334 CENSUS OF DISTRIBUTION OF BRITISH MOLLUSCA. 



P. spirorbis Miill. Thirty-one counties. 



Eng. S. o I 6 II 13 16 18 21—23 29 32 33 37 38. 

 Wales 42 45 52. Eng. N. 53 56 57 61 — 64 66 67. 

 Scotl. 73 89 90 108. No records for Ireland. 



Frankfurt ; Bordeaux. 

 P. vortex (L.). Thirty-two counties. 



Eng. S. o 6 II 13 15—17 19—24 32—34 37—40- 

 Wales 41. Eng. N. 53 — 58 61 — 64. Irel. 131. No 

 records for Scotland. 



Bordeaux ; Obedeska Bara, Slavonia. 

 P. carinatus Miill. Thirty counties. 



Eng. S. 6 II IS 17 19—24 29 32—34 37—39. 

 Wales 41. Eng. N. 53 54 56 — -58 61 — 66. Irel. 131. 

 No records for Scotland. 



Bordeaux. 

 P. complanatus (L.). Thirty-seven counties. 



Eng. S. 5 6 II 13—17 19—24 29 30 32 34 38 39. 

 Wales 41 42. Eng. N. 53 55—57 59—67- Scotl. 83. 

 Irel. 131. 



Holland ; Neumark, Prussia ; Bordeaux ; Obedeska 

 Bara, Slavonia ; Algiers. 

 P. corneus (L.). Thirty-one counties. 



Eng. S. 6 II 13 15—17 20—24 27 29—34 37—39. 

 Eng. N. 53 55 — 58 61 — 65. No records for Wales, 

 Scotland, or Ireland. 



Bordeaux • Holland ; Wurtemburg ; Hungary ; 

 Neumark, Prussia ; Broussa ; Aschersleben ; Brunswick ; 

 Obedeska Bara, Slavonia. 

 P. contortus (L.). Twenty-nine counties. 



Eng: S. 6 II 13 15—17 19—23 29 32 33 37—39. 

 Eng. N. 53 — 56 61 — 64 66. Scotl. 73 89 90. No records 

 for Wales or Ireland. 



Bordeaux. 

 Physa hypnorum (L.). Twenty-two counties. 



Eng. S. o 6 16 19 34 37 38 40. Wales 41 42 45 50. 



J.C, iv., July, 1885. 



