264 A. Alcock — Carcinological Fauna of India. [No. 2, 



[ ? Lambrus (Platylavibrus) holdsworthii, Miers. 



Lambrus holdsworthii, Miers, Ann. Mag. Nat. Hist., Vol. 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 baving numerous scattered tubercles on the carapace, and 

 (2) in having the large spine at the lateral epibrauchial angle and the 

 two outer spines on the posterolateral 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, Bosc, 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 3| (female) to 3| (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- 



