Ï>0D0PHTHALM0US CRUSTACEA. 73 



postero-lateral margins are somewliat longer than the antero- 

 lateral ones and indicated by a granular line. The external 

 maxillipeds are shaped in the same manner as in Gnatho- 

 grapsus pilipes Alph. Milne Edw. , the exopodite (exognathe 

 Alph. M. Edw.) reaches to the anterior border of the very 

 auriculated third joint of the outer foot-jaws, is very convex 

 and almost as broad as the second joint. The legs are 

 short; the chelipedes (of the female) are equal and of a 

 tolerable size; the meropodite does not proceed beyond the 

 lateral margins of the carapace and is not armed with 

 spines ; the carpopodite has also no spines and is granu- 

 lated at its outer surface ; claw a httle convex , the fingers 

 excavated like a spoon ; the inner surface of the claws is 

 smooth , the outer surface covered with some granules and 

 short hairs and with two granulated lines , the inferior of 

 which passes on the outer surface of the immoveable finger. 

 The second and third pair of the ambulatory legs are the 

 longest of all , but are scarcely as long as the breadth of 

 the carapace ; the joints are but little compressed , the infe- 

 rior margin of the meropodites is armed a little before the 

 distal end with two or three teeth, of which one is some- 

 what larger than the other ; the carpopodites and the 

 propodites are but a little hairy and the dactylopodites 

 that are similar to those of Gnathograpsus , are provided 

 with rows of short bristles. 



Breadth of the carapace of the female 22 m. m. 

 Length » » 18 m. m. 



The single specimen, a female, has been presented to 

 our Museum in 1836 by Mr. van Delden, to whom we 

 dedicate it, and is collected near Menado at the island of 

 Celebes. 



NTotes from the Leyden MuseutH. 



