12 Records of the Indian Museum. [Vol. XVI, 



marginal and an end-spine and carries five setae internally. The 

 endopod is two-jointed Endopod i bears two and endopod 2 

 seven setae. 



The yd pair of legs. — The basal portion is two-jointed. The 

 exopod consists of three joints; exopod i bears a claw-like 

 marginal spine and one seta ; exopod 2 has no spine and one seta ; 

 exopod 3 bears one marginal spine, one end-spine and five setae. 

 The endopod is two- jointed, the joints bearing 2 and 7 setae 

 respectively. 



The 4th pair of legs. — The basal portion is two-jointed. The 

 exopod consists of three joints ; exopod i bears a claw-like mar- 

 ginal spine and one seta ; exopod 2 bears a claw-like marginal 

 spine and one seta; exopod 3 bears a claw-like marginal spine and 

 one end-spine, and there are 5 setae. The endopod is two-jointed ; 

 the joints bearing 3 and 7 setae respectively. 



The ^th pair of legs. — Each consists of a basal segment bearing 

 an external seta, and as is usual in this genus a single- jointed 

 exopod and endopod. 



The exopod is curved and ends in a sharp point : about mid- 

 way along its external margin is a single small spine, and the 

 distal fourth of the inner margin is finely serrated. The endopod 

 is about I the length of the exopod and also terminates in a sharp 

 point, and on the distal part of the external margin bears four 

 teeth. 



cf . Total length = i'i6 mm. 



Proportional length of cephalo-thorax and abdomen — 



64-6 : 35-4 = loo-o. 



The head and thorax are the same as in the $ . 



The abdomen consists of five segments and the furca : of the 

 abdominal segments the anal is very short and the 2nd and 3rd 

 are by far the longest. 



The furcal rami are very slightly asymmetrical, the right 

 ramus being slightly the longer : the furcal setae are similar 

 to those of the $ . 



The proportional lengths of the segments and furca are as 

 follows : — 



II : 22 : 21 : II : 3 : 32 = 100. 



The 1st antennae. — That of the left side is unmodified and re- 

 sembles that of the female, though in several cases the segments are 

 not as completely fused, thus rendering it possible to determine the 

 lengths of individual segments : — 



-Segments L_i 



2-4:5-6:7 : 8 : 9 : 10 : ii : 12 : 13 : 14 : 15 : I6 : 17 



44 : 103 : 33 : 18 : 24 : 12 : 36 : 36 : 27 : 36 : 36 : 41 : 84 : 62 : 62 : 



19 : 20 : 21 : 22 : 23 : 24 : 25. 



68 : 54 : 56 : 47 : 59 : 44 : 18 = 1000. 



The right antenna is modified to form a grasping organ ; the 

 various segments have the following proportional lengths: — 



