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Circomphalus 
Summary
Circomphalus is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, the venus clams.
| Circomphalus Temporal range:
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| Valves of Circomphalus foliaceolamellosus | |
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| Fossil valve of Circomphalus foliaceolamellosus from Pliocene of Italy | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Venerida |
| Superfamily: | Veneroidea |
| Family: | Veneridae |
| Genus: | Circomphalus Mörch, 1853 |
| Species | |
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See text. | |
Fossil records edit
The genus Circomphalus is known from the Miocene to the Recent periods (age range: from 15.97 to 0.0 million years ago).[1]
Species edit
Species within this genus, according to ITIS, include:[2]
- Circomphalus callimorphus (Dall, 1902)
- Circomphalus casina (Linnaeus, 1758)
- Circomphalus fordi (Yates, 1890)
- Circomphalus strigillinus (Dall, 1902)
According to the World Register of Marine Species, the species are:[3]
- Circomphalus disjectus (Perry, 1811)
- Circomphalus foliaceolamellosus (Dillwyn, 1817)
- Circomphalus hiraseanus (Kuroda, 1930)
- Circomphalus yatei (Gray, 1835)