Abstract
The diverse deep-water ostracod fauna of the subclass Myodocopa in the North-Western Pacific includes about 52 benthic and pelago-benthic species and has a high degree of endemism, whereas the deep-water zone of the Far East seas is inhabited by an impoverished Pacific fauna of ostracods. The deep-sea ostracod fauna in a basin of the Sea of Okhotsk is poorer (16 species) than that in the North-Western Pacific because this sea is separated from the oceanic waters by the Kuril Ridge. The ostracod fauna of the Sea of Japan do not include any typical deep-water species compared to ostracod fauna of the adjacent regions. The ostracod fauna of the deep-sea zone in the North-Western Pacific consists mainly of pelago-benthic species of the subfamily Bathyconchoeciinae (Halocyprida). This paper presents descriptions of the Bathyconchoecetta gen. nov. and two new species of this subfamily.
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