The following species have drifted from south-eastern North America on flotsam via the Gulf Stream, usually on Stone crab traps, fishing marker floats or fishing rope and have washed-up in the UK.
Chama macerophylla Gmelin, 1791 - Leafy jewel box clam or Leafy jewelbox (non-native species)
Chama sarda Reeve, 1847 - Cherry jewel box clam or Cherry jewelbox (non-native species)
Gulf of Mexico / Florida species to confirm ID
Chama species to identify (1) - Jewel box clam (on fishing rope, Gwithian, Cornwall. 14.01.16).
Chama species to identify (2) - Jewel box clam (on fishing rope, Gwithian, Cornwall. 14.01.16).
Chama species to identify (3) - Jewel box clam (on fishing rope, Gwithian, Cornwall. 14.01.16).
European species of Chama, Jewel boxes.
Chama gryphoides Linnaeus, 1758 - A Jewel box clam
Non-native invasive species of Chama, Jewel box, found in the Eastern Mediterranean.
Chama brassica Reeve, 1847 - A Jewel box clam
Chama pacifica Broderip, 1835 - A Jewel box clam
Pacific species of Jewel boxes
Chama lazarus Linnaeus, 1758 - Lazarus jewel box clam
Chama ruderalis Lamarck, 1819 - A Jewel box clam
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Other members of the family Chamidae
Arcinella
Arcinella cornuta Conrad, 1866
- Florida spiny jewelbox (Florida, USA)