Stenothyra glabra A. Adams, 1861

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

publication ID

https://dx.doi.org/10.3897/BDJ.11.e105444

persistent identifier

https://treatment.plazi.org/id/C33ADBFA-E72F-52F4-9B3D-DF60360F7946

treatment provided by

Biodiversity Data Journal by Pensoft (2023-07-08 02:59:42)

scientific name

Stenothyra glabra A. Adams, 1861
status

 

Stenothyra glabra A. Adams, 1861 View in CoL View at ENA

Native status

Inhabiting the surface of mud flats or attaching to the under surface of floating leaves in freshwater estuaries.

Distribution

Yellow Sea and Bohai Sea of China, Korea and Japan.

Notes

The type locality of Stenothyra glabra A. Adams, 1861 is "estuary of the Pei-ho, North China", which is on the coast of the Bohai Sea. One of the localities in this study, Yellow River Estuary, is adjacent to the type locality. Moreover, the shells exhibit remarkable similarity in terms of size, shape, and microsculpture when compared to the descriptions provided by Adams (1861), Yen (1939), Yen (1942), and Kantor and Sysoev (2006), although the available photograph of the holotype is lacking ( Agatsuma et al. 2005). We believe that specimens collected in this study belong to common species from the coasts of the Yellow Sea and Bohai Sea in China and are conspecific with the type material.

Diagnosis

Shell minute (2.1 ± 0.14 mm in length, 1.5 ± 0.07 mm in width), ovate-conic, rather thick, dorso-ventrically compressed, with rounded to angled inflation of last whorl (Fig. 8 View Figure 8 ). Up to 5 whorls including protoconch, with less convex whorls and sutures moderately deep. Surface smooth, yellowish-brown, sculpture not dotted lines, but continuous spiral grooves. The aperture abruptly descending, contracted and near circular; peristome continuous, showing a weak triangular area above; outer lip round with marked grooves. Operculum ovate, yellowish, translucent, with very weak angulation aligning with posterior apex of aperture; exterior surface with central paucispiral nucleus close to the inner lip. Protoconch dome-shaped, smooth, 1-3/4-2 whorls; some pits in the first whorl.

Adams, A., 1861. On some new genera and species of Mollusca from the North of China and Japan. Annals and Magazine of Natural History 8 (3): 243

Agatsuma, Y., Kuwahara, Y., Taniguchi, K., 2005. Life cycle of Dilophus okamurae (Phaeophyceae) and its associated invertebrate fauna in Onagawa Bay, Japan. Fisheries Science 71 (5): 107 - 111

Kantor, Y. I., Sysoev, A., 2006. Marine and brackish-water Gastropoda of Russia and adjacent countries: an illustrated catalogue. KMK Scientific Press Ltd, Moscow, Russia

Yen, T. C., 1939. Die Chinesischen Land-und Suesswasser-Gastropoden des Natur-Museums Senckenberg. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, Frankfurt am Main, Germany

Yen, T. C., 1942. A review of Chinese gastropods in the British Museum. Journal of Molluscan Studies 24 (5-6): 170 - 289

Gallery Image

Figure 8. Stenothyra glabra A. Adams, 1861.