338 Records of the Indian Museum. [Vor. VII, 
the combined length of the last two segments. All the spines 
have serrated margins. 
At first sight this specimen appeared to be an example of 
Pseudodiaptomus lobipes, Gurney (1907, p. 27, pl. I, figs. 3—5) 
but a closer comparison revealed several differences as regards 
the serration of the spines on the 5th pair of legs and the 
spinulation of the Ist abdominal segment, and the furcal setae 
are entirely different. 
Unfortunately Gurney’s type specimens appear to have been 
lost by him and have never been deposited in the Indian Museum 
but I have examined other specimens from the original locality 
and have come to the conclusion that the specimen is not identi- 
cal. I therefore propose to give it the above name after Lt. A. 
Bingham, RI.M., who for many years has been Ist Lieutenant 
on the R.I.M.S. ‘‘ Investigator ’’ and has personally assisted in 
the collection of much valuable marine material. 
Genus Centropages, 
Centropages alcocki, sp. nov. 
exe ie Sent 7 
Numercus examples of both males and females were present. 
@ Total length 1:2 mm. 
The head and Ist thoracic segment are separate as also are 
the last two thoracic segments. The posterior border of the last 
segment is rounded and near the ventral border presents a short 
backwardly directed spinous process. The head is rounded ante- 
riorly and terminates in a small bifid rostrum. 
The abdomen possesses three segments and is symmetrical, 
the proportional lengths of segments and furca being 35: 22: 20: 
15. ‘The rst segment bears on each side a clump of small needle- 
shaped spines. The furcal setae are 5 in number and of these the 
ond is about twice the length of the others. 
The 1st antennae are short and do not reach to the end of 
the thorax; the proportional lengths of the segments are as fol- 
lows :— 
Segments— 
I. 2. 3-4. 5.6. 7- 8..9- 10. LI. 22. 13. 14s U5. 16. 17. 18. 19. 20. 21. 22. 23. 24. 
15.9. 3: 4.4. 4-4. 5. 5. 6. Gi) Of 03 as pc 6) 16:07. Vb lh Ee aoa ee 
‘here are no spines on any of the proximal segments. 
The 2nd antennae and mouth-parts closely resemble those of 
C. typicus. 
The 1st—4th pairs of legs in their general structure resemble 
those of other members of the genus, but the terminal spines of 
the exopods differ from those of other species in that the arma- 
ture of the saw is composed of a series of coarse teeth separated 
by comparatively wide intervals, more neatly resembling the con- 
dition found in Temora. ‘The spine on the 2nd joint of the exo- 
