Late Pliocene to Late Pleistocene; Recent.
Cayman Islands to southern Florida.
For information on the modern distribution of the species, see Malacolog.
Original Description (from Say, 1826, p. 218):
"Shell subovate, angulated at the anterior base, transversely wrinkled, and within slightly striated longitudinally.
Coast of East Florida.
Shell white, immaculate, ventricose; wrinkles distinct, and with obsolete, longitudinal striae: posterior slope near the hinge parallel to the base; posterior end obtusely rounded; anterior hinge slope rectilinear, oblique: anterior end rounded; fold rather profound, extending from the beak to the junction of the base, with the anterior end: base viewed from the disk of the right valve subrectilinear, but very much arcuated with the concavity of the shell: hinge teeth small, lateral teeth none: within longitudinally obsoletely striated: beak rather before the central.
Length 1 3/5 inches nearly; breadth 2 1/10 inches nearly.
This shell was handed me for examination by Professor Green, in whose cabinet the specimen is preserved: a right valve is in the collection of Mr. Hyde: In general outline, it resembles fig. 3, pl. 287 of Encycl. Meth."
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Synonymous with Leporimetis intastriata (Say, 1826) and Tellina ephippium Spengler, 1798 (original combination).