1895.] 
A. Alcock —Carcinologicctl Fauna of India. 
275 
of L. hoplonotus , but the spines, especially those on the outer edge of 
the hand, are very much longer, slenderer, and more acute. 
Several specimens, including ovigerous females, of this small 
species are in the Museum collection, from Arakan ; and from off Ceylon, 
34 fathoms. 
The figure in Adams and White is an admirable illustration of this 
species. 
Sub-genus Parthenolambrus, A. M.-Edw. 
Parthenolambrus, A. Milne-Edwards, Miss. Sci, Mex. Crust., I. p. 148. 
Parthenopoides, Miers, Journ. Linn. Soc., Zool., Yol. XIV. 1879, p. 672. 
Parthenolambrus, Miers, ‘ Challenger ’ Brachyura, p. 99. 
Carapace semi-elliptical or semi-circular, with a nearly straight 
posterior margin, the postero-lateral angles being strongly produced. 
Chelipeds of no great length, never sharply serrate, and with the arms 
and hands indefinitely contorted. The rostrum is more or less deflexed. 
Key to the Indian species of the sub-genus Parthenolambrus. 
I. Carapace with the hepatic regions very prominent in the 
antero-lateral margin :— 
1. Carapace broader than long, strongly convex, no¬ 
dular and eroded: chelipeds less than twice 
the length of the carapace. L. tarpems. 
2. Carapace as long as broad, compressed, with crist- 
iform edges, its surface almost devoid of gra¬ 
nules : chelipeds more than twice the length 
of the carapace. L. harpax. 
II. Carapace with the hepatic regions distinct, but not marked¬ 
ly prominent :— 
1. Rostrum almost vertically deflexed : ambulatory 
legs dentate, but without true spines. L. calappoides. 
2. Rostrum moderately deflexed, with a prominent 
median lobe : meropodites of ambulatory legs 
each with three rows of close sharp spines. L. beaumontii. 
Lambrus ( Parthenolambrus ) calappoides , Ad. and Wh. 
Parthenope calappoides, Adams and White, ‘ Samarang ’ Crustacea, p. 34, pi. v. 
fig- 5. 
Lambrus calappoides , Haswell, P. L. S., N. S. Wales, Yol. IY. 1879, p. 452; and 
Cat. Austral. Crust., p. 35. 
Lambrus calappoides, Miers, Zoology of H. M. S. * Alert, ’ pp. 517 and 527; and 
‘Challenger’ Brachyura, p. 101. 
Parthenolambrus calappoides, R. I. Pocock, Ann. Mag. Nat. Hist., 1890, Yol. V. 
p. 75. 
Carapace almost semi-circular in outline, with an indentation 
J. ii. 35 
