174 



Records of the Indian Museum. [Vol. XXIV, 



are both sharp and are situated nearly on a level with one another. 

 The eyes are large and stout, slightly flattened dorso-ventrally, and 

 the ocular spot is confluent with the cornea. 



Text-fig. 31. — Periclimenes leptopus, sp. nov. 

 Anterior part of carapace, rostrum, etc. 



The basal segment of the antennular peduncle is broad ; the 

 terminal spine of the outer margin is short and the lateral process 



reaches about to the middle of the seg- 

 ment. The two rami composing the outer 

 antennular flagellum are fused for a dis- 

 tance almost equal to the total length of 

 the peduncle, the fused portion consisting 

 of 8 to 10 elongate segments. The free 

 portions of both rami are extremely short. 

 The antennal scale (text-fig. 32) is narrow, 

 nearly 4 times as long as wide. The outer 

 margin is slightly concave and terminates 

 in a spine which reaches a little beyond the 

 apex of the lamella. 



The ultimate segment of the third maxil- 

 liped is scarcely more than three-quarters 

 the length of the penultimate. All the 

 peraeopods are very slender. The first pair 

 reaches beyond the scale by the length of 

 the chela. The carpus is a little shorter 

 than the merus and a little longer than the 

 chela ; the fingers have simple cutting edges and are about one-fifth 

 longer than the palm. 



The second peraeopods (text-fig. 33^) extend beyond the scale 

 by the whole length of the chela and carpus. All the segments 

 are unarmed. The carpus considerably exceeds the length of the 

 carapace (rostrum excluded) ; it is longer than the merus in the 

 proportion of 4 to 3 and is fully 2*5 times as long as the palm. 

 Its breadth at the distal end is about one-tenth its length. The 

 chela is intermediate in length between the merus and carpus 

 and the breadth of the palm is rather more than one-third its 

 length. The fingers are straight with terminal claws that cross 



Text-fig. 32. — Pericli- 

 menes leptopus, sp 

 nov. 



Antennal scale. 



