S.  Higo, Callomon, P., and Goto, Y., Catalogue and bibliography of the marine shell-bearing Mollusca of Japan: Gastropoda, Bivalvia, Polyplacophora, Scaphopoda. Japan: Elle Scientific Publications, 1999, p. 749.

S.  Higo, Callomon, P., and Goto, Y., Catalogue and bibliography of the marine shell-bearing Mollusca of Japan: Gastropoda, Bivalvia, Polyplacophora, Scaphopoda. Japan: Elle Scientific Publications, 1999, p. 749.

S.  Higo, Callomon, P., and Goto, Y., Catalogue and bibliography of the marine shell-bearing Mollusca of Japan: Gastropoda, Bivalvia, Polyplacophora, Scaphopoda. Type figures. Japan: Elle Scientific Publications, 2001, p. 208.