29i FRESHWATER ALQM OE THE WEST INDIES. 



Earn. Synedre^:. 



*79. Stnedra pulchella, Kuetz. Bacill. p. 68, t. 29. f. 87. 

 Hah. In small stream, Roseau Valley, Dominica. No. 1176. 

 In stream, Wotten Waven, Dominica. No. 1219. 



*80. S. radians, Grun. ; Van Heurck, Diatom. (Engl, transl.) 

 p. 312, t. 10. f. 423. 



Hal. In stream, "Wotten Waven, Dominica. No. 1219. 



Earn. Diatome^;. 



*81. Denticela tenuis, Kuetz. Bacill. t. 18. f. 8. 



Yar. INFLATA, Van Heurck, Diatom. (Engl, transl.) p. 352, 

 t. 11. f. 462. D. inflata, W. 8m. 



Hah. In small stream, Eoseau Valley, Dominica. No. 1176. 

 Head of Castle Bruce River, Dominica. No. 14S4. 



Earn. NiTzscniEiE. 



82. Nitzschia dissipata, Grun. ; Van Heurck, Diatom. 

 (Engl, transl.) p. 391, t. 16. f. 525. (? N. minutissima, W. 8m. 

 Brit. Diat. p. 41, t. 13. f. 107.) 



Hah. On Leaves in warm stream, road to Eoseau Lake, 

 Dominica (2500 ft.). No. 1178. On leaves, "Wotten Waven, 

 Dominica. No. L240. On ground, crater of Grande Soufriere 

 (2000-3000 it.), Dominica. No. 1S32. 



*83. N. obtusa, TV. 8m. Brit. Diet. i. p. 39, t. 13. f. 109. 



Yar. nana, Grun. ; Van Heurck, Diatom. (Engl, transl.) 

 ]>. 39S, t. 1(5. f. 539. 



Jlnh. On bank, at roadside, Emsol, near Eoseau, Dominica. 

 No. 9S3. 



84. N. lineabis, IV 8m. Brit. Diat. i. p. 39, t. 13. f. 110. 

 Hah. In small Btream, Roseau Valley, Dominica. No. 117(5. 

 Var. tenuis, Grun. X. tennis, W. Sm. 

 Huh. On ground, crater of Grande Soufriere (2000-3000 ft.), 

 Dominica. Nob. 1832 and 1835. 



85. N". COMMTJKIS, Bdbenh. ; Flor. Europ. AL/ar. i. p. 159. 



Hah. Among Nbstoc muscorum, Agardh, on sides of road, Fort 

 Charlotte, St. Vincent No. 203. On bank, at roadside, Emsol, 

 near Roseau, Dominica. No. 983. 



