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Cardiidae 8 species (18 shells in total)

Phylum      : Mollusca
 Class       : Bivalvia 
  Subclass    : Heterodonta 
   Infraclass  : Euheterodonta 
    Superorder  : Imparidentia 
     Order       : Cardiida 
      Superfamily : Cardioidea 
       Family      : Cardiidae 
    

Common name : elongated clam, magnum cockle

Aspect : the closed shell seen from the side has a heart shape (hence Cardiidae). Bulging shell, with equal and symmetrical valves, protruding hooks and sculpture mainly radiant. External ligament. Characteristic hinge, the teeth of which bend outwards and form a cross-shaped device under the hooks when fitting together. Equal adductor muscles. Short siphon (no pallial sinus). Long and powerful foot, bent.

Feeding : filtration of microorganisms in suspension

Environment : soft, sandy or silted bottoms. Due to the brevity of their siphons, they are located just below the surface of the sediment. cold and hot seas, up to 300 m deep (Acanthocardia echinata)

Acanthocardia echinata (Linnaeus, 1758) (Subfamily Lymnocardiinae)

Acanthocardia echinata

Acanthocardia tuberculata (Linnaeus, 1758) (Subfamily Lymnocardiinae)

Acanthocardia tuberculata

Acrosterigma magnum (Linnaeus, 1758) (Subfamily Trachycardiinae)

Acrosterigma magnum

Cerastoderma edule (Linnaeus, 1758) (Subfamily Lymnocardiinae)

Cerastoderma edule

Hippopus hippopus (Linnaeus, 1758) (Subfamily Tridacninae)

Hippopus hippopus

Lunulicardia retusa auricula (Niebuhr, 1775) (Subfamily Fraginae)

Lunulicardia retusa auricula

Tridacna maxima (Röding, 1798) (Subfamily Tridacninae)

Tridacna maxima

Vasticardium pectiniforme (Born, 1780) (Subfamily Trachycardiinae)

Vasticardium pectiniforme
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