— 24 — 



Area: Red Sea, Malay Archipelayo; a very small foini occurs in the sub- 

 tropical N. Atlantic Ocean (Gleve). 



65. E. zodiaciis Ehbg., Kreideth. p. 71, PI. 4, f. 8; Leuduger-Fort- 

 morel, 1. c. p. 40; Gleve, Dial. f. the Sea of Java p. 7; Atlant. Plankt. 

 Organisms p. 326; PI. f. the Ind. Ocean and the Malay Archip. p. 21. 



10 (rr). 



Area: Neritic species found along the coasts of West-Europe, Malay 

 Archipelago, Yeddo Bay in Japan, Puget's Sound. 



Climacodium Gran. 



66. C. Fraiinfeldiamim Grun., Novara Exp. 1870, 102, PI. 1 a, f. 24; 

 Ostenfeld & Schmidt, PI. f. the Red Sea, etc. p. 1 56 ; Gleve, Atlant. Plankton 

 Organisms p. 314; C. Fraunfeldii Gleve, PI. f. the Red Sea, p. 1033; 

 Gleve, PI. f. the Ind. Ocean and the Malay Archipelago p. 1 9 ; C. Jacohi 

 Gleve, Phyloplankton p. 22, PI. 2, f. 18; ClimackUum Fraunfeldii Van 

 Heurck, Synopsis PI. 106, f. 5. 



2 (rr) — 3 (rr) — 7 (rr) — 10 (rr). 



Area: Tropical Atlantic Ocean, Red Sea, Indian Ocean, Malay Archipelago, 

 Pacific Ocean. 



Streptotheca Cleve. 



67. S. thamensis Gleve in Shrubsole, Journ. Quekett Microsc. Glub, 

 1890, IV, n. s. p. 259, PI. 13, f. 4-6; Phyloplankton p. 25, PL 2, f. 19; 

 Atl. Plankt. Organisms p. 353 ; Van Heurck, Treatise on the Diatomaceae 

 p. 463, f. 194; Ostenfeld & Schmidt, PI. f. the Red Sea, etc. p. 161; 

 S. maxima Gleve, PI. f. the Indian Ocean and the Malay Archip. p. 23 

 and p. 57, PI. 8, f. 5. 



I am unable to see any difference of specihc value between the Nortli 

 Sea species and the ^S". maxima described by Gleve from the Malay 

 Archipelago, but the details given by Gleve indicate the correctness of 

 Van Heurck in placing the genus in the neighbourhood of Climacodium 

 and Encampia. 



2(r) - .3(+) - 4(rr) - 6 (rr). 



Area: Along the coasts of West Europe, N. Atlantic Ocean (rare), Red 

 Sea, Malay Archipelago. 



Ditylium Bail. 



68. D. Sol (Van Heurck) Leuduger-Fortmorel, 1. c. p. 39 ; De Tqni, 

 Sylloge Algarum, Vol. II, p. 1018; Gleve, Atl. Plankt. Organisms p. 325; 

 PI. f. the Indian Ocean and the Malay Archip. p. 21 ; Triceratinm Sol 

 Van Heurck, Synopsis PI. 115, f. 1 (1881); A. Schmidt, Atlas d. Diatom. 

 Kunde PI. 152, f. 4, 5, 7-9. 



