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

by G. B. Sowerby

15. A. tarentina, Lamk.—Mytilus and Avicula hirundo, etc.—Bantry Bay, Devon, etc., R.

Pinna.

16. P. pectinata, Linn.—P. fragilis, muricata, ingens, lævis, papyracea, rotundata, elegans.—Dorset, Milford Haven, Hebrides, Cape Clear; deep water, Mc.

Ostrea.

17. O. edulis, Linn.—O. vulgare, etc.—Various natural and artificial beds, in England, Scotland, and Ireland. The common Oyster.

Anomia.

18. A. ephippium, Linn.—A. electrica, A. squamula, cepa, etc.—Brit. co. generally, 1 to 30 fath., C. Pearly and irregular; beak marginal, curved.

19. A. aculeata, Müller.—A. striolata.—Brit. co. generally, Mc. Small, with spinous sculpture.

20. A. striata, Lovén.—Hebrides, R. Rayed, striated, with apex not marginal.

21. A. patelliformis, Linn.—A. undulata.—Cape Clear, etc., 1 to 50 fath., Mr. Flat, ribbed.