368 Records of the Indian Museum. Vor. MIs 
groove, especially well marked in this portion of the carapace. 
The branchiostegal spine is strong and extends forwards beyond 
the level of the eyestalks. Behind it is another small tooth, placed 
further forward than any others of the dorsal series. Exclusive 
of the spines on its frontal margin, there are in all eleven teeth 
on the carapace: none of these teeth form the terminations of 
carinae. 
In the male each of the last three thoracic sterna bears a 
median keel, which ends anteriorly in a small tooth: these keels 
are absent in the female. The first and second pairs of legs 
are adjacent at the base in the male and are not separated by the 
antrorse spine found in P. hendersonz. 

Kic. 4—Pontophilus pilosus, sp. nov. 
a. Antennule. c. First peraeopod. 
b. Antennal scale. d. Second peraeopod. 
The eyes are stout and short. In both sexes the distal mar- 
gin of the stalk, on its upper and inner side, is produced beyond 
the cornea to a small but conspicuous papilla. 
The basal segment of the antennular peduncle (text-fig. 4a) 
bears a stout ventral spine and another at the distal end of its 
outer margin. The lateral process is peculiar in form. It is fully 
as long as broad and is furnished anteriorly with two spines, the 
outermost the largest and the inner bearing a small internal spinule. 
The outer flagellum does not appear to be appreciably stouter in the 
male than in the female and is shorter than the peduncle. 
_ The antennal scale (text-fig. 4b) is broad, its breadth in a large 
female being more than half its length. The outer margin is con- 
vex and terminates in a spine which does not reach as far forward 
as the lamella and is separated from it by a broad U-shaped gap. 
