Circomphalus Explained

Circomphalus is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, the venus clams.

Fossil records

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

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)

Notes and References

1. http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=17479# Fossilworks
2. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=81607 ITIS
3. http://www.marinespecies.org/aphia.php?p=taxdetails&id=152411 WoRMS