152 MR. W. WEST ON THE FRESHWATER 



Baheh Loughs ; Lakes, Clifden to liound stone ; Ballynahinch. 

 II. Muckross ; Kenmare ; Lower Lake of Killarney. 



fVar. Lundellii, Wittr. (Gotl.och 01. Stov. Alg.y. 56.) 

 [C. tetraophthalmum, Breb., forina, Lund (Besm. Suec. 



p. 27).] 



1. Ballynahinch ; Creggan Lough ; Roundstone ; near West- 

 port ; Nacoogarrow Lough ; Shiudilla Lough. — II. Lough 

 Guitane; Glengarriff. 



50. Cosmariijm Brebissomi, Menegh. (Balfs, Brit. Desm. 

 p. 100, tab. 16. fig. 3.) 



I. Baliynahinch ; Lough Aunierin ; near Oughterard ; Berry - 

 elare Lough; Boundstone; Oorid Lough ; near Becess ; Nacoo- 

 garrow Lough. — II. Lough Guitane; Glengarriff; Upper and 

 Lower Lakes of Killarney. 



ttForma erosa. (PI. XXL fig. 6.) 

 F. dorso subglabrato et subtruucato. 

 Long. 95 fi ; lat. 70 /z ; lat. istlnn. 25 f± ; crass. 47*5 //. 

 I. Berryclare Lough. — II. Lough Guitane; Glengarriff; 

 Carrantuohill. 



51. C. conspersum, Balfs. (Brit. Desm. p. 101, tab. 16. 



fig. 4.) 



I. Creggan Lough ; Boundstone ; Lakes, Clifden to Bound- 

 stone. — II. Adrigole. 



I 



ttVar. subrottt^datum, nov. var. (PI. XXL fig. 7.) 

 Var. angulis superioribus semicellularum rotundatioribus quam 



in var. rotundato, "Wittr. (Anteck. Skand. Besm. p. 13, fig- 4) ; 



grauulis numerosioribus in series horizontals (circiter 12), in 



series verticales (circiter 21) ordinatis. 



Long. 84 fi ; lat. 82 /* ; lat. isthm. 30 /x ; crass. 42 /x. 



II. Cromagloun. ' 



52. C. margaritiferum, Menegh. (Balfs, Brit. Besm. p. 100, 

 tab. 16. fig. 2.) 



I. Near Westport ; Boy Lough.— II. Clogerheen ; Glengar- 

 riff ; Guitane and Cloonee Loughs. 



53. C. Poetianum, Arch. (Pritch. Infus. ed. 1861, p. 733.) 

 Long. 33 ft ; lat. 29 n ; lat. isthm. 8'5 p. 



I. Lakes, Clifden to Boundstone, and E. of Lough Bonn ; 



