164 



Proceedings of the Roj/al Irish A cademy. 



44 Succhiea pvArls 

 45. Succinea pfeifferi 



46. 



47. 



48. Succinea dblonga 



49. 



50. 



51. llyaliiiia cdlaria .\ 



J 



The Gearagli, West Cork. A. W. S. July 1907. 

 Ballinacollig, Mid Cork. E. A. PliiHips. 

 limestxjue quany at Carlingford, Louth. E. Welch. 



Feb. 1906. 

 Eosses Point, Sligo. A. W. S. July 1904. 

 Limestone quaii-ies at Carrickreagh, Fermanagh. 



E. Welch. Sept. 1900. 

 Bed of a small peaty stream in sand-dunes, 



Dooaghtiy, West Mayo. A. W. S. Sept. 1909. 

 In a wood on the shore of Lough Xeagh at An trim. 



Castle, Antrim. E. Welch. Aug. 1907. 



[- Woodford, S.E. Galway. E. A. Phillips. Sept. 1910. 



53. Planorhls carinatits, 

 54. 



Lough GaUiagh, EnmskUlen, Fermanagh. A. W. S 



July 1909. 

 The White Bog, Ejllough, Down. A. W. S. 



June 1909. 



55. ,. „ . Mouth of Antiim Eiver, Lough Neagh, Antrim. 



A. W. S. Aug. 1907. 



56. P/a>M>/-&is «»i&i^tca^i<.s, Drain near MUford, Armagh. A.W.S. March 1908. 



Xos. 6, 19, 21, 30, 34, and 53 show the forms of the various species 

 commonly met with in the limestone plain ; Nos. 7, 8, 9, 11, 12, 25, and 54 

 were aU taken fi-om peaty watei-s ; Xos. 1, 3, 13, 18, 22, 36, 37, and 55 are 

 lacustrine fonns ; while Xos. 2, 4, 10, 15, 16, 17, and 26 are maritime ones, of 

 which Xos. 10 and 26 came from distinctly brackish habitats. 



