Alichovella kegelensis (Alichova, 1953)

Diagnosis (emended). Large, semioval to subquadrate biconvex shell, with equally convex valves in adults. Anterior commissure weakly parasulcate to undulating. Ornament fascicostellate to ramicostellate, with up to 90 costae and costellae; 6–9 costae and costellae intercalate with 2–5 capillae on 5 mm along anterior edge, 12–16 fine equal-­sized costellae on 5 mm of postero­lateral edges. Posterior costae subparallel to posterior edges of valve, inter spaces on dorsal valve.