On some modern Ostracoda (Crustacea) from the Tibetan Plateau in SW China, with descriptions of three new species

• DOI: 10.11646/zootaxa.4942.4.2
• Publication Date: 2021-03-16T00:31:59Z
• Authors: PING PENG; DAYOU ZHAI; ROBIN J. SMITH; QIANWEI WANG; YUN GUO; LIPING ZHU
• Keywords: Ostracod; Appendage

Studies of Holocene ostracods the Tibetan Plateau have mostly centred around valves and carapaces collected from lake sediments, some at or near substrate surface others short cores. Reports habitats other than lakes are scarce, few living species found in this region appendages described, hindering further taxonomic phylogenetic work. For study collections were made ponds, as well two rivers one lake. Six species, including three previously undescribed, recovered: Tonnacypris estonica (Järvekülg, 1960), Arctocypris edita n. sp., Cypris pubera O.F. Müller, 1776, Potamocypris variegata (Brady & Norman, 1889), Ilyocypris tibeta Fabaeformiscandona monticulus sp. Specimens include males, unknown for suggesting it is a geographical parthenogen. A revision fifth limb morphology genus Arctocypris, subsequent amended diagnosis given. Based on carapace appendage features, Eucypris mareotica (Fischer, 1855) transferred to genus: com. nov. There now ca. 100 ostracod reported modern subsurface sediments Plateau, but only 19 those can be confirmed alive when (i.e. had intact). The families Limnocytheridae Ilyocyprididae both relatively diverse plateau compared with Palaearctic zoogeographical generally. About third known there, potentially very high rate endemism.