Fissurella


Fissurella is a genus of small to medium-sized sea snails or limpets, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.

Description

The size of the body does not exceed or marginally exceeds that of the shell. The outer radular plate has four cusps. The propodium has no tentacles.

Ecology

Like all other fissurellids, Fissurella species are herbivores, using the radula to scrape up algae from the surface of rocks.
Water for respiration and excretion is drawn in under the edge of the shell and exits through the "keyhole" at the apex.

Species

According to the World Register of Marine Species, the following species with accepted names are included within the genus Fissurella
The Indo-Pacific Molluscan Database adds the following species to the list
The following species are also mentioned by . This list may contain synonyms.
;Species brought into synonymy: