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Patellidae 3 species (3 shells in total)

Phylum      : Mollusca
 Class       : Gastropoda 
  Subclass    : Patellogastropoda 
   Superfamily : Patelloidea 
    Family      : Patellidae 
    

Common name : true limpets

Aspect : conical shell more or less flattened (species often remaining out of water at low tide have higher shells allowing them to have a larger reserve of water to live while waiting for the return of the tide). Smooth or streaked with radial ribs.

Feeding : herbivore (algae). the teeth of their radula are made of a material that has the record of resistance to stretching of all natural materials (spider silk thread) or synthetic thread (Kevlar).

Environment : fixed on the rocks in the intertidal zones

Patella caerulea Linnaeus, 1758

Patella caerulea : (Glenans archipelago)

Patella depressa Pennant, 1777

Patella depressa : (Glenans archipelago)

Patella vulgata Linnaeus, 1758

Patella vulgata : (Glenans archipelago)
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