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Direction 75 Suppression under the Plenary Powers of the family group name Urinatoridae (correction of Urinatores) Vieillot, 1818, and addition to the Official List of Family Group Names in Zoology of the names Podicipitidae (correction of Podicepinae Bonaparte, 1831, and Gaviidae Coues, 1903, as the family-group names for Grebes and Divers (Loons) respectively (class Aves) (Direction supplementary to Opinion 401)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 13, issue 22, pages 291-308
Created: 2015-05-26, modified: 2025-12-17
Direction 62 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 14 of the work Opinions and Declarations rendered by the International Commission on Zoological nomenclature, other than names already dealt with either in Opinions included in that volume or in a separate Direction
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 14, issue 23, pages 459-470
Created: 2015-05-26, modified: 2025-12-17
Opinion 441 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 Abregee des Insectes Qui Se Trouvent Aux Environs de Paris (Opinion supplementary to Opinion 228)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 6, pages 83-120
Created: 2015-05-26, modified: 2025-12-17
Opinion 447 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 12, pages 211-224
Created: 2011-04-26, modified: 2025-12-17
Opinion 448 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 13, pages 225-234
Created: 2015-05-26, modified: 2025-12-17
Opinion 450 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 15, pages 251-328
Created: 2015-05-26, modified: 2025-12-17
Direction 59 Determination (a) of the method to be Followed in Citing for the Purposes of Zoological nomenclature the Several portions in which the Lepidotteri volume by Orenzio Gabriele Costa of the work entitled Fauna Del Regno Di Napoli Were published, and (B) of the Dates which for the foregoing Purposes are to be assigned to each of those portions
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 16, pages 2-19
Created: 2015-05-26, modified: 2025-12-17
Opinion 452 Addition to Tlie 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 18, pages 339-346
Created: 2015-05-26, modified: 2025-12-17
Opinion 456 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 Regies 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 22, pages 393-418
Created: 2015-05-26, modified: 2025-12-17
Opinion 461 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 15, issue 28, pages 475-484
Created: 2015-05-26, modified: 2025-12-17
Opinion 464 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 3, pages 25-42
Created: 2011-04-26, modified: 2025-12-17
Opinion 470 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 9, pages 129-202
Created: 2011-12-02, modified: 2025-12-17
Opinion 477 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 20, pages 343-352
Created: 2015-05-26, modified: 2025-12-17
Opinion 478 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 21, pages 353-364
Created: 2015-05-26, modified: 2025-12-17
Opinion 479 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 22, pages 365-416
Created: 2015-05-26, modified: 2025-12-17
Direction 79 Substitution on the Official List of Specific Names in Zoology of the specific name brasiliensis Gmelin (J. F.), 1788, as published in the combination Mustela Lutris var. Brasiliensis, for the specific name Sambachii Gray (J. E.), 1837, as published in the combination Pteronura Sambachii (class Mammalia) (Direction supplementary to Opinion 384)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 24, pages 455-464
Created: 2015-05-26, modified: 2025-12-17
Opinion 484 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, pages 73-86
Created: 2015-05-26, modified: 2025-12-17
Opinion 481 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 1, pages 1-14
Created: 2015-05-26, modified: 2025-12-17
Opinion 485 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 7, pages 87-104
Created: 2015-05-26, modified: 2025-12-17
Opinion 486 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 8, pages 105-118
Created: 2015-05-26, modified: 2025-12-17
Opinion 492 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 14, pages 209-254
Created: 2015-05-26, modified: 2025-12-17
Opinion 494 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 16, pages 265-286
Created: 2015-05-26, modified: 2025-12-17
Opinion 495 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
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 17, pages 287-322
Created: 2015-05-26, modified: 2025-12-17
Opinion 498 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)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 17, issue 20, pages 361-376
Created: 2015-05-26, modified: 2025-12-17
Direction 60 Designation under the Plenary Powers of a type species for the genus Scorpio Linnaeus, 1758 (class Arachnida) in harmony with accustomed usage and suppression under the same Powers of the specific name europaeus Linnaeus, 1758, as published in the combination Scorpio Europaeus (amendment of a ruling given in Opinion 104)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, pages 1
Created: 2015-05-26, modified: 2025-12-17
Direction 64 Addition to the Official List of Specific Names in Zoology (a) of the specific names of nineteen species belonging to the class Insecta, 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 names of three species belonging to the same class which are currently treated as senior Subjective synonyms of the names of such species
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, pages 61-74
Created: 2015-05-26, modified: 2025-12-17
Direction 66 Completion and in certain Cases correction of entries relating to the names of genera belonging to the Phylum Arthropoda, the names of which Were placed on the Official List of Generic Names in Zoology in the period up to the end of 1936, other than entries relating to the names of genera belonging to the class Insecta and to the order Decapoda of the class Crustacea
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, pages 85-110
Created: 2015-05-26, modified: 2025-12-17
Direction 67 Addition to the Official List of Specific Names in Zoology (a) of the specific names of Twenty species belonging to the classes Trilobita, Crustacea (other than species of the order Decapoda), Diplopoda and Arachnida, 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 up to the end of 1936, and (B) of the specific name of one species belonging to the class Arachnida which is currently treated as a senior 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 1957, in volume 1E, pages 111-128
Created: 2015-05-26, modified: 2025-12-17
Direction 72 Completion and in certain Cases correction of entries relating to the names of genera of the Phyla Mollusca, Brachiopoda, Echinodermata and Chordata made on the Official List of Generic Names in Zoology by rulings given in Opinions rendered 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 1957, in volume 1E, pages 161-192
Created: 2015-05-26, modified: 2025-12-17
Direction 73 Addition to the Official List of Specific Names in Zoology (a) of the specific names of Twenty-five species of the Phyla Mollusca, Brachiopoda, Echinodermata and Chordata, 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 names of three species belonging respectively to the Phyla Brachiopoda, Echino Dermata and Chordata, each of which is currently treated by Some or All Specialists 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 1957, in volume 1E, pages 193-214
Created: 2015-05-26, modified: 2025-12-17
Direction 76 Completion and in certain Cases correction of entries relating to the names of genera belonging to the Phyla Protozoa, Coelenterata, Platyhelminthes, Nemathelminthes and Annelida, made on the Official List of Generic Names in Zoology by rulings given in Opinions rendered 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 1957, in volume 1E, pages 227-264
Created: 2015-05-26, modified: 2025-12-17
Direction 77 Addition to the Official List of Specific Names in Zoology (a) of the specific names of Thirty-four species belonging to the Phyla Protozoa, Coelenterata, Platyhelminthes, Nemathelminthes, and Annelida, 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 five specific names which are currently treated as senior Subjective synonyms of the names of such species
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, pages 265-292
Created: 2015-05-26, modified: 2025-12-17
Direction 81 Confirmation of the Position on the Official List of Generic Names in Zoology of the generic names Gypaetus Storr, 1784, Anas Linnaeus, 1758, Nyctea Stephens, 1826, and Vireo Vieillot, 1807 (class Aves) and correction of the entries made in Regard thereto (Direction supplementary to Opinion 67)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, pages 315-334
Created: 2015-05-26, modified: 2025-12-17
Direction 82 Confirmation of the Position on the Official List of Generic Names in Zoology of the generic name Trichoglossus Stephens, 1826 (class Aves), Subject to the Substitution of an amended entry in Regard thereto {Direction supplementary to Opinion 67)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, pages 335-360
Created: 2015-05-26, modified: 2025-12-17
Direction 78 Validation under the Plenary Powers of the generic name Daira de Haan, [1833] (class Crustacea, order Decapoda) (validation of an entry on the Ojficial List of Generic Names in Zoology made 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 1957, in volume 1E, issue E.16, pages 293-304
Created: 2015-05-26, modified: 2025-12-17
Direction 86 Validation under the Plenary Powers of the specific name convexa de Haan, [1833], as published in the combination Ocypode (Chasmagnathus) Convexa (class Crustacea, order Decapoda) (Direction supplementary to Opinion 85)
Authors: International Commission on Zoological Nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 1E, issue E.23, pages 403-412
Created: 2015-05-26, modified: 2025-12-17