On Caledromusrobinsmithi , a new genus and species of Psychrodromini Martens, 2001 (Crustacea, Ostracoda, Herpetocypridinae) from New Caledonia (Pacific Ocean).

Autor: Martens K; Royal Belgian Institute of Natural Sciences, Freshwater Biology, Vautierstraat 29, B-1000 Brussels, Belgium.; Ghent University, Dept. Biology, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium., Ferreira VG; State University of Maringá (UEM), Centre of Biological Sciences (CCB), Department of Biology (DBI), Graduate Program in Ecology of Inland Water Ecosystems (PEA), Av. Colombo, 5790, CEP 87020-900, Maringá, PR, Brazil., de Almeida NM; State University of Maringá (UEM), Centre of Biological Sciences (CCB), Department of Biology (DBI), Graduate Program in Ecology of Inland Water Ecosystems (PEA), Av. Colombo, 5790, CEP 87020-900, Maringá, PR, Brazil., Higuti J; State University of Maringá (UEM), Centre of Biological Sciences (CCB), Department of Biology (DBI), Graduate Program in Ecology of Inland Water Ecosystems (PEA), Av. Colombo, 5790, CEP 87020-900, Maringá, PR, Brazil.
Jazyk: angličtina
Zdroj: ZooKeys [Zookeys] 2023 Jun 01; Vol. 1165, pp. 155-182. Date of Electronic Publication: 2023 Jun 01 (Print Publication: 2023).
DOI: 10.3897/zookeys.1165.104045
Abstrakt: The New Caledonian Archipelago is a hot spot for biodiversity and endemism. Whereas popular groups such as birds and plants are well-studied, invertebrate groups such as ostracods remain ill-known. Here, Caledromusrobinsmithi gen. et sp. nov. is described from a single locality on 'Grande Terre', the main island of the archipelago. The new genus belongs to the Psychrodromini, one of the four tribes in the subfamily Herpetocypridinae (family Cyprididae). Caledromus gen. nov. can be distinguished from all other herpetocypridinids by a combination of the following factors: the absence of marginal septa in both valves, the mildly developed marginal valve structures, the small Rome organ on the A1, the total reduction of the five natatory setae on the A2, the rectangular second palp segment of the Mx1, the broad and asymmetrical palp on the female T1, the absence of additional postlabyrinthal coils in the Hp and the seta Sp of the CR which is a fixed spine. Because of the close similarity to the genus Psychrodromus , the new genus is thought to have Palaearctic affinities, contrary to other ostracod species in New Caledonia, which are either circumtropical or with Australian zoogeographical connections.
Competing Interests: No conflict of interest was declared.
(Koen Martens, Vitor Góis Ferreira, Nadiny Martins de Almeida, Janet Higuti.)
Databáze: MEDLINE