82 Memoirs of the Indian Museum. (Vou. IV, 
men and telson are in most cases thickly strewn with small black chromatophores, 
which give the animal a decidedly dusky appearance. The chromatophores are aggre- 
gated on the longitudinal carinae and on the posterior margins of the abdominal and 
last three thoracic somites. The telson is often very densely pigmented all over except 
in the vicinity of the marginal denticles. On the uropods the endopod and basal seg- 
ment of the exopod are suffused with black at their distal ends and the proximal part 
of the ultimate exopodal segment is tinged with the same colour. 
In the Indian Museum are nineteen specimens registered as follows :— 
we 8 Off the S Coast of Arabia; 110 fms.,  ‘ Investigator.’ 103,82,!'73—84 mm. 
TSP 80902 Ne Sie be elo as. TYPES: 
“SS Persian Gulf. F. H. Townsend. 19,73 mm. 
30, Squilla supplex, Wood-Mason. 
Plate VI, fig. 69. 
1875. Squilla supplex, Wood-Mason, Proc. As. Soc. Bengal, p. 232, reprinted in Ann. Mag. Nat. 
Hist. (4), XVII, p. 263 (1876). 
1880. Sguilla supplex, Miers, Ann. Mag. Nat. Hist. (5), V, p. 20. 
1894. Squilla supplex, Bigelow, Proc. U. S. Nat. Mus., XVII, p. 511. 
1895. Squilla supplex, Wood-Mason, Figs. and Desc. of nine Squillidae, p. 4, pl. ii, fig. 2; pl. iii, 
fig. 2. 
This and the two succeeding forms may easily be recognized from all other species 
of the genus by the increased number of carinae (more than eight) on the abdominal 
somites. 
In Sguilla supplex the carapace and abdomen show no trace of punctuation. The 
carapace, measured behind the antero-lateral angles, is about half its median length 
excluding the rostrum. ‘The median carina is sharp and distinct except for its anterior 
bifurcation* which is obsolete. ‘The intermediate and lateral carinae are indistinct in 
the small type specimen but quite clear in the larger examples. The lateral margins 
are not angled in front of the posterior corners, but antero-laterally are produced as 
sharp spines, which, however, fail to reach as far forwards as the level of the rostral 
base. The breadth of the rostrum is a little greater than its median length and its 
upturned lateral margins converge gradually to the broadly-rounded anterior margin. 
Dorsally the rostrum is smooth except for an indistinct median carina in its anterior 
half. 
The eyes are short. The breadth of the cornea is about equal to the total length 
and the corneal and peduncular axes are set at right angles to one another. The an- 
tennular peduncle is shorter than the carapace. There is a three-segmented mandi- 
bular palp. 
The outer inferior margin of the merus of the raptorial claw is bluntly angled 
distally and the carina on the dorsal aspect of the carpus is entire, but terminates 
' Part of a haul of over 500 specimens. 
» In Wood-Mason’s figure it is much too clearly shown. 
