68 CRUSTACEANS OF THE 



6 specimens (2 cf cf, 4 $?) without definite locality though 

 probably from Sintang. 



2 males and 1 female from the southern foot of Mount 

 Kenepai, collected in December 1893. 



2 young males from Nanga Raoen. 



2 young males from the forest near the small Siniai 

 river, captured in March 1894, and finally 



1 young female collected by Dr. Nieuwenhuis at Bloe-oe, 

 a locality situated on the Upper Mahakkam. 



Not one of all these specimens may be considered to 

 have attained its full growth : the cephalothorax of the 

 largest individual, a male from Mount Keuepai, is 49 mm. 

 broad, but the female from the Solor-Islands, that has 

 been mentioned in my paper quoted above, was 70 mm. 

 broad. The proportion between the width and the length 

 of the cephalothorax appears to be somewhat variable 

 in this species. In the specimen figured by Milne Edwards 

 (1. c.) the proportion is as 23 : 19. Just the same pro- 

 portion is shown by the female from Sanggau and by a 

 younger female from Buitenzorg, .Java, in my own col- 

 lection; in both the form of the carapace fully agrees 

 with the figure in the » Archives du Muséum." In all the 

 other specimens, however, the cephalothorax appears a little 

 broader, the proportion between width and length being 

 as 23 : 18. In the old female from the Solor-Islands the 

 cephalothorax was 70 mm. wide and 52 mm. long, the 

 proportion between both therefore as 23: 17, but this may 

 be a consequence of the large size of this specimen. 



Almost in all those individuals in which the proportion 

 between width and length of the cephalothorax is as 23 : 

 18, the tip of the first epibranchial tooth is a little less 

 distant from the external orbital angle than from the 

 tip of the second epibranchial tooth, that seems to be 

 usually the case in this species (de Man, 1. c. p. 64) ; in 

 the female from Sanggau, however, as also in that from 

 Buitenzorg, the cephalothorax of which specimens is less 

 enlarged, the distance between the tips of the two epi- 



Notes from the Leyden IVtuseum, Vol. XXI. 



