Patellidae
Patellidae is a taxonomic family of true limpets, marine gastropod molluscs in the superfamily Patelloidea.
The largest known limpet in the world is Scutellastra mexicana that can reach in length.
Taxonomy
A cladogram showing phylogenic relations of Patellogastropoda based on molecular phylogeny research by Nakano & Ozawa :Genera
There are four extant genera in the family Patellidae:- Cymbula H. & A. Adams, 1854
- Helcion Montfort, 1810
- Patella Linnaeus, 1758
- Scutellastra H. Adams & A. Adams, 1854
- † Berlieria de Loriol, 1903
- † Proscutum P. Fischer, 1885
Synonyms
- Ansates G.B. Sowerby II , 1839: synonym of Patella Linnaeus, 1758
- Laevipatella Pallary, 1920: synonym of Cymbula H. Adams & A. Adams, 1854
- Patellanax Iredale, 1924: synonym of Scutellastra H. Adams & A. Adams, 1854
- Patellidea Thiele, 1891: synonym of Scutellastra H. Adams & A. Adams, 1854
- Patellona Thiele, 1891: synonym of Cymbula H. Adams & A. Adams, 1854
- Patina Gray, 1847: synonym of Patella Linnaeus, 1758
- Patinastra Thiele, 1891: synonym of Helcion Montfort, 1810
- Penepatella Iredale, 1929: synonym of Scutellastra H. Adams & A. Adams, 1854
Human uses
A study of Patella caerulea found that this limpet reduced the cover of algae and barnacles on steel panels suspended in sea water in a commercial port, suggesting that the limpet could be used to inhibit fouling of ship hulls.