Illustrated Index of British Shells / Containing figures of all the recent species

by G. B. Sowerby

22. S. alba, Wood.—(Mactra) M. and Amphidesma Boysii and A. album.—Brit. co. generally, C. Short, rounded, oval.

PLATE III.

Psammobia. Inhabits sand and mud.

Fig.

01. P. ferroensis, Chemn.—(Tellina) T. incarnata, T. radiata, T. trifasciata, T. truncata.—Brit. co. generally; coralline, C. Oblong, keeled and angulated behind.

02. P. costulata, Turt.—P. discors.—Torbay, Cornwall, Skye, etc., R. Ribbed behind.

03. P. Tellinella, Lamk.—P. florida.—Exmouth, Guernsey, Tenby, Bantry B., Oban, Zetland, etc., 5 to 50 fath., C. Oval, smooth.

04. P. Vespertina, Chemn.—(Lux V.) Solen, Sanguinolaria V., Tellina depressa, variabilis.—Weymouth, Scarborough, Tenby, Bantry, etc., Guernsey, C. Not angular nor keeled behind.