Paucicrura plana Hints, 1975

Shell of moderate size, unequally biconvex or planoconvex. The length of the hinge-line corresponds to or is slightly shorter than the width of shell. Trilobed cardinal process massive; socket plates well defined. Radial ornamentation consisting of fine costellae, varying from 5 to 7 per 2 mm at 5 mm anterior of dorsal umbo.