Jump to content

Fissurellidae: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
GrahamBould (talk | contribs)
mNo edit summary
GrahamBould (talk | contribs)
mNo edit summary
Line 65: Line 65:
** ''[[Montfortula rugosa]]'' <small>([[Quoy]] and [[Gaimard]], 1834)</small>
** ''[[Montfortula rugosa]]'' <small>([[Quoy]] and [[Gaimard]], 1834)</small>
* Genus ''[[Montfortulana]]'' <small>Habe, 1961</small>
* Genus ''[[Montfortulana]]'' <small>Habe, 1961</small>
* Genus ''[[Nesta]]'' <small>H. Adams, 1870</small>
* Genus ''[[Nesta]]'' <small>H. Adams, 1870</small>
* Genus ''[[Notomella]]'' <small>Cotton, 1957</small>
* Genus ''[[Notomella]]'' <small>Cotton, 1957</small>
* Genus ''[[Puncturella]]'' <small>R. T. Lowe, 1827</small>
* Genus ''[[Puncturella]]'' <small>R. T. Lowe, 1827</small>

Revision as of 05:33, 23 February 2009

Keyhole limpet
Diodora cayenensis
Scientific classification
Kingdom:
Phylum:
Class:
Superorder:
Superfamily:
Family:
Fissurellidae

Fleming, 1822
Genera and species

See text.

Keyhole limpet is the common name for the taxonomic family Fissurellidae, a group of limpet-like sea snails, marine gastropod molluscs in the superfamily Fissurelloidea.

Distribution

Keyhole limpets live world-wide: in cold waters, warm waters, and in tropical waters.

Habitat

Fissurellids live on and under rocks, in the lower intertidal zones and also in deeper waters.

Diodora italica from the Pliocene of Cyprus.

Shell description

Keyhole limpets somewhat resemble true limpets because of their simple conical shells, but in reality they are not closely related to true limpets, which are in the order Patellogastropoda.

For respiration, the shells of fissurellids have an apical perforation, marginal slit, notch, or internal groove. This allows a direct exit of exhalant water currents from the mantle cavity.

In addition, keyhole limpets differ in several other ways both internally and externally from true limpets.

Genera (and some species) within the family Fissurellidae

References