ID Keys
*Images in development


Ovate-trigonal, strongly inequivalve LV fitting deeply into RV. Juveniles subquadrate with spines on dorsal margin
Corbula gibba
Elongate, subelliptical, posterior becoming truncate in some, some rather irregular
Go to #2
Beaks towards the anterior, adult shells rather wedge shaped, obliquely truncated posteriorly with a faint posterior angulation, pallial sinus short reaching about halfway to point below chondrophore
Sphenia binghami
Beaks close to midline
Go to #3
Shells less than 10mm, juvenile
Go to #5
Shells more than 10mm, closer to adult
Go to #4
Adult shells subelliptical, beaks close to midline, posterior narrowly rounded, pallial sinus narrowly rounded, extending to point below chondrophore
Mya arenaria
Adult shells truncate posteriorly or rather irregular but beaks well in front of midline, pallial sinus broad, truncated, extending to point below chondrophore
Mya truncata
Subovate, beak towards anterior, posterior dorsal slope steep
Mya arenaria
Broadly rounded anterior with beak at midline, posterior dorsal slope is shallow
Mya truncata