The shell of this species can be distinguished from the shell of "Crepidula adunca" by:* Its larger size,* The apex is low and near the margin of the shell, curved to one side and not markedly hooked (rather than high, hooked and centrally placed),* The interior shelf is notched at the ends, rather than curved forward at both ends, and* The periostracum is more prominent.
The vỏ ốc this species can be distinguished from the vỏ ốc "Crepidula adunca" by:* Its larger size,* The apex is low and near the margin of the shell, curved to one side and not markedly hooked (rather than high, hooked and centrally placed),* The interior shelf is notched at the ends, rather than curved forward at both ends, và* The periostracum is more prominent.