34 



Mr. J. 6. Jeffreys's Notes on Swiss Mollusca. 



British, but not hitherto indicated as Swiss. 



Testacella haliotoidea, Drap. 

 Vitrina Draparnaldi, Jeffr. ? 

 Helix Cantiana, Mont. 



Pisana, Miill. 



virgata. Da Costa. 



caperata, Mont. 



fusea, Mont. 



revelata, Fer. 



globularis, Jeffr. 



excavata. Bean. 



lamellata, Jeffr. 



Bulimus acutus, Mont. 

 Pupa Anglica, Fer. 



substriata, Jeffr. 



Azeca tridens, Pulteney. 

 Limneus glutinosus, Miill. 



Being in all twenty-eight, inclusive of three doubtful species. 



The last list is taken from Forbes and Hanley^s ' History of 

 the British Mollusca,' being the latest and most accredited work 

 on the subject. For the purpose of geographical distribution I 

 include Ireland with Great Britain. 



Limneus involutus, Harvey. If not 

 a variety of last ? 



Burnetti, Alder. If not a va- 

 riety of L. pereger ? 



Planorbis glaber, Jeffr. 



lacustris, Ldghtfoot. 



Assiminea Grayana, Leach. 



Bithinia Leachii, Sheppard. 



anatina, Drap. 



Neritina fluviatilis, Linn. 



Dreissena polymorpha, Pallas. 



Unio margaritiferus, Linn. 



Cyclas rivicola, Leach. 



Pisidium pulchellum, Jen. 



— • — Henslowianum, Shepp. 



