8 CLEVE, PLANKTON FROM THE INDIAN OCEAN AND TIIE MALAY ARCIIirELAGO. 



Oithona plumifera Baird. Arahian Sea (13° N. 56° E. to 8° N. 75° E., t. 26,6, mean 

 of 4 obs. max. 28, 20, min. 25,6; .<?. 35, 61, max. 36,37, min. 34,4o). Malay ArcMp., May 

 to September, c. {t. 27,3 mean of 14 obs. max. 28,8o, min. 25,3; s. 32, so, max. 33,88, 

 min. 31,62). 



Oithona rigida Giesbr. Malay Archijh, June, September, -|- {t. 28, 19, mean of 5 

 obs. max. 28, so, min. 26, so; s. 32,64, max. 33, 71, min. 31, si). 



Oithona simllis Claus. Arahian Sea (13°— 10° N. 52°— 64° E., t. 25,i— 26,7; s. 36,2o 

 — 35,77). Malay Archip. (? young specimens). 



Oncaea conifera Giesbr. Malay Archip., May to September, c. (t. 27, r,, mean of 11 

 obs. max. 28, so, min. 25,3; s. 32,74, max. 33,S8, min. 31,62). 



Oncaea media Giesbr. Arahian Sea (12° N. 46° E. to 9° N. 69° E., t. 24,8—27,7; 

 s. 36,20—34,98). Indian Ocean. 6° N. 86°— 89° E. {t. 27,8—28,5; s. 33,34—34,07). Malay 

 Archip)., Ma}' — July, September, c. {t. 26,7, mean of 9 obs. max. 28, 50, min. 25,5; .?. 33,29, 

 max. 33,88, min. 32,43). 



Oncaia mediterranea (Claus). Arabian Sea (12°— 10°N. 46°— 64° E., t. 24,8—26,7; 

 s. 36,20—35,77). Indian Ocean (8° N. 75° E., t. 28,2; s. 34,4o). 3Ialay Archip., May to 

 July, -)- {t. 26,4, mean of 5 obs. max. 28,35, min. 25,5; s. 33,42, max. 33, so, min. 32, 91). 



Oncaea vennsta Philiiti. Arabian Sea (13° N. 49°— 52° E., t. 24,75— 25, 1; s. 36,2o). 

 Malay Archip., May to July, c. (Bali Sound to Timor, t. 26,2, mean of 7 obs. max. 28,35, 

 min. 25,5; s. 33,54, max. 33,88, min. 32, 91). 



Paracalanns aculeatus Giesbr. Arahian Sea (12° N. 46° E. to 10° N. 64° E., if. 25,4, 

 mean of 5 obs. max. 26,7, min. 24,8; s. 36, i5, max. 36,37, min. 35,77). Indian Ocean, 

 6°N. 92° E. (t. 27,8; s. 33,34). Malay Archip., May— July, September {t. 26,98, mean of 

 10 obs. max. 28, so, min. 25,5; s. 33, 07, max. 33,88, min. 31, si). 



Paracalanns parvns Claus. Arabian Sen (12°— 10°N. 46°— 64° E., f. 24,8—26,7; 

 s. 36,20—35,77). Lidian Ocean (7° N. 79° E. to 4° N. 100° E., t. 28,i, mean of 5 obs. 

 max. 29,35, min. 27,7; s. 33,32, max. 34,38, min. 30,84; 36° S. 89° E., +, t. 19; s. 35,32). 

 Malay Archip., May to September, c. {t. 27,2, mean of 12 obs. max. 28,7o, min. 25,3; 

 s. 33,08, max. 33, so min. 32,22). 



Pleuromma abdomiuale (Lueb,). Malay Archip., rr. (May, Bali Sound, t. 25,3; 

 s. 32,94). i\-,;. r,\ .:. ;...:!'■ ,/ ,,;; '1:1-' .-: u 



. :, Pleuromma gracile Claus. Malay Archij)., rr. (May, Bali Sound, t. 25,4; s. 32,93). 



Pontellina plumata Dana. Malay Archip., rr. (July, Semau Sound, t. 25,6; s. 33, 70). 



Psendodiaptonms Aiu-ivillii Cl., n. sp. Malay Archip)-, June, July, r. {t. 26,8; 

 .s. 33,71). 



Reticulina Anvivillii Cl., n. sp. Malay Archip., Gaspar Sound, September, rr. {t. 



28,5; s. 32,22). ^ .(i,-.f;;..,vi<(, ,,v.;:;; .: 



Rliinocalanns cornutus Dana. Malay Archip., r. (May, Bali Sound; July, Timor 

 and Semau Sound, t. 25,6; s. 32, 91 — 33,88). 



Sapphirina auronitens Claus. Malay Archip., rr. (June at Flores, t. 26,6; s. 33, so). 



