io8 Records of the Indian Museum. [Vol. X, 



The rostrum is triangular in dorsal view and its breadth at 

 the base is fully two-thirds its length. In transverse section it 

 would be T-shaped as in Tozeuma, for the inferior part of the 

 blade is well developed, the dorsal part is flat or only a trifle 

 convex, and there is a sharp ridge on either side running to the 

 back of the orbit. This lateral ridge is produced in the vicinity of 

 the eye and forms an eave which conceals the greater part of the 

 eyestalk. In lateral view the dorsal line of the rostrum is 

 straight and greatly depressed, forming an angle of nearly 45" with 

 the mid-dorsal line of the carapace. The total length of the 

 rostrum is about half that of the carapace; it extends a little 

 beyond the apex of the antennal scale and terminates in a sharp 

 upwardly directed point. On the dorsal surface, close behind the 

 apex, there is a conspicuous movable spine. The greatest depth 

 of the inferior blade is nearly one-half the total length It is 

 strongly curved in lateral view, excavated at the base for the 

 accommodation of the eyes, and is devoid of spines. 



The corneal part of the eyes is well pigmented and is a little 

 narrower than the stalk. 



The antennular peduncle is peculiar. The basal segment 

 appears as if moulded round the eye ; in lateral view it is almost 

 semicircular in .shape and distally it projects upwards in front of 

 the cornea in the form of a thin lamella. The lateral process is 

 large, parallel- sided and apically truncate ; it projects outwards 

 at right angles from the segment and its distal portion, which is 

 somewhat reflected upwards, is pressed closely against the eyes. 

 The second and third segments are extremely short. The upper 

 ramus is thickened and (in the female) reaches a little beyond the 

 apex of the rostrum ; the lower ramus is more slender and a trifle 

 longer. 



The antennal scale (fig. 2) is about twice as long as broad and 

 is very strongly narrowed apically. It terminates in a stout spine 

 and on its outer margin there is a series of small movable spinules, 

 twenty to twenty-two in number Its dorsal surface is covered 

 with small papillae similar to those found on the carapace ; the 

 ventral surface is beset with very long finely plumose setae (fig. 3), 

 a few occurring on the upper surface also. 



The mandible is furnished neither with incisor-process nor 

 palp. The second maxillipedes (fig. 4) are peculiar in that the 

 ultimate segment of the endopod is not applied as a strip along 

 the whole length of the penultimate, as in the more typical Caridea, 

 but is terminal in position resembling that found in the more 

 primitive families, the Pasiphaeidae and Bresiliidae. The epipod 

 is entire and not partially divided into branchial plumes as in many 

 Hippolytidae. 



The third maxillipedes reach a little beyond the rostrum and 

 possess an epipod but no exopod. The basal segments are very 

 broad and the ultimate, which is about twice the length of 

 the penultimate, bears a series of eight spines on its margins 



(fig. 5). 



