ix. NORE Ss ON TAH SURE ACHE-LEIVING 
COP BB iOsDRas Orr. Art ee AND Oris a NRG AT, 
ke ANP DASE 
By R. B. SEYMOUR-SEWELL, B.A., Capt., I.M.S., Surgeon- 
Naturalist to the Marine Survey of India, and Offg. 
Professor of Biology, Calcutta Medical College. 
(Plates xiv—xxiv). 
INTRODUCTION. 
Up to the present time, our knowledge of the species and 
distribution of surface-living Copepoda in the Bay of Bengal is 
confined to a paper by the late Mr. I. C. Thompson, who worked 
out a collection made by Captain Wyse of the S. S. ‘‘ Johannes- 
burg”? during a voyage from Delagoa Bay to Calcutta (‘‘ Re- 
port on two collections of Tropical and more northerly Plankton.’’ 
I. C. Thompson, F.L.S., Trans. Liverpool Biol. Soc., vol. xiv, 
1899-1900). Several extensive collections have, however, been 
made in neighbouring waters and the results are contained in 
the following papers :— 
(1) The Siboga collection, from the region between Borneo 
on the west and New Guinea on the east. ‘The 
Copepoda of the ‘* Siboga’’ Expedition. A. Scott. 
Leyden, 1909. 
(2) The collection made by Professor Herdman around 
Ceylon and worked out by I. C. Thompson and 
A. Scott. The Ceylon Pearl Oyster Fisheries and 
Marine Biology, pt. i, 1903. London. 
(3) The collection made by Professor S. Gardiner in 
the Maldive and Laccadive Archipelagoes and 
worked out by Dr Wolfenden. The Fauna and 
Geography of the Maldive and Laccadive Archi- 
pelagoes, vol. ii, 1903-1906. Cambridge. 
In addition to these I must mention other minor collections 
described in the following papers :— 
(4) Giesbrecht : Ueber pelagischen Copepoden des Rothen 
Meeres: Zoologische Jahrbucher, Syst. Abth., 
Band ix, 1897. Jena. 
(5) Cleve: Planktonic organisms from the Indian Ocean 
and Malay Archipelago. Kong Sv. Vet. Akad. 
Handlingar, Bd. 35, No. 5, 1901-02. Stockholm. 
(6) A. Scott: Some Red Sea and Indian Ocean Copepoda. 
Trans. Liverpool Biol. Soc., vol. xvi, 1902 = Liver- 
pool. 
