SEM Photograph: (Borne and Cronin, ms, pl. 2, fig. 4) Scale is 0.08 mm. (Locality CJ89-20-11: Río Banano, Limón Province, Costa Rica; Río Banano Formation). Right valve.
Morphologic Description:
Holotype: Hancock Museum, Newcastle-Upon-Tyne, England, U.K. (Colon Harbor, Panama, Recent).
Distribution: