Vol. IX, Nos. 8-9.] Biological Work of the ‘‘ Investigator.’’ 367 
[W.9.] 
pcb Barat —-Examples of a species of Sagitta were 
commo 
Palichonia: —Numerous larval forms. 
Coelenterata.—Pleurobrachia sp. were comm 
vhs sor bia —Examples of Clobigerina sa Sinmeein 
Radiolaria.— Examples of Acanthometron, sp. 
Diatomacea —Coscinodiscus. 
Rhizosolenia. 
Thalassiosira. 
As regards the results obtained at stations 395 and 396, 
there is very little tosay. The type e of Plankton approximates 
very closely to that of the region to the west and south-west 
of the South Moscos Islands (Sewell, 1912 (b), area IV). It is 
of the same pink tinge and contains numerous Radiolaria and 
a few Ceratium tripos. 
The surface tow-net at station 393 (7.21.06 N.: 85.07.15 E.) 
is of interest, in that, firstly, it serves as a control to the 
Mid-water ‘Trayi taken at the same station, and secondly, it 
ed a species of Copepod that I have not hitherto obtained 
nthe Bay of Bengal. The following Copepoda (Gymnoplea) 
were identified :— 
Acrocalanus gracilis, Giesbr. 
Acrocalanus longicornis, Giesbr. 
). 
ah oa furcatus ( 
Clausocalanus eaessraes (Dana a). 
Gldeacehlinais arcuicornis, Var ewe nov. 
a 
Temora stylifera (Dana). 
Undinula vulgaris (Dana). 
This was the first occasion on which I had been fortunate 
enough to obtain examples of Centropages ca ni = 
addition to the above there were numerous examples 0 Oncea 
and Sapphirina 
sae the close of the survey season 191 1-12, the 
