Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

The purpose of this application is to conserve the widely used names Procoptodon rapha Owen, 1874 and P. pusio Owen, 1874 for Pleistocene short-faced kangaroos (macropodidae: sthenurinae) from Australia. Two senior synonyms, P. scottii (Krefft, 1870) and P. thomsonii (Krefft, 1870) have been used only once since 1899. Two subjective synonyms of Procoptodon Owen, 1874, Halmaturotherium and Halmatutherium, were published by Krefft in 1872 and 1873 respectively, but neither included nominal species or has been used. The suppression is proposed of these slightly older (but disused) generic synonyms and (virtually unused) specific synonyms of Procoptodon, P. rapha and P. pusio

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

The purpose of this application is to stabilize the usage of the names Cynodon Spix in Spix & Agassiz, 1829 and Rhaphiodon Agassiz in Spix & Agassiz, 1829 for two genera of South American freshwater characoid fish (cynodontidae or characidae, cynodontinae). The early history of the names is complex and a number of interpretations have been put forward. It is proposed that Cynodon gibbus Spix & Agassiz, 1829 be designated the type species of Cynodon, that R. vulpinus Spix & Agassiz, 1829 be designated as the type species of Rhaphiodon, and that, if their type species are considered to be congeneric, Rhaphiodon be given precedence over Cynodon.

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

The purpose of this application is to conserve the specific name of the European plume moth (family pterophoridae) Gillmeria (or Platyptilia) ochrodactyla ([Denis & Schiffermiiller], 1775). An old specimen of Phalaena tetradactyla Linnaeus, 1758 is of this taxon, and it has recently been proposed that ochrodactyla, the name which has always been used, should be replaced by tetradactyla. However, the type status of this specimen is doubtful and tetradactyla has also been applied to two other species, now known as Merrifieldia tridactyla (Linnaeus, 1758) and M. leucodactyla ([Denis & Schiffermiiller], 1775). It is likely that tridactyla and tetradactyla were synonyms when originally published, and it is proposed that the lectotype of Phalaena tridactyla Linnaeus, 1758 should be designated as neotype of P. tetradactyla and that the former should be selected as the valid specific name of the Merrifieldia taxon. This will both conserve Gillmeria ochrodactyla and eliminate the confused application of tetradactyla to more than one species

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

The purpose of this application is to conserve usage of the name Pedioplanis undata (A. Smith, 1838) for the 'western sand lizard' of southern Africa. The recently rediscovered syntypes are specimens of P. lineoocellata pulchella Gray, 1845 and not of P. undata auct., but acceptance of this typification would result in very considerable confusion. The name P. undata would be transferred to P. I. pulchella auct., the taxon known as P. u. undata would have to have a new name as a subspecies of P. inornata Roux, 1907, and there would be other changes of accepted names. It is proposed that these consequences should be avoided by the designation of a neotype for Lacerta undata A. Smith, 1838.

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

The purpose of this application is to conserve the prevailing usage of the generic and specific names of the Atlantic/Mediterranean nudibranch Doris verrucosa Linnaeus, 1758 by the designation of a neotype. The binomen is in long-accepted use for a well-known European and North American species, and Doris is the type genus of the family dorididae Rafinesque, 1815. However, Doris verrucosa had originally been introduced for one (or more) taxonomic species from the Indian Ocean; these probably belonged to the phyllidiidae, which is placed in a different superfamily from the dorididae.

Opinions and declarations Rendered by the International Commission on Zoological Nomenclature

The purpose of this application is to conserve the long prevailing usage of the names of three hoverflies, Chrysotoxum arcuatum (Linnaeus, 1758), Chrysotoxum festivum (Linnaeus, 1758) and Xanthogramma citrofasciatum (De Geer, 1776). There has been confusion in the literature since 1982, when lectotypes (which may not have been syntypes) were designated for C. arcuatum and C. festivum. These designations had the effect of transferring the name arcuatum to C. festivum auct. and festivum to X. citrofasciatum auct.; the name C. fasciatum (Miiller, 1764) was introduced for C. arcuatum auct. These changes have been followed by some but not all authors, and in accordance with Article 75.6 of the Code it is proposed that the long established usage of the names should be conserved by the designation of neotypes for C. arcuatum and C. festivum.