190 



FBESH-WATEB ALGJE FROM BURMA. 



31. Cylindkocvstis diplospoba Lund. Desm. Suec. 1871, p. 83, t. 5, f. 7. 



Var. majob West, Alg. W. Ireland, 1892, p. 131, t. 20, f. 3 ; W. & 

 G. S. West. Brit. Desm. 1904, p. 61, t. 4, f. 42, 43. 



Long. 88-92 M ; 44-46/*; lat. constrict. 41-12/*; (PL xni, fig. 1). 

 JIab. — Mansang near Ilsipaw (No. 24193). 



The Burmese specimens were slightly smaller than the original British examples, but were other- 

 wise very similar. Some individuals were enveloped, in a large irregular mass of mucus. 



Genus: Net hum (Nag.) W. & G. S. West. 



32. KtTkiuM Digitus (El.renb.) Itzigs. & Rothe in Eabenh. AJg. 1856, No. 508; 



W. & G. S. West. Brit. Desm. 1, 1904, p. 61, t. 6, f. 14-16. 

 Ha b— Between Thingan-nyi-naung and Kawkareik. In the side channel of 



stream (No. 24483). 



a 



Genus: Penium Br^b. 



33. Penium Navicula Breb. Liste Desm. 1856, p. 146, t. 2, f. 37; W. & G. 



S. West, Brit. Desm. 1904, p. 75, t. 7, f. 12-15, 19. 

 Loug. 35-42/*; lat. 11-13^. 



I 



» / ai ^ Spiin Z^ ' he riTer baDk at Bhamo ^ No - 21501 )- In *e Kangyi at 



E£ ( ( N°o. St BetWCen Tl ^ n -^~^ - **»*• * * chaafel of 



34. Penium Clevei Lund. Desm. Suec. 1871, p. 83, t. 5 11 

 Forma elongata. ( PL xin, fig. 2 j. 



Forma cellulis elongatis et paullo anffustioribus. 



M 



g. 1 



Long. 128/*; lat. £3-5-34-5^; lat. isthm. 30 

 Bab.— Mansang near Hsipaw (No. 24193). 



35. Penium adelochondbum Elfv. Anteck. Finska Desm. 1881, p. 17 t 1 f 13 



Forma minor et. paullo brevior. ' 



Long. 26/*; lat. 12 M ; lat. apic. b'8p. (PL xm, fi 

 Bab.— In the Kangyi at Mudon (No. 24505). 



Forma cellulis leviter constrictioribus et apicibus latioribus 



p. 197, t. 5, i. 7£ 



Long. 78^; lat. 38^; lat. isthm. 34,*. (PI 

 Bab.— In swamp, Katha (No. 22677). 



%. 14) 





