitzBer. Kais. Akad. Wiss. Wien, 37: 778 (specific name of the type species of Urechis Seitz 1907) (Echiuroidea). Opinion 941
chilensis Molina 1782 [originally in Pyura], Sag. Stor. nat. Chili: 348 (specific name of the type species of Pyura Molina 1782) (Ascidiacea). Opinion 1182
chilensis Molina 1782 [originally in Scorpio], Saggio sulla storia naturale del Chili, p. 347 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Arachnida). Opinion 2097
Chilodus Müller & Troschel 1844, Arch. Naturg., Jahrgang 10, 1: 85 (gender: masculine) (type species, by monotypy: Chilodus punctatus Müller & Troschel 1844, Arch. Naturg., Jahrgang 10, 1: 85) (Osteichthyes). Opinion 1150
Chilolepis Fitzinger 1843, Syst. Rept.: 26 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 794
Chilosia Agassiz 1846, Nomenclatoris Zoologici Index Universalis, p. 80 (an unjustified emendation of Cheilosia Meigen 1822) (Insecta, Diptera). Opinion 1744
Chimaera Hitchcock 1858, Ichnol. New England: 118 (a junior homonym of Chimaera Linnaeus 1758). Direction 56
Chimaera Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 236 (gender: feminine) (type species, by Linnaean tautonymy: Chimaera monstrosa Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 236) (Chondrichthyes). Opinion 77, Direction 56
Chimaera Ochsenheimer 1808, Schmett. Europa, 2: 2 (a junior homonym of Chimaera Linnaeus 1758). Direction 56
Chimaera Poli 1791, Test. Sicil., 1: Introd. 31 (a junior homonym of Chimaera Linnaeus 1758). Direction 56
chimaera Rothschild 1895 [originally in Uratelornis], Novit. zool., 2: 479 (specific name of the type species of Uratelornis Rothschild 1895) (Aves). Direction 43
chimaerae Krøyer 1852 [originally in Crobylophorus], Danmarks fiske, 3(2): 813 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 913
Chimaira Duméril 1856, Mém. Acad. Sci. Inst. France, 27: 155 (an incorrect subsequent spelling for Chimaera Linnaeus 1758). Direction 56
chinensis Günther 1889 [originally in Ablabes], Ann. Mag. nat. Hist., (6)4: 220 (Reptilia). Opinion 744
chinensis De Geer 1773 [originally in Cicada laternaria] (Arthropoda). ICZN 2014: Opinion 2333
chinensis Saussure 1863 [originally in Odynerus], Mém. Soc. Phys. Hist. Nat. Genève, 17: 230 (specific name of the type species of Stenodynerus Saussure 1863) (Insecta, Hymenoptera). Opinion 893
chinensis Linnaeus 1758 [originally in Patella], Systema Naturae, Ed. 10, vol. 1, p. 781 (specific name of the type species of Calyptraea Lamarck 1799) (Gastropoda). Direction 73
chiragra Fabricius 1775 [originally in Cancer], Syst. Entomol.: 409 (specific name of the type species of Lissa Leach 1815) (Crustacea, Decapoda). Opinion 522
chiragra Fabricius 1794 [originally in Lygaeus], Entomol. syst., 4: 168 (specific name of the type species of Megalonotus Fieber [1860]) (Insecta, Hemiptera). Opinion 676
chiragra Fabricius 1781 [originally in Squilla], Spec. Ins., 1: 515 (specific name of the type species of Gonodactylus Berthold 1827) (Crustacea, Stomatopoda). Opinion 785
Chitinotylenchus Micoletzky 1922, Arch. Naturges., A 87: 546, 575 (gender: masculine) (type species, by designation by Filipjev 1936 (Proc. helminthol. Soc. Washington, 3: 81): Chitinotylenchus paragracilis Micoletzky 1922, Arch. Naturges., A 87: 547, 575) ruled under the plenary power not to be given priority over Ditylenchus Filipjev 1936 whenever the two names are considered synonyms (Nematoda). Opinion 1184
Chitonigenus [Renier] [1807], [Tav. serv. Class. Conn. Anim.]: Tav. VIII (included in a work rejected for nomenclatural purposes). Opinion 427
chitra Nutaphand 1986 [originally in Chitra], Thai Zoological Magazine, 1(4): 66, ruled under the plenary power to be given precedence over the name Chitra selenkae Jaekel 1911 whenever the two are considered to be synonyms (Reptilia). Opinion 2119
Chloralictus Robertson 1902, Canadian Entomologist, 34: 245 (gender: masculine) (type species, by original designation: Halictus cressonii Robertson 1890), ruled under the plenary power to be given precedence over Paralictus Robertson 1901 whenever the two names are considered to be synonyms (Insecta, Hymenoptera). Opinion 1882
chlorechis Pel [1851] [originally in Vipera], Nederlandsch Tijdschrift voor Jagtkunde, 1: 172 (senior subjective synonym of the specific name of Vipera chloroechis Schlegel 1855, the type species of Atheris Cope 1862) (Reptilia, Serpentes). Opinion 1634
Chlorima Germar 1817, Magazin der Entomologie, 2: 341 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Insecta, Coleoptera). Opinion 1642
Chlorocurtis Kemp 1925, Rec. Indian Mus., 27: 272, 279 (gender: masculine) (type species, by monotypy: Chlorocurtis miser Kemp 1925, Rec. Indian Mus., 27: 280, valid name: Virbius jactans Nobili 1904) (Crustacea, Decapoda). Opinion 470
chlorocyanus Duméril & Bibron 1837 [originally in Anolis] (Reptilia, Squamata): conservation of usage of specific name by designation of a neotype not approved. ICZN 2020: Opinion 2449 (Case 3672)
Chlorodiella Rathbun 1897, Proceedings of the Biological Society of Washington, 11: 157 type species Cancer niger Forskål 1775 (Crustacea) Opinion 2204
CHLORODIELLINAE Ng & Holthuis 2007, Bulletin of Zoological Nomenclature, 64(1): 22 subfam. nov. (type genus Chlorodiella Rathbun 1897) (Crustacea) Opinion 2204
CHLORODIINAE Dana 1851, American Journal of Science and Arts, (2)12(34): 125 a familygroup name based on the generic name Chlorodius, a misspelling for Clorodius A.G. Desmarest 1823 (Crustacea) Opinion 2204
chlorodippe Herrich-Schaeffer 1851 [originally in Argynnis], Syst. Schmett. Europe, 6: 5 (Insecta, Lepidoptera). Opinion 923
chlorodippe Villiers & Guénée 1835 [originally in Argynnis], Tab. syn. Lep. Europe: 56 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 923
Chlorodius Milne Edwards 1834, Histoire naturelle des Crustacés, comprenant l’anatomie, la physiologie et la classification de ces animaux, vol. 1, p. 399 a misspelling of Clorodius A.G. Desmarest 1823 (Crustacea) Opinion 2204
Chlorodopsis Milne Edwards 1863, Ann. Sci. nat., Paris (Zool.), (4)20: 292 (a nomen nudum). Direction 37
Chlorodopsis Milne Edwards 1873, Nouv. Arch. Mus. Hist. nat., Paris, 9: 227 (gender: feminine) (type species, by designation by Rathbun 1922 (Smithson. misc. Coll., 73 (No. 1): 26): Chlorodopsis melanochirus Milne Edwards 1873, Nouv. Arch. Mus. Hist. nat., Paris, 9: 228) (Crustacea, Decapoda). Opinion 73, Direction 37
Chloroechis Bonaparte 1849, Proceedings of the Zoological Society of London, 1849: 145 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Reptilia, Serpentes). Opinion 1634
chlorographa Hübner 1818 [originally in Leptosia], Zutr. Samml. exot. Schmett., 1: 13, pl. 9, figs. 47, 48 (specific name of the type species of Leptosia Hübne 1818) (Insecta, Lepidoptera). Opinion 584
Chlorophanus Sahlberg 1823, Periculi entomographici, species insectorum nondum descriptas proposituri, fasciculus, p. 4 (gender: masculine) (type species, by monotypy: Chlorophanus fallax Sahlberg 1823, a junior subjective synonym of Curculio excisus Fabricius 1801) (Insecta, Coleoptera). Opinion 1642
chlorophilus Friend 1913 [originally in Chamaedrilus] (Annelida). ICZN 2018: Opinion 2423
CHLOROPINAE Loew 1862, in Peters, Naturwiss. Reise Mossambique, 5: 34 (type genus: Chlorops Meigen 1803) (Insecta, Diptera). Direction 28
Chlorops Meigen 1803, Mag. f. Insektenk. (Illiger), 2: 278 (gender: feminine) (type species, by designation under the plenary power: Musca pumilionis Bjerkander 1778, K. Vetensk.-Akad. Handl., Stockholm, 39: 201) (Insecta, Diptera). Opinion 348
chlorostigma Gray 1831 [originally in Monitor] (Reptilia). ICZN 2020: Opinion 2451
chlorotis Forster 1794 [originally in Muscicapa], Mag. merkwürdig. neuen Reise Beschreib., 5: 128 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 410
Chlorotocella Balss 1914, Abh. K.-bayer. Akad. Wiss., Suppl., 2(10): 33 (gender: feminine) (type species, by monotypy: Chlorotocella gracilis Balss 1914, Abh. K.-bayer. Akad. Wiss., Suppl., 2(10): 33) (Crustacea, Decapoda). Opinion 470
Chlorotocoides Kemp 1925, Rec. Indian Mus., 27: 271, 276 (gender: masculine) (type species, by monotypy: Chlorotocus spinicauda de Man 1902, Abh. Senckenb. naturf. Ges., 25: 856) (Crustacea, Decapoda). Opinion 470
Chlorotocus Milne Edwards 1882, Arch. Miss. Sci. litt., (3)9: 14 (gender: masculine) (type species, by monotypy: Chlorotocus gracilipes Milne Edwards 1882, Arch. Miss. Sci. litt., (3)9: 14, valid name: Pandalus crassicornis Costa 1871) (Crustacea, Decapoda). Opinion 470
Choerodes Leidy 1852, Proceedings of the Academy of Natural Sciences of Philadelphia, 6: 52 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Mammalia, Artiodactyla). Opinion 1393
Choeropsis Leidy 1852, Journal of the Academy of Natural Sciences of Philadelphia, (2)2: 213 (gender: feminine) (type species, by monotypy: Hippopotamus liberiensis Morton 1849) (Mammalia, Artiodactyla). Opinion 1393
Choetoderma Swainson 1839, The Natural History of Fishes, Amphibians & Reptiles, or monocardian animals, 2: 194, 327, 441 (an incorrect original spelling for Chaetodermis Swainson 1839). Opinion 764
Choloepus Illiger 1811, Prodr. Syst. Mamm. Avium: 108 (gender: masculine) (type species, by subsequent designation by Gray 1827 (Synopsis of the species of the Class Mammalia ..., vol. 5 in: Griffith, E., Smith, C.H. & Pidgeon, E. (Eds.), The animal kingdom arranged in conformity with its organisation, by the Baron Cuvier ..., p. 275: Bradypus didactylus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 35) (Mammalia). Opinion 91, Opinion 1922, Direction 24
Cholus Germar 1824, Insectorum, species novae aut minus cognitae, descriptionibus illustratae, vol. 1, Coleoptera, p. 212 (gender: masculine) (type species, by subsequent designation by Schönherr 1826, Curculionidum dispositio methodica, p. 20: Cholus albicinctus Germar 1824) (Insecta, Coleoptera). Opinion 1449
Chopinia d’Abrera 2001 (Lepidoptera). ICZN 2015: Opinion 2358
CHORAGIDAE Kirby 1819, Transactions of the Linnean Society of London, 12: 447 (type genus: Choragus Kirby 1819), ruled under the plenary power that this name and other familygroup names based on Choragus are not to be given priority over ANTHRIBIDAE Billberg 1820 and other family-group names based on Anthribus Geoffroy 1762 whenever their type genera are placed in the same family-group taxon (Insecta, Coleoptera). Opinion 1756
Choragus Kirby 1819, Transactions of the Linnean Society of London, 12: 447 (gender: masculine) (type species, by monotypy: Choragus sheppardi Kirby 1819) (Insecta, Coleoptera). Opinion 1756
chordatus Shaw 1791 [originally in Stylephorus], Philosophical Transactions of the Royal Society of London, 1: 90 (specific name of the type species of Stylephorus Shaw 1791) (Osteichthyes, Saccopharyngiformes). Opinion 1603
chorea Fabricius 1781 [originally in Musca], Spec. Ins., 2: 444 (specific name of the type species of Lonchaea Fallén 1820) (Insecta, Diptera). Opinion 652
Chorioptes Gervais & Beneden 1859, Zool. med., 1: 463 (gender: masculine) (type species, by original designation: Sarcoptes caprae Delafond & Bourguignon 1858 (January), Arch. gén. Méd., (5)11: 29, 31) (Arachnida). Opinion 104, Direction 93
Chorismus Bate 1888, Rep. Voy. ‘Challenger’ (Zool.), 24: 577, 616 (gender: masculine) (type species, by designation by Calman 1907 (Nat. Antarct. Exped., Nat. Hist., 2 (Crust.) (1): 3): Chorismus tuberculatus Bate 1888, Rep. Voy. ‘Challenger’ (Zool.), 24: 617) (Crustacea, Decapoda). Opinion 470
Chorista Klug 1836, Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlichen Preussischen Akademie der Wissenschaften zu Berlin, 1: 54 (gender: masculine) (type species, by subsequent monotypy Chorista australis Klug 1838) (Insecta, Mecoptera). Opinion 2047
CHORISTEIDAE Verrill 1882, Transactions of the Connecticut Academy of Arts and Sciences, 5(2): 540 (type genus: Choristes Carpenter in Dawson 1872), spelling emended from CHORISTIDAE by the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Choristes is CHORISTE- (Gastropoda). Opinion 2047
Choristes Carpenter in Dawson 1872, The Canadian Naturalist and Quarterly Journal of Science, (n.s.)6(4): 392 (gender: masculine) (type species, by monotypy: Choristes elegans Carpenter in Dawson 1872) (Gastropoda). Opinion 2047
CHORISTIDAE Esben-Petersen 1915, Entomologiske Meddelelser, (2)5: 232 (type genus: Chorista Klug 1836) (Insecta, Mecoptera). Opinion 2047
CHORISTIDAE Verrill 1882, Transactions of the Connecticut Academy of Arts and Sciences, 5(2): 540, spelling emended to CHORISTEIDAE following the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Choristes is CHORISTE- (Gastropoda). Opinion 2047
Choristochromata Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 564 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
Chorthippus Fieber 1852, in Kelch, Grund. Orth. Oberschles.: 1 (gender: masculine) (type species, by designation by Kirby 1910 (Syn. Cat. Orthopt., 3: 185): Acrydium albomarginatum de Geer 1773, Mém. Hist. Ins., 3: 480) (Insecta, Orthoptera). Opinion 609
Chortoicetes Brunner von Wattenwyl 1893, Ann. Mus. Stor. nat. Genova, 33: 123 (gender: feminine) (type species, by designation under the plenary power: Epacromia terminifera Walker 1870, Cat. Dermapt. Saltat. Brit. Mus., 4: 777) (Insecta, Orthoptera). Opinion 357
chrishna Forbes 1846 [originally in Ammonites], Transactions of the Geological Society, London, 7: 103, ruled under the plenary power not to be given priority over the specific name of Ammonites neubergicus Hauer 1858 whenever the two names are considered to be synonyms (Cephalopoda, Ammonoidea). Opinion 1519
Chromadora Bastian 1865, Transactions of the Linnean Society of London, 25: 167 (gender: feminine) (type species, by designation under the plenary power: Chromadora nudicapitata Bastian 1865) (Nematoda). Opinion 1815
Chromis Cuvier in Desmarest 1814, Bulletin des Sciences, par la Société Philomatique de Paris, (3)1: 88 (gender, as confirmed by the Commission: feminine) (type species, by original designation: Sparus chromis Linnaeus 1758) (Osteichthyes, Perciformes). Opinion 1417
chromis Linnaeus 1758 [originally in Sparus], Systema Naturae, Ed. 10, vol. 1, p. 280 (specific name of the type species of Chromis Cuvier in Desmarest 1814) (Osteichthyes, Perciformes). Opinion 1417
CHROMODORIDIDAE Bergh 1892, Malacologische Untersuchungen in: Reisen im Archipel der Philippinen von Dr C. Semper, section 2, vol. 3, part 18, p. 1103, correction of CHROMODORIDAE (type genus: Chromodoris Alder & Hancock 1855) (Gastropoda). Opinion 1375
Chromodoris Alder & Hancock 1855, Monograph of the British nudibranchiate Mollusca, Appendix, p. xvii (gender: feminine) (type species, by monotypy: Doris magnifica Quoy & Gaimard 1832) (Gastropoda). Opinion 1375
chronus Gray 1833 [originally in Diura], Entomol. Aust., 1: 20, 26, pl. 5, fig. 2, as interpreted by the lectotype designated by Key 1960 (Bull. zool. Nomencl., 17: 236) (valid name at the date of Opinion 641 of the type species of Ctenomorpha Gray 1833) (Insecta, Phasmida). Opinion 641
chryxus Doubleday 1849 [originally in Chionobas] (currently Oeneis chryxus; Insecta, Lepidoptera, Nymphalidae): conservation of usage by designation of a neotype not granted. ICZN 2019: Opinion 2434 (Case 3495)
Chrysaor Hübner [1809], Samml. exot. Schmett., 1: pl. [161] (a junior homonym of Chrysaor Montfort 1808). Opinion 789
Chrysaor Hübner 1808, Erste Zutr. Samml. exot. Schmett.: 4 (included in a work rejected for nomenclatural purposes). Opinion 789
chrysis Lichtenstein 1796 [originally in Lygaeus], Catalogus musei zoologici ditissimi Hamburgi, d. III. Februar 1796 auctionis lege distrahendi. Sectio Tertia. Continens Insecta, p. 109, ruled under the plenary power to be available despite having been published in a suppressed work (Insecta, Heteroptera). Opinion 1820
chrysis Bernhauer 1936 [originally in Staphylinus], Revue de Zoologie et de Botanique Africaines, 29(1): 24, ruled under the plenary power to be not invalid by reason of being a junior primary homonym of S. chrysis Gravenhorst 1806 (Insecta, Coleoptera). Opinion 2053
chrysis Gravenhorst 1806 [originally in Staphylinus], Monographia Coleopterorum Micropterorum, p. 214 (Insecta, Coleoptera). Opinion 2053
Chrysitella Zeller 1839, Isis (von Oken), 1839(3): col. 203 (an unused objective synonym of Roeslerstammia Zeller 1839) (Insecta, Lepidoptera). Opinion 1910
Chrysobothris Eschscholtz 1829, Zoologischer Atlas, enthaltend Abbildungen und Beschreibungen neuer Thierarten ... auf der Russisch-Kaiserlichen Kriegsschlupp Predpriaetië in den Jahren 1823-1826, part 1, p. 9 (gender: feminine) (type species, by subsequent designation by Westwood [1838], Synopsis of the genera of British insects, p. 24 (published with An introduction to the modern classification of insects ..., vol. 1, part 3, pp. 113-160): Buprestis chrysostigma Linnaeus 1758), ruled under the plenary power to be the correct original spelling of Chrysobotris (Insecta, Coleoptera). Opinion 1784
Chrysobotris Eschscholtz 1829, Zoologischer Atlas, enthaltend Abbildungen und Beschreibungen neuer Thierarten ... auf der Russisch-Kaiserlichen Kriegsschlupp Predpriaetië in den Jahren 1823-1826, part 1, p. 9, ruled under the plenary power to be an incorrect original spelling of Chrysobothris (Insecta, Coleoptera). Opinion 1784
chrysocephala Lewin 1808 [originally in Meliphaga], Birds New Holland: 10 (specific name of the type species of Sericulus Swainson 1825) (Aves). Direction 43
Chrysochus Chevrolat in Dejean 1836, Catalogue des coléoptères de la collection de M. le Comte Dejean. Deuxième édition [1833–1836]. Livraison 5. Méquignon-Marvis Pères & Fils, Paris, p. 413, (gender: masculine) type species Chrysomela praetiosa Fabricius 1792 (a junior synonym of Chrysomela asclepiadea Pallas 1773) by subsequent designation by Jacoby (1908) (Insecta, Coleoptera). Opinion 2298
Chrysoclista Stainton 1854, Insecta Britannica, Lepidoptera, p. 240 (gender: feminine) (type species, by subsequent designation by Fletcher 1928, Catalogue of Indian Insects, part 16, p. 25: Phalaena linneella Clerck 1759) (Insecta, Lepidoptera). Opinion 1418
Chrysodema Laporte & Gory 1835, Histoire naturelle et iconographie des insectes coléoptères, vol. 1, p. 1 (gender: feminine) (type species, by designation under the plenary power: Chrysodema sonnerati Laporte & Gory 1835) (Insecta, Coleoptera). Opinion 2076
chrysodon Houttuyn [1787] [originally in Nereis], Anim. Mus. Houtt. Index: 114 (included in a work suppressed under the plenary power for nomenclatural purposes). Opinion 380
chrysolepis Duméril & Bibron 1837 [originally in Anolis], Erpétologie général ou histoire naturelle complète des reptiles, vol. 4, Librairie Encyclopédique de Roret, Paris, p. 94, as defined by the lectotype (MHNP 2436, Mana, French Guiana) designated by Vanzolini & Williams (1970), with the endorsement that it is to be given precedence over the name nitens Wagler 1830, as published in the binomen Draconura nitens, whenever the two are considered to be synonyms (Reptilia, Squamata). Opinion 2256
Chrysolina Motschulsky 1860, Schrenck’s Reisen und Forschungen im Amur-Lande, 2: 210 (gender: feminine) (type species, by original designation: Chrysomela staphylaea Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 370) ruled under the plenary power to be given precedence over the generic name Atechna Chevrolat 1837 whenever the two names are considered synonyms (Insecta, Coleoptera). Opinion 1279
Chrysolophus Gray [1833-34], Ill. Ind. Zool., 2: pl. 41, fig. 2 (gender: masculine) (type species, by monotypy: Phasianus pictus Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 158) (Aves). Opinion 67
Chrysolophus Swainson 1837, Nat. Hist. Classif. Birds, 2: 225 (a junior homonym of Chrysolophus Gray [1833-34]). Direction 44
Chrysomela Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 368 (gender: feminine) (type species, by designation by Latreille 1810 (Considérations générales sur l’ordre naturel des Crustacés, Arachnides et Insectes, Paris, 3: 432): Chrysomela populi Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 370) (Insecta, Coleoptera). Opinion 1279
chrysomelinus Linnaeus 1758 [originally in Staphylinus], Systema Naturae, Ed. 10, vol. 1, p. 423 (specific name of the type species of Tachyporus Gravenhorst 1802) (Insecta, Coleoptera). Opinion 1743
Chrysomyia Macquart 1834, Histoire naturelle des Insectes. Diptères, vol. 2, p. 262 (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 1443
Chrysopa [Leach 1815], in Brewster’s Edinburgh Ency., 9(1): 138 (gender: feminine) (type species, by designation under the plenary power: Hemerobius perla Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 549) (Insecta, Neuroptera). Opinion 211
CHRYSOPHANIDI Scudder (1889), Butts. New England (2) (Pt. 6): 797 (type genus: Chrysophanus Hübner 1818, incorrectly treated as having Papilio hippothoe Linnaeus 1761 as type species) (invalid under the plenary power because based on a misidentified type genus). Opinion 541
Chrysophanus Hübner 1818, Zutr. Samml. exot. Schmett., 1: 24, no. 68; id., [1819], Verz. bekannt. Schmett., (5): 72 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 541
CHRYSOPINA Schneider 1851, Symbolae ad monographiam generis Chrysopae, Leach. Vratislaviae: 35 (type genus: Chrysopa [Leach 1815]) (an incorrect original spelling for CHRYSOPINAE Schneider 1851). Opinion 851
CHRYSOPINAE (correction of CHRYSOPINA) Schneider 1851, Symbolae ad monographiam generis Chrysopae, Leach. Vratislaviae: 35 (type genus: Chrysopa [Leach 1815]) (Insecta, Neuroptera). Opinion 851
CHRYSOPINAE Lutz 1909, Zool. Jahrb., Suppl. 10 (4): 674 (type genus: Chrysops Meigen 1803) (ruled under the plenary power to be an incorrect original spelling for CHRYSOPSINAE Lutz 1909). Opinion 851
Chrysops Meigen 1803, Mag. f. Insektenk. (Illiger), 2: 265 (gender: masculine) (type species, by monotypy: Tabanus caecutiens Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 602) (Insecta, Diptera). Opinion 851
chrysops Herbst in Jablonsky 1797 [originally in Curculio], Natursystem aller bekannten in- und ausländischen Insekten. . . (Der Käfer), part 7, p. 63, specific name of the type species of Tylotus Schoenherr 1823 and of Tyloderes Schoenherr 1826 (Insecta, Coleoptera). Opinion 2300.
chrysops Latham 1801 [originally in Sylvia], Index orn., Suppl.: liv (Aves). Opinion 410
CHRYSOPSINAE (emendation under the plenary power of CHRYSOPINAE) Lutz 1909, Zool. Jahrb., Suppl. 10 (4): 674 (type genus: Chrysops Meigen 1803) (Insecta, Diptera). Opinion 851
chrysopterus Latham 1801 [originally in Merops], Supplementum Indicis Ornithologici, sive Systematis Ornithologiae, p. 33 (Aves). Opinion 2240
chrysopterus Bloch & Schneider 1801 [originally in Scarus], Systema Ichthyologiae iconibus cx illustratum, p. 286 (specific name of the type species of Sparisoma Swainson 1839) (Osteichthyes, Perciformes). Opinion 1945
chrysoscelis Cope 1880 [originally in Hyla femoralis], Bulletin of the United States National Museum, 17: 29, as defined by the neotype (specimen no. 37293 in the Texas Natural History Collection, University of Texas at Austin) designated under the plenary power (Amphibia, Anura). Opinion 1716
chrysostigma Linnaeus 1758 [originally in Buprestis], Systema Naturae, Ed. 10, vol. 1, p. 409 (specific name of the type species of Chrysobothris Eschscholtz 1829) (Insecta, Coleoptera). Opinion 1784
chrysothorax Lichtenstein 1796 [originally in Vespa], Catalogus musei zoologici ditissimi Hamburgi, d. III. Februar 1796 auctionis lege distrahendi. Sectio Tertia. Continens Insecta, p. 203, ruled under the plenary power to be available despite having been published in a suppressed work (Insecta, Hymenoptera). Opinion 1820
chrysotis Latham 1801 [originally in Certhia], Index orn., Suppl.: 38 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 792
chrystalii Scott 1894 [originally in Ectinosoma], Transactions of the Linnean Society of London. Ser. 2. Zoology, 6: 1–161, p. 92, (specific name of the type species of Halectinosoma Vervoort 1962) (Crustacea, Copepoda). Opinion 2248
Chrystallophrisson Lütken 1877, Zool. Record, 12 (for 1875), Vermes: 543 (an incorrect subsequent spelling for Crystallophrisson Möbius 1875). Opinion 764
Chrystallophrysson Wirén 1892, K. svensk. Vetensk.-Akad. Handl., 23(12): 4 (an incorrect subsequent spelling for Crystallophrisson Möbius 1875). Opinion 764
CHTENOPTERYGIDAE Grimpe 1922, Sitzungsberichte der naturforschenden Gesellschaft zu Leipzig, 45-48 (1918-1921): 45 (type genus: Chtenopteryx Appellöf 1890) (corrected original spelling of CTENOPTERYGIDAE) (Cephalopoda, Coleoidea). Opinion 1793
Chtenopteryx Appellöf 1890, Bergens Museums Aarsberetning, 1889(33): 3 (gender: feminine) (type species, by monotypy: Chtenopteryx fimbriatus Appellöf 1890, a junior subjective synonym of Sepioteuthis sicula Verany 1851), spelling confirmed as correct by the Commission (Cephalopoda, Coleoidea). Opinion 1793
Chuangia Walcott 1911, Smithson. misc. Colls., 57(4): 72 (gender: feminine) (type species, by designation under the plenary power: Ptychoparia? batia Walcott 1905, Proc. U.S. nat. Mus., 29(1415): 75, 76) (Trilobita). Opinion 1261
Chyromya Robineau-Desvoidy 1830, Essai sur les Myodaires: 620 (gender: feminine) (type species, by monotypy: Chyromya fenestrarum Robineau-Desvoidy 1830, Essai sur les Myodaires: 621, valid name: Musca flava Linnaeus 1758) (Insecta, Diptera). Opinion 847
CHYROMYIDAE Hendel 1916, Entomol. Mitt., 5: 297 (type genus: Chyromya Robineau-Desvoidy 1830) (Insecta, Diptera). Opinion 847
Chyusata Tottenham 1945, Proc. roy. entomol. Soc. London (B), 14: 70 (a junior objective synonym of Tachyusa Erichson 1837). Opinion 600