236 



FRESH-WATER ALG'JE FROM BURMA 



222. Navicula oblonga Kiitz. 



Mab. — In the mountains east of Kawkareik (No. 24450). 



223. Navicula Rabenhorstii (Ralfs) Grun. 



V 



Mab.— In the river Irrawaddy, Thayetmyo (No. 22999). 



224. Navicula cryptocephala Kiitz.; W. Sm. Brit. Diat. p. 53, t. 17, f. 155 

 Mab.— In river-bed, Kyaukse (No. 22263). Hsipaw (No. 24120). 



225. Navicula Semen Ehrenb. 



Mab.— Near the river Bhamo (No. 21503). 



226. Navicula tumida W. Sm. 



iV. anglica Ralfs. 

 Mab.— In the mountains east of Kawkareik (No, 24450). 



227. Navicula dicephala Ehrenb. 



Mab. — Mansang, near Hsipaw (No. 24193). 



* 



228. Navicula elliptica Kiitz. var. oblongelly Nag. 



0. 24450). 



Mab.— In the mountains east of Kawkareik 



229. Navicula cdspidata Kiitz. 



Mab .—Momavk, east of Bhamo (No. 21551). 



230. Navicula Ihidis Ehrenb. 



N. firma W. Sm. Brit. Diat. p. 48, t. 16 f 



138 



t-sxi t K ^L2, ifr ii tter ~^^-» - 



Mab 



Var. Amphirhynchus (Ehrenb.) De Toni, Syll. Alg. ii, p . 154 

 In springs on the river bank, Bhamo (No. 21501) 

 Var. producta (W. Sm.) Van Heurck 



Bab.-l. ditch, Vizagapatam (No. 17916). Singaing, Kyaukse District (No. 22139) 



231. Navicula tuscula Ehrenb., 1840. 



Mab TZTu T ata KatZ * BaCi,L ^ P- l06 > *> ^ *• 9. 

 Mab.-ln ditch, Vizagapatam (No. 17916). 



232. Navicula mutica Kulz 





Mab.-\ n river, Myawadi (No. 24451) 



• 



Genus: Vanheurckia Br6b. 



233. Van heur c ki a 





^T^TTi ( 2 E 4 h r b0 &eb - ; Va » *«*. ^tom. (Engl 



