A LIST OF THE LAND AND FRESH-WATER SHELLS 



FOUND IN THE 



NEIGHBOURHOOD OF HUDDERSFIELD, 



By T. Whitwham, 



This list of sliells is tlie result of six or seven years' collecting, 

 Huddersfield is seven miles from Halifax, and I have rather interfered 

 on that side, as it will be seen I have named, two from Salterhebble. 

 On the north and east sides there is not much to be found, after three 

 miles without going a long way out of the district, and on the south 

 iside if we go three or three-and-a-half miles we get near the moors, 

 where none but common shells can be found. The readers of the 

 Naturalist will see that we have a number of shells absent from this 

 district, for we have no stagnant ponds or canals suitable for them, 

 as is the case in the Wakefield district. 



AQUATia- 



Sphserium corneum, L. Plentiful m the canaL 



„ „ var. flavescens, Macg. Rare, plentiful in 



canal. 



„ ., var. pisidioides, Gray. Deighton. 



8. rivicola, Leach. Rare, canal at Elland. 

 S. lacustre. Mull. Rare, Farnley Tyas. 



var. Ryckholtii, Norm. Rare, Farnley Tyas. 

 Picidium amnicum. Mull. Rare, canal at Elland, 

 P. fontinale, Drap. Rare, canal at Elland. 

 P. pusillum, Gmelin. The Hey Wood, very local, 

 P. nitidum, Jenyns. Rare, canal at Elland. 



Anadonta cygnea, var. zellensis, Gmelin. Canal near Elland, 

 rather plentiful. 



Bythinia tentaculata, L. Common in both Elland and Hudders- 

 field canals, 



B. tentaculata, var. decollata. Plentiful in ditto. 

 Planorbis nitidus, Mull. Common at Deighton. 

 P. vortex, L, Common in Huddersfield canal. 

 P. carinatus, Mull. Common in a dam at Deighton. 

 P. contortus, L. Not uncommon in Huddersfield canaL 

 Limn^a peregra, Mull. Common throughout the district, 

 5, „ var. ovata, Drap. Very rare in Elland canaL 



