264 A. Alcock— CarcinoJogical Fauna of India. [No. 2, 
[ ? Lambrus ( Platylambrus ) holdsworthii , Miers. 
Lambrus holdsworthii, Miers, Ann. Mag. Nat. Hist., Yol. IV. 1879, p. 19, pi. v. 
fig. 3; and ‘ Challenger ’ Brachyura, p. 93; and Henderson, Trans. Linn. Soc., (2) V. 
1893, p. 350. 
The single specimen that I doubtfully refer, from Miers’ figure and 
description, to this species, has a close resemblance to both the species 
identified above as L. prensor and L. carinatus. It differs from them 
both (1) in having numerous scattered tubercles on the carapace, and 
(2) in having the large spine at the lateral epibranchial angle and the 
two outer spines on the postero-lateral margin all of about the same 
size. It resembles L. prensor , and differs from L. carinatus , in not 
having the branchial region traversed by a single sharp-cut carina: 
and it resembles L. carinatus , and differs from L. prensor , in having a 
median line (though not a high carina) of three large teeth, in having 
the infra-orbital lobe deeply cleft and not exceedingly produced, and in 
having the anterior (or upper) edge of the meropodites of the ambula¬ 
tory legs dentate instead of carinate.] 
Lambrus ( Platylambrus ) echinatus , Herbst. 
Cancer echinatus, Herbst, Krabben, I. ii. 255, taf. xix. figs. 108-109. 
Parthenope giraffa, Fabr., Supplement, p. 353. 
[ Maia echinatus and giraffa, Bose, I. 250]. 
Lambrus giraffa, Desmarest, Consid. Crust., p. 85. 
Lambrus echinatus, Milne-Edwards, Hist. Nat. Crust., I. 356. 
Lambrus echinatus, Miers, ‘ Challenger’ Brachyura, p. 93. 
Carapace broader than long, broadly triangular with the sides 
rounded : the gastric and cardiac regions are elevated, and are delimited 
on either side from the elevated branchial regions by broad and deep 
grooves. The entire carapace is covered, but not very densely, with 
large mushroom-like and paxilliform tubercles, the spaces between 
which are occupied, but not densely, by short, crisp, upstanding hairs. 
The lateral margins are armed with ramose spines, which increase in 
size from before backwards : the posterior and part of the postero¬ 
lateral margins are armed with tubercles like those on the surface of 
the carapace. The granular rostrum is broad and concave at the base, 
and is then suddenly narrowed to form a little peak. 
The chelipeds which are from 3J (female) to 3f (male) the greatest 
length of the carapace, are distinguished by having their upper aspect 
(edges and surfaces) covered with ramose spines, and their under aspect 
covered with great pearly tubercles. The ambulatory legs are distin- 
