Shikama, T., 1970. On Some Noteworthy Marine Gastropoda from Southwestern Japan (II). Science Reports of the Yokohama National University, sect. 2. no. 16: 19 -27 .
New Species-Group Names:
- kawanishii Shikama, 1970. p. 26. pl. 1. f. 28. 29.
-
sazanka Shikama, 1970. p. 25. pl. 1. f. 24. 25.
- tosaensis Shikama, 1970. p. 25. pl. 1. f. 22. 23.
- wistaria Shikama, 1970. p. 24. textf. 3. 4.