Carcinological Fauna of India. 169 
their joints are long, slender, and cylindrical, except the palm of the 
male, which is club-shaped : there are a few spines on the arm, but the 
other joints are smooth: the fingers are not half the length of the 
hand (palm). 
The first 3 pair of legs, though they increase slightly in length 
from before backwards, are not very dissimilar in length, the first 
pair being nearly 8 times the total length of the carapace. All their 
joints are slender: the merus is spinate, the carpus sparsely spinate, 
and the propodite is slightly dilated at the far end of the posterior 
border where there are a few spines. 
The last pair of legs are between 43 and 5 times the total length 
of the carapace and reach almost to—in the female even beyond—the 
end of the carpus of the last pair but one: the merus is rather sparsely 
spinate, chiefly on the posterior border, and the propodite is plumed on 
both sides so as to exactly resemble the vane of a feather: the dactylus 
is extremely short. 
In both sexes the last abdominal segment is shaped like a spear- 
head: in the female the 2nd and 3rd abdominal terga have a median 
spine and the 4th has a spine at the proximal end of either lateral 
border, 
Colours in spirit yellow. In life the carapace is reddish with 
longitudinal stripes of dark red, the eyestalks chelipeds and legs are 
closely cross-banded with red, and the eyes are purplish black. 
The carapace of an adult female, with eggs, is 11 millim. long. 
14 specimens from the Gulf of Martaban 53 and 67 fms., and from 
off the northern end of Ceylon, 28 fathoms. 
619 
