1895.] A. Alcock —Carcinological Fauna of India. 265 
guislied by the large and numerous spines on their 3rd, 4th and 5th 
joints. 
This species is not uncommon off the Orissa coast from 7 to 23 
fathoms. 
Sub-genus Rhinolambrus, A. Milne-Edwards. 
Rhinolambrus , A. Milne-Edwards, Miss. Sci. Mex., Crust., I. p. 148. 
Lambrus, Miers, ‘ Challenger ’ Brachyura, p. 92 (part.). 
Carapace triangular, usually as long as broad, with a broad pro¬ 
jecting somewhat declivous rostrum and a very distinct post-ocular 
constriction; surface of carapace very commonly, but not always, 
spiny and granular. 
Key to the Indian species of the sub-genus Khinolambrus. 
I. Chelipeds stout, 
three times to 
twice or less the 
length of the cara¬ 
pace and rostrum. 
r 
<( 
1. Carapace and 
chelipeds very 
closely covered 
with large rugged <{ 
granules and 
sharp ramose 
spines. 
^i. Chelipeds nearly 
three times the 
length of the ca¬ 
rapace and ros¬ 
trum.. 
ii. Chelipeds not 
t wo-and - a-half 
times the length 
of the carapace 
and rostrum. 
2. Carapace with 
few depressed tu¬ 
bercles, or nearly ( 
smooth: chelipeds 
with blunt teeth 
or smooth gra¬ 
nules. 
'"i. Chelipeds three 
times the length 
of the carapace 
and rostrum. 
f 
ii. Chelipeds not 
twice the length 
of the carapace 
and rostrum. 
L. contrarius. 
L. longispinis. 
L. pelagicus. 
L. gracilis. 
II. Chelipeds slend¬ 
er, three-and-a- 
half to five times , 
the length of the** 
carapace and ros¬ 
trum. 
1. Carapace at least 
as long as broad : 
large erect turret- 
like spines on the 
carapace. 
^i. A single turret on 
the cardiac region, 
and on either 
branchial region : 
two large diverg¬ 
ing spines in the 
middle line on the 
posterior border... 
ii. Two turrets on 
the cardiac region, 
and two on either 
branchial region: 
a single spinule 
on the posterior 
^ margin. 
L. turriger . 
L. cybelis. 
2. Carapace broader than long; large 
^ spines of ordinary form on the carapace L. petalophorus. 
