104 LAND AND FRESH-WATER SHELLS. 



P. fontinale Drap. Forty-two counties. 



Eng. S. o-i 6-7 9—13 17 21 28 30 32—34 37-38 

 40. Wales 41 44-45 47. Eng. N. 53 56 — 67 69. Scot. 

 3 I o loi 108. Irel. 124. 

 P. pusillum GmeL Fifty-two counties. 



Eng. S. o-i 4 6-7 9 II— 17 21 23 26 28 30 32-33 

 36-37 39-40. Wales 41-42 45 47. Eng. N. 53—59 61— 

 64 66-67 69-70. Scot. 73 78 81 90 loi 105 107-108. 

 Irel. 144. 

 P. nitidum Jen. Twenty-four counties. 



Eng. S. 6 10- 1 1 16 23 28 37-38. Wales 41-42. Eng. 

 N. 54 56 — 59 61 63 — 65 67. Scot. 85 94 112. Irel. 



113- 

 P. roseum Scholtz. Thirteen counties. 



Eng. S. o II 15 17 20-21 30 40. Eng. N. 56-57 63 

 66. Scot. 85. No records for Wales or Ireland. 

 Unio tumid as Phil. Twenty-one counties. 



Eng. S. 6 21—23 30 32 34 37—39- Wales 47. 

 Eng. N. 53 — 57 59 61 — 64. No records for Scotland or 

 Ireland. 

 U. pictorum L. Twenty-four counties. 



Eng. S. 6 8 17 21-22 27 29-30 32 37 — 39. Wales 

 47. Eng. N. 53 — 59 62 — 64 68. No records for Scot- 

 land or Ireland. 

 U. margaritifer L. Sixteen counties. 



Wales 45 49-50. Eng. N. 62 67 71. Scot. 76-77 

 87-88 90 98 108. Irel. 126 144-145. No records for 

 England S. 

 Anodonta cygnea L. Forty-one counties. 



Eng. S. 8 II 17-18 20 25 27-28 30 32 — 34 

 37 — 40. Wales 42 45. Eng. N. 53 — 67. Scot. 76 90. 

 Irel. 115. 

 A. anatina L. Twenty-five counties. 



Eng. S. 6 15-^6 20 — 22 27 32-34 38 — 40. Wales 

 45. Eng. N. 55 — 59 61 — 65 67. Scot. 83. No records 

 for Ireland. 

 Dreissena polymorpha Pall. Twenty-three counties. 



Eng. S. 6 17 21—23 29 31—34 37—40- Eng. N. 



