1. Cerithiopsis tubercularis. Foot bends at transverse groove across middle. Eye on thickened base of thin tentacle. On fine red seaweed growing on stone among muddy sand. Menai Strait, Wales, Aug. 2010.
2. Cerithiopsis tubercularis. Foot bends at transverse groove across middle. Eye on thickened base of thin tentacle. On fine red seaweed growing on stone among muddy sand. Menai Strait, Wales, Aug. 2010.

Cerithiopsis tubercularis. Foot bends at transverse groove across middle. Eye on thickened base of thin tentacle. On fine red seaweed growing on stone among muddy sand. Menai Strait, Wales, Aug. 2010.

Cerithiopsis tubercularis

© I.F. Smith

Cerithiopsis tubercularis

© I.F. Smith