Kingdom Animalia Superfamily Fissurelloidea Scientific name Fissurella Rank Genus | Phylum Mollusca Family Fissurellidae Higher classification Fissurellidae | |
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Similar Fissurellidae, Molluscs, Gastropods, Diodora, Fissurella nubecula | ||
Fissurella is a genus of small to medium-sized sea snails or limpets, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.
Contents
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 (= the anterior end of the foot) 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 (WoRMS), 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 Schooner specimen shells. This list may contain synonyms.