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Opinion 321 Addition to the Official List of Specific Names in Zoology of the specific name striatoradiatus Leske, 1778, as published in the combination Spatangus striato-Radiatus, the oldest available name for the fossil Echinoderm from the Limburg Cretaceous (Maestrichtian) commonly known as the Spatangue de Maestricht (class Echinoidea)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 9, issue 11, pages 171-184
Created: 2015-05-26, modified: 2025-12-17
Opinion 328 Suppression, under the Plenary Powers, of the specific name caesius Cloquet, 1818, as published in the combination Coluber caesius, for the purpose of validating the specific name Irregularis Leach, 1819, as published in the combination Coluber Irregularis (class Reptiha, order Squamata)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 9, issue 20, pages 299-308
Created: 2015-05-26, modified: 2025-12-17
Opinion 345 Rejection of a proposal for the use of the Plenary Powers for the benefit of the generic name Rhina Latreille, [1802-1803] (class Insecta, order Coleoptera) and addition of the generic name Rhina Schneider, 1801 (class Elasmobranchii) to the Official List of Generic Names in Zoology; designation under the Plenary Powers for the genera Rhinostomus Rafinesque, 1815, and Magdalis Germar, 1817 (class Insecta, order Coleoptera) of type species in harmony with accustomed usage; validation under the Plenary Powers of the specific name barbicornis Latreille, [1803-1804], as published in the combination Rhina barbicornis (class Insecta, order Coleoptera)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 10, pages 353-388
Created: 2015-05-22, modified: 2025-12-17
Direction 14 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 applications relating to the names of ammonites published in volume 2 of the Bulletin of Zoological nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 10, issue 18, pages 463-480
Created: 2015-05-25, modified: 2025-12-17
Direction 28 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 the Opinions included in volume 10 of the Opinions and Declarations rendered by the International Commission on Zoological nomenclature, other than family-group names already dealt with in those Opinions or in Directions included in that volume
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 10, issue 21, pages 493-510
Created: 2015-05-25, modified: 2025-12-17
Opinion 365 Suppression, under the Plenary Powers, of the specific name cinereous le Conte, 1852, as published in the combination Crotalus cinereous, for the purpose of rendering the specific name Atrox Baird & Girard, 1853, as published in the combination Crotalus Atrox, the oldest available name for the Western Diamond Rattle Snake (class Reptilia, order Squamata)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 11, pages 215-230
Created: 2015-05-26, modified: 2025-12-17
Opinion 357 Designation under the Plenary Powers (a) of a type species in harmony with accustomed usage, for the genus Chortoicetes Brunner von Wattenwyl, 1893, and (B) of the gender to be attributed to the name of that Genus and to the name Austroicetes Uvarov, 1925 (class Insecta, order Orthoptera)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 11, issue 7, pages 113-128
Created: 2015-05-26, modified: 2025-12-17
Opinion 366 Suppression, under the Plenary Powers, of the specific name multimaculata Jan, 1863, as published in the combination Crotalus lugubris var. Multimaculata, for the purpose of rendering the specific name Polysticta Cope, 1865, as published in the combination Caudisona Polysticta, the oldest available name for the Mexican Lance-Headed Rattlesnake (class Reptilia, order Squamata)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 11, issue 16, pages 231-244
Created: 2015-05-26, modified: 2025-12-17
Opinion 369 Suppression under the Plenary Powers of the generic names Tylos Meigen 1800 (class Insecta, order Diptera) and Tylos Heyden 1826 (class Arachnida) and validation thereby of the generic names Tylos Audouin, (1826) (class Crustacea, order Isopoda) and Micropeza Meigen 1803 (class Insecta, order Diptera)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 11, issue 19, pages 265-300
Created: 2015-05-22, modified: 2025-12-17
Direction 18 Designation under the Plenary Powers of a lectotype for the nominal species Columba macroura Linnaeus, 1758, to Secure that that name shall Apply to the Mourning Dove and that the name Columba migratoria Linnaeus, 1766, shall be the oldest available name for the Passenger Pigeon {Direction supplementary to Opinion 61)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 1C, issue C.9, pages 113-132
Created: 2015-05-25, modified: 2025-12-17
Direction 22 Addition to the Official List of Specific Names in Zoology of (a) the specific names of fifty-seven species, each of which is the type species of a genus in the class Mammalia, 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 two species belonging to the same class, each of which is currently regarded as the oldest available name for the type species of a genus, the name of which was placed on the Official List in the same period
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 1C, issue C13, pages 179-200
Created: 2015-05-25, modified: 2025-12-17
Direction 21 Validation under the Plenary Powers of the generic names Bubo Dumeril, 1806, Coturnix Bonnaterre, 1790, Egretta Forster, 1817, and Oriolus Linnaeus, 1766 (class Aves), by the suppression of older Homonyms published by Brisson in 1760 (validation of four erroneous entries on the Official List of Generic Names in Zoology made by the ruling given in Opinion 67)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 1C, issue C.12, pages 161-178
Created: 2015-05-25, modified: 2025-12-17