180 ME. W. WEST OS THE FRESHWATER 



49. Staurastrum alternaxs, JBreb. in Ralfs, Brit. Besm. 

 p. 132, tab. 21- fig. 7. 



Long. 22 /i ; lat. 21 \i ; lat. isthm. 7*5 /x. 



I. Moher Lough ; Derryclare Lougli ; Lakes near Kecess, 

 and from Clif den to Eoundstone ; Lakes east of Lougli Bonn ; 

 Nacoogarrow Lougli ; Clifden. — II. Lower Lake of Killarney ; 

 G lengarriff. 



50. S. dilatattjm, Ehrenb. (Ralfs, Brit. Besm. -p. 133, tab. 21. 

 fig. 8.) 



I. Creggan Lough.— II. Upper Lake of Killarney; Cloonee 



Lough. 



* 



Not. (Nord. Fr. Wat. Alg. of New 



L Lakes near Recess ; Ballynahinch. 



51. S. lois-qispinum, Arch. (PritcJi. Infus. ed. 1861, p. 743.) 

 Long. 97 fx ; lat. sine spin. 87 ix ; lat. cum spin. 130-135 p ; 



lat. isthm. 40 /jl. 



I. Lough Aunierin. — II. Adrigole. 



52. S. tumidtjm, JBreb. in Ralfs, Besm. p. 126, tab. 21. fig. & 

 I. Near Westport. — II. Carrantuohill. 



■ 



53. S. bbachiatum, Ralfs. {Brit. Besm. p. 131, tab. 23- 

 fig. 9.) 



I. Kylemore ; Derryclare Lough. — II. Castletown. 



54. S. tbicobke, Menegh. (Ralfs, Brit. Besm. p. 134, tab. 22. 



fig. 11.) . 



I. Baheh Loughs.— II. Lough Guitane: Mallow; Cloonee 



Lough ; Lower Lake of Killarney ; Carrantuohill. 



Yar. (1, Ralfs. (Ralfs, Brit. Besm. p. 134, tab. 34. fig. 8, 

 b-d.) 

 I. Ballynahinch ; Lakes, Clifden to Eoundstone.— II. Muek- 



ross ; Adrigole. 



tVar. semicieculaee (nob.). [S. hexacerum, Wittr., var. 

 semicirculare, Wittr. (Qotl. ock 01. Sot v. Alg. p. 52, tab. 4. 



fig- 9)-] 

 I. Derryclare Lough. 



