Description: Small to medium-sized globular cell. Epitheca hemispherical; hypotheca asymmetrical. Ventral pore round, occupying edges of 1' and 4'. 1' narrow.
Type Locality: Jogashima Island, Kanagawa, Japan
Authority: Kita and Fujuyo (1988)
References: Bull Plan Soc Jap 35(1): 1988; Tomas, C.R. (Eds), pp. 387-584. San Diego: Academic Press (1997)