Eufenella ichikawensis (Yokoyama, 1927)
| 1973. | Eufenella ichikawensis (Yokoyama, 1927) Lectotype Oyama, K. 1973 p. 24, pl. 5, fig. 1a, b |
| 1954. | Eufenella ichikawensis (Yokoyama) Lectotype Taki, I. & Oyama, K. 1954 pl. 48, fig. 5 |
| 1927. | Rissoa (Cingula) ichikawensis Yokoyama, 1927 Syntype Yokoyama, M. 1927b p. 451, pl. 51, fig. 5 |
| Condition: | Missing |
| Taxonomy: | Mollusca: Gastropoda: Diastomatidae: |
| Geologic Time: | Cenozoic: Holocene: |
| Locality: | Chiba: Ichikawa: Ichikawa: |
| Oyama, K., 1973: Revision of Matajiro Yokoyama's type Mollusca from the Tertiary and Quaternary of the Kanto area. Palaeontological Society of Japan, Special Papers, no. 17, pp. 1–148, pls. 1–57. (Reference No. 0411) |
| Taki, I. and Oyama, K., 1954: Matajiro Yokoyama's the Pliocene and later faunas from the Kwanto region in Japan. Palaeontological Society of Japan, Special Papers, no. 2, pp. 1–68, pls. 1–49. (Reference No. 0441) |
| Yokoyama, M., 1927b: Mollusca from the upper Musashino of western Shimosa and southern Musashi. Journal of the Faculty of Science, Imperial University of Tokyo, Section 2, vol. 1, pt. 10, pp. 439–457, pls. 51–52. (Reference No. 0489) |
 |
| Ichikawa, T., 1983, no. 9, p. 152. |
| Ichikawa, T., 1983, no. 9, p. 219. |
| Ichikawa, T., 1983, no. 9, p. 356. |
