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

by G. B. Sowerby

14. R. costata, Adams.—R., Turbo, Cingula plicata, costata, and exigua.—South co. Brit., S. Wales, Orkneys, Ireland, Channel Isls., 0 to 25 fath., C.

15. R. striata, Mont.—R., Turbo, and Cingula semicostata, minutissima, communis, gracilis, etc.—Brit. co. generally, N. and S. Eu.; littoral C.

16, 17, 18. R. parva, Costa.—T., C., and R. sublutea, lactea, alba, etc., R. interrupta (var. f. 17), R. Sarsii, var. f. 18 (unique).—Brit. shores generally, C.

19. R. costulata, Alder.—Turbo variabilis, R. similis.—Devon, Channel Isls., W. Ireland, etc., C.; S. Eu.

20. R. rufilabrum, Leach.—R. and C. hyalina and punctata.—Devon, Belfast, etc., Mc.

21. R. labiosa, Mont. (Helix.)—T., C., and R. membranacea and costata.—Brit. co. generally, C.

22, 23, 24, R. inconspicua, Alder.—R. albula and supra-costata, var. f. 23, R. similis, var. 24, R. maculata.—Brit. co. generally, C.

25. R. semistriata, Mont.—T. and R. pulchra and tristriata.—Brit. shores generally, C.

26. R. cingillus, Mont. (Turbo.)—R., T., and C. vittata, var., R. graphica and R. rupestris.—Brit co. generally.

27. R. vitrea, Mont. (Turbo.)—Helix glabrata, R. crystallina.—Exmouth, Oban, Birterbuy, etc., Mr. Elongated, smooth.