THE FUNCTIONAL-MORPHOLOGY AND BIOLOGY OF PANDORA-FILOSA (CARPENTER, 1864) (BIVALVIA, ANOMALODESMATA, PANDORACEA)

In terms of shell form, internal anatomy, and burrowing behavior, Pand ora filosa is similar to other members of the genus. Hinge dentition v aries interspecifically being like that of eastern but unlike that of western Atlantic species. A rotation of the lyonsiid-like ligament see n in some larger species of Pandora is lacking and can be correlated w ith less lateral compression. The burrowing behavior of P. filosa indi cates that it is usually oriented either upon or within the substrate, with the convex left valve down.