COLLINGE : MOLLUSCA OF INGLETON. I 1 1 



Planorbis corneus L. Not uncommon, but only small. Ponds 



on Clapham Common ; brook near Clapham Station. 

 Planorbis contortus L. Common and generally distributed. 

 Physa hypnorum L. Ponds on Clapham Common. Not a 



common species. 

 Limnaea peregra Miill. Abundant and very fine, everywhere. 

 Limnaea auricularia L. Ponds on Clapham Common, only 



small specimens. 

 Limnaea stagnalis L. Not uncommon, and fairly distributed. 

 Limnaea palustris Miill. Ponds on Clapham Common. These 

 specimens were the first Limnaeas I observed to discharge a 

 purple fluid when irritated, which they did frequently during the 

 time I had them in my aquarium. Lake marl, Crummockdale 

 (H. Richardson). 

 Var. albida Nelson. Two specimens with type. 

 Limnaea truncatula Miill. Common everywhere. 

 Limnaea glabra Miill. Abundant in ponds on Clapham Common. 

 Since I found this species exterminated from this locality I have 

 had only one opportunity of working the district for freshwater 

 molluscs, but much to my regret I was unable to discover a fresh 

 locality. Should it be found again, I should be very pleased to 

 hear of it. 

 Ancylus fluviatilis Miill. Common, ditch on the side of Ingle- 

 borough ; rocky pools at Swilla Bottom. 

 Arion ater L. Abundant everywhere. 



Var. brunnea Roebuck. Sides of Ingleborough with type. 

 Arion hortensis Fer. Common everywhere. 

 Arion bourguignati Mabille. Common in Kingsdale (W. Denison 



Roebuck). 

 Limax maximus L. Generally distributed and fairly common. 

 Limax flavus L. Common. 

 Limax agrestis L. Abundant everywhere. 



Var. albida Picard. By Clapham Church-yard wall. 

 (J. R. B. Tomlin). 

 Limax laevis Miill. One specimen in Kingsdale (J. R. B. Tomlm). 

 Amalia marginata. Sparingly met with, but of frequent occur- 

 rence (VV. E. CoUinge and J. R. B. Tomlin). Near Ingleton, 

 Helks Wood, etc. 

 Succinea putris L. Common in suitable localities. Two speci- 

 mens in Lake marl, Crummockdale (J. R. B. Tomlin). 

 Succinea elegans. 'One specimen only, on herbage in a wet 

 ditc h, Bentham Road, Ingleton ' (E. Collier). 



April iSgo. 



