The purpose of this application, under Articles 23.9.3 and 81.2.3 of the Code, is to conserve the widespread usage of the name Halectinosoma Vervoort, 1962 for a common genus of primarily marine harpacticoid copepods in the family ectinosomatidae. The name Halectinosoma is threatened by the senior subjective synonym Pararenosetella Lang, 1944 (type species Ectinosoma erythrops Scott & Scott, 1896). In the interest of stability and universality it is proposed to set aside all previous type fixations for Halectinosoma Vervoort, 1962 and designate Ectinosoma chrystalii Scott, 1894 as the type species. The originally designated type species is Ectinosoma sarsii Boeck, 1873, but this species is now considered as being incertae sedis in the family ectinosomatidae and its generic affinity is uncertain. It is also proposed that Halectinosoma Vervoort, 1962 be given precedence over Pararenosetella Lang, 1944 whenever the two names are considered to be synonyms.

The purpose of this application, under Articles 23.9.3 and 81.2.3 of the Code, is to conserve the generic name Heterolaophonte Lang, 1948 for a group of marine harpacticoid copepods (family laophontidae) by giving it precedence over the unused senior names Mesolaophonte Nicholls, 1941 and Monolaophonte Nicholls, 1941 whenever these names are considered to be synonyms.

The purpose of this application, under Article 75.6 of the Code, is to conserve the usage of the specific name of Macrobrachium rosenbergii (De Man, 1879) for a commercially important giant freshwater prawn from Southeast Asia by designating a neotype. Recent taxonomic reappraisals show that the two subspecies of this prawn, Macrobrachium rosenbergii rosenbergii (De Man, 1879) and M. rosenbergii dacqueti (Sunier, 1925) are in fact distinct species. The usage of the name M. rosenbergii for the species of prawn that is predominantly fished, cultured and studied by biologists is threatened, as its recently designated lectotype is M. dacqueti, while the holotype of M. rosenbergii is a different species, which has generated much less commercial and scientific interest. As substantial confusion will result if the names are changed, it is proposed that the existing holotype of Macrobrachium rosenbergii (De Man, 1879) be set aside and the lectotype of M. dacqueti (Sunier, 1925) be designated as neotype of Macrobrachium rosenbergii in its place. This action will allow biologists to retain the name M. rosenbergii for the commercially valuable species and will result in the less frequently used name M. dacqueti becoming a junior objective synonym of M. rosenbergii. For the species defined by the current holotype of M. rosenbergii, a new name Macrobrachium wallacei is proposed and a holotype is designated.

The purpose of this application, under Article 75.6 of the Code, is to conserve the established and current species concept and usage of the name Myopa testacea (Linnaeus, 1767). This usage is threatened by the designation of a specimen in Linnaeus's collection as a lectotype of Conops testacea which implied that the name was misapplied by previous authors. This designation has not so far been accepted by any subsequent authors, and it is therefore proposed that the long established usage of the name be conserved by setting aside all previous type fixations for M. testacea (Linnaeus, 1767) and that a neotype that is in accord with the current use of the name be designated.

The purpose of this application, under Article 23.9.3 of the Code, is to conserve the name Pachyramphus G.R. Gray in Gould, 1839 (July) (family cotingidae) in its accustomed usage, for a genus of cotinga from Central and South America. It is proposed that the name Pachyramphus Gould, 1839 (January) and all its uses before July 1839 be suppressed.

The name Coprinisphaera Sauer, 1955, for an ichnogenus attributed to dung-beetle brood balls (ichnofamily coprinisphaeridae), was threatened by a rarely used senior subjective synonym Fontanai Roselli, 1939. The universally accepted name Coprinisphaera has been conserved by giving it precedence over Fontanai. The name Fontanai was not suppressed as ichnotaxonomy is at a stage of structural typology and the name should remain available for future refined work on ichnotaxa.

An application to conserve the specific name Cherax tenuimanus Smith, 1912 by designation of neotypes for this species and for Cherax cainii Austin in Austin & Ryan, 2002, two species of freshwater crayfish or ‘marron’ important in the Australian aquaculture industry, was not approved. Type fixations for Cherax tenuimanus Smith, 1912 and Cherax cainii Austin in Austin & Ryan, 2002 are maintained.

The only known syntype of Cancer setosus Fabricius, 1798 (currently Pseudograpsus setosus) is extremely deteriorated. With this ruling it has been replaced with a neotype. Cancer setosus Fabricius, 1798 has been accepted by carcinologists as a senior subjective synonym of Grapsus penicilliger Latreille, 1817 and Pseudograpsus barbatus H. Milne Edwards, 1853 for 150 years, and as such, it is essential that a recognisable type be available to the scientific community.

The Commission has ruled that priority is maintained for the name Diphucrania Dejean, 1833 and the name Selagis Mannerheim, 1837 for two genera of jewel beetles. Proposals to conserve the junior synonym Cisseis Gory & Laporte de Castelnau, 1839 of the former name and the junior synonym Curis Gory & Laporte de Castelnau, 1838 of the latter name were not approved.

The Commission has ruled that priority is maintained for Streptopelia risoria (Linnaeus, 1758), the specific name of the ringed turtle-dove (ringed dove; barbary dove). A proposal to conserve its junior subjective synonym Streptopelia roseogrisea (Sundevall, 1857), the specific name of the African collared dove, was not approved.