anatomical drawing of a fresh water mussel.
Epioblasma males and females are dimorphic in shell shape, the female being more bulging at the posterior end and with a narrower curve. This allows room for her mantle to swell with little larval clams or gloccidia, ready to be released to attach to fish. Its host fish are recently thought to be Darters.
Now I have three more clam drawings to finish in watercolour.