Species Megayoldia japonica (A. Adams & Reeve, 1850)/ベッコウキララガイ
Species Megayoldia lischkei (E. A. Smith, 1885)/オオベッコウキララガイ
Species Megayoldia martyria (Dall, 1897)
Species Megayoldia montereyensis (Dall, 1893)
Species Megayoldia thraciaeformis (Storer, 1838) /フネソデガイ