Crustacea from the China Sea. 75 



Chelipedes nearly smooth on the inner surface, granular 

 externally, the granules on the carpus arranged more or less 

 in clusters, on the manus in transverse scries ; the dactyli 

 compressed and blade-like, the movable one slender and 

 arched, granulate above, but on the inner surface feebly den- 

 tate only at the base ; the immovable one obscurely dentate 

 and thick from above downwards. 



Legs very hairy and granular, as in rufopunctata, but not, 

 as in that species, lobate. 



Two specimens ( $ and ? ) on Extreme Reef in half a 

 fathom of water. 



The colour (in alcohol) of these specimens is a kind of pale 

 reddish grey ; the smooth parts of the limbs darker slate- 

 grey, dactyli dark brown. In one specimen (the male) the 

 lower half of the manus is black both on the inner and on the 

 outer side. Whether this colouring is sexual or only " acci- 

 dental " cannot of course be determined. 



This species is more nearly allied to rufopunctata than to 

 any other known to me, but may be separated from it by 

 many well-marked characters. In addition to those already 

 referred to in the description mention may be made of the 

 form of the fingers and the absence of the red colouring- 

 matter. 



Width of carapace 14, length 9£ millim. 



13. Aetata rufopunctata 7 M.-Edw. 



Actcea rufopunctata, A. M.-Edw. Nouv. Arch. Mus. i. p. 268, pi. xviii. 

 rig. 1 (1865). 



A single specimen in 3 feet of water on Extreme Reef. 



14. Parthenolambrus calappoides, Adams & White. 



Purtlienolambrus valappoides, Adams & White, Crust, in Voyage of 

 ' Samarang,' p. 84, pi. v. rig. 5. 



A single individual of large size at a depth of 27 fath. on 

 the edge of the reef off Nam-yit. 



The carapace gives the following measurements : — Length 

 22j, width 33 millim. 



This, the largest specimen that I have seen of the genus, 

 I was at first inclined to look upon as the type of a new species 

 mainly on the strength of the great erosion that the upper 

 surface of the carapace presents. But an inspection of the 

 series of P. calappoides in the Museum soon showed that this 

 character is exceedingly liable to variation — in fact that no 

 two individuals have the carapace similarly eroded. 



