International Commission on Zoological Nomenclature

ICZN Opinions & Cases

Opinions 401–500

ICZN 1956: Opinion 401 (Case 78) Suppression under the Plenary Powers of the generic name Colymbus Linnaeus, 1758, and addition to the Official List of Generic Names in Zoology of the generic names Gavia Forster, 1788, and Podiceps Latham, 1787 (class Aves). Opinions and Declarations rendered by the ICZN, 13(1): 1-64. 1956 http://biostor.org/reference/146337  http://biodiversitylibrary.org/page/34610592 

ICZN 1956: Opinion 402 (Case 678, 834) Addition to the Official Index of Rejected and Invalid Specific Names in Zoology of names given to two Asiatic Woodpeckers (class Aves). Opinions and Declarations rendered by the ICZN, 13(3): 65-74. 1956 http://biostor.org/reference/146338  http://biodiversitylibrary.org/page/34610656 

ICZN 1956: Opinion 403 (Case 496) Addition to the Official List of Specific Names in Zoology of the names of two Siberian Larks (class Aves). Opinions and Declarations rendered by the ICZN, 13(4): 75-86. 1956 http://biostor.org/reference/146479  http://biodiversitylibrary.org/page/34610666 

ICZN 1956: Opinion 404 (Case 492) Validation under the Plenary Powers of Pyrrhocorax [Tunstall], 1771, as the generic name for the Chough (class Aves). Opinions and Declarations rendered by the ICZN, 13(5): 87-106. 1956 http://biostor.org/reference/146339  http://biodiversitylibrary.org/page/34610678 

ICZN 1956: Opinion 405 (Case 493) Use of the Plenary Powers to secure that the specific name philomelos Brehm, 1831, as published in the combination Tardus philomelos shall be the oldest available specific name for the Song Thrush (class Aves). Opinions and Declarations rendered by the ICZN, 13(6): 107-118. 1956 http://biostor.org/reference/146340  http://biodiversitylibrary.org/page/34610698 

ICZN 1956: Opinion 406 (Case 525) Use of the Plenary Powers to secure that the specific name nigricollis Brehm, 1831, as published in the combination Podiceps nigricollis shall be the oldest available specific name for the Black-Necked Grebe (class Aves). Opinions and Declarations rendered by the ICZN, 13(7): 119-130. 1956 http://biostor.org/reference/146341  http://biodiversitylibrary.org/page/34610710 

ICZN 1956: Opinion 407 (Case 526) Suppression under the Plenary Powers of four specific names for birds published by Anton Heinrich Lichtenstein in 1793 (class Aves). Opinions and Declarations rendered by the ICZN, 13(8): 131-146. 1956 http://biostor.org/reference/146342  http://biodiversitylibrary.org/page/34610722 

ICZN 1956: Opinion 408 (Case 527) Use of the Plenary Powers to secure that the specific name pyrrhulinus Swinhoe, 1876, as published in the combination Emberiza pyrrhulinus (class Aves) shall be the oldest available name for the species concerned. Opinions and Declarations rendered by the ICZN, 13(9): 147-156. 1956 http://biostor.org/reference/146343  http://biodiversitylibrary.org/page/34610738 

ICZN 1956: Opinion 409 (Case 454) Suppression under the Plenary Powers of seven specific names given by Gmelin (J.F.) in 1788 and 1789 to birds taken on Captain Cook's Last Expedition which were regarded as nomina dubia until 1950. Opinions and Declarations rendered by the ICZN, 13(10): 157-172. 1956 http://biostor.org/reference/146344  http://biodiversitylibrary.org/page/34610748 

ICZN 1956: Opinion 410 (Case 341, Case 494) Suppression under the Plenary Powers of three specific names proposed for birds by Forster (J.R.) in 1794 and of one such name proposed by Latham in 1790. Opinions and Declarations rendered by the ICZN, 13(11): 173-190. 1956 http://biostor.org/reference/146480  http://biodiversitylibrary.org/page/34610764 

ICZN 1956: Opinion 411 (Case 491) Emendation of the spelling of the specific names of the Short-Toed Lark and the Egyptian Vulture. Opinions and Declarations rendered by the ICZN, 13(12): 191-202. 1956 http://biostor.org/reference/146345  http://biodiversitylibrary.org/page/34610782 

ICZN 1956: Opinion 412 (Case 649, Case 502) Suppression under the Plenary Powers of new names proposed by Linnaeus in the pamphlet entitled A Catalogue of the birds, Beasts, fishes, Insects ... contained in Edwards's Natural History published in 1776. Opinions and Declarations rendered by the ICZN, 13(13): 203-232. 1956 http://biostor.org/reference/146346  http://biodiversitylibrary.org/page/34610794 

ICZN 1956: Opinion 413 (Case 633) Acceptance of the restricted locality for the nominate subspecies of the Ostrich specified by Stresemann (E.) in 1926 and determination of the name applicable to the Syrian Ostrich. Opinions and Declarations rendered by the ICZN, 13(14): 233-242. 1956 http://biostor.org/reference/146347  http://biodiversitylibrary.org/page/34610824 

ICZN 1956: Opinion 414 (Case 676) Use of the Plenary Powers to provide a valid foundation for the continued employment of the generic name Myiobius Darwin, 1839 (class Aves) in its accustomed sense. Opinions and Declarations rendered by the ICZN, 13(15): 243-254. 1956 http://biostor.org/reference/146348  http://biodiversitylibrary.org/page/34610834 

ICZN 1956: Opinion 415 (Case 686) Use of the Plenary Powers to provide a valid foundation for the continued employment of the specific name cyanea Hume, 1877, as published in the combination Muscitrea cyanea (class Aves). Opinions and Declarations rendered by the ICZN, 13(16): 255-264. 1956 http://biostor.org/reference/146349  http://biodiversitylibrary.org/page/34610846 

ICZN 1956: Opinion 416 (Case 687) Validation under the Plenary Powers of the specific name ferruginea Hodgson, 1845, as published in the combination Hemichelidon ferruginea (class Aves). Opinions and Declarations rendered by the ICZN, 13(17): 265-274. 1956 http://biostor.org/reference/146350  http://biodiversitylibrary.org/page/34610856 

ICZN 1956: Opinion 417 (["Case 153"] Case 177) Rejection for nomenclatural purposes of volume 3 (Zoologie) of the work by Lorenz Oken entitled Okens Lehrbuch der Naturgeschichte published in 1815-1816. Opinions and Declarations rendered by the ICZN, 14(1): 1-42. 1956 http://biostor.org/reference/100192  http://biodiversitylibrary.org/page/34677656 

ICZN 1956: Opinion 418 (Case 261) Validation under the Plenary Powers of the generic name Stentor Oken, 1815 (class Ciliophora). Opinions and Declarations rendered by the ICZN, 14(2): 43-68. 1956 http://biostor.org/reference/146351  http://biodiversitylibrary.org/page/34677736 

ICZN 1956: Opinion 419 (Case 461) Validation under the Plenary Powers of the names published by William Martin in 1809 in the work entitled Petrificata Derbiensia for eight species of the class Brachiopoda and for two species of the class Anthozoa and matters incidental thereto. Opinions and Declarations rendered by the ICZN, 14(3): 69-128. 1956 http://biostor.org/reference/146352  http://biodiversitylibrary.org/page/34677762 

ICZN 1956: Opinion 420 (Case 534) Addition to the Official List of Specific Names in Zoology of the specific names for eleven species of the class Brachiopoda and for two species of the class Cephalopoda originally published by Martin (W.) in 1809 in the nomenclatorially invalid work entitled Petrificata Derbiensia and now available as from the first subsequent date on which they were severally published in conditions satisfying the requirements of the Regles. Opinions and Declarations rendered by the ICZN, 14(4): 129-168. 1956 http://biostor.org/reference/146353  http://biodiversitylibrary.org/page/34677824 

ICZN 1956: Opinion 421 (Case 535) Designation under the Plenary Powers of a type species in harmony with accustomed usage for the genus Martinia McCoy, 1844 (class Brachiopoda). Opinions and Declarations rendered by the ICZN, 14(5): 169-180. 1956 http://biostor.org/reference/146354  http://biodiversitylibrary.org/page/34677864 

ICZN 1956: Opinion 422 (Case 631) Determination under the Plenary Powers of the species to which the specific name mammillatus Schlotheim, 1813, as published in the combination Ammonites mammillatus shall apply and designation under the same Powers of the foregoing species to be the type species of the genus Douvilleiceras de Grossouvre, 1893 (class Cephalopoda, order Ammonoidea). Opinions and Declarations rendered by the ICZN, 14(6): 181-196. 1956 http://biostor.org/reference/146355  http://biodiversitylibrary.org/page/34677876 

ICZN 1956: Opinion 423 (Case 601) Addition to the Official List of Generic Names in Zoology of the generic name Xantho [Leach], [1814] (class Crustacea, order Decapoda) and validation under the Plenary Powers of the family-group name Xanthinae Dana, 1851 Ubrarl. Opinions and Declarations rendered by the ICZN, 14(7): 197-214. 1956 http://biostor.org/reference/146356  http://biodiversitylibrary.org/page/34677892 

ICZN 1956: Opinion 424 (Case 133, Case 776) Validation under the Plenary Powers of the specific name rufa Linnaeus, 1761, as published in the combination Formica rufa and designation under the same Powers of the species so named to be the type species of the genus Formica Linnaeus, 1758 (class Insecta, order Hymenoptera). Opinions and Declarations rendered by the ICZN, 14(8): 215-242. 1956 http://biostor.org/reference/146357  http://biodiversitylibrary.org/page/34677910 

ICZN 1956: Opinion 425 (Case 594) Addition to the Official Index of Rejected and Invalid Generic Names in Zoology of the name Palmatotriton Smith (H. M.), 1945 (class Amphibia). Opinions and Declarations rendered by the ICZN, 14(9): 243-256. 1956 http://biostor.org/reference/146358 http://biodiversitylibrary.org/page/34677938 

ICZN 1956: Opinion 426 (Case 421) Designation under the Plenary Powers of type species in harmony with accustomed usage for the genera Pictonia Bayle, 1878, and Rasenia Salfeld, 1913 (class Cephalopoda, order Ammonoidea) (Jurassic). Opinions and Declarations rendered by the ICZN, 14(10): 257-280. 1956 http://biostor.org/reference/146359  http://biodiversitylibrary.org/page/34677952 

ICZN 1956: Opinion 427 (Case 688, Case 832) Rejection for nomenclatorial purposes of the work by Renier (S. A.) known as Tavole per servire alle classifi cazione e connescenza degli animali and commonly attributed to the year 1807 and addition to the Official Indexes of Rejected and invalid names in Zoology of certain names first used in the foregoing work or in two Earlier works by the same author commonly known as the Tavola alfabetica and the Prospetto respectively and both commonly attributed to the year 1804. Opinions and Declarations rendered by the ICZN, 14(11): 281-310. 1956 http://biostor.org/reference/146360  http://biodiversitylibrary.org/page/34677976 

ICZN 1956: Opinion 428 (Case 703) Suppression under the Plenary Powers of the specific name royerianus d'Orbigny, 1841, as published in the combination Ammonites royerianus and designation under the same Powers of a type species in harmony with accustomed practice for the genus Cheloniceras, Hyatt, 1903 (class Cephalopoda, order Ammonoidea). Opinions and Declarations rendered by the ICZN, 14(12): 311-322. 1956 http://biostor.org/reference/146361  http://biodiversitylibrary.org/page/34678006 

ICZN 1956: Opinion 429 (Case 714) Direction under the Plenary Powers limiting to suppression for the purposes of the Law of priority the suppression of the generic name Argus Bohadsch, 1761 (class Gastropoda) prescribed by the ruling given in Opinion 185 thereby securing that the generic name Argus Scopoli, 1763 (class Insecta, order Lepidoptera) shall remain invalid under the Law of homonymy. Opinions and Declarations rendered by the ICZN, 14(13): 323-338. 1956 http://biostor.org/reference/146362  http://biodiversitylibrary.org/page/34678018 

ICZN 1956: Opinion 430 (Case 823) Use of the Plenary Powers for the purpose of making the specific name minimus Miller (J. S.), 1826, as published in the combination Belemnites minimus, the oldest available name for the species concerned (class Cephalopoda, order Dibranchia). Opinions and Declarations rendered by the ICZN, 14(14): 339-346. 1956 http://biostor.org/reference/146363  http://biodiversitylibrary.org/page/34678034 

 ICZN 1956: Opinion 431 (Case 214) Use of the Plenary Powers to secure that the generic name Helicella Ferussac, 1821 (class Gastropoda) shall be available for use in its accustomed sense. Opinions and Declarations rendered by the ICZN, 14(15): 347-372. 1956 http://biostor.org/reference/146364  http://biodiversitylibrary.org/page/34678042 

ICZN 1956: Opinion 432 (Case 224) Rejection, as an unpublished proof, of the paper by Binney (W.G.) dated "9th December 1863" and entitled Synopsis of the species of Air-breathing Mollusks of North America (confirmation of ruling given in Opinion 87) and validation under the Plenary Powers of the generic name Carinifex Binney, 1865 (class Gastropoda). Opinions and Declarations rendered by the ICZN, 14(16): 373-392. 1956 http://biostor.org/reference/146365  http://biodiversitylibrary.org/page/34678068 

ICZN 1956: Opinion 433 (Case 829) Use of the Plenary Powers to secure that the generic name Discias Rathbun, 1902 (class Crustacea, order Decapoda) shall be the oldest available name for the genus concerned. Opinions and Declarations rendered by the ICZN, 14(17): 393-402. 1956 http://biostor.org/reference/118322  http://biodiversitylibrary.org/page/34678088 

ICZN  1956: Opinion 434 (Case 830) Use of the Plenary Powers to secure that the names Upogebia [Leach], [1814], and Processa Leach, [1815], shall be the oldest available names for the genera in question and that the family-group names based upon those generic names shall be the oldest available names for the family-group taxa concerned. Opinions and Declarations rendered by the ICZN, 14(18): 403-424. 1956 http://biostor.org/reference/146366  http://biodiversitylibrary.org/page/34678098 

ICZN 1956: Opinion 435 (Case 199, Case 303) Suppression under the Plenary Powers of the generic name Achorutes Templeton, 1835, and designation under the same Powers of type species in harmony with current usage for the genera Hypogastrura Bourlet, 1839, and Neanura Macgillivray, 1893 (class Insecta, order Collembola). Opinions and Declarations rendered by the ICZN, 14(21): 425-458. 1956 http://biostor.org/reference/146367  http://biodiversitylibrary.org/page/34678120 

ICZN 1957: Opinion 436 (Case 832, Case 1091) Addition to the Official Indexes of Rejected and Invalid Names in Zoology of certain names attributed to Renier (S.A.) as from 1804 and 1807 respectively (Opinion supplementary to Opinion 427). Opinions and Declarations rendered by the ICZN, 15(1): 1-24. 1957 http://biostor.org/reference/146368  http://biodiversitylibrary.org/page/34656354 

ICZN 1957: Opinion 437 (Case 670) Validation under the Plenary Powers of the generic name Pachyceras Bayle, 1878 (class Cephalopoda, order Ammonoidea) by the suppression of the name Pachyceras Ratzeburg, 1844 (class Insecta, order Hymenoptera). Opinions and Declarations rendered by the ICZN, 15(2): 25-40. 1957 http://biostor.org/reference/146369  http://biodiversitylibrary.org/page/34656378 

ICZN 1957: Opinion 438 (Case 863) Validation under the Plenary Powers of the generic name Rhinopteraspis Jaekel, 1919 (class Ostracodermi). Opinions and Declarations rendered by the ICZN, 15(3): 41-50. 1957 http://biostor.org/reference/146370  http://biodiversitylibrary.org/page/34656394 

ICZN 1957: Opinion 439 (Case 199, Case 304) Designation under the Plenary Powers of a type species in harmony with accustomed usage for the genus Anurophorus Nicolet, [1842] (class Insecta, order Collembola). Opinions and Declarations rendered by the ICZN, 15(4): 51-66. 1957 http://biostor.org/reference/146371  http://biodiversitylibrary.org/page/34656404 

ICZN 1957: Opinion 440 (Case 199, 485) Validation under the Plenary Powers of the generic name Entomobrya Rondani, 1861 (class Insecta, order Collembola). Opinions and Declarations rendered by the ICZN, 15(5): 67-82. 1957 http://biostor.org/reference/146372  http://biodiversitylibrary.org/page/34656420 

 ICZN 1957: Opinion 441 (Case 710) Validation under the Plenary Powers of the names for five genera in the order Diptera (class Insecta) published in 1762 by Geoffroy (E.L.) in the work entitled Histoire abrégée des Insectes Qui Se Trouvent Aux Environs de Paris (Opinion supplementary to Opinion 228). Opinions and Declarations rendered by the ICZN, 15(6): 83-120. 1957 http://biostor.org/reference/146373  http://biodiversitylibrary.org/page/34656436 

ICZN 1957: Opinion 442 (Case 1086) Validation under the Plenary Powers of the generic name Stratiomys Geoffroy, 1762 (class Insecta, order Diptera). Opinions and Declarations rendered by the ICZN, 15(7): 121-162. 1957 http://biostor.org/reference/146374  http://biodiversitylibrary.org/page/34656474 

ICZN 1957: Opinion 443 (Case 550) Designation under the Plenary Powers of a type species in harmony with accustomed usage for the genus Monticulipora d'Orbigny, October 1849 (class Bryozoa) (Ordovician). Opinions and Declarations rendered by the ICZN, 15(8): 163-174. 1957 http://biostor.org/reference/146375  http://biodiversitylibrary.org/page/34656516 

ICZN 1957: Opinion 444 (Case 876) Validation under the Plenary Powers of the specific name obscura Berezowsky & Bianchi, 1891, as published in the combination Larvivora obscura (class Aves). Opinions and Declarations rendered by the ICZN, 15(9): 175-190. 1957 http://biostor.org/reference/146376  http://biodiversitylibrary.org/page/34656528 

ICZN 1957: Opinion 445 (Case 721) Rejection for nomenclatorial purposes of the work by Eberhard (J.P.) entitled Versuch eines neuen Entwurfs der Thiergeschichte published in 1768. Opinions and Declarations rendered by the ICZN, 15(10): 191-198. 1957 http://biostor.org/reference/146377  http://biodiversitylibrary.org/page/34656544 

ICZN 1957: Opinion 446 (Case 430) Addition to the Official List of Generic Names in Zoology of the generic name Phorodon Passerini, 1860 (class Insecta, order Hemiptera). Opinions and Declarations rendered by the ICZN, 15: 199-210. 1957 http://biostor.org/reference/73812  http://biodiversitylibrary.org/page/34656552 

ICZN 1957: Opinion 447 (Case 256) Rejection for nomenclatorial purposes of the original edition published at Philadelphia in 1791 and of the editions published in London and Dublin respectively in 1792 of the work by William Bartram entitled Travels through North and South Carolina, Georgia, East and West Florida, the Cherokee Country, the extensive territories of the Muscogulges or Creek Confederacy, and the Country of the Chactaws, as being a work in which the author did not apply the principles of binominal nomenclature. Opinions and Declarations rendered by the ICZN, 15(12): 211-224. 1957 http://biostor.org/reference/65855  http://biodiversitylibrary.org/page/34656564 

ICZN 1957: Opinion 448 (Case 817) Suppression under the Plenary Powers of the name bei Ridgway, 1874, as published in the combination Eremophila alpestris var. bei, a name given to the Astrakan Horned Lark as the result of the misreading of a museum label (class Aves). Opinions and Declarations rendered by the ICZN, 15(13): 225-234. 1957 http://biostor.org/reference/146378  http://biodiversitylibrary.org/page/34656578 

ICZN 1957: Opinion 449 (Case 868) Determination of the species to be accepted as the type species of the nominal genus Laqueus Dall, 1870 (class Brachiopoda). Opinions and Declarations rendered by the ICZN, 15(14): 235-250. 1957 http://biostor.org/reference/146379  http://biodiversitylibrary.org/page/34656588 

ICZN 1957: Opinion 450 ([Case 288], [Case 331], Case 462) Suppression under the Plenary Powers of the generic name Phalaena Linnaeus, 1758, and validation as of subgeneric status (a) as from 1758, of the terms Bombyx, Noctua, Geometra, Tortrix, Pyralis, Tinea, and Alucita as used by Linnaeus for groups of species of the genus Phalaena and (B) as from 1767 of the term Attacus similarly published by Linnaeus and matters incidental thereto (class Insecta, order Lepidoptera). Opinions and Declarations rendered by the ICZN, 15(15): 251-328. 1957 http://biostor.org/reference/146380  http://biodiversitylibrary.org/page/34656604 

ICZN 1957: Opinion 451 (Case 487) Use of the Plenary Powers to secure that the specific name dingo Meyer, 1793, as published in the combination Canis dingo, shall be the oldest available name for the Dingo of Australia (class Mammalia). Opinions and Declarations rendered by the ICZN, 15(17): 329-338. 1957 http://biostor.org/reference/146381  http://biodiversitylibrary.org/page/34656682 

ICZN 1957: Opinion 452 (Case 898) Addition to the Official List of Specific Names in Zoology of the specific name australis Kerr, 1792, as published in the combination Canis australis, as the oldest available name for the Falkland Islands Wolf (class Mammalia). Opinions and Declarations rendered by the ICZN, 15(18): 339-346. 1957 http://biostor.org/reference/146382  http://biodiversitylibrary.org/page/34656692 

ICZN 1957: Opinion 453 (Case 759) Validation under the Plenary Powers of the generic name Bombina Oken, 1816 (class Amphibia, order Anura). Opinions and Declarations rendered by the ICZN, 15(19): 347-356. 1957 http://biostor.org/reference/146383  http://biodiversitylibrary.org/page/34656700 

ICZN 1957: Opinion 454 (Case 843) Designation under the Plenary Powers of a type species in harmony with accustomed usage for Scolopendra Linnaeus, 1758 (class Chilopoda). Opinions and Declarations rendered by the ICZN, 15(20): 357-378. 1957 http://biostor.org/reference/146384  http://biodiversitylibrary.org/page/34656710 

ICZN 1957: Opinion 455 (Case 811) Validation under the Plenary Powers (a) of the emendation to Sphenodon of the generic name Sphaenodon Gray (J. E.), 1831, and (b) of the family-group name Sphenodontidae Cope, 1870 (class Reptilia). Opinions and Declarations rendered by the ICZN, 15: 379-392. 1957 http://biostor.org/reference/65858  http://biodiversitylibrary.org/page/34656732 

ICZN 1957: Opinion 456 (Case 634) Rejection of the work by Thomas Martyn published in 1784 with the title The Universal Conchologist as a work which does not comply with the requirements of Article 25 of the Règies and which therefore possesses no status in zoological nomenclature and rejection also of a proposal that the foregoing work should be validated under the Plenary Powers. Opinions and Declarations rendered by the ICZN, 15(22): 393-418. 1957 http://biostor.org/reference/146385  http://biodiversitylibrary.org/page/34656746 

ICZN 1957: Opinion 457 (Case 709) Validation under the Plenary Powers of the generic name Hemiprocne Nitzsch, 1829 (class Aves). Opinions and Declarations rendered by the ICZN, 15(23): 419-432. 1957 http://biostor.org/reference/146386  http://biodiversitylibrary.org/page/34656772 

ICZN 1957: Opinion 458 (Case 792) Determination of the interpretation of the nominal species Eschara vulgaris Moll, 1803 (class Ectoprocta). Opinions and Declarations rendered by the ICZN, 15(24): 433-442. 1957 http://biostor.org/reference/146481  http://biodiversitylibrary.org/page/34656786 

ICZN 1957: Opinion 459 (Case 324) Validation under the Plenary Powers of the generic name Fistulipora McCoy, 1849 (class Bryozoa). Opinions and Declarations rendered by the ICZN, 15(25): 443-454. 1957 http://biostor.org/reference/146387  http://biodiversitylibrary.org/page/34656796 

ICZN 1957: Opinion 460 (Case 481) Validation under the Plenary Powers of the generic name Muntiacus Rafinesque, 1815, and designation for the genus so named of a type species in harmony with accustomed usage (class Mammalia). Opinions and Declarations rendered by the ICZN, 15(26): 455-474. 1957 http://biostor.org/reference/146388  http://biodiversitylibrary.org/page/34656808 

ICZN 1957: Opinion 461 (Case 905) Addition to the Official List of Generic Names in Zoology of the generic name Cubiceps Lowe (R. T.), 1843, a name published conditionally for a species described simultaneously in the genus Seriola Cuvier (G.L.C.F. D.), [1816] (class Pisces) (Opinion supplementary to Declaration 30). Opinions and Declarations rendered by the ICZN, 15(28): 475-484. 1957 http://biostor.org/reference/146389  http://biodiversitylibrary.org/page/34656828 

ICZN 1957: Opinion 462 (Case 513) Addition to the Official List of Generic Names in Zoology of the generic name Mormoops Leach, 1820 (class Mammalia). Opinions and Declarations rendered by the ICZN, 16(1): 1-12. 1957 http://biostor.org/reference/65852  http://biodiversitylibrary.org/page/34656956 

ICZN 1957: Opinion 463 (Case 443) Designation under the Plenary Powers of a type species in harmony with accustomed usage for the genus Oxypoda Mannerheim, 1831 (class Insecta, order Coleoptera). Opinions and Declarations rendered by the ICZN, 16(2): 13-24. 1957 http://biostor.org/reference/146390  http://biodiversitylibrary.org/page/34656968 

ICZN 1957: Opinion 464 (Case 909) Action under the Plenary Powers to secure (a) that the specific name gambianus Ogilby, 1835, as published in the combination Sciurus gambianus shall be the oldest available name for the Sun Squirrel and (b) that the generic name Heliosciurus Trouessart, 1880, shall be the oldest available generic name for that species (class Mammalia). Opinions and Declarations rendered by the ICZN, 16(3): 25-42. 1957 http://biostor.org/reference/65853  http://biodiversitylibrary.org/page/34656980 

ICZN 1957: Opinion 465 (Case 910) Validation under the Plenary Powers of the specific name silvestris Schreber [1777] as published in the combination Felis (catus) silvestris, for the European Wild Cat (class Mammalia). Opinions and Declarations rendered by the ICZN, 16(4): 43-52. 1957 http://biostor.org/reference/65850  http://biodiversitylibrary.org/page/34656998 

ICZN 1957: Opinion 466 (Case 756) Validation under the Plenary Powers of the generic name Phacochoerus Cuvier (F.), 1826, as the generic name for the Wart Hog (class Mammalia). Opinions and Declarations rendered by the ICZN, 16(5): 53-72. 1957 http://biostor.org/reference/146391  http://biodiversitylibrary.org/page/34657008 

ICZN 1957: Opinion 467 (Case 614) Validation under the Plenary Powers of the generic name Odobenus Brisson, 1762, as the generic name for the Walrus (class Mammalia). Opinions and Declarations rendered by the ICZN, 16(6): 73-88. 1957 http://biostor.org/reference/65847  http://biodiversitylibrary.org/page/34657028 

ICZN 1957: Opinion 468 (Case 875) Addition of the ordinal name Ammonoidea Zittel, 1884 to the Official List of Names in the Order-Class-Group in Zoology, with Arietites Waagen 1869, as type genus. Opinions and Declarations rendered by the ICZN, 16(7): 89-96.

ICZN 1957: Opinion 469 (Case 307)  Rejection (a) of the generic name Jumala Friele, 1882, as a name calculated to give offence on religious Grounds, and (b) of the name Beringius Dall, 1879, as not having been duly published (class Gastropoda). Opinions and Declarations rendered by the ICZN, 16(8): 97-128. 1957 http://biostor.org/reference/67130  http://biodiversitylibrary.org/page/34657052 

ICZN 1957: Opinion 470 (Case 622) Addition to the Official List of Generic Names in Zoology of the names of one hundred and two genera of Caridea (class Crustacea, order Decapoda) and the use of the Plenary Powers for various purposes in connection therewith. Opinions and Declarations rendered by the ICZN, 16(9): 129-202. 1957 http://biostor.org/reference/98760  http://biodiversitylibrary.org/page/34657084 

ICZN 1957: Opinion 471 (Case 884) Validation under the Plenary Powers of the family group name Mayaitidae Spath (L. F.), 1928 (class Cephalopoda, order Ammonoidea). Opinions and Declarations rendered by the ICZN, 16(12): 203-212. 1957 http://biostor.org/reference/146392  http://biodiversitylibrary.org/page/34657158 

ICZN 1957: Opinion 472 (Case 859) Addition to the Ojficial List of Generic Names in Zoology of the generic name Pagurus Fabricius, 1775, with Cancer bernhardus Linnaeus, 1758, as type species (class Crustacea, order Decapoda). Opinions and Declarations rendered by the ICZN, 16(13): 213-276. 1957 http://biostor.org/reference/118011  http://biodiversitylibrary.org/page/34657168 

ICZN 1957: Opinion 473 (Case 629) Determination of the species to be accepted as the type species of the genus Inoceramus Sowerby (J.), 1814 (class Pelecypoda) and addition of that name to the Official List of Generic Names in Zoology. Opinions and Declarations rendered by the ICZN, 16(15): 277-296. 1957 http://biostor.org/reference/146393  http://biodiversitylibrary.org/page/34657232 

ICZN 1957: Opinion 474 (Case 930) Determination of the dates to be assigned for the purposes of the Law of priority to the names published in Dru Drury's Illustrations of Natural History in the period 1770-1782. Opinions and Declarations rendered by the ICZN, 16(16): 297-306. 1957 http://biostor.org/reference/146394  http://biodiversitylibrary.org/page/34657252 

ICZN 1957: Opinion 475 (Case 452) Validation under Tlie Plenary Powers of the generic name Bithynia Leach, 1818 (class Gastropoda) and matters associated therewith. Opinions and Declarations rendered by the ICZN, 16(17): 307-330. 1957 http://biostor.org/reference/146395  http://biodiversitylibrary.org/page/34657262 

ICZN 1957: Opinion 476 (Case 757) Validation under the Plenary Powers of the generic name Phillipsinella Novak, 1886 (class Trilobita). Opinions and Declarations rendered by the ICZN, 16(18): 331-342. 1957 http://biostor.org/reference/146396  http://biodiversitylibrary.org/page/34657286 

ICZN 1957: Opinion 477 (Case 1095) Validation under the Plenary Powers of the generic name Cerebratulus [Renier], [1804], and of the specific name marginatus [Renier], [1804], as used by the foregoing author in the combination Cerebratulus marginatus (class Nemertea) (Opinion supplementary to Opinion 427). Opinions and Declarations rendered by the ICZN, 16(20): 343-352. 1957 http://biostor.org/reference/146397  http://biodiversitylibrary.org/page/34657298 

ICZN 1957: Opinion 478 (Case 1096) Validation under the Plenary Powers of the generic name Polycitor [Renier], [1804], and of the specific name crystallinus [Renier], [1804], as used by the foregoing author in the combination Polycitor crystallinus (class Urochorda) (Opinion supplementary to Opinion 421). Opinions and Declarations rendered by the ICZN, 16(21): 353-364. 1957 http://biostor.org/reference/146398  http://biodiversitylibrary.org/page/34657308 

ICZN 1957: Opinion 479 (Case 1053) Validation under the Plenary Powers of specific names for nine species of the class Gastropoda occurring in the New Zealand area as published by Martyn (T.) in 1784 in the work entitled the Universal Conchologist (Opinion supplementary to Opinion 456). Opinions and Declarations rendered by the ICZN, 16(22): 365-416. 1957 http://biostor.org/reference/146399  http://biodiversitylibrary.org/page/34657320 

ICZN 1957: Opinion 480 (Case 782) Suppression under the Plenary Powers of the specific and subspecific names of birds published in the so-called "horniman pamphlet" dated "1940" and matters incidental thereto. Opinions and Declarations rendered by the ICZN, 16(23): 417-454. 1957 http://biostor.org/reference/146400  http://biodiversitylibrary.org/page/34657372 

ICZN  1957:Opinion 481 (Case 755) Emendation under the Plenary Powers to Lernaeocera of the generic name Lerneocera and designation under the same Powers of a type species in harmony with accustomed usage for the genus so named (class Crustacea, order Copepoda). Opinions and Declarations rendered by the ICZN, 17(1): 1-14. 1957 http://biostor.org/reference/146401  http://biodiversitylibrary.org/page/34651536 

ICZN 1957: Opinion 482 (Case 798) Rejection of a proposal for the suppression under the Plenary Powers of the generic name Caenisites Buckman, 1925 (class Cephalopoda, order Ammonoidea). Opinions and Declarations rendered by the ICZN, 17(3): 15-40. 1957 http://biostor.org/reference/146402  http://biodiversitylibrary.org/page/34651550 

ICZN 1957: Opinion 483 (Case 889) Determination of the specimen to be accepted as the lectotype of the nominal species Megathymus aryxna Dyar, 1905 (class Insecta, order Lepidoptera) and matters incidental thereto. Opinions and Declarations rendered by the ICZN, 17(5): 41-72. 1957 http://biostor.org/reference/144166  http://biodiversitylibrary.org/page/34651576 

ICZN 1957: Opinion 484 (Case 870) Addition to the Official List of Generic Names in Zoology and to the Official List of Family-group Names in Zoology respectively of the generic name Chama Linnaeus, 1758, and the family-group name Chamidae (correction of Camacea) Blainville, 1825 (class Pelecypoda). Opinions and Declarations rendered by the ICZN, 17: 73-86. 1957 http://biostor.org/reference/146403  http://biodiversitylibrary.org/page/34651608 

ICZN 1957: Opinion 485 (Case 1082) Determination of the relative priority to be assigned to the names Cheirodon axelrodi Schultz (L. P.) and Hyphessobrycon cardinalis Myers (G. S.) & Weitzman (S. H.) (class Pisces), both being names published in February 1956. Opinions and Declarations rendered by the ICZN, 17(7): 87-104. 1957 http://biostor.org/reference/146404  http://biodiversitylibrary.org/page/34651622 

ICZN 1958: Resolution supplementary to Opinion 485 (Case 1320) Opinions and Declarations rendered by the ICZN, 17(23): 104A-104J.

ICZN 1957: Opinion 486 (Case 438) Validation under the Plenary Powers as from Morris (1845) of the specific name brachythaerus, as published in the combination Productus brachythaerus and designation under the same Powers of the species so named to be the type species of the genus Terrakea Booker, 1930 (class Brachiopoda). Opinions and Declarations rendered by the ICZN, 17(8): 105-118. 1957 http://biostor.org/reference/146405  http://biodiversitylibrary.org/page/34651650 

ICZN 1957: Opinion 487 (Case 923) Validation under the Plenary Powers of the generic names Gempylus Cuvier, 1829 (class Pisces) and Acinaces Gerstaecker, 1858 (class Insecta, order Coleoptera). Opinions and Declarations rendered by the ICZN, 17(9): 119-142. 1957 http://biostor.org/reference/146406  http://biodiversitylibrary.org/page/34651664 

ICZN 1957: Opinion 488 (Case 298) Determination of the status under Rule (g) in Article 30 of the Règles of the action taken by Curtis (J.) in the Second Edition of the work entitled a Guide to an Arrangement of British Insects published in 1837. Opinions and Declarations rendered by the ICZN, 17(10): 143-154. 1957 http://biostor.org/reference/146407  http://biodiversitylibrary.org/page/34651688 

ICZN 1957: Opinion 489 (Case 383) Validation under the Plenary Powers of the generic name Turbinella Lamarck, 1799 (class Gastropoda), as the name for the Sacred Chank Shell of India. Opinions and Declarations rendered by the ICZN, 17(11): 155-178. 1957 http://biostor.org/reference/146484  http://biodiversitylibrary.org/page/34651700 

ICZN 1957: Opinion 490 (Case 824) Action under the Plenary Powers to preserve for use in its accustomed sense the generic name Elaphe Fitzinger, 1833 (class Reptilia). Opinions and Declarations rendered by the ICZN, 17(12): 179-196. 1957 http://biostor.org/reference/146412  http://biodiversitylibrary.org/page/34651724 

ICZN 1957: Opinion 491 (Case 846) Interpretation under the Plenary Powers of the nominal species Palaeopsylla daea Dampf, 1910 (class Insecta, order Siphonaptera) for the purpose of validating accustomed usage. Opinions and Declarations rendered by the ICZN, 17(13): 197-208. 1957 http://biostor.org/reference/146483  http://biodiversitylibrary.org/page/34651742 

ICZN 1957: Opinion 492 (Case 827) Suppression under the Plenary Powers of the family group name Aucellidae Lanusen, 1897, and rejection of an application for use of the same Powers to validate the generic name Aucella Keyserling, 1846, by suppressing the generic name Buchia Rouillier, 1845 (class Lamellibranchiata). Opinions and Declarations rendered by the ICZN, 17(14): 209-254. 1957 http://biostor.org/reference/146413  http://biodiversitylibrary.org/page/34651754  

ICZN 1957: Opinion 493 (Case 1027) Designation under the Plenary Powers of a type species in harmony with established usage for the genus Torquesia Douville, 1929 (class Gastropoda). Opinions and Declarations rendered by the ICZN, 17(15): 255-264. 1957 http://biostor.org/reference/146414  http://biodiversitylibrary.org/page/34651800 

ICZN 1957: Opinion 494 (Case 332) Validation under the Plenary Powers of the generic name Diloba Boisduval, 1840, and designation under the same Powers of a type species in harmony with established usage for the genus Episema Ochsenheimer, 1816 (class Insecta, order Lepidoptera). Opinions and Declarations rendered by the ICZN, 17(16): 265-286. 1957 http://biostor.org/reference/146415  http://biodiversitylibrary.org/page/34651810 

ICZN 1957: Opinion 495 (Case 451) Designation, under the Plenary Powers of a type species in harmony with accustomed usage for the nominal genus Unio Philipsson, 1788 (class Pelecypoda) and validation under the same Powers of the family-group name Margaritiferidae Haas, 1940. Opinions and Declarations rendered by the ICZN, 17(17): 287-322. 1957 http://biostor.org/reference/146416  http://biodiversitylibrary.org/page/34651832 

ICZN 1957: Opinion 496 (Case 623) Use of the Plenary Powers to secure the continued use in their accustomed sense of the generic names Olenus Dalman, [1827], and Paradoxides Brongniart, 1822 (class Trilobita). Opinions and Declarations rendered by the ICZN, 17 18: 323-348. 1957 http://biostor.org/reference/146417  http://biodiversitylibrary.org/page/34651868 

ICZN 1957: Opinion 497 (Case 704) Suppression under the Plenary Powers of the specific name munda Kuhl, 1820, as published in the combination Proc.[ellaria] munda and on the same occasion in the combination Nectris munda (class Aves). Opinions and Declarations rendered by the ICZN, 17(19): 349-360. 1957 http://biostor.org/reference/146418  http://biodiversitylibrary.org/page/34651894 

ICZN 1957: Opinion 498 (Case 998) Validation under the Plenary Powers of the specific name tuberculatus, as published by Hall (J. W.) in 1859 in the combination Acidaspis tuberculatus, and use of the same Powers to provide an assured basis for the use of the generic name Leonaspis Richter (R.) & Richter (E.), 1917 (class Trilobita). Opinions and Declarations rendered by the ICZN, 17(20): 361-376. 1957 http://biostor.org/reference/146419  http://biodiversitylibrary.org/page/34651906 

ICZN 1958: Opinion 499 (Case 1034) Designation under the Plenary Powers for the nominal genus Protopeltura Brögger, 1882, of a type species in harmony with accustomed usage and validation under the same Powers of the emendation to Peltura of the generic name Peltoura Milne Edwards (H.) 1840 (class Trilobita). Opinions and Declarations rendered by the ICZN, 17(21): 377-394. 1958 http://biostor.org/reference/146420  http://biodiversitylibrary.org/page/34651922 

ICZN 1958: Opinion 500 (Case 289) Validation under the Plenary Powers of the spelling Pieridae for the name of the family-group taxon having the genus Pieris Schrank, 1801 as its type genus (class Insecta, order Lepidoptera). Opinions and Declarations rendered by the ICZN, 17: 395-422. 1958 http://biostor.org/reference/146421  http://biodiversitylibrary.org/page/34651940