226 CARCINOLOGICAL STUDIES. 



the second is somewhat smaller , and the third and fourth 

 are the smallest , much narrower, and therefore appear 

 more dentiform. The ambulatory legs are densely provided 

 with long hairs. I examined this species in the Museum 

 of Paris. 



2. X ant ho Reynaudii M. E. 



Xantho Reynaudii, Milne Edwards, 1. c. T. I, p. 392. 



I examined in Paris a specimen of this Xantho ^ which 

 was collected in China. The cephalothorax is rather little 

 enlarged and the front is narrow. The measurements are 

 the following : 

 Greatest width of the cephalothorax (i. e. the 



distance between the last antero-lateral teeth). SQVg mm. 

 Length of the cephalothorax, the front included 44 » 

 Distance between the external orbital angles .25 » 

 Breadth of the front 15 » 



3. Eurycarcinus orientalis A. M. E. 



Eurycarcinus orientalis, A. Milne Edwards, Descriptions de quel- 

 ques especes nouvelles de Crustacés brachyures , in : Annales Soc. 

 Entomol. de France, T. VII, 1867, p. 277. 



In my » Report on the Crustacea of the Mergui Archi- 

 pelago" (Journal of the Linnean Society of London , Vol. 

 XXII, 1888, p. 43), I have made the supposition that 

 Eurycarcinus integrifrons de Man, of which the habitat is 

 unknown , might prove to be identical with Euryc. orien- 

 talis A. M. E., a species from Bombay. An exact exami- 

 nation of the typical specimen in Paris taught me, how- 

 ever, that these two species are indeed distinct. The 

 cephalothorax of Euryc. orientalis is comparatively some- 

 what more enlarged, as may be seen by comparing 

 the dimensions of the two species. The front of Euryc. 

 orientalis is not straight , as in Euryc. integrifrons , but pre- 

 sents a rather broad , triangular emargination in the middle. 



Notes from th.e Leyden ]VIiiseuin , Vol. XIV. 



