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

by G. B. Sowerby

PLATE XX.

Tornatella.

Fig.

01. T. fasciata, Lamk.—Voluta tornatilis, Linn., Bulimus T., T. pellucida and pusilla (young).—Brit. co. generally. N. and S. Eu.

Ovula.

02. O. patula, Penn. (Bulla).—Exmouth, Arran, etc., 20 fath. S. Eu. Wide aperture, Mc.

03. O. acuminata, Brug.—Bulla and Volvula a.—Loch Fyne, Lamlash, Galway, etc., R. S. Eu. Narrow, pointed.

Cylichna.