Barleeia angustata Pilsbry, 1901

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

Barleeia angustata Pilsbry, 1901

Native status

Lives on algae in intertidal and sublittoral zones.

Distribution

China, Japan, Australia.

Notes

The species originally belonged to Rissoidae . Rissoina dunedini Grabau & S. G. King, 1928 and Rissoina nelsoni Grabau & S. G. King, 1928 were the synonyms of this species ( Zhang et al. 2016). There are shell colour variations, lightly coloured forms with distinct brown spiral bands in warm waters.

Diagnosis

Shell minute (2.5 ± 0.18 mm in length, 1.3 ± 0.09 mm in width), elongate conical, solid (Fig. 5 ). Whorls about 5, with high spire, periphery weakly angulate in immature individuals, round when matured. Suture distinct. Shell glossy and smooth, colour uniformly reddish-brown in northern localities. Protoconch with several pits on the surface. Aperture small, peristome simple, rounded-ovate, outer lip thin, the columellar and parietal margins somewhat thickened. No umbilicus.

Figures

Figure 5. Barleeia angustata (Pilsbry, 1901).