Rissoina vincentiana

Rissoina vincentiana
image_search Terms and anatomy

Size: 1.2 cm

Distribution: All SA coastal and gulf waters

Habitat: Rocky reef and coast, under rocks or amongst seaweed

Depth: Intertidal to 10+ metres

This white to fawn snail is small, and found under rocks both intertidally and subtidally. It has an elongated, relatively straight or slightly convex spire, and weak axial ribbing that becomes even weaker, or is absent, from the lower whorls. It has a D-shaped aperture, with a thickened outer lip. This species closely resembles its relative, Rissoina fasciata, but has a less convex spire and weaker ribbing, usually absent in the lower whorls.