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Glycymerididae 2 species (2 shells in total)

Phylum      : Mollusca
 Class       : Bivalvia 
  Subclass    : Pteriomorphia 
   Order       : Arcida 
    Superfamily : Arcoidea 
     Family      : Glycymerididae 
    

Common name : bittersweet clam

Aspect : thick shell with equal and symmetrical valves of rounded outline. Brownish external surface, often with mottling on a light background. Dark brown periostracum, finely hairy. Hooks slightly turned towards the back, separated from the dorsal margin by a surface decorated with chevrons and covered with ligaments. Arched hinge, with a series of small transverse teeth diverging outwards. Two almost equal adductor imprints, pale line without sinus

Feeding : filtration of microorganisms in suspension

Environment : various softsediment bottoms up to 70m deep

Glycymeris da Costa, 1778

Glycymeris

Tucetona pectunculus (Linnaeus, 1758)

Tucetona pectunculus
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