Genus Pseudocandona Kaufmann, 1900
Superfamily: Cypridoidea Baird, 1845
Family: Candonidae Kaufmann, 1900
Subfamily: Candoninae Kaufmann, 1900
Six species have been reported from Japan:
1. Pseudocandona abei Smith & Janz, 2008 
Left side view of a female Pseudocandona abei, length about 0.7 mm.
External view of a female left valve of Pseudocandona abei, length 698 microns.
External view of a female right valve of Pseudocandona abei, length 673 microns.
- Additional figures in: Smith & Janz 2008.
- Habitat: Shallow areas of Lake Biwa around willow tree root mats, streams, and marshy areas.
- Mode of life: Benthic.
- Reproductive mode: Asexual. Males unknown.
- Known distribution: Shiga Prefecture and Ishikawa Prefecture, Japan (Smith & Janz 2008).
- References:
- ⚬ Smith, R. J. & Janz, H. 2008. Recent species of the Family Candonidae (Ostracoda, Crustacea) from the ancient Lake Biwa, Central Japan. Journal of Natural History, 42, 2865-2922.
2. Pseudocandona atmeta Smith & Kamiya, 2015
Left side view of a female Pseudocandona atmeta, length about 1.2 mm.
External view of a male left valve of Pseudocandona atmeta, length 1227 microns.
External view of a male right valve of Pseudocandona atmeta, length 1202 microns.
Male sexual organ of Pseudocandona atmeta, length 439 microns.
- Additional figures in: Smith & Kamiya 2015.
- Habitat: Boggy areas with reeds and grasses.
- Mode of life: Benthic.
- Reproductive mode: Sexual.
- Known distribution: Aomori Prefecture, Japan.
- References:
- ⚬ Smith, R. J. & Kamiya, T. 2015. Four new species of the subfamily Candoninae (Crustacea, Ostracoda) from freshwater habitats in Japan. European Journal of Taxonomy, 136, 1-34.
3. Pseudocandona becca Smith & Kamiya, 2015
Left side view of a male Pseudocandona becca, length about 1.1 mm.
External view of a male left valve of Pseudocandona becca, length 1169 microns.
External view of a male right valve of Pseudocandona becca, length 1140 microns.
Male sexual organ Pseudocandona becca, length 376 microns.
- Additional figures in: Smith & Kamiya 2015.
- Habitat: Interstitial in sand.
- Mode of life: Benthic.
- Reproductive mode: Sexual.
- Known distribution: North-western part of Lake Biwa.
- References:
- ⚬ Smith, R. J. & Kamiya, T. 2015. Four new species of the subfamily Candoninae (Crustacea, Ostracoda) from freshwater habitats in Japan. European Journal of Taxonomy, 136, 1-34.
4. Pseudocandona falcula Smith & Kamiya, 2015
External view of a male left valve of Pseudocandona falcula, length 950 microns.
External view of a male right valve of Pseudocandona falcula, length 934 microns.
Male sexual organ Pseudocandona falcula, length 378 microns.
- Additional figures in: Smith & Kamiya 2015.
- Habitat: Root mats of willow trees, and marshy areas.
- Mode of life: Benthic.
- Reproductive mode: Sexual.
- Known distribution: Aomori Prefecture, and Lake Biwa, Shiga Prefecture.
- References:
- ⚬ Smith, R. J. & Kamiya, T. 2015. Four new species of the subfamily Candoninae (Crustacea, Ostracoda) from freshwater habitats in Japan. European Journal of Taxonomy, 136, 1-34.
5. Pseudocandona pratensis (Hartwig, 1901)
- Figures in: Meisch 2000; Karanovic 2013 (as Typhlocypris pratensis (Hartwig, 1901)), Tanaka et al. 2015.
- Habitat: In Japan reported from paddy fields (Tanaka et al. 2015). Elsewhere mainly found in temporary water bodies, but also ponds, lakes, rivers, brooks and springs (Meisch 2000).
- Mode of life: Benthic.
- Reproductive mode: Sexual.
- Known distribution: Shizuoka Prefecture (Tanaka et al. 2015). Elsewhere known from Europe (Meisch 2000) and Korea (Karanovic 2013, as Typhlocypris pratensis ).
- References:
- ⚬ Karanovic I. 2013. Earicandona, new genus and the first record of Typhlocypris pratensis (Crustacea, Ostracoda) from South Korea. Journal of Species Research, 2, 145-158.
- ⚬ Meisch, C. 2000. Freshwater Ostracoda of Western and Central Europe. In: Schwoerbel, J., Zwick, P., (Eds.), Süßwasserfauna von Mitteleuropa 8/3. Spektrum Akademischer Verlag, Heidelberg, Berlin 522 pp.
- ⚬ Tanaka, H., Kotorii, H., Yokozawa, K., Wakabayashi, F., Kimoto, K. & Sano, K. 2015. Distribution and occurrence of freshwater Ostracoda (Crustacea) from southwest region of Mt. Fuji. TAXA, Proceedings of the Japanese Society of Systematic Zoology, 38, 26-41. [In Japanese with English abstract.]
6. Pseudocandona tenuirostris Hiruta & Mawatari, 2013
Left side view of a male Pseudocandona tenuirostris, length about 1.1 mm.
Male sexual organ Pseudocandona tenuirostris, length 395 microns.
- Additional figures in: Hiruta & Mawatari 2013.
- Habitat: Marshy areas.
- Mode of life: Benthic.
- Reproductive mode: Sexual.
- Known distribution: Aomori Prefecture (Smith & Kamiya 2015), and Hokkaido (Matzke-Karasz et al. 2004 (as Pseudocandona rostrata); Hiruta & Mawatari 2013).
- References:
- ⚬ Hiruta, S. F. & Mawatari, S. F. 2013. Ostracods (Crustacea) from Sarobetsu Marsh, northern Hokkaido, Japan: taxonomy and phenology with description of Pseudocandona tenuirostris sp. nov. Species Diversity, 18, 57-74.
- ⚬ Matzke-Karasz, R, Smith, R. J. & Homma, M. 2004. Cyclocypris diebeli Absolon, 1973 (Ostracoda, Crustacea), extinct in Europe, extant in Japan. Journal of Natural History, 38 (13), 1635 - 1663.
- ⚬ Smith, R. J. & Kamiya, T. 2015. Four new species of the subfamily Candoninae (Crustacea, Ostracoda) from freshwater habitats in Japan. European Journal of Taxonomy, 136, 1-34.