Assiminea japonica is a species of small operculate snail, a marine gastropod mollusc or micromollusc in the family Assimineidae.
Description
The length of the shell attains 7 mm, its diameter 5 mm.
(Original description in Latin) The shell is lacks an umbilicus and convexly conical. It is rather solid, striate, and lacks any impressed spiral lines. The color is blackish-olive. It has 4ý rather convex whorls, which are separated by a sufficiently deep suture. The upper whorls are eroded. The body whorl is faintly angulate, and its base is slightly convex. The aperture is moderately oblique and pear-shaped. It is sharp above. The peristome is blunt and straight. The inner lip is thickened and whitish.
Distribution
This terrestrial species occurs in brackish waters in Japan and Korea.
References
- Habe, T. (1942). Classification of Japanese Assimineidae. Venus. 12(1âÂÂ2): 32âÂÂ56, pls 1âÂÂ4. page(s): 39, pl. 1, fig. 2; pl. 4, fig. 13
- Fukuda H. & Hasegawa K. (2017). Family Assimineidae. Pp. 813âÂÂ816, in: T. Okutani (ed.), Marine Mollusks in Japan, ed. 2. 2 vols. Tokai University Press. 1375 pp
- Tashiro, M.; Tomiyama, K.; Morino, H. (2001). Distribution of the Brackish Water Snail, Assiminea japonicñ Martens (Gastropoda: Assimineidae) along Hinuma Water System, Middle Japan, with a Comparison of Population Structure between Observation Sites. Venus (Journal of the Malacological Society of Japan). 60 (1âÂÂ2): 79âÂÂ9
- Okutani T., ed. (2000) Marine mollusks in Japan. Tokai University Press. 1173 pp.
- Liu, J.Y. [Ruiyu] (ed.). (2008). [Checklist of marine biota of China seas]. China Science Press. 1267 pp.
External links