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Opinion 377 Suppression under the Plenary Powers of the specific name tereticauda Eschscholtz, 1833, as published in the combination Triton tereticauda, for the purpose of rendering the specific name Lugubris Hallowell, 1849, as published in the combination Salamandra Lugubris, the oldest available name for the species concerned (class Amphibia, order Caudata)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 11, issue 27, pages 401-410
Created: 2015-05-25, modified: 2025-12-17
Direction 41 Addition to the Official List of family- group names in Zoology or, as the case may be, to the Official Index of Rejected and Invalid family-group names in Zoology of the family-group names Involved in volume 11 of the Opinions and Declarations rendered by the International Commission on Zoological nomenclature, other than family-group names already dealt with in those Opinions
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 11, issue 30, pages 431-452
Created: 2015-05-26, modified: 2025-12-17
Proposed addition to the "Official List of Family-Group Names in Zoology" or, as the case may be to the "Official Index of Rejected and Invalid Family-Group Names in Zoology" of family-group names involved in the cases dealt with in Volume 12 of the "Opinions and Declarations" Series ("Opinions" 380-400)
Authors: Francis Hemming
Published in Opinions and Declarations Rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, pages 462-468
Created: 2011-06-03, modified: 2025-12-17
Opinion 380 Suppression for nomenclatorial purposes under the Plenary Powers of the catalogue of the collection of Animals formed by Martinus Houttuyn prepared under the title Animalium Musaei Houttuiniani Index in connection with the sale of the collection in 1787
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 1, pages 1-32
Created: 2015-05-25, modified: 2025-12-17
Opinion 381 Suppression, under the Plenary Powers, of two long-neglected specific names for the purpose of rendering the specific name hispidus Olivier, 1811, as published in the combination Palaemon hispidus (class Crustacea, order Decapoda), the oldest available name for the species concerned
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 2, pages 33-42
Created: 2015-05-25, modified: 2025-12-17
Opinion 385 Determination under the Plenary Powers of the method to be adopted in interpreting the nominal species Coluber sirtalis Linnaeus, 1758, the common Garter Snake of the Eastern United States, and approval of the neotype designated for the foregoing species and of that designated for the nominal species Coluber saurita Linnaeus, 1766, the Eastern Ribbon Snake of North America
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 6, pages 191-230
Created: 2015-05-25, modified: 2025-12-17
Opinion 388 Suppression under the Plenary Powers of the generic name Trichopsylla Kolenati, 1863, for the purpose of providing a firm basis for the use of the generic name Chaetopsylla Kohaut, 1903 (class Insecta, order Siphonaptera)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 9, pages 251-264
Created: 2012-05-25, modified: 2025-12-17
Opinion 394 Addition to the Official List of Generic Names in Zoology of the name Portunus Weber, 1795, and to the Official Index of Rejected and Invalid generic names in Zoology of the name Portunus Fabricius, 1798 (class Crustacea, order Decapoda)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 17, pages 315-336
Created: 2015-05-26, modified: 2025-12-17
Opinion 396 Use of the Plenary Powers to Permit of the addition to the Official List of Specific Names in Zoology of the specific name immigrans Sturtevant, 1921, as published in the combination Drosophila immigrans (class Insecta, order Diptera)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 19, pages 347-362
Created: 2015-05-26, modified: 2025-12-17
Direction 53 Addition to the Official List of Family-group Names in Zoology of Family-group Names based upon the names of certain genera of the order Carnivora (class Mammalia) placed on the Official List of Generic Names in Zoology by the ruling given in Opinion 384 and matters incidental thereto
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 25, pages 441-456
Created: 2012-11-03, modified: 2025-12-17
Direction 54 Addition to the Official List of family- group names in Zoology, or, as the case may be, to the Official Index of Rejected and Invalid family-group names in Zoology of the family-group names Involved in the Cases dealt with in volume 12 of the Opinions and Declarations rendered by the International Commission on Zoological Nomen Clature, other than family-group names already dealt V^ith in those Opinions
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 12, issue 26, pages 457-470
Created: 2015-05-26, modified: 2025-12-17
Opinion 401 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 13, issue 1, pages 1-64
Created: 2015-05-26, modified: 2025-12-17
Opinion 406 Use of the Plenary Powers to secure that the specific name nigricouis Brehm, 1831, as published in the combination Podiceps nigricouis shall be the oldest available specific name for the Black-Necked Grebe (class Aves)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 13, issue 7, pages 119-130
Created: 2015-05-26, modified: 2025-12-17
Direction 58 Addition to the Ojficial List of Family-group Names in Zoology or, as the case may be, to the Official Index of Rejected and Invalid family-group names in Zoology of the family-group names Involved in the Cases dealt with in volume 13 of the work Opinions and Declarations rendered by the International Commission on Zoological nomenclature, other than the family-group names Involved in connection with the generic names dealt with in Opinion 401
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 13, issue 21, pages 275-290
Created: 2015-05-26, modified: 2025-12-17
Opinion 419 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 3, pages 69-128
Created: 2015-05-26, modified: 2025-12-17
Opinion 420 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 Regies
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 4, pages 129-168
Created: 2015-05-26, modified: 2025-12-17
Opinion 422 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 6, pages 181-196
Created: 2015-05-26, modified: 2025-12-17
Opinion 423 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 7, pages 197-214
Created: 2015-05-26, modified: 2025-12-17
Opinion 424 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 8, pages 215-242
Created: 2015-05-26, modified: 2025-12-17
Opinion 427 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 11, pages 281-310
Created: 2015-05-26, modified: 2025-12-17
Opinion 428 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 Chehniceras, Hyatt, 1903 (class Cephalopoda, order Ammonoidea)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 12, pages 311-322
Created: 2015-05-26, modified: 2025-12-17
Opinion 429 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 13, pages 323-338
Created: 2015-05-26, modified: 2025-12-17
Opinion 430 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 14, pages 339-346
Created: 2015-05-26, modified: 2025-12-17
Opinion 432 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 16, pages 373-392
Created: 2015-05-26, modified: 2025-12-17
Opinion 434 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 18, pages 403-424
Created: 2015-05-26, modified: 2025-12-17
Opinion 435 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 14, issue 21, pages 425-458
Created: 2015-05-26, modified: 2025-12-17
Direction 31 Determination of the gender to be attributed to the generic name Bathynectes Stimpson, [1871] (class Crustacea, order Decapoda), a name placed on the Official List of Generic Names in Zoology by the ruling given in Opinion 73
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1C, issue C.20, pages 299-306
Created: 2015-05-25, modified: 2025-12-17
Direction 32 Addition to the Official List of Works Approved as available for Zoological nomenclature of the titles of certain works dealt with in Opinions rendered in the period up to the end of 1936 and to the Official Index of Rejected and Invalid works in Zoological nomenclature of certain works similarly dealt with in the same period and matters incidental thereto
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1C, issue C.21, pages 307-328
Created: 2015-05-25, modified: 2025-12-17
Direction 52 Determination of the gender to be attributed to the generic names Cryptobranchus Leuckart, 1821 (class Amphibia) and Eremias Wiegmann, 1834 (class Reptilia) placed on the Official List of Generic Names in Zoology by the ruling given in Opinion 92
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, pages 309-318
Created: 2015-05-26, modified: 2025-12-17
Direction 38 Rejection for nomenclatorial Purposes of the anonymously published work entitled Ornithologia Britannica Issued in 1771 and believed to have been written by Marmaduke Tunstall and matters incidental thereto (cancellation of Opinion 38)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.3, pages 83-94
Created: 2015-05-26, modified: 2025-12-17
Direction 40 Determination of the gender to be attributed to the names of fifty-five genera of the Phylum Arthropoda, exclusive of genera of Decapod Crustacea, placed on the Official List of Generic Names in Zoology in the period up to the end of 1936
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.5, pages 139-152
Created: 2015-05-26, modified: 2025-12-17
Direction 42 Determination of the gender to be attributed to the names of seventy-eight genera of various classes of Invertebrates and of six genera of the class Urochorda placed on the Official List of Generic Names in Zoology in the period up to the end of 1936
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.6, pages 153-170
Created: 2015-05-26, modified: 2025-12-17
Direction 43 Addition to the Official List of Specific Names in Zoology (a) of the specific names of the type species of seventy three genera in the class Aves, the names of which Were placed on the Official List of Generic Names in Zoology in the period up to the end of 1936 and (B) of twelve specific names which are currently regarded as senior Subjective synonyms of such names
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.7, pages 171-210
Created: 2015-05-26, modified: 2025-12-17
Direction 44 Correction of certain entries relating to the names of genera in the class Aves made on the Official List of Generic Names in Zoology in the period up to the close of 1936 and addition to the Official Indexes of Rejected and Invalid names in Zoology of certain names given to genera and species of the same class
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.8, pages 211-232
Created: 2015-05-26, modified: 2025-12-17
Direction 45 Substitution of Pinnotheres Bosc, [1801—1802] for Pinnotheres Latreille, [1802 — 1803] (class Crustacea, order Decapoda) on the Official List of Generic Names in Zoology (correction of an error in the ruling given in Opinion 85)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.9, pages 233-242
Created: 2015-05-26, modified: 2025-12-17
Direction 36 Addition to the Official List of Specific Names in Zoology (a) of the specific names of the type species of one hundred and seventy genera of the order Decapoda (class Crustacea), the names of which Were placed on the Official List of Generic Names in Zoology in the period up to the end of 1936 and (B) of the specific names currently treated as senior Subjective synonyms of the names of the type species of Nine other such genera
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.17, pages 1-46
Created: 2015-05-26, modified: 2025-12-17
Direction 56 Completion and in certain Cases correction of entries relating to the names of genera belonging to the classes Pisces, Amphibia and Reptilia made in the Official List of Generic Names in Zoology in the period up to the end of 1936
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.17, pages 337-364
Created: 2015-05-26, modified: 2025-12-17
Direction 57 Addition to the Official List of Specific Names in Zoology (a) of the specific names of Forty-seven species belonging to the classes Cyclostomata, Pisces, Amphibia and Reptilia, each of which is the type species of a genus, the name of which was placed on the Official List of Generic Names in Zoology in the period up to the end of 1936 and (B) of the specific name of one species of the class Amphibia which is currently treated as a senior Subjective synonym of the name of such a species
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1956, in volume 1D, issue D.18, pages 365-388
Created: 2015-05-26, modified: 2025-12-17