''Patella caerulea'', is a species of

limpet Limpets are a group of aquatic snails with a conical gastropod shell, shell shape (patelliform) and a strong, muscular foot. This general category of conical shell is known as "patelliform" (dish-shaped). Existing within the class Gastropoda, ...

in the family

Patellidae Patellidae is a taxonomic family of true limpets, marine gastropod molluscs in the superfamily Patelloidea. (The superfamily Patelloidea should not be confused with the similar-sounding genus of true limpets '' Patelloida'' which is in the ...

. It is known by the common names Mediterranean limpet and rayed Mediterranean limpet.''Patella caerulea'' Linnaeus, 1758.
''In'': MolluscaBase (2015). Accessed through: World Register of Marine Species. It is native to the

Mediterranean Sea The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...

Description

The size of the shell varies between 20 mm and 72 mm. The thin shell is depressed, spreading, usually more or less distinctly 6 or 7 angled. The riblets rather fine and notably unequal.G.W. Tryon (1891), Manual of conchology, structural and systematic: with illustrations of the species File:Patella_caerulea_01.JPG, ''Patella caerulea'' File:Patella caerulea f fragilis 01.jpg, ''Patella caerulea'' f. ''fragilis'' File:Patella caerulea f stellata 01.jpg, ''Patella caerulea'' f. ''stellata''

Distribution

This species occurs in the

; in the Atlantic Ocean off the

Canary Islands The Canary Islands (; ) or Canaries are an archipelago in the Atlantic Ocean and the southernmost Autonomous communities of Spain, Autonomous Community of Spain. They are located in the northwest of Africa, with the closest point to the cont ...

Madeira Madeira ( ; ), officially the Autonomous Region of Madeira (), is an autonomous Regions of Portugal, autonomous region of Portugal. It is an archipelago situated in the North Atlantic Ocean, in the region of Macaronesia, just under north of ...

and the

Azores The Azores ( , , ; , ), officially the Autonomous Region of the Azores (), is one of the two autonomous regions of Portugal (along with Madeira). It is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atl ...

References

Linnaeus, C. (1758). Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Editio decima, reformata. Laurentius Salvius: Holmiae. ii, 824 pp
* da Costa E.M., 1771: ''Conchology, or natural history of shells''; London 26 pp., 12 pls. * Gmelin J. F., 1791: ''Carli Linnaei systema Naturae per regna tria naturae. Editio decimatertia, aucta, reformata, Vermes Testacea'' Leipzig ipsiae1 (6): 3021-3910 * Röding P. F., 1798: ''Museum Boltenianum sive Catalogus Cimeliorum e tribus regnis naturae quae olim collegerat Joa. Fried. Bolten M. D. p. d. pars secunda continens Conchylia sive Testacea univalvia, bivalvia et multivalvia'' pp. VIII + 199 * Lamarck ( .-B. M.de), 1815-1822: ''Histoire naturelle des animaux sans vertèbres''; Paris ol. 5: Paris, Deterville/Verdière ol. 6 published by the Author7 vol. molluschi sono compresi nei vol. 5–7. Vol. 5 (Les Conchiferes): 612 pp. [25 luglio 1818 Vol. 6 (1) (Suite): 343 pp. [1819">5 luglio 1818"> molluschi sono compresi nei vol. 5–7. Vol. 5 (Les Conchiferes): 612 pp. [25 luglio 1818 Vol. 6 (1) (Suite): 343 pp. [1819 Vol. 6 (2) (Suite): 232 pp. [1822]. Vol. 7: (Suite): 711 pp. [1822 * Risso A., 1826-1827: ''Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes''; Paris, Levrault Vol. 1: XII + 448 + 1 carta 826 Vol. 2: VII + 482 + 8 pl. (fiori) ovembre 1827 Vol. 3: XVI + 480 + 14 pl. (pesci) ettembre 1827 Vol. 4: IV + 439 + 12 pl. (molluschi) ovembre 1826 Vol. 5: VIII + 400 + 10 pl. (altri invertebrati) ovembre 1827 * Philippi R. A., 1836: ''Enumeratio molluscorum Siciliae cum viventium tum in tellure tertiaria fossilium, quae in itinere suo observavit. Vol. 1''; Schropp, Berlin erolinixiv + 267 p., pl. 1-12 * Potiez V. L. V. & Michaud A. L. G., 1838-1844: ''Galerie des Mollusques ou catalogue méthodique, descriptif et raisonné des Mollusques et Coquilles du Muséum de Douai''; Paris Vol. 1: pp. 560 + XXXV 838 Vol. 2: pp. XXXVI-XLIV + 305 844 Atlante: pp. 79 + 70 pl. * Anton H. E., 1839: ''Verzeichniss der Conchylien welche sich in der Sammlung von Hermann Eduard Anton befinden''; Halle XVI + 110 p * Nardo D., 1847: ''Sinonimia moderna delle specie registrate nell’opera intitolata: Descrizione de’Crostacei, de’Testacei e de’Pesci che abitano le Lagune e Golfo Veneto, rappresentati in figure, a chiaroscuro ed a colori dall' Abate Stefano Chiereghini Ven. Clodiense applicata per commissione governativa''; Venezia pp. i-xi, 1-127 * Monterosato T. A. (di), 1888-1889: ''Molluschi del Porto di Palermo. Specie e varietà''; Bullettino della Società Malacologica Italiana, Pisa 13 (1888 889?: 161-180 14 (1889): 75-81 * Locard A., 1892: ''Les coquilles marines des côtes de France''; Paris, J.B. Baillière & fils pp. 384.

External links

* {{Taxonbar, from=Q7144419 Patellidae Molluscs of the Mediterranean Sea Marine molluscs of Africa Marine molluscs of Europe Gastropods described in 1758 Taxa named by Carl Linnaeus