I06 LAND AND FRESH-WATER SHELLS. 



Wales 41. Eng. N. 53-54 56 — 65 67. Scot. 73 76-77 82 

 85 90 100. No records for Ireland. 

 P. albus Miill. Fifty-three counties. 



Eng. S. 3 6-7 lo-ii 13 15 — 19 21 — 23 25 27-28 30 

 3^—35 37—40- Wales 41 45 47 52. Eng. N. 53—65 

 67 71. Scot. 73 76 82 S^ 90 100. Irel. 144 147. 

 P. parvus Say. Twenty-three counties. 



Eng. S. 3 6 9 13 17-18 21 23 38. Eng. N. 55—57 59 

 6^ 65 — 68. Scot. 82 90 108. Irel. 114 144. No records 

 for Wales. 

 P. dilatatus Gld. One county. 



Eng. N. 59. No records for Wales, Scotland, or Ireland. 

 P. spirorbis Miill. Fifty-two counties. 



Eng. S. o-i 6-7 10 — 13 16 18 — 23 27 — 29 32-33 

 37—40. Wales 41-42 45 48 52. Eng. N. 53—64 66- 

 67. Scot. 73 76 89 90 92 103 108. Irel. 142 144. 

 P. vortex L. Forty-five counties. 



Eng. S. o 3 6-7 9 II 13 15—25 27—29 32—34 

 37 — 40. Wales 41 42 47. Eng. N. 53 — 59 61 — 64. 

 Scot. 90. Irel. 131 142. 

 P. carinatus Miill. Forty-three counties. 



Eng. S. 6 9— II 15 17—25 27—29 32—34 37— 

 39. Wales 41-42. Eng. N. 53 — 59 61 — 66. Scot. 83. 

 Irel. 113 115 131 142. 

 P. complanatus L. Forty-eight counties. 



Eng. S. 5—7 II 13—17 19—30 32—34 37—40. 

 Wales 41-42. Eng. N. 53—57 59 — 67. Scot. S^. Irel. 

 131 142 144. 

 P. corneus L. Thirty-five counties. 



Eng. S. 6 II 13 15—17 20—24 27—34 37—39- 

 Eng. N. 53 — 59 61 — 65. Irel. 142. No records for 

 Wales or Scotland. 

 P. contortus L. Forty-four counties. 



Eng. S. 6-7 lo-ii 13 15—17 19—23 27—30 32-33 

 37 — 39- Wales 52. Eng. N. 53 — 64 66, Scot. 73 85 

 89-90 92 100. Irel. 142 144. 

 Physa hypnorum L. Thirty-two counties. 



Eng. S. o 6 II 16 19 29 34 37 — 40. Wales 41-42 



