198 



Records of the Indian Museum. 



[Vol. XXIV, 



widely separated from the others and is placed on the carapace, 

 the second being immediately above the orbit, the foremost near 

 the tip and the rest more or less evenly spaced. On the lower border 

 there are from 1 to 3 teeth, nearly always 2/ placed at about the 

 middle of the rostral length. 



The supra-orbital spine is conspicuous. The lower orbital angle 

 is rounded, with the antennal spine below it ; the hepatic is placed 

 behind the antennal but on a lower level. The eyes are large and 

 somewhat depressed. The cornea is wider than the stalk and 

 usually shows traces of two concentric bands of dark pigment. 

 The ocular spot touches the cornea. 



The basal segment of the antennular peduncle has a short 

 lateral process and the terminal spine (text- fig. 48a) is short, 



reaching little beyond the 

 articulation of the second 

 segment ; the margin be- 

 tween the spine and the 

 articulation is nearly 

 straight. The second and 

 third segments are slen- 

 der. The free portions of 

 the two rami composing 

 the outer antennular 

 flagellum are extremely 

 short ; the fused portion 

 comprises some 9 to 11 

 segments. In the male 

 the total length of the 

 stouter ramus is not much 

 less than that of the 

 peduncle, in the female it 

 is proportionately rather 

 shorter. The antennal 

 scale (text-fig. 48b) is 

 nearly 5 times as long as 

 wide; the outer margin 

 is slightly concave, ending in a spine which extends far beyond the 

 lamella. The apex of the lamella is broader than in most of the 

 related species. 



The third maxilliped bears a small arthrobranch. The exopod 

 reaches the end of the antepenultimate segment, the latter 

 bearing a few short spines on its outer margin. Excluding the 

 terminal spine the ultimate segment is about three-quarters the 

 length of the penultimate. 



The first peraeopods (text-figs. 49a, b) are long and slender ; 

 in adult males the mero-carpal articulation reaches at least to the 

 end of the second antennular segment. The carpus in adult males 



Text-fig. 48. — Periclimenes agag, sp. nov. 



a. Part of antennular peduncle. 



b. Antennal scale. 



1 Of twenty-seven specimens one has 1 ventral tooth, twenty-four have 2 teeth 

 and two have 3. 



