CORBULA.
LITHOPHAGA.
"The family Corbula contains two genera.
| Corbula | —— |
| Pandora | Tellìna. |
"Corbula comes chiefly from the Asiatic Seas. There is one species, formerly Mya inequivalvis, from the British Ocean; fossil species several. Pandora rostrata is British, and is said to be met with at Weymouth. It is a pretty shell. The ligament of these is internal.
"Lithophaga includes
| Saxicava | Mytilus. |
| Petricola | |
| Venerupis, or Venus of the rocks. | |
VENERUPIS PERFORANS.
PSAMMOBIA.