Solvin Zankl / Opercula of Turban snail (Bolma rugosa) this is the lid attached to the foot of a snail which enables the animal to completely close its shell. Diagonal of frame approx 8 mm

Solvin Zankl / Opercula of Turban snail (Bolma rugosa) this is the lid attached to the foot of a snail which enables the animal to completely close its shell. Diagonal of frame approx 8 mm

Sebastian Kennerknecht / California Mussel (Mytilus californianus) clusters, Barnacles (Balanus sp), Black Turban Snails (Tegula funebralis), Rockweed (Fucus sp), and Sea Lettuce (Ulva sp) in high tide zone, Santa Cruz, Monte...

Jeff Rotman / Tapestry turban snail {Turbo petholatus} feeds on algae covering coral, Red Sea