The purpose of this application, under Article 23.9.3 of the Code, is to suppress the unused and unidentified name Paludina conica Férussac, 1814, in order to protect the name Paludina conica Prévost, 1821 (currently ‘Peringia’ conica), which has been consistently in use since its inception, and for which no junior replacement name is known, thereby avoiding the introduction of a replacement name. Both nominal species are fossils from the Tertiary of the Paris Basin.

The purpose of this application, under Article 75.5 of the Code, is to conserve prevailing usage of the specific name Conus antidiluvianus Bruguière, 1792 for a Neogene fossil cone shell, widely distributed in Europe. The type locality stated in the original description was an Eocene site in the east of the Paris Basin, France, and three more unlocalised specimens were said to exist in various collections. No specimen resembling the original description has since been found in this area and all of the former syntypes are believed to be lost. The type locality has long been considered to be erroneous and the name Conus antidiluvianus has been almost exclusively applied to the Neogene species by most authors, until relatively recently when this name was applied instead to another Eocene fossil from the central Paris Basin, replacing the widely used name Conus parisiensis Deshayes, 1865. In view of the mismatch between original description and type locality, Conus antidiluvianus Bruguière, 1792 is strictly a nomen dubium. A recent lectotype designation of the (lost) shell originally figured did nothing to clarify the identity of this species, and the present authors have elsewhere published their intention, under Article 75.1, to set aside this lectotype in favour of a specified neotype; however, it might be considered that this would not fully comply with Article 75.3.6 and so a ruling by the Commission is requested in order to maintain stability of nomenclature for this species.

The purpose of this application, under Articles 10.1, 13.3 and 81.1 of the Code, is to make available the genus-group name Nesocyrtosoma Marcuzzi, 1976 and subsequently designate Cyrtosoma inflatum Marcuzzi, 1976 as the type species. As this is the prevailing nomenclatural usage, this act will serve to promote stability in this West Indian genus of tenebrionid beetles.

The purpose of this application, under Article 75.5 of the Code, is to replace the damaged holotype of Chilicola vicugna Toro & Moldenke, 1979, which is missing its head, with a neotype. Chilicola vicugna is a small, solitary, stem-nesting bee occurring in north-central Chile. Species identifications in the subgenus Chilicola (Heteroediscelis) rely to a large extent upon diagnostic characters found on the head, and thus it is essential that an intact name-bearing type be made available for future study.

The purpose of this application, under Article 75.6 of the Code, is to conserve the universal usage of Tipula contaminata Linnaeus, 1758 by setting aside all previous type fixations and designating a neotype. Tipula contaminata is the type species of the genus Ptychoptera Meigen, 1803, itself the type genus of the family ptychopteridae Osten Sacken, 1862. This species is found over much of Europe, and all authors subsequent to Meigen (1803) have utilized his concept of the species. However, the holotype of Tipula contaminata Linnaeus, 1758 represents a species of tipulidae. It is proposed that a neotype be designated for Tipula contaminata to preserve two hundred years of common usage and ensure nomenclatural stability at the genus and family rank.

The purpose of this application, under Article 81 of the Code, is to conserve the name dicroglossidae Dubois, 1987 for a family of frogs. Analysis of the publication where the name dicroglossidae was first used (Anderson, 1871) showed that this was an incorrect subsequent spelling of discoglossidae Günther, 1858 and therefore not an available name. This name would have been made available by Dubois (1987) except that Dicroglossus Günther, 1860 was then considered a junior subjective synonym of Euphlyctis Fitzinger, 1843 and thus unable to be the type-genus of a new family-group name according to Article 11.7.1.1 of the Code. However, dicroglossidae is a widely used family name in the recent taxonomy of amphibians. It includes about 180 species distributed in sub-Saharan Africa and tropical Asia. We therefore ask the International Commission on Zoological Nomenclature to make the name dicroglossini Dubois, 1987, with the type genus Dicroglossus Günther, 1860, available by original designation of Dubois (1987, p. 57); to place the names dicroglossini Dubois, 1987 and Dicroglossus Günther, 1860, on the relevant Official Lists of Names in Zoology; and to place the name ‘dicroglossidae Anderson, 1871’, an incorrect subsequent spelling of discoglossidae Günther, 1858, on the Index of Invalid and Rejected Family-Group Names in Zoology.

The Commission has conserved under the plenary power the current usage of the widely used names Scarabaeus Linnaeus, 1758 for a dung rolling beetle genus, scarabaeinae Latreille, 1802 for the dung beetle subfamily, Dynastes MacLeay, 1819 for the Hercules beetle genus, and dynastinae MacLeay, 1819, for the rhinoceros beetle subfamily by setting aside all types species fixations for Scarabaeus before Hope's (1837) designation of Scarabaeus sacer Linnaeus, 1758.

The Commission has conserved under the plenary power the current usage of the name Aphodius fimetarius (Linnaeus, 1758) for a Holarctic species of aphodiine dung beetle by setting aside all previous type fixations and designating a neotype.

The Commission has conserved under the plenary power the current usage of the generic name Brachystoma Meigen, 1822 for a well-established genus of brachystomatid flies by setting aside all type fixations for Brachystoma Meigen, 1822 prior to that of Syrphus vesiculosus Fabricius, 1794 by Blanchard (1840).

The Commission has conserved under the plenary power the current usage of the generic name Hemerodromia Meigen, 1822, for a well-established genus of empidid flies by setting aside all type species fixations for Hemerodromia Meigen, 1822 prior to that of Tachydromia oratoria Fallén, 1815 by Rondani (1856).

The Commission has conserved under the plenary power the generic name Argyra Macquart, 1834 (Diptera, dolichopodidae) for a widely distributed and well-established genus of dolichopodid flies by suppressing Porphyrops Meigen, 1824.

The Commission has conserved under the plenary power the current usage of the generic name Ocydromia Meigen, 1820 for a well-established genus of hybotid flies by setting aside all type species fixations for Ocydromia Meigen, 1820 prior to that of Empis glabricula Fallén, 1816 by Westwood (1840).

The Commission has conserved under the plenary power the usage of the specific name wagleri for a species of venomous snake by ruling that the specific name Cophias wagleri was established by F. Boie (1827), and by designating a neotype. The Commission has ruled that Trigonocephalus [Cophias] wagleri was established by Schlegel (1826) as a separate taxon and not as a replacement name.