Novocrania turbinata (Poli, 1795)

Dorsal valve exterior commonly minutely spinose or pustulose, dorsal valve interior with anterior adductor muscles and support structure attached to raised pedestals, small anterior muscles attached to median process, ventral valve has radial canals, is mostly impunctate, the calcitic rostellum has a slim spike, the ventral anterior adductor muscle scars are calcitic or uncommonly latent.