Rolandiella umbilicata

Rolandiella umbilicata
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Size: 3.5 cm

Distribution: All SA coastal and gulf waters

Habitat: Rocky reef and coast on rocks

Depth: Shallow subtidal

Rolandiella umbilicata
Rolandiella umbilicata

This snail is often heavily encrusted. It has a very thick shell, with further thickenings, or varices, occurring at regular intervals, although these are often eroded smooth. The shell, when visible, is white, while the animal is a mustard yellow. It closely resembles Bedeva flindersi, although it does not have as pronounced ribbing, and the short but deep anterior canal is distinctive.