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Donax variabilis
Donax variabilis Say, 1822
Variable coquina
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Family:  Donacidae (donax clams)
Max. size:  1.9 cm DL (male/unsexed); max. reported age: 1 years
Environment:  benthic; brackish; marine; depth range 0 - 11 m
Distribution:  Western Atlantic: North America, from New York to Texas and Mexico, throughout the Gulf of Mexico. The Sea of Marmara and the Mediterranean: Introduced in Egypt and Turkey. Tropical to subtropical.
Diagnosis:   
Biology:  Found in the intertidal zone on coarse-grained (Ref. 104171) sandy beaches (Refs. 104348, 104171). Some migrate up and down the beach with the tides (Ref. 104348). Actively migrates by jumping out of the sand and riding specific waves (Ref. 104171). Filter-feeder (Ref. 104245). Feeds on phytoplankton, algae, detritus, bacteria and other small suspended particles via its short siphons (Ref. 104246).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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