The purpose of this application, under Article 23.9.5 of the Code, is to conserve the specific name of the terrestrial snail Bulimus cylindricus Menke, 1828 (currently Brephulopsis cylindrica, enidae), originally published as a junior primary homonym of Bulimus cylindricus Gray, 1825 (currently classified in the genus Macroceramus, urocoptidae) by ruling under the plenary power to disregard their primary homonymy.

The purpose of this application, under Article 70.2 of the Code, is to conserve the current usage of the generic name Phelister Marseul, 1853 for a well-established genus of histerid beetles. Modern authors cite either Phelister haemorrhous Marseul, 1853 (designated by Kryzhanovskij & Reichardt, 1976) or Paromalus rouzeti Fairmaire 1850 (designated by Mazur, 1984) as the type species of Phelister. However, the correct, long-overlooked type species is Platysoma venustum LeConte, 1844, which is currently recognized as a valid species of Baconia Lewis, 1885. Acceptance of Platysoma venustum as the type species of Phelister would change the current concept of that genus to that of Baconia, and the species currently included in Phelister would require a new genus-group name as there are no junior synonyms from which to choose the next available name. To avoid the nomenclatural instability that would result from following the Principle of Priority, it is proposed that all type fixations for Phelister Marseul, 1853 preceding that of Phelister haemorrhous Marseul, 1853 by Kryzhanovskij & Reichardt (1976) be set aside.

The purpose of this application, under Articles 23.9.3, 23.9.5 and 81.2.1 of the Code, is to conserve the specific name Onitis aeruginosus Klug, 1855. Although Onitis aeruginosus Perty, 1830 and Onitis aeruginosus Klug, 1855 are primary homonyms, both names are in use today and have not been considered congeneric since 1859, when the senior homonym was transferred to the genus Gromphas Brullé, 1837. As the probability of these being considered congeneric in the future is very small, it is proposed that Onitis aeruginosus Klug, 1855 be conserved by ruling that it is not invalid by reason of being a primary junior homonym of Onitis aeruginosus Perty, 1830. A third homonym, Onitis aeruginosus Gistel, 1831, also has priority over Onitis aeruginosus Klug, 1855, but cannot be fixed to any species; therefore, it should be considered a nomen dubium and totally suppressed for the purposes of the Principle of Priority and of the Principle of Homonymy.

The purpose of this application, under Article 81 of the Code, is the conservation of the spelling of the buprestid genus name Polybothris. The name was originally published as Polybotris but the spelling Polybothris has been in prevailing usage since 1900. Reversal of precedence cannot be used to suppress Polybotris since the spelling has been used in a small number of publications after 1899.

The purpose of this application, under Articles 29 and 55.3 of the Code, is to remove homonymy between the family-group names phycinae Swainson, 1838 (Osteichthyes, Gadiformes, phycidae) and phycinae Lyneborg, 1976 (Insecta, Diptera, therevidae). It is proposed that the stem of the genus-group name Phycus Walker, 1850, on which the insect family-group name is based, be emended to change the family-group name to phycusinae, leaving the fish family-group name, based on Phycis Walbaum, 1792, unaltered. An issue regarding the type-species of Phycis Walbaum, 1792, came to light in this process, namely that the previously assumed type species, Tinca marina (attributed to Walbaum (1792) and considered a junior synonym of Blennius phycis Linnaeus, 1766), is a nomen nudum. So, an additional purpose of this application, under Articles 78.1 and 81.1 of the Code, is to maintain the prevailing usage of Blennius phycis Linnaeus, 1766 as the de facto type species of Phycis Walbaum, 1792 by setting aside all previous type species designations and designating Blennius phycis Linnaeus, 1766 as the type species.

The purpose of this application, under Article 33.2.3 of the Code, is to correct the spelling cheesmani to cheesmanae for a tree frog named after Evelyn Cheesman. Following the finding that Hyla montana Peters & Doria, 1878 was in reality a member of the genus Nyctimystes Stejneger, N. montana Parker, 1936 became a secondary homonym. The replacement name, N. cheesmani Tyler, 1964, was given a masculine suffix, in error. Following the emendation to the feminine cheesmanae by Menzies (1976), there has been argument about whether the emendation was justified or not. To resolve the matter the Commission is here asked to rule that the emendation was justified and to place N. cheesmanae on the Official List of Specific Names in Zoology.

The purpose of this application, under Article 23.9.3 of the Code, is to conserve the specific name Podocnemis unifilis Troschel, 1848, for a widely distributed species of Amazonian turtle (family podocnemididae) of both economic and conservation importance, by giving it precedence over its infrequently used senior synonym Podocnemis cayennensis (Schweigger, 1812). This species, the Yellow-spotted River Turtle, has long been referred to as P. unifilis by the IUCN Red List and CITES, as well as in at least 200 scientific publications over more than a century, whereas the name P. cayennensis has only been applied to this species in very few recent publications. Prior to 1974, the name cayennensis had usually been used incorrectly for another species, the Red-headed River Turtle, Podocnemis erythrocephala (Spix, 1824), as noted and corrected by Mittermeier & Wilson (1974) and Pritchard & Trebbau (1984). The conservation of the binomen P. unifilis will stabilize the use of a name that has been in general use for this species in the vast majority of the scientific publications, government documents, endangered species lists, and the general literature for over 100 years. Giving precedence to the older name (cayennensis) would be counter to usage, and would create much confusion in the literature.

The Commission has conserved the usage of the generic name Praeradiolites Douvillé, 1903 by designation of Sphaerulites ponsiana d'Archiac, 1837 as the type species.

The Commission did not support an application to give precedence to the name Chelodina rugosa Ogilby, 1890 (currently Macrochelodina rugosa) for the northern long-necked turtle from northern Australia over Chelodina oblonga whenever the two are considered to be synonyms, nor to set aside all previous designations of a type specimen for Chelodina oblonga Gray, 1841 and to designate as its neotype the lectotype of Chelodina colliei Gray, 1856.

The Commission has conserved the specific name Testudo gigantea Schweigger, 1812 (family testudinidae) in its customary usage for the giant land tortoise found on Aldabra Atoll in the western Indian Ocean, by affirmation of the neotype designation of 2006 and suppression of T. dussumieri Gray, 1831.