1032 CLEVE, P. T., PLANKTON FROM THE RED SEA. 



MurracytaB. 



Pyrocystis pseudoiioctiluca J. MüRR. — 16° N. 41° E. — 



Arabian Sea, Indian Ocean, whole tropical Atlantic. 



Cyanopliyceae. 



Trichodesinium erythrseum Ehe. — 28° N. 34° E. (temp. 

 19,65; sal. 40,82). — I noted this species abundantly from the 

 north of the Maldives, also from the Malay Archipelago and off 

 Brazil. 



Diatomaceas. 



Asterolampra marylandica Ehb. — 27° N. 34° E. — Arabian 

 Sea, Indian Ocean, tropical Atlantic. 



Asteromplialus reticulatus Gl. — 27° N. 34° E. — Malay 

 Archipelago. 



Bacteriastnim delicatuiuni Gl. — 27° N. 34° E. — Noted 

 from the Arabian Sea and temperate Atlantic. 



Ceratauliiia Bergonii H. Per. — 27° N. 34° E. — Temperate 

 Atlantic. 



Cliaetoceros coarctatus Lauder (=6". rudis Gl.). — ■ 16°- — 

 27° N. 41°^ — 34° E. — Arabian Sea, Indian Ocean, Malay Ar- 

 chipelago, tropical Atlantic. This species occurs almost always 

 associated with a small zoo.vcmthelhi-\ike organism. 



C. coutortus Schutt. — 22°— 27° N. 37°— 34° E. {temp. 

 23,65; soL 39,5). Temperate and northern Atlantic. 



C. diversus Gl. — 16—27° N. 41°— 34° E. — Indian 

 Ocean, Malay Archipelago, tropical Atlantic. 



C. (atlanticHS var. 2) exiguus Gl. — 27° N. 34° E. — 

 Southern Atlantic and between the Azores and the English 

 Channel. 



C. furca Gl. — 16°— 27° N. 41°— 34° E. — I noted this 

 species in the Arabian Sea. It occurs in the spring N. of the 

 Azores. 



