250 G. M. Giles — Kotes on the Araphipoda of Indian Waters. [No. 3, 



These differences are so considerable tliat I feel constrained to pro- 

 pose for it a new genus, characterized as below. 



Antennules short, hidden by the cephalon. Antennce obsolete (in the 

 female). Second and third thoracic appendages small, subequal, sub- 

 chelate, the palm of their forceps formed by the prolonged posterior 

 inferior angle of the carpopodite ; sixth and seventh pairs larger than 

 the rest : hindermost pair very small, the basopodifce alone well deve- 

 loped, while the distal joints are very small and ill-defined. Fourth and 

 fifth segments of pleon fused together. 



10. Elsia indica, n. sp., PI. VI., Figs. 2—4, ? . 



A single specimen (female) was taken in the surface net in Bombay 

 Harbour. 



Total length about 4 mm. 



Colour deep sepia-brown througbout, without spots or blotcbes. 



Head ovate, prolonged in front into a sort of proboscis, the 

 lower surface of which is hollowed out ; at the back of its lateral 

 faces are the large compound eyes. 



Thorax much compressed forming nearly half of the entire body 

 length. Coxal plates not markedly differing in depth, the fourth and 

 fifth being somewhat the deepest, while those in front of and behind 

 these gradually diminish. The last three segments are subequal and 

 larger than the rest, the first especially being very narrow. 



Abdomen broader and less compressed than the thorax and as lang 

 as the last four segments of the latter. The first three segments sub- 

 equal and larger than any of those preceding them. The fourth and 

 fifth blended together, not half as long as the third, and the sixth 

 very small. 



The antennules are very short, consisting of a peduncle formed of 

 three short, but stout, joints and a rudimentary flagellum consisting of 

 two pieces, of which the first is tumid and pear-shaped, and the second 

 slender and digitiform. The last joint of the peduncle and the first 

 flagellar articulation are furnished with a few short soft hairs. 



Antennce obsolete. 



The gnathites generally, including the maxillipedes, appear small 

 and ill-developed. 



The second and third thoracic appendages are small and subequal, 

 the hinder being but a trifle the larger, neither approaching the head in 

 length. They closely resemble each other, having a complex unarmed 

 subchela formed by the prolongation of the antero -inferior angle of the 

 carpopodite opposed to the somewhat dilated propodite, and the dacty- 

 lopodite being small and claw-shaped. The fourth and fifth pair are 



