Odostomia subangulata A. Adams, 1860

Qi, Lu, Xu, Biyang, Kong, Lingfeng & Li, Qi, 2023, Checklist of the micromolluscs in the intertidal zone of the Yellow Sea and Bohai Sea, China, Biodiversity Data Journal 11, pp. 105444-105444 : 105444

Odostomia subangulata A. Adams, 1860

Native status

Sucking body fluid of Crassostrea gigas on rocks in intertidal zones.

Distribution

North of China, Japan.

Notes

Megastomia tenera (A. Adams, 1860) very similar to Odostomia subangulata A. Adams, 1860 in shell characters, but differs in having palatal ridges in the inner lip.

Diagnosis

Shell minute (5.0 ± 0.12 mm in height, 2.3 ± 0.03 mm in width), conical, milky-white, moderately thick, solid (Fig. 16 ). Whorls about 6, each whorl nearly flat-sided, shoulder of each whorl feebly angulate. Sutures distinct, grooved. Protoconch immersed in first teleoconch whorl, rotated right. Umbilicus narrowly opened. Aperture simple, long-ovate, columella with fold, outer lip thin, curved.

Figures

Figure 16. Odostomia subangulata A. Adams, 1860.