46 Memoirs of the Indian Museum. Vor. T¥s 
side, six marginal spines ; denticles 5-6, 11-12, and r.’’__ For further details Bigelow’s 
long and detailed description should be consulted. 
Squilla mantoidea is probably, as Bigelow has suggested, a near ally of the Medi- 
terranean S. mantis ; the mandibular palp, however, has not been examined. From 
all Indo-pacifie species with a single lateral process on the fifth thoracic somite it is 
easily distinguished by (1) the sharp anteriorly-bifurcated carina of the carapace and 
(2) by the large eyes with the cornea set transversely on the stalk. 
S. mantoidea is known only from a single specimen, a female 120 mm. in length, 
from Borneo (Bigelow). 
14. Squilla leptosquilla, Brooks. 
1880, Sguilla leptosquilla, Brooks, Voy. H.M.S. ‘Challenger,’ XVI, Stomatop., p. 30, pl. i, 
figs. I, 2. 
1894. Squtlla leptosquilla, Bigelow, Proc. U.S. Nat. Mus., XVII, p. 510. 
1899. Squilla leptosquilla, Alcock and Anderson, Ann. Mag. Nat. Hist. (7), III, p. 292. 
1904. Sguilla leplosquilla, Jurich, Stomatop. deutsch. Tiefsee-Exped., VII, p. 370, pl. xxv, 
figs. I, 2 (including var. dentata, p 372). 
The dorsal surfaces of the carapace and abdomen are finely rugose, but when 
dried appear polished. The carapace measured behind the antero-lateral angles is 
considerably less than half its median length. ‘The median carina is clear and distinct 
in front of the cervical groove, but is absent anteriorly for about half the distance in 
front of the small dorsal pit. The intermediate and lateral carinae are sharp and very 
conspicuous and the lateral margin is not angled posteriorly. Antero-laterally the 
carapace is produced as a short spine that reaches nearly as far as the level of the 
rostral base. 
The rostrum is a trifle longer than wide and reaches to the base of the ophthalmic 
somite. The lateral margins, which are not upturned, are rounded and converge to a 
subacute apex. In the middle of the dorsal surface there is a short but distinct median 
longitudinal carina. 
The eyes are rather small. ‘The breadth of the cornea is about equal to the greatest 
length of the whole organ and the corneal and peduncular axes are very oblique. The 
antennular peduncle is as long as the rostrum and carapace combined. ‘The two basal 
segments of the antennal endopodite are short and do not reach to half the length of 
the scale. 
There is no palp on the mandible. 
The outer inferior margin of the merus of the raptorial claw is broadly rounded. 
The carpus is grooved and ridged externally and the carina on its dorsal aspect is 
entire and terminates acutely close behind the distal margin. The outer end of the 
propodus is a little broader in the male than in the female and the pectinate margin is 
rather noticeably sinuous. The dactylus bears four slender teeth including the apical 
one and its outer margin is evenly convex in both sexes and projects as a small but 
prominent lobe near the articulation of the propodus. 
The last four thoracic somites possess well-marked submedian and intermediate 
