Fissurellidae

Family: Fissurellidae

Group: Marine Invertebrate, Species

Scientific Name	Common Name	Summary
Diodora aspera	Rough Keyhole Limpet	The dark rays on the shell of this species make it distinct from all other local keyhole limpets. this limpet is often beachcombed, or found at negative tides on rocks.
Fissurellidea bimaculata	Two-spotted keyhole limpet	This pretty keyhole limpet sometimes doesn't look much like a limpet because its mantle may cover the entire shell. However, even then there is a characteristic little crater located apically. This limpet may be a predator on Marine vomit (Didemnum vexillum) in Whiting Harbor, near Sitka.