ALGiE OF WEST IRELAND. 177 



fVar. depressitm, Roy et Hiss. (Jap. Desm. p. 237, 

 tab. 268. fig. 14.) 

 Long. 27 ft ; lat. 27 fx ; lat. isthm. 7-5 ix. 



I. Nacoogarrow Lough. — II. Lower Lake of Killarney; Carran- 

 tuohill; Sugar Loaf Mt. 



f35. Stauhasteum Bieneakuat, JRabh. (Fl. Eur op. Alg. iii. 

 p. 200.) 



II. Adrigole. 



fVar. elltpticum, Wille. (Ferskv. Alg. fr. Nov. Semi. 

 p. 50, tab. 13. fig. 49.) 

 I. Derryclare, Shannacloontippen, and Nacoogarrow Loughs ; 

 near AVestport. — II. Near Lough Brin ; Adrigole ; Glengarriff. 



tt36. S. iiibe:r:n"icum, nov. sp. (PL XXIII. fig. 6.) 



8. mediocre, fere quarta parte longius quam latius, profimde 

 constrictum, sinu lineari et angusto ; semicellulse subtrapezicie, 

 angulis rotundatis ; a vertice visse triangulatse, lateribus rectis, 

 angulis late rotundatis ; membrana laevis. 



Long. 65 ix ; lat. 52 ix ; lat. isthm. IS ix. 



I. Near Westport. 



This differs from S. orbiculare, Ralf s, in its much larger size, its 

 flattened apex, and in the straight sides of the vertical view; 

 from S. globosum, Eoy et Biss. (Jap. Desm. p. 237, tab. 268. 



ft ■■ 



fig. 8), in its different sinus, apex, and membrane. 



37. S. Kjellmanht, Wille. (Ferskv. Alg. fr. Nov. Semi. 

 p. 50, tab. 13. figs. 50-53.) 

 • II. Glengarriff ; Carrantuohill. 



fig. 26. 



m 



I. Arderry Lough ; Lough Aunierin ; Clif den ; Lakes near 



3Ugh. — II. Carrantuohill ; 



Eecess, ^, e 



Adrigole ; near Lough Brin ; Mallow. 



ttVar. tbilixeatum:, nov. var. (PI. XXIII. fig. 7.) 

 Semicellulse a fronte visse scabriores quam forma typica, apice 

 extremo truncatse ; a vertice visse triangulares, angulis rotun- 

 datis et lateribus subrectis, serie subcurvata una granulorum 

 majorum intra marginem subrectum unumquemque. Usee var. 

 major quam forma typica est. 



Long. 48 fx ; lat. 40 lx ; lat. isthm. 15 ix. 

 I. Nacoogarrow Lough. 



