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

by G. B. Sowerby

04. C. cylindracea, Penn. (Bulla.)—Bullina and Volvaria c., oliva, and umbilicata.—Brit. co. generally, C. N. and S. Eu.

05. C. obtusa, Montagu (Bulla).—Utriculus, B. and C. Jerviscensis and discors.—Brit. co. generally, C.

06. C. mamillata, Philippi.—Bulla and Tornatina m. and truncatula.—Exm., Skye, Galway, etc., Mc. S. Eu. Spire sunk, apex mamillated.

07. C. truncata, Adams, (Bulla.)—B. truncatula, retusa, semisulcata.—Brit. co. generally, C. N. and S. Eu.

08. C. nitidula, Lovén.—C. and Bulla n. and umbilicata.—Skye, Loch Fyne, etc., R. N. Eu. Elongated, oval.

09. C. conulus, Desh.—Zetland, Rr. Conical.

10. C. strigilla, Lovén.—C., Bulla, and Atys s. and ovulata.—Scotland, Mr. Spirally striated.

11. C. umbilicata, Mont. (Bulla).—Bullina and Volvaria u. and subcylindrica.—Brit. co. gen., Mc. With umbilicated apex.

12, 13. C. Lajonkaireana, Basterot, (Bulla.)—Guernsey, R. Narrower, and with more raised spire than C. obtusa.

Amphispira.