Acanthocardia spinosa

Acanthocardia spinosa, the sand cockle, is a species of saltwater clams, marine bivalve molluscs in the family Cardiidae. The genus Acanthocardia is present from the Upper Oligocene to the Recent.

Acanthocardia spinosa
Shell of Acanthocardia spinosa from Apulia at the Museo Civico di Storia Naturale di Milano
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Cardiida
Family: Cardiidae
Genus: Acanthocardia
Species:
A. spinosa
Binomial name
Acanthocardia spinosa
(Lightfoot, 1786)
Synonyms
  • Acanthocardia erinaceus Lamarck
  • Cardium erinaceum Lamarck, 1819
  • Cardium erinaceum var. alba Monterosato, 1872

Description

The shell of Acanthocardia spinosa can reach a size of 60–95 mm. This shell is robust, round with a heart-shaped profile, equivalve and inflated, with crenulated margins. The surface shows thick narrowly spaced radial ribs, with rows of pronounced thorny hooks. The basic external coloration is usually pale brown; the interior is white.

Distribution and habitat

Acanthocardia spinosa can be found in the Mediterranean Sea. This species is present in sand and mud, from low waters to 120 m. Like almost all bivalves, these mollusks are phytoplankton feeders.

References

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