Superfamily: Cypridoidea Baird, 1845
Family: Candonidae Kaufmann, 1900
Subfamily: Candoninae Kaufmann, 1900
Two species have been reported from Japan:
Right side view of a female Cryptocandona brehmi, length 0.85mm.
External view of a female left valve of Cryptocandona brehmi, length 883 microns.
External view of a female left valve of Cryptocandona tsukagoshii, length 708 microns.
Photograph of the type locality: a tributary of the Yasu River, Tsuchiyama-cho, Koka, Shiga Prefecture, N35º 00’ 18.1", E136º 22’ 26.7", altitude 608 m (29 January 2010).