SEM Photograph: (Borne and Cronin, ms, pl. 3, fig. 3) Scale is 0.08 mm. (Locality CJ89-35-01: Santa Eduviges Subdivision, Limón Province, Costa Rica; Moin Formation). Left valve, female.
Morphologic Description: A species with high crested system of median ridges and heavy recticulation, pronounced dorsal and ventral ridges.
Holotype: Hancock Museum, Newcastle-Upon-Tyne, England, U.K. (Colon Harbor, Panama, Recent).