Medium size, with an oval shell and a plump body.

Small to medium size, with an oval shell.

Members of this genus have large, elongated oval shells with two equal sized valves.

He held up a smooth oval vari-colored shell that glistened in the light.

We stop at the oval shell of an old cinema.

The anterior part of the oval shell is narrower than the rest.

But the presence of a large oval shell at each end of the creature came as a complete surprise.

The size of the plump, oval shell varies between 3 mm and 11 mm.

The oval shell is shining, white, sometimes marbled with pale chestnut.

It has a bulky, oval shell with well defined concentric ridges.