PLATE XXII. 



Succinea. Amphibious. 

 Kg- 



1. S. putris, Linn. [Helix.) — H, S., and Limncea Succinea and am- 



phibia. — On plants by the side of rivers, ditches, etc., C. Rather 

 oval in form. 



2. S. gracilis, Alder. — S. putris, var. gracilis, S. amphibia, var. 



Pfeifferi. — By sides of streams and in damp meadows, C. Elon- 

 gated, with spire produced. 



3. S. oblonga, Drop. — 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. 



4. C. bidentatus, Mont. [Voluta.) — C.,N., Action, 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. 



5. C. Mysotis, Drop. — C. denticulatus, var., etc. — Brackish marshes, 



Thames, etc., C. Outer lip with one tooth. 



6. C. denticulatus, Mont. [Voluta.) — C, V., Auricula, and Actaon 



ringens, reflexa (var. f. 7), Mysotis, and personata. — Numerous 

 places, near the sea, C. Outer lip with many teeth. 



7. C. reflexus. — Auricula reflexa, C. denticulatu, var. Jeffreys. 



Carychium. 



8. C. minimum, Miiller. — Turbo Carychium, Auricula minima. — Moist 



places, wet Mosses, etc. Generally distr., C. 



Limax. Land Slug, with shell under shield. 



9. L. cinereds, Miiller. — L. maximus, maculatus, Limacella parma. 



Brit, gen., C. ; Eu. Shell oval, large, thin. 



10. L. agrestis, Miiller. — L. concava and obliquus. — Brit, gen., C. 



Foss cr. Shell small, oblique. 



11. L. brunneus, Drop. — L. concava. — Under stones, etc. Shell 



minute, square. 



12. L. flavus, Linn. — Limacella tcnguiculata and variegata. — The 



large Cellar Slug. Shell thick, rather square. 



Testacella. Slug with shell or tail. 



13. T. Maugei, Ferussac— Clifton, Taunton, Plymouth, Swansea, etc., 



Mr. Large, and more square than 14. 



