SEM Photograph: (Bold, 1988, pl. 1, fig. 16) Scale is 0.25 mm. Specimen HVH 10497 (NMB Locality 16970: Río Cana, Gurabo Formation). Right valve.
Morphologic Description: An elongate-ovate species with strongly convex dorsal and ventral margins; anterior end very obliquely-rounded, posterior end somewhat knoblike.
Holotype: GIRU S 12972 (Location: Lomas La Cruz, Santiago de Cuba, Cuba, La Cruz Formation, Pliocene).
Distribution: