Conchological Notices hy Dr. Turton. 565 



Bulimus decoUatus was observed io breed in great abundance, 

 for many successive years, in the green-house at Watton, in the 

 south of Devon, the seat of H. Studdy, Esq. lodged in the earth, 

 under the wood-work, whence they wandered abroad in the sum- 

 mer. This wood-work, and the earlh, were removed, and re- 

 placed with stone, by which the colony was lost ; and all that 

 were preserved we owe to the care of Mrs. Griffiths and Miss 

 Hill. 



BuUrmis Uneatus^ the Turbo fuscus of Walker, is found abund- 

 antly in wet springy places, in various parts of Devonshire, im- 

 bedded among the Jungermannia, constantly exposed to the 

 drippings of springs, A variety is also found of a pale yellowish 

 colour. 



Bulimus Clavulus^ the Cochlicella Clavulus of Ferrussac, and 

 which Mr. Miller found in pine-beds, at Bristol, may now be con- 

 sidered to be naturalized, as much as the Testacellus Maugeu 

 Mr. Sowerby, in his Genera of Shells, considers it as a species of 

 Achatina : but the pillar-lip is well rounded, and not in the least 

 truncate. The only British species of Achatina are the Buc- 

 cinum terrestre^ and the Helix Octona of Authors, if the latter 

 shell may be properly said to be native. Lamarck has placed the 

 Helix octona among his Bulimi; but the pillar-lip is evidently 

 truncate. 



Cyclostoma simile^ and (7. acutum, of Draparnaud, of the more 

 modern genus Paludina^ are both found in stagnant ditches : the 

 latter is the long lost Helix Siagnorum of Gmelin. 



Limneus Scaturiginum of Draparnaud, is found on the under 

 surface of the peltate leaves of the white Water-Lily. 



Helix pygmcea of DrapurmMd, is found abundantly in ditches, 

 under leaves. Leach mistook it for the young of //. rupestris, the 

 H. umbilicata of Montagu, but it is very distinct, the two species 

 never being found together. 



The Clausilia Rolphii of Leach, is without doubt the Clausilia 

 plicatula of Draparnaud. The specific character may be thus 

 exhibited. 



CI* testa ventricosa, opaca^ striis regularibus elevatis : plicis aper» 

 turce quatuoT s* quinque^ duabus majoiibus* 



