Ostracod Research at the Lake Biwa Museum, Japan

Robin James Smith

Genus Sarscypridopsis McKenzie, 1977

Superfamily: Cypridoidea Baird, 1845
Family: Cyprididae Baird, 1845
Subfamily: Cypricercinae McKenzie, 1971

One species has been reported from Japan :

1. Sarscypridopsis denticulata Smith & Ozawa, 2023 ?

External view of a female left valve of Sarscypridopsis denticulata, length 436 microns.

External view of a female right valve of Sarscypridopsis denticulata, length 450 microns.

Additional figures in: Smith et al. 2023.
Habitat: Rice fields.
Mode of life: Nektobenthic (swimmer).
Reproductive mode: Asexual.
Known distribution: Kanagawa Prefecture (Smith et al. 2023).
Remarks: This species is currently only known from rice fields in Ishikawa, Fujisawa, Kanagawa Prefecture. However, most species of Sarscypridopsis are from Africa, and the morphologically closest species to this one is from Botswana. It therefore may not be native to Japan.
References:
⚬ Smith, R. J., Ozawa, H., Mizukami, A. & Nakai, S. 2023. A new species of the genus Sarscypridopsis (Crustacea: Ostracoda) discovered in a Japanese rice field. Species Diversity, 28, 1–9.