ALG^ OF WEST IRELAND. 161 



94. Cosmarium connatfm, Breb. in Balfs, Brit. Desm. p. 108, 

 tab. 17. fig. 10. 



I. Ballynahinch ; Lough Aunierin ; Lakes near Recess ; 

 Lake?, Clifden to Round stone ; Derryclare Lough ; Lakes E. of 

 Lough Bofin. 



4*4.17 



rfVar. trfncatum, nov. var. (PI. XXI. fig. 16.) 

 Var. apicibus truncatis et incisura mediana profundiore con- 

 stricta. 



Longr. 105 (x ; lat. 75 /z ; lat. isthm. 45 fx. 

 I. Derryclare Lough. 



95. C. pseudoconnatum, Nord. (Bes?n. Brasil. p. 214, tab. 3. 

 % 17.) 



Long. 47-5-51 ^ ; lat. 33-38 fx ; lat. isthm. 31-32-5 fx. 



I. Ballynahiuch ; Athry Lough ; Lakes east of Lough Bofin. 



II. Muckross ; Upper Lake of Killarney ; Adrigole. 



f tVar. constrictum, nov. var. (PL XXL fig. 17.) 

 Var. insignis et major, a forma typica differt multum pro- 

 fundiore constrictione. 



Long. 65 fx ; lat. 43 fx ; lat. isthm. 26 p. 

 I. Ballynahinch. 



t96. C. viride, Joshua, in Joarn. Bot. Feb. 1885, tab. 254. 

 fig. 3. — Colpopelta viridis, Corda, Almanac de Carlsbad, 1835, 

 p. 206, tab. 2. fig. 28.— Cosmarium Cordanum, Breb. in Pritch. 

 Inf. ed. 1861 ; W. Turner, in Journ. Boy. Micr. Soc. Dec. 1885, 

 P. 934, tab. 15. fig. 4 ; West, in Journ. Boy. Micr. Soc. Feb. 1889, 

 p. 18, tab. 3. fig. 23. 



ttForma minor. 

 Long. 31-32-5 /i; lat. 18-19 ji ; lat. isthm. 12'5-15/i. 

 I. Derryclare Lough ; Ballynahinch. 



The following is a comparative list of the published dimen- 

 sions of this species : 



