Mercenaria campechiensis (Dall, 1902)
Southern hardshell clam
Mercenaria campechiensis
photo by FAO

Family:  Veneridae (venus clams)
Max. size: 
Environment:  benthic; marine; depth range 0 - 20 m
Distribution:  Western Central Atlantic.
Diagnosis:  Shell thick, more inflated than in Mercenaria mercenaria, ovate-trigonal. Sculpture of irregular lines, more separated than in M. mercenaria. Lines never absent in middle of valve. Lunule as long as wide. Colour: dull white to grey, internally sometimes stained with purple.
Biology:  One of the most commercially exploited species in the area. Species is harvested by digging in shallow water. Also collected by recreational fishermen by "treading" (probing with bare feet), and in deeper water by bull rakes and clam tongs. Mechanical harvesting not permitted in Florida. Species is high in protein and virtually fat-free. This species may form hybrids with individuals of M. mercenaria in the southeastern USA (Ref. 344). Combination depth range: min from literature, max from estimate.
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:  Known from northern Cuba (Ref. 344).

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