Balea. 



Fig. 



17. B. FRAGiLis, Z'/'fljs. [Pupa.) — BuliTmtSjPupa, Clausiliaf.,perverstis. 



— C. and gen. Under bark on trees, and under stones. 



Clatjsilia. With a twisted clausmm on columella. 



18. C. laminata, Mont. — Helix, Turbo, Bulimns, and Pupa hidens and 



jjerversus and demgata. — S. Brit, principally. Among dead 

 leaves, and on Beech-trunks, Mc. Smooth, broad. 



19. CtiiGS.ic\Ti&, Maton and Rackett. — Stromhiformis, Turbo, and Odo- 



stomia perversus, hidens, parvula, etc. — C. and gen. ; under stones, 

 on walls and trees, etc. Narrow, striated. 



20. C. BiPLiCATA, Mont. — Helix, Turbo, Odost., C. perversa, pUcata, 



ventricosa, etc. — Near London, etc., Mc. Two folds on columella. 



21. C. PLiCATULA, Brap. — Turbo and C. conversus. — Charlton Wood, 



Kent, Hastings, Gloucestershire, etc., R. Numerous plaits on 

 columella above fold. 



ZUA. 



22. Z. LTTBRiCA, Mailer, {Helix.) — Turbo, Bulimus I., subeylindnca, 



muscorum, etc. — C. and gen. Among leaves and under stones. 



AZECA. 



23. A. TRiDENs, Pulteney, [Turbo.) — Helix, Pupa andCionella GoodalUi, 



Britannica, etc.— C. and general. Habits as Zua and Pupa. 



ACHATINA. 



24. A. ACiCTJLA, Milller. — Buccimim, Bnlimns, Helix octona, terrestre, 



etc. — In marshy places, among Grass, etc., C. S. Eu. 



Cyclostoma. Snail with operculum. 



25. C. ELEGANS, Milller, {Nerita.) — Turbo rejiexus, T. tumidus, striatus, 



elegans. — Chalky districts of S. Engl., C. 



Acme. Cylindrical Snail with operculum. 



26. A. LiNEATA, Brap. [Auricula.) — Turbo, Can/cJiiwrn, Cyclostoma, 



Bulimus fuscus, CocJilea mimda. — Bristol, Pembroke, Clare, 

 Dublin, etc., E. 



/• 



