| Authors(s) | Nomura, S. and Zinbi, N. |
| Year | 1935 |
| Title | Mollusca from the Yanagawa shell-beds in the Hulusima Basin, northeast Honsyñ. Japan Saito Ho-on Kai Mus. Bull. (Sendai) 6: 151-192, pl. 15. |
| Authors(s) | Nomura, S. and Zinbi, N. |
| Year | 1935 |
| Title | Mollusca from the Yanagawa shell-beds in the Hulusima Basin, northeast Honsyñ. Japan Saito Ho-on Kai Mus. Bull. (Sendai) 6: 151-192, pl. 15. |