The purpose of this application, under Article 81.1 of the Code, is, firstly, to conserve the widespread current usage of the name Chaetopterus variopedatus, which is used by polychaete taxonomists and ecologists around the world despite the fact that it is derived from the officially unpublished works of Renier. Furthermore, we request an amendment to the entry for Renier [1804b] in the Official Index of Works in Zoology to make it clear that some names in that unpublished work have been validated by the Commission.

The purpose of this application, under Articles 29 and 55.3 of the Code, is to remove the homonymy between the family-group enhydrini Régimbart, 1882 (Insecta, Coleoptera) and enhydrini Gray, 1825 (Mammalia, mustelidae) which are homonyms resulting from similarity of the names of their respective type genera, Enhydrus Laporte, 1834 and Enhydra Fleming, 1822. Both names are in use and are placed on the Official List of Generic Names in Zoology. It is proposed to change the spelling of the beetle family-group name to enhydrusini by emending the stem of the name of the type genus Enhydrus Laporte, 1834, while leaving the mammalian name, based on Enhydra Fleming, 1822, unchanged.

The purpose of this application, under Article 80.4 of the Code, is to request the emendation of two entries in the Official List of Generic Names in Zoology: that for the genus Otiorhynchus Germar, currently stated to be dated 1824 with type species Curculio clavipes Bonsdorff, 1785, while it is known to have been proposed by Germar in 1822, with type species Curculio rhacusensis Germar, 1822 by monotypy; and that for the genus Loborhynchus Schoenherr, 1823, which should be Loborhynchus Dejean, 1821.

The purpose of this application, under Articles 65.2 and 78.1 of the Code, is to conserve the current usage of the weevil generic name Plinthus Germar, 1817 and the family-group name plinthini Lacordaire, 1863. These are threatened due to a misidentification and emended spelling of Curculio meyerlaei Fabricius, 1801 (entiminae) by Panzer (1803) and subsequent emendation of the spelling of the Fabrician species as Curculio megerlei. It is proposed that Curculio megerlei Panzer, 1803 be ruled to be an available name and designated as the type species of Plinthus Germar, 1817.

The purpose of this application, under Article 23.9.3 of the Code, is to conserve the specific name Salmo formosanus Jordan & Oshima, 1919 (currently Oncorhynchus formosanus) for an endemic landlocked salmon in Taiwan. The older name Salmo saramao Jordan & Oshima in Oshima, 1919 is a senior subjective synonym of S. formosanus, but has not been catalogued or used since it was described. The suppression of S. saramao is therefore proposed to conserve the name S. formosanus.

The purpose of this application, under Articles 65.2.1 and 65.2.2 of the Code, is to preserve stability in the nomenclature and taxonomy of two families of marine fishes by designating Chaetodon orbis Bloch, 1787 as the type species of the genus Ephippus. It has long been overlooked that the type species of Ephippus is actually C. argus and not C. orbis. Chaetodon argus is also the type species of Scatophagus. Under current usage, Ephippus and Scatophagus are the type genera of the family-group names ephippidae and scatophagidae, respectively, two widely known families in fisheries, the pet trade, and medical and popular literature. Application of the Code would create confusion with the use of these two family-group and two genus-group names. It is proposed that C. orbis be designated as type species of the genus Ephippus to stabilise the current usage.

The purpose of this application, under Article 75.6 of the Code, is to conserve the specific name of the name Oligosoma aeneum (Girard, 1857), widely used for a species of New Zealand skink, commonly known as the copper skink. We have found Tiliqua ornata Gray, 1843 (currently Oligosoma ornatum) to be a senior subjective synonym and the oldest available name for this species. The name Oligosoma ornatum has been incorrectly applied since 1977 to a similar but larger sympatric species, commonly known as the ornate skink, and prior to 1977 was in use for a third species, now identified as the brown skink, Oligosoma zelandicum (Gray, 1843). With various generic name changes the name Oligosoma ornatum has been in widespread usage for the larger ornate skink and Oligosoma aeneum for the smaller copper skink, for more than 30 years. Application of the specific name Oligosoma ornatum to a third species within 35 years will cause extreme confusion and inaccuracy of recording of biological data and conservation status. The Commission is requested to maintain the use of the junior synonym Oligosoma aeneum as a nomen protectum and suppress the name Oligosoma ornatum as a nomen oblitum.

The Commission has ruled that the homonymy between the family-group names zosiminae Alcock, 1898 (Crustacea, Decapoda) and zosimidae Seifried, 2003 (Crustacea, Copepoda) is removed. The entire generic name Zosime has been adopted as the stem — making the spelling of the junior homonymzosimeidae.

The Commission has conserved the generic name Myrmarachne MacLeay, 1839 for a well-known and widespread group of extant, ant-mimicking jumping spiders (Araneae, salticidae) by suppression of the little-used senior subjective synonym Entomocephalus Holl, 1829 originally introduced for a fossil spider.

The Commission has ruled that priority is maintained for the generic name Pleias Kirkaldy, 1901 a thread-legged assassin bug from Afrotropical and Oriental Regions, 1901, thus it remains the senior synonym of the name Bagauda Bergroth, 1903 (type species Bagauda avidus Bergroth, 1903).

A proposal to fix the type species of the genus Liburnia Stål, 1866 as Embolophora monoceros Stål, 1855 for a genus of delphacid planthopper was not approved by the Commission. Commission action was not required, since Liburnia Stål, 1866 was proposed by its author as a junior objective synonym of Embolophora Stål, 1853. Consequently, the type species for both is Embolophora monoceros Stål, 1855, regardless of Stål's (1866) intentions.

The Commission has ruled that the specific name Chrysophanus florus Edwards 1884 (currently Lycaena florus) (Insecta, Lepidoptera, lycaenidae) for a butterfly species from North America is conserved by designation of a male of Lycaena helloides (Boisduval, 1852) as neotype for Polyommatus castro Reakirt, 1866 (currently Lycaena castro).

The Commission has ruled that the current usage of the name Clusiodes Coquillett, 1904 (replacement name for Heteroneura Fallén, 1823) is conserved for a widespread clusiid genus by setting aside all previous type fixations and by designating H. albimana Meigen, 1830 as the type species.

The Commission has conserved the name Pachyramphus G.R. Gray in Gould, 1839 (July) (cotingidae) in its accustomed usage for a genus of cotinga from Central and South America. The name Pachyramphus Gould, 1839 (January) and all its uses before July 1839 have been suppressed.

The Commission has ruled that the generic name Procynosuchus Broom, 1937 for a group of Permian cynodonts (family procynosuchidae) has precedence over the older names Cyrbasiodon Broom, 1931 and Parathrinaxodon Parrington, 1936 whenever these genera are considered to be synonyms.

All type fixations for a species of extinct vole Villanyia exilis Kretzoi, 1956 prior to that by Terzea (1991) have been set aside in order to conserve prevailing usage.