Ostracod Research at the Lake Biwa Museum, Japan

Robin James Smith

Genus Bradleycypris McKenzie, 1982

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

One species has been reported from Korea

1. Bradleycypris vittata (Sars, 1903)

Left view of a female Bradleycypris vittata, length about 0.75 mm.

External view of female left valve of Bradleycypris vittata, length 764 microns. The surface is covered with many small pits.

External view of female right valve of Bradleycypris vittata, length 742 microns. The two valves are noticeably asymmetrical.

Additional figures in: Okubo 1990 (as Strandesia vittata); Okubo 2004 (as Strandesia vittata); Savatenalinton & Martens 2010; Smith et al. 2011; Chang et al. 2012; Zhai & Zhao 2014.
Habitat: Swamps, rivers, rice fields, irrigation ponds and lakes.
Mode of life: Nektobenthic (swimmer).
Reproductive mode: Males only reported from Thailand (Savatenalinton & Martens, 2010). Elsewhere probably asexual.
Known distribution: North Gyeongsang and South Gyeongsang Provinces (Chang et al. 2012). Elsewhere, Japan (Smith et al. 2011), China (Sars 1903), Thailand (Savatenalinton & Martens 2010), Indonesia (Tressler 1937) and Sri Lanka (Gurney 1916).
References:
⚬ Chang, C. Y., Lee, J. & Smith, R. J. 2012. Nonmarine ostracods (Crustacea) from South Korea, including a description of a new species of Tanycypris Triebel (Cyprididae, Cypricercinae). Zootaxa, 3161, 1-19.
⚬ Gurney, R. 1916. On some freshwater Entomostraca from Ceylon. Proceedings of the Zoological Society of London, 1, 333-343.
⚬ Martens, K. & Savatenalinton, S. 2011. A subjective checklist of the Recent, free-living, non-marine Ostracoda (Crustacea). Zootaxa, 2855, 1-79.
⚬ Okubo, I. 1990. Sixteen species of freshwater Ostracoda from Japan. Bulletin of the Biogeographical Society of Japan, 45, 39-50.
⚬ Okubo, I. 2004. Nihon tansui san kaimijinko rui ni tsuite. Kabushikigaisha Sanmon Insatsusho, Okayama, Japan, 72pp. [In Japanese, privately published].
⚬ Sars, G.O. 1903. Fresh-water Entomostraca from China and Sumatra. Archiv for Mathematik og Naturvidenskab, 25, 3-44.
Savatenalinton, S. & Martens, K. 2010. On the subfamily Cypricerinae McKenzie, 1971 (Crustacea, Ostracoda) from Thailand, with the description of six new species. Zootaxa, 2379, 1-77.
⚬ Smith, R. J., Janz, H. & Okubo, I. 2011. Recent Cyprididae and Ilyocyprididae (Crustacea: Ostracoda) from Lake Biwa, Japan, including a summary of the lake's ostracod fauna. Zootaxa, 2874, 1-37.
⚬ Tressler, W.L. 1937. Ostracoda: Mitteilung von der Wallacea-Expedition Woltereck 1931-32. Internationale Revue der gesamten Hydrobiologie und Hydrographie, 34, 188-207.
⚬ Zhai, D. & Zhao, W. 2014. On some recent non-marine ostracods from northern China, with description of one new species. Crustaceana, 87, 985-1026.