Glycymeris aspersa

Glycymeris aspersa, common name the clothed bittersweet, is a species of saltwater clam, a marine bivalve mollusc in the family Glycymerididae, the bittersweets.

Description
Glycymeris aspersa has a shell that reaches a diameter of 36 – 46 mm. It is a sturdy shell, nearly circular in outline and rather flattened. It has mottled brown markings on a white background. The interior is white. In life the external surface is often partially clothed in a very dense brown periostracum.

Distribution
This species can be found in the East and South China Seas, as well as around Japan. It lives buried in sand or gravel.