'3 



LAND AND FRESHWATER MOLLUSCA OBSERVED 

 NEAR TADCASTER. 



FRANCIS G. BINNIE. 



[The following- notes have been in my possession since the year 

 1880, and it seems useful to print them, inasmuch as they refer 

 to a district which was keenly explored by Mr. Binnie during 

 his residence there, and which has (with the exception of the 

 vicinity of Boston Spa, so closely searched by Mr. John Emmet) 

 -only been cursorily examined by conchologists since. — W. D.R.] 



Localities are given for even the commonest species. 



Those enclosed within [ ] are not strictly within the limits of 

 the district [i.e., the Wharfe drainag-e basin], but belong to 

 closely adjacent parts of the Ainsty. 



By the term 'Boston Spa,' so frequently used in this list, 

 I designate the steep wooded bank of the river Wharfe extend- 

 ing - from the road leading - past the church upwards to Jackdaw 

 Crag - , and the strip alongside the road going from this point 

 towards the main road. 



Sphserium corneum. Beck in Smaw's Ings, Tadcaster. 



Sphasrium lacustre. Small pond near Tadcaster ; pond be- 

 tween Wighill and Healaugh. [Not unfrequent in ponds 

 in the Ainsty.] 



Pisidium amnicum. River Wharfe, Boston Spa, and Tadcaster. 



[Bythinia tentaculata. Dead shells among- mud, etc., thrown 

 out of the Foss beck near Catterton.] 



Valvata cristata. Pond near Healaugh Hall, Tadcaster. 

 [Generally distributed in ponds in the Ainsty.] 



[Planorbis fontanus Lightf. Ponds near Healaugh and Bil- 

 brough. I 



Planorbis nautileus. Ponds near Tadcaster ; pond near Jack- 

 son Wood, to the east of Wetherbv. 



Var. cristata (rarer than type). Tadcaster. 



Planorbis albus. Tadcaster; 



Planorbis spirorbis. Newton Kyme ; Wighill ; Tadcaster. 



Planorbis complanatus. Tadcaster; Wighill; pond near 



Jackson Wood, Wethgrby. 

 Planorbis contortus. Tadcaster ; Wighill. 



igoo January 3. 



