MOLLUSCA OF NORTHAMPTONSHIRE. 25 1 



Planorbis contortus (L.). — Peterborough and Eye, T.W.B.; 

 rejectamenta of river Nene at St. James' End, North- 

 ampton, one, W.D.C. 



Physa fontinalis (L.). — Newborough and Eye, T.W.B. ; 

 plentiful after a flood in a pool by the side of the road to 

 Beasley's Mill, St. James' End, Northampton, Feb., 1882, 

 the locality is now destroyed by the filling up of the pool, 

 W.D.C. 



Limnsea peregra (Mllll.). — Peterborough, Eye, and New- 

 borough, T.W.B. ; brook crossing the Kettering Road at 

 Kingsley Park, W.D.C. ; Little Sea at Far Cotton, North- 

 ampton, three, W.D.C. 



Limnaea peregra v. ovata Drap. — Canal at Far Cotton, 

 Northampton, five, W.D.C. ; canal at Blisworth, two, large 

 examples, W.D.C. ; ponds at Castle Ashby, six, R.R. 



Limnaea peregra v. intermedia Fer.— Peterborough, 1882, 

 T.W.B. 



Limnaea auricularia (L.). — Newborough, T.W.B. ; canal at 

 Blisworth, two, W.D.C. ; canal at Far Cotton, five, W.D.C. 



Limnaea stagnalis (L.). — Canal at Blisworth, two, W.D.C. ; 

 canal (one) and Little Sea (seven) at Far Cotton, W.D.C. ; 

 Peterborough, Newborough, and Eye, T.W.B. 



Limnsea palustris (Miill.). — Newborough, T.W.B.; Little 

 Sea at Far Cotton, seven, W.D.C. 



Limnaea truncatula (Miill). — St. James' End Meadows at 

 Northampton, three, W.D.C. 



Ancylus fluviatilis var. albida Jeff — Canal at Blisworth, 

 twelve, W.D.C. 



Arion ater (L.). — Weedon, Aug. i6th, 1883, very plentiful 

 there, and widely distributed round Northampton, W.D.C. 



Arion hortensis Fer. var. fasciata [=type]. — Wood near 

 Northampton, among dead damp leaves, W.D.C. ; garden, 

 7, Alfred Street, Northampton, three, Sep. 1884, small, 

 with yellow foot-sole, W.D.C. 



