International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS
International Commission on Zoological Nomenclature:
OPINIONS and DIRECTIONS
taxa names:
Me
Mechanitis [Illiger] 1807, Allgem. Lit. Ztg., Halle (Jena), 1807 (No. 2): 1180, 1181 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 232
Mechanitis Fabricius 1807, Mag. f. Insektenk. (Illiger), 6: 284 (conserved under the plenary power) (gender: feminine) (type species, by designation by Scudder 1875 (Proc. amer. Acad. Arts Sci., Boston, 10: 212): Papilio polymnia Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 466) (Insecta, Lepidoptera). Opinion 232
Mecistocephalus Newport 1843 Proceedings of the Zoological Society of London, 10: 178 (gender: masculine), type species designated under the plenary power: Mecistocephalus punctifrons Newport 1843 (Chilopoda). Opinion 2218
Mecocerus Billberg 1820, Enum. Ins. Mus. Billberg: 44 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 982
Mecocerus Schoenherr 1833, Gen. Spec. Curc., 1(1): 115 (gender: masculine) (type species, by original designation: Mecocerus gazella Gyllenhal in Schoenherr 1833, Gen. Spec. Curc., 1(1): 115) (Insecta, Coleoptera). Opinion 982
Medaeus Dana 1851, Amer. J. Sci., (2)12: 125 (gender: masculine) (type species, by subsequent monotypy: Medaeus ornatus Dana 1852, Proc. Acad. nat. Sci. Philadelphia, 6: 76) (Crustacea, Decapoda). Opinion 712
media Koch 1816 [originally in Gallinago], Syst. baier. Zool., 1: 314 (a junior objective synonym of gallinago Linnaeus 1758 [originally in Scolopax]). Direction 39
medicinalis Linnaeus 1758 [originally in Hirudo], Systema Naturae, Ed. 10, vol. 1, p. 649 (specific name of the type species of Hirudo Linnaeus 1758) (Hirudinea). Direction 77
medinensis Linnaeus 1758 [originally in Gordius], Systema Naturae, Ed. 10, vol. 1, p. 647 (specific name of the type species of Dracunculus Reichard 1759) (Nematoda). Direction 102
medius Retzius 1783 [originally in Papilio margaritaceus] (Arthropoda). ICZN 2014: Opinion 2333
medius Retzius 1783 [originally in Vespa crabro] (Arthropoda). ICZN 2014: Opinion 2333
Megachile Latreille 1802, Hist. nat. Fourmis: 434 (gender: feminine) (type species, by designation by Curtis 1828 (Brit. Entomol., 5: pl. 218): Apis centuncularis Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 575) (Insecta, Hymenoptera). Opinion 219
Megalichthys Agassiz 1835, in Hibbert, Trans. roy. Soc. Edinburgh, 13: 202 (gender: masculine) (type species, by monotypy: Megalichthys hibberti Agassiz 1835, in Hibbert, Trans. roy. Soc. Edinburgh, 13: 202, as interpreted by the neotype designated under the plenary power) (Osteichthyes). Opinion 930
Megaloceros Brookes 1828, A Catalogue of the Anatomical and Zoological Museum of Joshua Brookes, Esq., part 1, p. 61 (gender: masculine) (type species, by monotypy: Megaloceros antiquorum Brookes 1828, a junior subjective synonym of Alce gigantea Blumenbach 1799), ruled under the plenary power to be the correct original spelling of Megalocerus (Mammalia, Artiodactyla). Opinion 1566
Megalocerus Brookes 1828, A Catalogue of the Anatomical and Zoological Museum of Joshua Brookes, Esq., part 1, p. 61, ruled under the plenary power to be an incorrect original spelling of Megaloceros (Mammalia Artiodactyla). Opinion 1566
Megalodon Sowerby 1827, The mineral conchology of Great Britain, part 97 (vol. 6), p. 131 (gender: masculine) (type species, by monotypy: Megalodon cucullatus Sowerby 1827) (Bivalvia). Opinion 1829
Megalodontes Latreille 1802, Histoire naturelle, générale et particulière des crustacés et des insectes, vol. 3, p. 302 (gender: masculine) (type species, by monotypy: Tenthredo cephalotes Fabricius 1781) (Insecta, Hymenoptera). Opinion 1829
MEGALODONTESIDAE Konow 1897, Annalen des Königlichen-Kaiserlichen Naturhistorischen Hofmuseums, (Wien), 12: 1 (type genus: Megalodontes Latreille 1802), spelling emended from MEGALODONTIDAE by the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Magalodontes Latreille 1802 is MEGALODONTES- (Insecta, Hymenoptera). Opinion 1829
MEGALODONTIDAE Konow 1897, Annalen des Königlichen-Kaiserlichen Naturhistorischen Hofmuseums, (Wien), 12: 1, spelling emended to MEGALODONTESIDAE following the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Megalodontes Latreille 1802 is MEGALODONTES- (Insecta, Hymenoptera). Opinion 1829
MEGALODONTIDAE Morris & Lycett 1853, A monograph of the Mollusca from the Great Oolite, chiefly from Minchinhampton and the coast of Yorkshire, part 2, p. 78 (type genus: Megalodon Sowerby 1827) (Bivalvia). Opinion 1829
Megalonaias Utterback 1915, American Midland Naturalist, vol. 4(4), p. 123 (gender: feminine) (type species, by original designation: Unio heros Say 1829, a junior subjective synonym of Unio giganteus Barnes 1823) (Bivalvia). Opinion 1487
MEGALONOTINI Slater 1957, Bull. Brooklyn entomol. Soc., 52: 35 (type genus: Megalonotus Fieber [1860]) (Insecta, Hemiptera). Opinion 676
Megalonotus Fieber [1860], Europ. Hemipt.: 181 (gender: masculine) (type species, by designation by China 1941 (Proc. R. entomol. Soc. London (B), 10: 130): Lygaeus chiragra Fabricius 1794, Entomol. syst., 4: 168) (Insecta, Hemiptera). Opinion 676
Megalopalpus Röber 1886, CorrespBl. entomol. Ver. Iris, 1: 51 (gender: masculine) (type species, by original designation: Megalopalpus simplex Röber 1886, CorrespBl. entomol. Ver. Iris, 1: 51, pl. 4, fig. 4) (Insecta, Lepidoptera). Opinion 566
Megalophrys Wagler 1830, Natürliches System der Amphibien ..., p. 204 (an unjustified emendation of Megophrys Kuhl & van Hasselt 1822) (Amphibia, Anura). Opinion 1763
Megalophthalmus Gray 1832, in Griffith’s Cuvier, Anim. Kingdom, 14: 371 (a junior homonym of Megalophthalmus Leach 1830). Opinion 578
Megalophthalmus Leach 1830, Trans. Plymouth Inst., 1: 176 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 578
Megalophthalmus Lorenz 1906, Z. deutsche geol. Ges., 58: 62 (a junior homonym of Megalophthalmus Leach 1830). Opinion 578
Megalopta Smith 1853, Cat. hymenopt. Ins. Coll. Brit. Mus., 1: 83 (gender: feminine) (type species, by designation under the plenary power: Megalopta idalia Smith 1853, Cat. hymenopt. Ins. Coll. Brit. Mus., 1: 83) (Insecta, Hymenoptera). Opinion 788
megalotis Desmarest 1822 [originally in Canis], Ency. méth., Mamm. (2): 538 (valid name at the date of Opinion 384 of the type species of Otocyon Müller 1836) (Mammalia). Opinion 384
Megalotragus Van Hoepen 1932, Paleontologiese Navorsing van die Nasionale Museum, Bloemfontein, 2(5): 63 (gender: masculine) (type species, by monotypy: Megalotragus eocornutus Van Hoepen 1932, a junior subjective synonym of Bubalis priscus Broom 1909) (Mammalia). Opinion 2029
Megaperidae Manter 1934: 293 (type genus: Megapera Manter 1934) precedence over Apocreadiinae Skrjabin 1942 (Platyhelminthes, Digenea). ICZN 2022: Opinion 2483 (Case 3775)
megapoda Taylor 1942 [originally in Rana], University of Kansas Science Bulletin, 28(2): 310 (Amphibia, Anura). Opinion 1776
Megasternum Mulsant 1844, Hist. nat. coléoptères de France, Palpicornes: 187 (gender: neuter) (type species, by designation under the plenary power: Dermestes obscurus Marsham 1802, Entomol. Britannica, I Coleoptera: 72) (Insecta, Coleoptera). Opinion 1178
Megastropha Walker 1918, Univ. Michigan Studies, Publ. No. 6: 106, 207 (an incorrect subsequent spelling for Megasystropha Lea 1864). Opinion 432
Megasystropha Lea 1864, Proc. Acad. nat. Sci. Philadelphia, 1864: 5 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 432
Megathecla Robbins 2002 (Lepidoptera). ICZN 2015: Opinion 2358
MEGATHYMIDAE Comstock & Comstock 1895, Man. Study Ins.: 365 (type genus: Megathymus Scudder 1872) (Insecta, Lepidoptera). Opinion 483
Megathymus Scudder 1872, 4th Ann. Rep. Peabody Acad. Sci., 1871: 83 (gender: masculine) (type species, by original designation: Eudamus ? yuccae Boisduval & Leconte [1837], Hist. gén. Icon. Lépid. Chen. Amér. sept., 1: pl. 70, 6 figs. [no text]) (Insecta, Lepidoptera). Opinion 483
Megatyloceras Humphrey 1949, Bull. geol. Soc. Amer., 60 (No. 1): 149 (gender: neuter) (type species, by original designation: Douvilleiceras coronatum Rouchadzé 1932, Bull. Inst. géol. Géorgie, 1(3): 195, pl. 3, fig. 4; text-figs. 12, 13) (Cephalopoda). Opinion 428
megerlei Panzer 1803 [originally in Curculio], Fauna Insectorum Germanicae Initia oder Deutschlands Insecten, 87, Felssecker, Nürnberg, no. 7, ruled under the plenary power to be available from its publication by Panzer (1803), all type fixations prior to that by Kippenberg (1981) set aside under the plenary power, with the endorsement that it is not to be taken as a misidentification of Curculio meyerlaei Fabricius 1801, and ruled under the plenary power to be the specific name of the type species of Plinthus Germar 1817 and of Meleus Dejean 1821 (Insecta, Coleoptera). Opinion 2300
Megilla Fabricius [1805], Systema Piezatorum, p. 328 (a junior objective synonym of Anthophora Latreille 1803, by the type species designation under the plenary power of Apis pilipes Fabricius 1775) (Insecta, Hymenoptera). Opinion 1383
Megischyrus Crotch 1873, Cistula Entomologica, 1: 143 (gender: masculine) (type species, by original designation: Erotylus undatus Olivier 1792) (Insecta, Coleoptera). Opinion 1824
megistos Herbst 1804 [originally in Cancer], Versuch Naturgesch. Krabben Krebse, 3(4): 23 (Crustacea, Decapoda). Opinion 472
Megophrys (misspelt as ‘Mogophrys’) Kuhl & van Hasselt 1822, Algemeene Konst- en Letter-Bode, 7: 102 (gender: feminine) (type species, by monotypy: Megophrys montana Kuhl & van Hasselt 1822) (Amphibia, Anura). Opinion 1763
meigenii Loew 1866 [originally in Chlorops], Zeitschrift für Entomologie (Breslau), 20: 43, ruled under the plenary power to be not invalid by reason of being a junior primary homonym of Chlorops meigenii Fallén 1823 (Insecta, Coleoptera). Opinion 2040
Meladema Laporte 1835, Études entomologiques, ou description d’insectes nouveaux; et observations sur la synonymie, part 1, p. 98 (gender: feminine) (type species, by monotypy: Meladema coriacea Laporte 1835) (Insecta, Coleoptera). Opinion 1725
melagaster Bloch 1792 [originally in Labrus], Naturgeschichte der ausländischen Fische, part 6, p. 27 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Osteichthyes, Perciformes). Opinion 1548
Melanargia Meigen [1828], Syst. Beschr. Europ. Schmett., 1(3): 97 (conserved under the plenary power) (gender: feminine) (type species, by designation by Kirby 1894 (Allen’s Nat. Libr., Lepid., 1: 240): Papilio galathea Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 474) (Insecta, Lepidoptera). Opinion 400
MELANARGIINAE Verity 1920, Boll. Lab. Zool. gen., Portici, 14: 56 (type genus: Melanargia Meigen [1828]) (Insecta, Lepidoptera). Direction 54
melanepis Rafinesque 1814 [originally in Coluber], Précis Découv. Trav. somiolog.: 15 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 642
Melanerythronotos 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
Melanigenus [Renier] [1807] [Tav. serv. Class. Conn. Anim.]: Tav. VIII (included in a work rejected for nomenclatural purposes). Opinion 427
Melanobasis Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 549 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
melanocephala Latham 1801 [originally in Gracula], Supplementum Indicis Ornithologici, sive Systematis Ornithologiae, p. 28 (Aves). Opinion 2240
melanocephala MacLeay 1839 [originally in Myrmarachne], Annals and Magazine of Natural History, (1)2: 11, specific name of the type species of Myrmarachne MacLeay 1839 (Aranaeae). Opinion 2258
melanocephalus Kirshenblat 1938 [originally in Oxyporus], Vypusk, 1: 529, ruled under the plenary power to be not invalid by reason of being a junior primary homonym of O. melanocephalus Fabricius 1793 (Insecta, Coleoptera). Opinion 2053
melanocephalus Fabricius 1787 [originally in Staphylinus], Mantissa insectorum sistens eorum species ..., p. 222 (a nomen protectum) (Insecta, Coleoptera). Opinion 2053
melanocercus Smith 1941 [originally in Drymarchon corais], J. Washington Acad. Sci., 31: 473, 474 (a junior objective synonym of melanurus Duméril, Bibron & Duméril 1854 [originally in Spilotes]). Opinion 746
Melanochaeta Bezzi 1906 (Diptera). ICZN 2014: Opinion 2336
melanochirus Milne Edwards 1873 [originally in Chlorodopsis], Nouv. Arch. Mus. Hist. nat., Paris, 9: 228 (specific name of the type species of Chlorodopsis Milne Edwards 1873) (Crustacea, Decapoda). Direction 36
Melanochroa Broun 1882, Annals and Magazine of Natural History, (5)9: 409, and all uses of the name prior to the publication of Melanochroa Roeder 1886 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Coleoptera). Opinion 1472
Melanochroa Roeder 1886, Entomologische Nachrichten, 12(1), no. 9, p. 139 (gender: feminine) (type species, by monotypy: Melanochroa dubia Roeder 1886) (Insecta, Coleoptera). Opinion 1472
melanoleuca Latham 1801 [originally in Columba], Supplementum Indicis Ornithologici, sive Systematis Ornithologiae, p. 59 (Aves). Opinion 2240
Melanomesonotos Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 587 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
Melanonotos 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
Melanophila Eschscholtz 1829, Zoologischer Atlas, enthaltend Abbildungen und Beschreibungen neuer Thierarten, während des Flottcapitains von Kotzebue zweiter Reise um die Welt, auf der Russisch- Kaiserlichen Kriegsschlupp Predpriaetië in den Jahren 1823-1826, part 1, p. 9 (gender: feminine) (type species, by designation under the plenary power: Buprestis acuminata De Geer 1774) (Insecta, Coleoptera). Opinion 1826
melanophris Temminck 1828 [originally in Diomedea], Nouveau recueil de planches coloriées d’Oiseaux pour servir de suite et de complément aux planches enluminées de Buffon, livraison 77. Levrault, Paris, text to pl. 456, confirmed under the plenary power to be the correct original spelling (Aves, Procellariiformes). Opinion 2252
melanophrys Temminck 1839 [originally in Diomedea], Nouveau recueil de planches coloriées d’Oiseaux pour servir de suite et de complément aux planches enluminées de Buffon. livraison 102, Levrault, Paris, p. 76, deemed under the plenary power to be an incorrect subsequent spelling of Diomedea melanophris Temminck 1828 (Aves, Procellariiformes). Opinion 2252
Melanopleurae Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 554 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
Melanoplus Stål 1873, Recens. Orth., 1: 79 (gender: masculine) (type species, by designation by Scudder 1897 (Bull. U.S. nat. Mus., 20: 122): Acrydium femurrubrum de Geer 1773, Mém. Hist. Ins., 3: 498, pl. 42, fig. 5) (Insecta, Orthoptera). Opinion 835
melanops Boisduval 1828 [originally in Polyommatus], Europ. Lép. Index méth.: 13 (Insecta, Lepidoptera). Opinion 972
melanops Latham 1801 [originally in Turdus], Supplementum Indicis Ornithologici, sive Systematis Ornithologiae, p. 40 (Aves). Opinion 2240
melanopterus Quoy & Gaimard 1824 [originally in Carcharias], in Freycinet, Voy. autour Monde ‘Uranie’ & ‘Physicienne’ (Zool.): 194 (specific name of the type species of Carcharhinus Blainville 1816) (Chondrichthyes). Opinion 723
melanopyga Doria 1875 [originally in Asterophrys], Ann. Mus. civ. Stor. nat. Genova, 6: 355, 356 (specific name of the type species of Lechriodus Boulenger 1882) (Amphibia). Opinion 1063
melanoramphos Vieillot 1817 [originally in Coracia] (Aves). ICZN 2016: Opinion 2380
melanorhamphos Vieillot 1817 [originally in Coracia] (Aves). ICZN 2016: Opinion 2380
melanorhamphus Cabanis 1851 [originally in Cercoronis] (Aves). ICZN 2016: Opinion 2380
Melanospilos Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 565 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
melanotheron Rüppell 1852 [originally in Sarotherodon], Verzeichniss der in dem Museum der Senckenbergischen Naturforschenden Gesellschaft aufgestellten Sammlungen, part 4, p. 21 (specific name of the type species of Sarotherodon Rüppell 1852) (Osteichthyes, Perciformes). Opinion 1548
melanothrix Kirby 1837 [originally in Trachyphloeus], Fauna Boreali-Americana, 4: 202 (specific name of the type species of Geoderces Horn 1876) (Insecta, Coleoptera). Opinion 1452
melanotica Wolfenden 1905 [originally in Gaussia], Plankton Studies, part 1, p. 5 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy) (Copepoda). Opinion 1590
melanurus Duméril, Bibron & Duméril 1854 [originally in Spilotes], Erp. Gén., 7: 224, 225 (ruled under the plenary power not to be invalidated by its senior secondary homonym, Coluber melanurus Schlegel 1837) (Reptilia). Opinion 746
melanus Olivier 1807 [originally in Galeodes], Voyage dans l’Empire Othoman, l’Égypte et la Perse, fait par ordre du gouvernement, pendant les six premières années de la République, vol. 3, p. 308 (specific name of the type species of Rhagodes Pocock 1897) (Arachnida). Opinion 2095
melas Marsham 1802 [originally in Dermestes], Entomologia britannica: 78 (specific name of the type species of Anisarthria Stephens 1830) ruled under the plenary power not to be given priority over the specific name pusillum Gyllenhal 1808, as published in the binomen Scaphidium pusillum, whenever the two names are considered synonyms (Insecta, Coleoptera). Opinion 1277
Meleagris Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 156 (gender: feminine) (type species, by Linnaean tautonymy: Meleagris gallopavo Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 156) (Aves). Direction 17
meleagris Linnaeus 1758 [originally in Phasianus], Systema Naturae, Ed. 10, vol. 1, p. 158 (specific name of the type species of Numida Linnaeus 1764) (Aves). Direction 43
meleagris Shaw 1793 [originally in Testudo], Nat. Miscell.: tab. 44 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 660
Meles Brisson 1762, Regnum Animale in classes IX distributum, sive synopsis methodica, Ed. 2, pp. 13, 183 (gender: masculine) (type species, by designation under the plenary power: Ursus meles Linnaeus 1758), ruled under the plenary power to be taken as first available from Brisson 1762, despite that being a work rejected for nomenclatural purposes (Mammalia, Carnivora). Opinion 1894
meles Linnaeus 1758 [originally in Ursus], Systema Naturae, Ed. 10, vol. 1, p. 48 (specific name of the type species of Meles Brisson 1762) (Mammalia, Carnivora). Opinion 1894
Melesium Rafinesque 1815, Analyse de la nature ..., p. 59 (a junior objective synonym of Meles Brisson 1762) (Mammalia, Carnivora). Opinion 1894
Meleus Dejean 1821, Catalogue de la collection de Coléoptères de M. le Baron Dejean, Crevot, Paris, p. 88, type species ruled under the plenary power to be Curculio megerlei Panzer 1803 by subsequent designation by Faust (1886), a junior objective synonym of Plinthus Germar 1817 (Insecta, Coleoptera). Opinion 2300
Melibaea Forbes 1838, Malac. Monensis: 4 (an incorrect subsequent spelling for Melibe Rang 1829). Opinion 697
Meliboea Forbes 1838, Malac. Monensis: 59 (an incorrect subsequent spelling for Melibe Rang 1829). Opinion 697
meliceps Cuvier 1821 [originally in Mydaus], in Geoffroy Saint-Hilaire & Cuvier, Hist. nat. Mammif., 2(27): ‘Telagon’ 2 (specific name of the type species of Mydaus Cuvier 1821) (Mammalia). Opinion 384
Melicerta Péron & Lesueur 1810, Ann. Mus. Hist. nat., Paris, 14(83): 352 (a junior homonym of Melicerta Schrank 1803). Opinion 522
Melicerta Risso 1816, Hist. nat. Crust. Nice: 109 (a junior homonym of Melicerta Schrank 1803). Opinion 522
Melicerta Schrank 1803, Fauna boica, 3(2): 302, 310 (gender: masculine) (type species, by monotypy: Sabella ringens Linnaeus 1767, Systema Naturae, Ed. 12, vol. 1, part 2, p. 1268) (Rotifera). Opinion 522
Melicerta Stephens 1833, Nomencl. Brit. Ins. (ed. 2): 129 (a junior homonym of Melicerta Schrank 1803). Opinion 522
Melicerta Tilesius 1831, Nova Acta Acad. Caes. Leop. Carol., 15(2): 257 (a junior homonym of Melicerta Schrank 1803). Opinion 522
MELICERTADAE Hudson & Gosse 1886, The Rotifera or Wheel-Animalcules, both British and foreign, 1: 30 (type genus: Melicerta Schrank 1803) (an incorrect original spelling for MELICERTIDAE Hudson & Gosse 1886). Opinion 522
MELICERTIDAE (correction by Collin, Dieffenbach, Sachse & Voigt 1912, of MELICERTADAE) Hudson & Gosse 1886, The Rotifera or Wheel-Animalcules, both British and foreign, 1: 30 (type genus: Melicerta Schrank 1803) (Rotifera). Opinion 522
melichari Fennah 1963 [originally in Leprota], Bull. zool. Nomencl., 20: 303 (specific name of the type species of Leprota Melichar 1912) (Insecta, Hemiptera). Opinion 751
melinus Hübner 1818 [originally in Strymon], Zutr. Samml. exot. Schmett., 1: 22, pl. [21], figs. 121, 122 (specific name of the type species of Strymon Hübner 1818) (Insecta, Lepidoptera). Opinion 541
Melissodes Latreille 1829, in Cuvier, Règne Anim. (ed. 2), 5: 354 (gender: feminine) (type species, by designation under the plenary power: Melissodes leprieuri Blanchard 1849, in Cuvier, Règne Anim. (ed. 3), 2: atlas pl. 129 bis, figs. 4, 4a) (Insecta, Hymenoptera). Opinion 750
Melita Bertrand 1763, Dict. Univ. Foss. Propres Foss. Accid., 2: 103 (included in a work rejected for nomenclatural purposes). Opinion 592
Melitea Lamouroux 1812, Nouv. Bull. Soc. philom. Paris, 3(63)6: 188 (a junior homonym of Melitea Péron & Lesueur 1810). Opinion 1304
Melitenses Bertrand 1763 [originally in Ophiodontes], Dict. Univ. Foss. Propres Foss. Accid., 1: 192 (included in a work rejected for nomenclatural purposes). Opinion 592
Melithaea Milne Edwards & Haime 1857, Histoire naturelle des coralliaires ou polypes proprement dits: 199 (gender: feminine) ruled under the plenary power to be an available name (type species, through Melitea Lamouroux 1812 (Nouv. Bull. Soc. philom. Paris, 3(63)6: 188): Isis ochracea Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 799) (Anthozoa). Opinion 1304
Melitodes Verrill 1864, Bull. Mus. comp. Zool., 1: 38 (a junior objective synonym of Melithaea Milne Edwards & Haime 1857). Opinion 1304
melleri Gray [1865] [originally in Rhinogale], Proc. zool. Soc. London, 1864: 575, text-fig. (specific name of the type species of Rhynchogale Thomas 1894) (Mammalia). Opinion 384
MELLICORINA Gray 1865, Proc. zool. Soc. London, 1865: 103, 154 (type genus: Mellivora Storr 1780) (an incorrect original spelling for MELLIVORINAE Gray 1865). Direction 53
Mellita Agassiz 1841, Mon. Echin., Monogr. 2: 34 (conserved under the plenary power) (gender: feminine) (type species, by designation under the plenary power: Echinodiscus quinquiesperforatus Leske 1778, Addit. J.T. Klein nat. Disp. Echin.: 197) (Echinoidea). Opinion 393
Mellita Fabricius [1823], Fortegnelse over afg. Biskop Fabriciusses eft. Natur.: 110 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy). Opinion 393
MELLITINAE Stefanini 1911, Boll. Soc. geol. ital., 30: 749 (type genus: Mellita Agassiz 1841) (Echinoidea). Direction 54
Mellivora Storr 1780, Prodr. Meth. Mamm.: 34, Tab. A (gender: feminine) (type species, by designation by Sclater 1900 (Fauna S. Africa, Mamm., 1: 109): Viverra ratel Sparrman 1777, K. Vetensk.-Akad. Handl., Stockholm, 38: 147, valid name: Viverra capensis Schreber [1776]) (Mammalia). Opinion 384
mellivora Latham 1801 [originally in Certhia], Supplementum Indicis Ornithologici, sive Systematis Ornithologiae, p. 37, suppressed under the plenary power for the Purposes of the Principle of Priority but not for those of the Principle of Homonymy (Aves). Opinion 2240
MELLIVORINAE (correction by Gill 1872 (Smithson. misc. Coll., 230: 6, 66) of MELLIVORINA) Gray 1865, Proc. zool. Soc. London, 1865: 103, 154 (type genus: Mellivora Storr 1780) (Mammalia). Direction 53
melo Quoy & Gaimard 1832 [originally in Helix] (Gastropoda). Op 2476
Meloe Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 419 (gender: masculine) (type species, by subsequent designation by Latreille 1810, Considérations générales sur l’ordre naturel des animaux composant les classes des crustacés, des arachnides, et des insectes, p. 419: Meloe proscarabaeus Linnaeus 1758) (Insecta, Coleoptera). Opinion 1918
MELOIDAE Gyllenhal 1810, Insecta Suecica descripta. Classis I. Coleoptera sive Eleutherata. Pars II, p. 481 (type genus: Meloe Linnaeus 1758), ruled under the plenary power that this name and other familygroup names based on Meloe are to be given precedence over HORIIDAE Latreille 1802 and other family-group names based on Horia Fabricius 1787 whenever their type genera are placed in the same family-group taxon (Insecta, Coleoptera). Opinion 1918
Melolontha Fabricius 1775, Systema Entomologiae ..., p. 31 (gender: feminine) (type species, by absolute tautonymy: Scarabaeus melolontha Linnaeu 1758) (Insecta, Coleoptera). Opinion 1754
Melolontha Geoffroy 1762, Histoire abrégée des insectes qui se trouvent aux environs de Paris, vol. 1, p. 195, and all uses of the name prior to the publication of Melolontha Fabricius 1775 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Coleoptera). Opinion 1754
melolontha Linnaeus 1758 [originally in Scarabaeus], Systema Naturae, Ed. 10, vol. 1, p. 351 (specific name of the type species of Melolontha Fabricius 1775) (Insecta, Coleoptera). Opinion 1754
Melorus Mulsant & Rey 1870, Histoire naturelle des punaises de France. Coréides, Alydides, Bérytides, Sténocéphalides, p. 212 (gender: masculine) (type species, by designation under the plenary power: Neides hirticornis Brullé 1835), ruled under the plenary power not to be given priority over Berytinus Kirkaldy 1900 or Lizinus Mulsant & Rey 1870, whenever it and one of the other nominal genera are considered to be synonyms (Insecta, Heteroptera). Opinion 1504
Melursus Meyer 1793, Syst.-summ. Uebers. neuest zool. Entdeck. Neuholland u. Afrika: 155 (gender: masculine) (type species, by monotypy: Melursus lybius Meyer 1793, Syst.-summ. Uebers. neuest zool. Entdeck. Neuholland u. Afrika: 156, valid name: Bradypus ursinus Shaw 1791) (Mammalia). Opinion 384
Melusina Stål 1867, Öfvers. K. svensk. Vetensk.-Akad. Förhandl., 24: 552 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 678
Melybia Stimpson [1871], Bull. Mus. comp. Zool., 2 (No. 2): 144 (gender: feminine) (type species, by monotypy: Melybia thalamita Stimpson [1871], Bull. Mus. comp. Zool., 2 (No. 2): 144) (Crustacea, Decapoda). Opinion 85, Direction 37
membranaceus Risso 1816 [originally in Peneus], Hist. nat. Crust. Nice: 98, as interpreted by the neotype designated by Holthuis 1961 (Bull. zool. Nomencl., 18: 309, 310, pl. 4) (valid name at the date of Opinion 611 of the type species of Solenocera Lucas 1849) (Crustacea, Decapoda). Opinion 611
menapiensis Hicks 1873 [originally in Ctenodonta], Quart. J. geol. Soc. London, 29: 47 (Bivalvia). Opinion 1022
menardi Latreille 1804 [originally in Aranea] (Arachnida). ICZN 2013: Opinion 2326
menardii Parker, Jones & Brady 1865 [originally in Rotalia], Ann. Mag. nat. Hist., (3)16: 20, pl. 3, fig. 81, as interpreted by the neotype proposed by Stainforth, Lamb & Jeffords 1978 (Bull. zool. Nomencl., 34: 260, 261, pls. 1, 2) and designated under the plenary power (Rhizopoda). Opinion 1234
meneghinii Mayer 1868 [originally in Pleurotoma], Journal de Conchyliologie, 16: 109, as defined by the lectotype (specimen no. H 17365 in the Mayer-Eymar collection in the Naturhistorisches Museum, Basel, figured by Mayer 1868, pl. 3, fig. 3 and by Gatto 1993, Revue de Paléobiologie, 11(2): 483-489, pl. 1, figs. 1a, 1b) designated by the Commission (specific name of the type species of Asthenotoma Harris & Burrows 1891) (Gastropoda). Opinion 1792
Menoeiderythros Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 566 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
Menoetius Dejean 1821, Catalogue de la collection de Coléoptères de M. le Baron Dejean, p. 94 (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 1451
Menopon Nitzsch 1818, Mag. Entomol. (Germar), 3: 299 (gender: neuter) (type species, by designation by Johnston & Harrison 1911 (Proc. linn. Soc. N.S. Wales, 36: 327): Pediculus gallinae Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 613, as interpreted by the neotype designated by Clay & Hopkins 1950 (Bull. Brit. Mus. (nat. Hist.) Entomol., 1: 262, fig. 56)) (Insecta, Mallophaga). Opinion 628
MENOPONIDAE Mjöberg 1910, Ark. Zool., 6(13): 26 (type genus: Menopon Nitzsch 1818) (Insecta, Mallophaga). Opinion 628
Menopum Neumann 1906, Bull. zool. Soc. France, 20: 59 (an incorrect subsequent spelling for Menopon Nitzsch 1818). Opinion 628
mercatoria Linnaeus 1758 [originally in Voluta], Systema Naturae, Ed. 10, vol. 1, p. 730 (specific name of the type species of Columbella Lamarck 1799) (Gastropoda). Direction 73
mercatorum Patterson & Wheeler 1942 [originally in Drosophila], Univ. Texas Publ., No. 4213: 93, 94 (Insecta, Diptera). Opinion 1099
mercenaria Say 1832 [originally in Corixia], Descr. new spp. heteropt. Hemipt. N. America: 39 (specific name of the type species of Corisella Lundblad 1928) (Insecta, Hemiptera). Opinion 1311
mercurialis Fabricius 1801 [originally in Curculio], Systema Eleutheratorum ..., vol. 2, p. 530 (specific name of the type species of Tropiphorus Schönherr 1842) (Insecta, Coleoptera). Opinion 1474
mercurialis Merrem 1820 [originally in Sphargis], Tent. Syst. Amph.: 19 (a junior objective synonym of coriacea Linnaeus 1766 [originally in Testudo]). Direction 56
merdigera Linnaeus 1758 [originally in Chrysomela], Systema Naturae, Ed. 10, vol. 1, p. 375 (specific name of the type species of Lilioceris Reitter 1912) (Insecta, Coleoptera). Opinion 1130
mergi Fabricius 1781 [originally in Pediculus], Spec. Ins., 2: 480 (a junior objective synonym of mergiserrati de Geer 1778 [originally in Ricinus]). Opinion 627
mergiserrati de Geer 1778 [originally in Ricinus], Mém. Hist. Ins., 7: 78, as interpreted by the neotype designated by Clay & Hopkins 1954 (Bull. Brit. Mus. (nat. Hist.) Entomol., 3: 241) (Insecta, Mallophaga). Opinion 627
Merguia Kemp 1914, Rec. Indian Mus., 10: 121 (gender: feminine) (type species, by monotypy: Hippolyte oligodon de Man 1888, J. linn. Soc. London (Zool.), 22: 277) (Crustacea, Decapoda). Opinion 470
Merhippolyte Bate 1888, Rep. Voy. ‘Challenger’ (Zool.), 24: 577, 618 (gender: feminine) (type species, by original designation: Merhippolyte agulhasensis Bate 1888, Rep. Voy. ‘Challenger’ (Zool.), 24: 619) (Crustacea, Decapoda). Opinion 470
meridiana Linnaeus 1758 [originally in Leptura], Systema Naturae, Ed. 10, vol. 1, p. 398 (specific name of the type species of Stenocorus Geoffroy 1762) (Insecta, Coleoptera). Opinion 1754
meridionalis Ameghino 1887 [originally in Abderites], Bol. Mus. de la Plata, 1: 5 (specific name of the type species of Abderites Ameghino 1887) (Mammalia). Opinion 1241
meridionalis Krulikowsky 1903 [originally in Colias hyale], Revue Russe d’Entomologie, 3(5): 302, ruled under the plenary power not to be given priority over the name of Colias hyale alfacariensis Ribbe 1905 whenever the two are considered to be synonyms (Insecta, Lepidoptera). Opinion 2180
meridionalis, , Keyserling & Blasius 1840 [originally in Gypaetos (sic)], Wirbelth. Europas: xxviii (Aves). Direction 81
meridionalis Froggatt 1898 [originally in Termes], Proceedings of the Linnean Society of New South Wales, 22: 726, as defined by the neotype (a soldier registered as Type No. 9077 in the Australian National Insect Collection, CSIRO, Canberra) designated by Hill 1942, Termites (Isoptera) from the Australian Region, p. 336, and confirmed by the Commission (Insecta, Isoptera). Opinion 1808
Meriellum Linsley 1957, Canadian Entomologist, 89: 287 (gender: neuter) (type species, by indication: Merium proteus Kirby 1837) (Insecta, Coleoptera). Opinion 1525
Meristella Hall 1859, Palaeontology of New York. New York State Cabinet of Natural History, Annual Report, 12: 78 (gender: feminine) (type species, ruled under the plenary power to be by subsequent designation by Miller 1889, North American geology and paleontology for the use of amateurs, students and scientists, p. 354: Atrypa laevis Vanuxem 1842) (Brachiopoda). Opinion 1899
Merium Kirby 1837, Fauna Boreali Americana, The Insects, part 4, p. 172 (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 1525
Merocryptus Milne Edwards 1873, J. Mus. Godeffroy, 1 (No. 4): 84 (gender: masculine) (type species, by monotypy: Merocryptus lambriformis Milne Edwards 1873, J. Mus. Godeffroy, 1 (No. 4): 85) (Crustacea, Decapoda). Opinion 73
Merolepis Rafinesque 1810, Maggio, Ind. ittiol. Sicil.: 25 (gender: feminine) (type species, by monotypy: Sparus massiliensis Lacepède 1802, in Buffon, Hist. nat. Poissons (nouvelle édition), 4: 33, 108) (Osteichthyes). Opinion 960
Merope Newman 1838, Entomol. Mag., 5(2): 180 (gender: feminine) (type species, by monotypy: Merope tuber Newman 1838, Entomol. Mag., 5(2): 180) (Insecta, Mecoptera). Direction 4
MEROPEIDAE (emendation of MEROPIDAE) Tillyard 1919, Proc. linn. Soc. N.S. Wales, 44: 603 (type genus: Merope Newman 1838) (form for this family name designated by the ruling given in Opinion 140) (Insecta, Mecoptera). Direction 6
MEROPIDAE Rafinesque 1815, Analyse Nature: 66 (type genus: Merops Linnaeus 1758) (form for this family name designated by the ruling given in Opinion 140) (Aves). Direction 6, Direction 115
MEROPIDAE Tillyard 1919, Proc. linn. Soc. N.S. Wales, 44: 603 (type genus: Merope Newman 1838) (an incorrect original spelling for MEROPEIDAE Tillyard 1919, the form for this family name designated in Opinion 140). Direction 6
Merops Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 117 (gender: masculine) (type species, by Linnaean tautonymy: Merops apiaster Linnaeus 1758, Systema Naturae, Ed. 10, vol. 1, p. 117) (Aves). Direction 4
Merria Gray 1839 (?), in Beechey, Zool. Blossom: 137 (a junior objective synonym of Vanikoro Quoy & Gaimard 1832). Opinion 1009
MERRIIDAE Hedley 1917, J. Proc. R. Soc. N.S. Wales, 51: Suppl., p. M62 (type genus: Merria Gray 1839 (?)) (based on an objective junior synonym of Vanikoro Quoy & Gaimard 1832). Opinion 1009
Merrya Récluz 1846 [‘1845’], Mag. Zool., (2)7(9): 7 (an unjustified emendation of Merria Gray 1839 (?)). Opinion 1009
merula Lesson 1828 [originally in Saxicola], in Duperrey, Voy. ‘Coquille’, Zool., 1(2): 622 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 684
Mesapus Rafinesque 1814, Précis Découv. Trav. somiolog.: 22 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 522
Mesidotea Richardson 1905, Bull. U.S. nat. Mus., 54: 347 (a junior objective synonym of Saduria Adams 1852). Opinion 643, Appendix to Opinion 643 (Bulletin of Zoological Nomenclature, vol. 21, pp. 92-93)
MESIDOTEINI Racovitza & Sevastos 1910, Arch. Zool. exp. gén., (5)6: 194 (type genus: Mesidotea Richardson 1905) (Crustacea, Isopoda). Opinion 643
Mesidothea Stephensen 1913, Medd. om Grønl., 22: 235 (an incorrect subsequent spelling for Mesidotea Richardson 1905). Opinion 643
Mesodesma Deshayes [1832], Ency. méth. (Vers), 2(2): 441 (gender: neuter) (type species, by designation by Anton [1838] (Verz. Conch. Samml. Anton: 3): Mactra donacia Lamarck 1818, Hist. nat. Anim. sans Vert., 5: 479) (Bivalvia). Opinion 1141
Mesodon Férussac 1821, Tableaux systématiques des animaux mollusques ... suivis d’un prodrome général ..., part 2, p. 37 (folio), p. 33 (quarto) (gender: masculine) (type species, by monotypy: Helix thyroidus Say 1817) (Gastropoda). Opinion 1691
Mesodonta Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 579 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
Mesocrangon Woodward 1873 (Crustacea). ICZN 2016: Opinion 2388
Mesocrangon Zarenkov 1965 (Crustacea). ICZN 2016: Opinion 2388
MESODONTIDAE Tryon 1866, American Journal of Conchology, 2: 306 (type genus: Mesodon Férussac 1821), ruled under the plenary power that this name and other family-group names based on Mesodon are not to be given priority over POLYGYRIDAE Pilsbry 1895 and other family-group names based on Polygyra Say 1818 whenever their type genera are placed in the same family-group taxon (Gastropoda). Opinion 1691
Mesolaophonte Nicholls 1941 Records of the South Australian Museum, 7(1): 102 (gender: feminine), type species by original designation Laophonte littoralis Scott & Scott 1893, with the endorsement that it is not to be given precedence over the name Heterolaophonte Lang 1948 whenever the two names are considered to be synonyms (Crustacea, Copepoda). Opinion 2249
mesoleucum Nitzsch 1818 [originally in Liotheum], Mag. Entomol. (Germar), 3: 300 (a junior objective synonym of cornicis de Geer 1778 [originally in Ricinus]). Opinion 627
Mesolobus Dunbar & Condra 1932, Nebraska geol. Surv. Bull., (2)5: 159-168, pl. 20, figs. 1-17, 23-32 (gender: masculine) (type species, by original designation: Chonetes mesolobus Norwood & Pratten 1854, J. Acad. nat. Sci. Philadelphia, 3: 27, pl. 2, figs. 7a-c) (Brachiopoda). Opinion 797
mesolobus Norwood & Pratten 1854 [originally in Chonetes], J. Acad. nat. Sci. Philadelphia, 3: 27, pl. 2, figs. 7a-c, as interpreted by the neotype designated by Hoare 1964 (Bull. zool. Nomencl., 21: 316, pl. 2, figs. 1-3) (specific name of the type species of Mesolobus Dunbar & Condra 1932) (Brachiopoda). Opinion 797
Mesoplodon Gervais 1850, Ann. Sci. nat., Paris, Zool., (3)14: 16 (gender: masculine) (type species, by original designation: Delphinus sowerbensis Blainville 1817, valid name: Physeter bidens Sowerby 1804) (Mammalia). Opinion 1289
Mesopodopsis Czerniavsky 1882, Trudui St. Petersburg Obshchest. Estest., 12(2): 145, 148 (gender: feminine) (type species, by monotypy, through Macropsis Sars 1876: Podopsis slabberi Van Beneden 1861, Mém. Acad. roy. Belg., Cl. Sci., 33: 18, pl. 7) (Crustacea, Mysidacea). Opinion 603
Mesosmittia Brundin 1956, Reports from the Institute of Freshwater Research, Drottningholm, 37: 163 (gender: feminine) (type species, by original designation and monotypy: Spaniotoma (Orthocladius) flexuella Edwards 1929) (Insecta, Diptera). Opinion 2179
Meta C.L. Koch 1835 (Arachnida). ICZN 2013: Opinion 2326
Metablastothrix Sugonjaev 1964, Entomologicheskoe Obozrenie, 43(2): 371 (gender: feminine) (type species, by designation under the plenary power: Blastothrix isomorpha Sugonjaev 1964) (Insecta, Hymenoptera). Opinion 1857
Metacalycoceras Spath 1926, Geol. Mag., 63: 81 (a junior objective synonym of Calycoceras Hyatt 1900). Opinion 557
Metacrinus Carpenter 1882, Bull. Mus. comp. Zool., 10: 167 (gender: masculine) (type species, by designation by Clark 1908 (Proc. U.S. nat. Mus., 34: 527): Metacrinus wyvillei (correction of wyvillii) Carpenter 1884, Rep. Voy. ‘Challenger’ (Zool.), 11(32): 358) (Crinoidea). Opinion 73, Direction 72
Metadiaeopes Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 573 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
METAINAE Simon 1894 (Arachnida). ICZN 2013: Opinion 2326
Metalia Gray 1855, Cat. rec. Echin. B.M. (1), Echin. Irreg.: 51 (gender: feminine) (type species, by monotypy: Spatangus sternalis Lamarck 1816, Hist. nat. Anim. sans Vert., 3: 31) (Echinoidea). Opinion 608
metallella [Denis & Schiffermüller] 1775 [originally in Tinea], Ankundung eines systematischen Werkes von dem Schmetterlingen der Wienergegend ..., p. 144 (senior subjective synonym of the specific name of Antispila stadtmuellerella Hübner [1825], the type species of Antispila Hübner [1825]) (Insecta, Lepidoptera). Opinion 1479
metallica Blanchard 1850 [originally in Heptomera], Catalogue de la collection Entomologique. Classes des Insectes. Ordre des Coléoptères, part: Melolonthidae, tome I, p. 89 (specific name of the type species of Emphania Erichson 1847 and senior subjective synonym of Emphania chloris Burmeister 1855) (Insecta, Coleoptera). Opinion 2130
Metapenaeopsis Bouvier 1905, C.R. Acad. Sci., Paris, 140: 981 (gender: feminine) (type species, by original designation: Metapenaeopsis pubescens Bouvier 1905, C.R. Acad. Sci., Paris, 140: 981, a junior secondary homonym of Penaeus pubescens Stimpson 1871, replaced by Penaeopsis miersi Holthuis 1952) (Crustacea, Decapoda). Opinion 864
Metapenaeus Wood-Mason 1891, in Wood-Mason & Alcock, Ann. Mag. nat. Hist., (6)8: 271 (gender: masculine) (type species, by original designation: Penaeus affinis Milne Edwards 1837, Hist. nat. Crust., 2: 416) ruled under the plenary power to be given precedence over the generic name Mangalura Miers 1878, whenever the two names are considered synonyms (Crustacea, Decapoda). Opinion 864
Metapeneus Alcock 1901, Descr. Cat. Indian Deep Sea Crust.: 14 (an incorrect subsequent spelling for Metapenaeus Wood-Mason 1891). Opinion 864
Metaphycus Mercet 1917, Boletin de la Real Sociedad Española de Historia Natural, 17(2): 138 (gender: masculine) (type species, by monotypy: Aphycus zebratus Mercet 1917), ruled under the plenary power to be given precedence over Aenasioidea Girault 1911 whenever the two names are considered to be synonyms (Insecta, Hymenoptera). Opinion 1898
Metasesarma Milne Edwards 1853, Ann. Sci. nat., Paris (Zool.), (3)20: 188 (gender: feminine) (type species, by monotypy: Metasesarma rousseauxi Milne Edwards 1853, Ann. Sci. nat., Paris (Zool.), (3)20: 188) (Crustacea, Decapoda). Opinion 85, Direction 37
Metastemma Amyot & Serville 1843, in Roret’s Suites à Buffon, Hist. nat. Ins. Hémipt.: 327 (an unjustified emendation of Prostemma Laporte [1832]). Direction 63
Metentomes Holmberg 1917, Anales del Museo Nacional de Historia Natural de Buenos Aires, 28: 573 (suppressed under the plenary power for the purposes of both the Principle of Priority and the Principle of Homonymy) (Insecta, Hymenoptera). Opinion 2069
methwoldensis Cooper 1955 [originally in Heterodera], A preliminary key to British species of Heterodera for use in soil examination, in: Soil Zoology, Proceedings of the University of Nottingham Second Easter School in Agricultural Science, Kevan (ed.), Butterworth, London: 277, 279 (Nematoda). Opinion 1336
Metis Philippi 1843 (Copepoda). ICZN 2013: Opinion 2326
METIDAE Boeck 1872 (Copepoda). ICZN 2013: Opinion 2326
METINAE Simon 1894 (Arachnida). ICZN 2013: Opinion 2326
Metopaster Sladen 1893, in Sladen & Spencer, in Wright, Mon. brit. foss. Echin. cret. Form. (Pal. Soc.), 2(2): 30 (gender: masculine) (type species, by designation by Rasmussen 1950 (Dansk. geol. Unders., 2 (No. 77): 16): Goniaster (Goniodiscus) parkinsoni Forbes 1848, Mem. geol. Surv. Great Brit., 2: 472) (Asteroidea). Opinion 331
Metopeurum Mordvilko 1914, Faune de la Russie, Ins. Hémipt., 1 Aphidodea (1): 67 (gender: neuter) (type species, by designation under the plenary power: Metopeurum fuscoviride Stroyan 1950, Trans. 8th Int. Congr. Entomol. 1948: 999-1001) (Insecta, Hemiptera). Opinion 646
Metopia Meigen 1803, Magazin für Insektenkunde (Illiger), 2: 280 (gender: feminine) (type species, by monotypy: Musca leucocephala Rossi 1790, a senior subjective synonym of Tachina argyrocephala Meigen 1824 but a junior primary homonym of Musca leucocephala de Villers 1789) (Insecta, Diptera). Opinion 1772
METOPIAINI Townsend 1908, Smithsonian Miscellaneous Collections, 51(2): 64 (type genus: Metopia Meigen 1803), spelling emended from METOPIINI by the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Metopia Meigen 1803 is METOPIA- (Insecta, Diptera). Opinion 1772
Metopias Gory 1832, Magasin de Zoologie, 2: pl. 42 [2 pp. text, 1 pl.] (gender: masculine) (type species, by monotypy: Metopias curculionoides Gory 1832) (Insecta, Coleoptera). Opinion 1772
METOPIASINI Raffray 1904, Annales de la Société Entomologique de France, 73: 106 (type genus: Metopias Gory 1832), spelling emended from METOPIINI by the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name
Metopias Gory 1832 is METOPIAS- (Insecta, Coleoptera). Opinion 1772
METOPIINAE Foerster [1869], Verhandlungen des Naturhistorischen Vereines der Preussischen Rheinlande und Westphalens, 25: 142 (type genus: Metopius Panzer 1806) (Insecta, Hymenoptera). Opinion 1772
METOPIINI Raffray 1904, Annales de la Société Entomologique de France, 73: 106 (an incorrect original spelling of METOPIASINI, spelling emended under the plenary power) (Insecta, Coleoptera). Opinion 1772
METOPIINI Townsend 1908, Smithsonian Miscellaneous Collections, 51(2): 64, spelling emended to METOPIAINI following the ruling under the plenary power that for the purposes of Article 29 of the Code the stem of the generic name Metopia Meigen 1803 is METOPIA- (Insecta, Diptera). Opinion 1772
Metopius Panzer 1806, Kritische Revision der Insektenfauna Deutschlands, vol. 2, p. 78 (gender: masculine) (type species, by subsequent designation by Viereck 1912, Proceedings of the Entomological Society of Washington, 14: 176: Sphex vespoides Scopoli 1763) (Insecta, Hymenoptera). Opinion 1772
Metopocarcinus Stimpson 1860, Ann. Lyceum nat. Hist. New York, 7: 216 (gender: masculine) (type species, by monotypy: Metopocarcinus truncatus Stimpson 1860, Ann. Lyceum nat. Hist. New York, 7: 216) (Crustacea, Decapoda). Opinion 85, Direction 37
Metridia Boeck 1865, Forh. Videnskabs-Selsk. Christiania for 1864: 237 (gender: feminine) (type species, by designation by Sars 1902 (An account of the Crustacea of Norway, 4: 113): Metridia armata Boeck 1865, Forh. Videnskabs-Selsk. Christiania for 1864: 238, valid name: Calanus longus Lubbock 1854) (Crustacea, Copepoda). Opinion 1269
METRIDIIDAE Carlgren 1893, K. svensk. Vetensk.-Akad. Handl., 25(10): 101 (type genus: Metridium Blainville 1824) (Anthozoa). Opinion 1269
METRIDIIDAE Sars 1902, An account of the Crustacea of Norway, 4, parts IX and X: 110 (type genus: Metridia Boeck 1865) (ruled under the plenary power to be an incorrect original spelling for METRIDINIDAE Sars 1902). Opinion 1269
METRIDINIDAE Sars 1902, An account of the Crustacea of Norway, 4, parts IX and X: 110 (type genus: Metridia Boeck 1865) (Crustacea, Copepoda). Opinion 1269
Metridium Blainville 1824, Dictionnaire des Sciences Naturelles, 30 (Mell-Mez), F.G. Levrault, ed. Paris: 470 (gender: neuter) (type species, by monotypy: Actinia dianthus Ellis 1768, Phil. Trans. roy. Soc. London, 57: 436, pl. 19, fig. 8, valid name: Priapus senilis Linnaeus 1761) (Anthozoa). Opinion 1269
Metrioptera Wesmaël 1838, Bulletin de l’Académie Royale des Sciences et des belles-lettres de Bruxelles, 5: 592 (gender: feminine) (type species, by monotypy: Gryllus brachypterus Linnaeus 1761) (Insecta, Orthoptera). Opinion 2075
Metromenus Sharp 1884, Entomologist’s Monthly Magazine, 20: 217 (gender: masculine), ruled under the plenary power that all previous type fixations are set aside before the subsequent designation of Dyscolus palmae Blackburn 1877 by Lorenz 1998, Nomina Carabidarum, a directory of the scientific names of ground beetles, p. 116 (Insecta, Coleoptera). Opinion 2140
meunieri Heie 1969 [originally in Schizoneura], Bull. zool. Nomencl., 25: 222 (Insecta, Hemiptera). Opinion 1162
mexicanus Lamarck 1801 [originally in Coccus] (Hemiptera). ICZN 2019: Opinion 2443
mexicanus Peters 1861 [originally in Diplocentrus], Monatsberichte der Königlichen Preussischen Akademie der Wissenschaften zu Berlin, 1861: 512, as defined by the holotype (female specimen no. ZMB 74 in the Zoologisches Museum, Humboldt-Universität zu Berlin) confirmed by the Commission to be the namebearing type (specific name of the type species of Diplocentrus Peters 1861) (Arachnida, Scorpiones). Opinion 1847
mexicanus Shaw 1798 [originally in Gyrinus], Nat. Misc., 9: 343, 344, ruled under the plenary power not to be given priority over Salamandra tigrina Green 1825 by those who consider that both names apply to the same species (Amphibia). Opinion 649, Opinion 1025
mexicanus Poinar & Brown 2004 [originally in Phrynus] (Arachnida, Amblypygi, PHRYNIDAE): specific name not conserved. ICZN 2020: Opinion 2453 (Case 3687)
meyerlaei Fabricius 1801 [originally in Curculio], Systema eleutheratorum secundum ordines, genera, species, vol. 2. Bibliopoli. Academici Novi, Kiliae, p. 521, as defined by the lectotype (one of two syntypes from the Fabrician Collection housed in the University Zoological Museum) designated by Alonso-Zarazaga 2010 (BZN 67: 293) (Insecta, Coleoptera). Opinion 2300