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



The 1st abdominal segment bears a slight rounded prominence 

 posteriori}^ near the right border. 



The f ureal rami are symmetrical, and the f ureal setae are five 

 in number, of which the 2nd is longer and stouter than the others. 



The 1st antennae. — The proportional lengths of the various 

 segments are as follows : — 



Segments i : 2-4 : 5 = 6 : 7 : 8-9 : lo : n : 12-13 : 14 : 15 : 16 : 17 : 18 : 19 : 

 64 : 108 : 32 : 37 : 23 : 44 : 23 : 25 : 71 : 34 : 37 : 44 : 57 : 57 : 71 .- 

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



54 : 54 : 44 : 57 : 44 : 20 =1000. 



There are oblique rows of hairs on segments 7 to 18 very like 

 the rows of fine spines on the segments of the antenna in A. 

 tortaniformis. 



The 2nd antenna is of the same form as in /I. tortaniformis. 



The 1st and 2nd maxillae are as figured. 



The maxilliped terminates in the usual segment bearing four 

 long spines, but on the margin of the ist segment there are only 2 

 spines. 



The 1st pair of legs. — This appendage closely resembles that of 

 A. gravelyi but differs in that exopod 3 bears two fine hair-like 

 marginal spines as well as the usual end-spine. 



The 2nd-4th pair of legs. — As in A. gravelyi. 



The $th pair of legs. — Each basal segment carries a marginal 

 seta; the exopod is long and curved, terminating in a sharp 

 point; the inner margin is serrated along the distal \, and on 

 the outer margin is a single spine: the endopod is quite short, 

 being only \ the length of the exopod, and it bears 2 or 3 teeth 

 distally on its outer margin. 



cf . Total length =: i'25 mm. 



Proportional length of cephalo-thorax and abdomen — 



65 : 35 = 100. 



The abdomen consists of five segments, having with the furcal 

 rami the following proportional lengths : — 



II : 21 : 18 : 9 : 5 : 36 = 100. 



The furcal rami are not quite symmetrical, the right one being 

 slightly the longer : the furcal setae are as in the 5 . 



The 1st antennae. — That on the left side is unmodified as in the 

 2 and its terminal joints have the following proportional lengths : — 

 Segments " : 12 : 13 : 14 : 15 : 16 : 17 : iS : 19 : 20 : 21 : 22 : 23 : 24 : 25 . 

 27 : 34 : 34 : 34 : 34 : 48 : 62 : 66 : 70 : 52 : 55 : 39 : 55 : 39 : 20. 



The segments are furnished with oblique rows of hairs as 

 in the 2 . 



The right antenna is modified to form a grasping organ : 

 segments 13 to 17 are somewhat expanded and the knee-joint 

 is situated between segments 18 and 19. The " endabschnitt " 

 consists of two joints only ; segments 19 to 21 and 22 to 25 

 are fused together. 



