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

by G. B. Sowerby

PLATE XXII.

Succinea. Amphibious.

Fig.

01. S. putris, Linn. (Helix.)—H., S., and Limnæa Succinea and amphibia.—On plants by the side of rivers, ditches, etc., C. Rather oval in form.

02. S. gracilis, Alder.—S. putris, var. gracilis, S. amphibia, var. Pfeifferi.—By sides of streams and in damp meadows, C. Elongated, with spire produced.

03. S. oblonga, Drap.—Helix elongata, Amphibulina o. and e.—Swansea, Glasgow, etc. Sometimes at a distance from water, R. Spire with more distinct whorls.

Conovulus. Partly marine, amphibious.

04. C. bidentatus, Mont. (Voluta.)—C., N., Actæon, and Auricula alba (var.) and erosa.—Salt-water marshes, and on rocks near high-water mark all round our coasts, C. No tooth on outer lip.

05. C. Mysotis, Drap.—C. denticulatus, var., etc.—Brackish marshes, Thames, etc., C. Outer lip with one tooth.

06. C. denticulatus, Mont. (Voluta.)—C., V., Auricula, and Actæon ringens, reflexa (var. f. 7), Mysotis, and personata.—Numerous places, near the sea, C. Outer lip with many teeth.