Phylum :MolluscaClass :⤷BivalviaSubclass :⤷AutobranchiaInfraclass :⤷HeteroconchiaSubterclass :⤷EuheterodontaSuperorder :⤷ImparidentiaOrder :⤷CardiidaSuperfamily :⤷TellinoideaFamily :⤷Donacidae
Common name : wedge clams, bean clams, or coquinas
Aspect : wedge-shaped or ovate-triangular in outline; Posterior end truncated or rounded, anterior end elongated and pointed; equivalve but often inequilateral (hinge not centered); hinge with 2 small cardinal teeth in each valve; size range from 2 to 6 cm; smooth surface with fine concentric growth lines; vividly colored; often glossy and iridescent interior
Feeding : filtration of microorganisms in suspension (phytoplankton, zooplankton, detritus, and organic particles)
Environment : Abundant in Atlantic, Mediterranean and Indo-Pacific; on sandy beaches of marine coasts, in the intertidal and shallow subtidal zones
