398 Mr. T. C. Eyton on the Fauna of Shropshire. 



Helix lu'spida, Mont. H. sericea, Drap. Common. 



Helix lu ciila, Drap. Common. 



Helix radiata, Mont. //. rotundata, Mull., Drap. Common. 



Helix ericetorum, Linn. At Rhoscolyn and Towyn Merioneth : 

 common on stones and walls on the sea shore. 



Bulimus fasciatus, Mont. B. aculus, Mull. Common on most 

 sandy shores above high water mark, and where there is some slight 

 vegetation. 



Pupa Secale, Drap. Very common at Eyton in the autumn, ad- 

 hering to the under side of logs of wood and stones. 



Cyclostoma obtusum, Drap. Common on the Weald moors, adhe- 

 ring to water plants. 



Planorbis carinatus, Drap. Common in ditches on the Weald 

 moors. 



Planorbis vortex, Mull. Common in the same locality as the last. 



Planorbis contortus, Turt. Also common on the Weald Moors. 



Planorbis nitidus, Mull. Not so common as the foregoing species, 

 but found in the same locality. The Planorbis nitidus of Muller ap- 

 pears to be the P. complanata of Drap. ; P. nitidus of Drap. is pro- 

 bably the P. contortus of Turton and Linnaeus. 



Planorbis marginatus, Drap. Common at Eyton. 



Limneus magnalis, Linn. Once taken at Eyton. 



Limneus palustris, Linn, and Drap. Common. I also find a va- 

 riety of this species not quite so robust, and never growing to so large 

 a size as the true palustris. 



Limneus elongatus, Drap. Once only taken near Watford in a 

 peaty ditch. 



Limneus auricularius , Linn., Drap. Common. 



Anchylus fluviatilis, Mull. Common: attached to stones in most 

 streams in Shropshire. 



Anchylus lacustris, Mull. Twice taken in a mountain stream near 

 Capel Curig. 



Paludina impura, Lamk. Common. 



Paludina similis, Jeff. P. viridis, Turt. Common on the Weald 

 Moors. 



Anodon cygneus, Lamk. Common in pools and in the Shrewsbury 

 canal. 



Anodon anatinus, Lamk. Also common in the same localities 

 with the last ; the remaining species of this genus are exceedingly 

 doubtful. 



Mysca Pictorum, Turt. Common. 



Unio Ratana, Lamk. Occasionally taken at Watford. 



