Carcinological Fauna of India. 165 
preceding joint—has a close comb of articulating spines along its 
posterior border. 
The fourth (dorsal) pair, which are extremely slender, have the 
posterior border of the merus strongly spinate: the propodite is several 
times longer than the minute dactylus. 
The terminal joint of the male abdomen ends acutely. 
Hairs and bristles are sparsely present just as in the preceding 
species. 
The carapace of a large egg-laden female is 38 millim. long and 
30 millim. broad. 
In the Indian Museum are eleven specimens, representing adults and 
young of both sexes, dredged off the coast of Travancore at 430 fathoms, 
on a bottom which, though muddy, was abundantly covered with coral. 
Family II. LATREILLIDA. 
Key to the genera of the Family Latreillide. 
1, Carapace subquadrilateral. Antenna long. All seven 
abdominal segments distinct in both sexes ... ... LATREILLOPSIS. 
II. Carapace piriform, its anterior portion forming a long 
subcylindrical “neck.” Antenna short. The 4th, 5th, 
_ and 6th, abdominal segments of the female are fused 
together ... Ate St tae .. LATREILLIA. 
LaTREILLopsis, Henderson. 
Latreillopsis, Henderson, Challenger Anomura, p. 21: Ortmann in Bronn’s 
Thier-Reich, v. ii. Arthropoda, p. 1156. 
Carapace subquadrilateral, deepish, with vertical side-walls, not 
entirely concealing the basal joints of the legs: the regions fairly well 
indicated. Front of moderate width, ending in a spiniform rostrum on 
either side of which is a long slender divergent “ supra-ocular”’ spine. 
Linea anomurica present, most distinct posteriorly. 
Eyes as in Latreillia, large and borne free at the end of slender 
eyestalks of remarkable length. Antenne long, freely movable from 
their base; the peduncle slender, cylindrical, and consisting of four 
joints, as usual, 
Epistome well demarcated from the palate. Buccal cavern much 
broader in front than behind, the efferent branchial channels very well 
defined. Though the external maxillipeds do not quite meet across 
the buccal cavern they are distinctly operculiform, owing to the expan- 
sion of their merus. 
Chelipeds long and slender but much shorter than the first 3 pairs 
of legs: their joints, like those of the legs, are cylindrical, and the 
palm in the male is enlarged and club-shaped. 
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