it is of a reddish white color, covered with a browner shagreened epidermis, and marked with irregular and more or less numerous striae of increase.

The valves are pretty thick, rounded at the anterior, and truncated at the posterior side.

There exists upon the anterior side a muscular impression, long and very narrow in its middle, very near the edge.

[2] Thracia pubescens is found in the North Atlantic Ocean, off Spain, the Azores and the Canary Islands and West Africa.

It is distributed widely round the coasts of Britain and Ireland where it burrows in sandy or muddy substrates, extending its siphons to the surface to breathe and feed.