210 MR. W. WEST ON THE FRESHWATER 



13. PlNNTJLARIA MESOLEPTA, W. Sm. (Brit. Diat. i. p. 58, 



tab. 19. fig. 182.) 



I. Ballynahinch ; near "Westport ; Kylemore ; Lough Aunierin ; 



Lakes near Recess. 



14. P. diverged, TV. Sm. (L. c. p. 57, tab. 19. fig. 178.) 

 T. Derryclare Lough. — II. Lough Guitane ; Carrautuohill. 



15. P. Brebissonii, Rabh. (Fl. Europ. Alg. i. p. 222.) 



I. Derryclare Lough ; near Westport. — II. Cloonee Lough. 



1. Frusttjlia saxonica, Rabh., forma aquatica, Eabh. (Fl. 

 Europ. Alg. i. p. 227.) 



I. Near Westport; Athry Lake; Ballynahinch; Clifden ; 

 Nacoogarrow and Derryclare Loughs ; Lough Aunierin. — II. 

 Lough Guitane ; Tore Mt. ; Grlengarriff ; Upper and Lower 

 Lakes of Killarney ; Carrantuohill ; Cloonee Lough ; 8 m. S. of 

 Kenmare. 



1. Pletjro SIGMA lacustre, W. Sm. (Brit. Diat. i. p. 66, tab. 

 21. fig. 217.) 



I. Near Westport. 



1. Stauro:neis Phce:n icenteron, Ehrenb. (TV. Sm. I.e. p. 59, 

 tab. 19. fig. 185.) 



I. Near Westport ; near Leenane ; Kylemore ; Ballynahinch ; 

 near Oughterard ; Moher Lough ; Shindilla and Baheh Loughs ; 

 Lakes E. of Lough Bofin.— II. Sugar Loaf Mt. ; near Lough 

 Brin ; GlengarrifF; Clogerheen; Cloonee Lough. 



Ehrenb. .forma. Rabh. fS. Gracilis. W* 



(L 



We 



^ 



3. S. anceps, Ehrenb. (TV. Sm. I. c. fig. 190.) 



I. Lakes E. of Lough Bofin ; Loughs Aunierin and Shindilla. 



II. GlengarrifF; Cloonee Lough. 



Eorma linearis, Rabh. (Fl. Europ. Alg. i. p. 247.) 

 I. Near Oughterard. .., 



1. pLEUROSTArRUM Legumes, Rabh. [Stauroneis linearis, 

 TV. Sm. (Brit. Diat. i. p. 60, tab. 19. fig. 193).] 

 I. Near Westport. 



