236 JOURNAL OF CONCHOLOGY. 



LAND AND FRESHWATER SHELLS OBSERVED IN 

 THE NEIGHBORHOOD OF REDCAR. 



By C. ASHFORD. 



The following list is the result of personal observation during 

 the unfavorable months of March, April and May of this year and 

 must be considered very imperfect. It should be noted that from 

 the peculiar position of Redcar on a protuberance of the coast, a 

 radius with that town for its extremity would sweep not much 

 more than one-third of a circle of land — a fact likely to affect in 

 no shght degree the number of occurring species. The following 

 were found within four miles of Redcar : — 



Sphaerium corneum L. Ponds, Coatham Marshes. 

 Pisidium fontinale Drap. Extremely abundant in Meg- 

 gitt's Ponds, Kirkleatham; Wilton Wood. 



P. fontinale var. pulchella. Occasionally with the last 

 in Meggitt's Ponds. 



P. pusillum Gmel. In same ponds, sparingly. 

 P. pusillum var. obtusalis. Three examples from one of 

 Meggitt's Ponds. 



Bythinia tentaculata L. Beck between Redcar and 

 Marske. 



Planorbis nautileus L. Abundant on Lemna minor in a 

 pond on Coatham Marshes. The usual ridges' imperfectly 

 developed. 



Physa hypnorum L. Coatham Marshes; grassy ditch 

 by the old railway, small but deeply colored. 



P. fontinalis L. Coatham .Marshes; Brickfields Pond. 

 Plentiful. 



Limnsea peregra Miill. In many dykes and ponds, 

 abundant and very variable. 



J.C., ii., August, 1879 



