168 Carcinological Fauna of India. 
Chelipeds long and slender, but always much shorter than the first 
three pairs of legs: all the joints are slender, except the palm, which in 
one or both sexes is club-shaped. Fingers shorter than the palm. 
First three pair of legs very long and slender; some of their joints 
are spiny. 
Fourth pair of legs more or less reduced in length, subdorsal in 
position. 
The abdomen of the male consists of seven separate segments; that 
of the female consists of five segments—the 4th 5th and 6th being fused 
together. 
The branchial formula given by Bouvier for Latreillia elegans, and 
verified by myself for Latreillia pennifera, is as follows :— 
Somites and Pade: Arthrobranchiz. 
hei : _ Pleuro- 
falter Ms SEL Antone Posterior. ee Te 
VIL. .. O ep. 0 oe 0 0 = O ep. 
VIII. w. L+ep. 0 0 0 = l+ep. 
IX. so. O-+ep. 1 1 0 = 2+ep. 
X. 0 1 ui 0 = 2 
Xl. 0 0 0) 1 = 1 
XII. 0 0 0 1 = 1 
XIII. 0 0 0 1 = 1 
XIV. 0 0 0) 0 = 0 
1+3 ep. 2 2 3 = 8+3ep. 
Distribution: Atlantic coasts of North America between 38° and 
40° N.: off the Canaries and Azores: Mediterranean Sea: Bay of 
Bengal and Andaman Sea: Japanese Seas: New South Wales coast. 
28. Latreillia pennifera, n. sp. 
Very closely related to L. elegans, Roux. 
‘Carapace smooth, without spines, though the hepatic regions have 
a strong bulge: the “ neck” is rather slender (equally so in both sexes) 
and is nearly as long as the rest of the carapace measured in the middle 
line. 
Rostral spine short, acute, strongly deflexed. Supraocular spines 
as long as the eyestalks, about half the total length of the carapace 
(‘neck ” included) measured in the middle line; occasionally bearing 
some tiny secondary spinules. 
Antennules slightly longer than the eyestalks: the outer flagellum 
longer and very much coarser than the inner. 
The chelipeds, which are slightly longer in the male than in the 
female, are between 33 and 4 times the total length of the carapace : 
618 
