DUTCH BORNEO-EXPEDITION. 133 



I was enabled to compare it with the ova-bearing fe- 

 male from Padang, mentioned in the first of the two papers 

 quoted above. Both specimens closely agree with one an- 

 other and certainly belong to the variety gracilipes, esta- 

 blished by myself in 1891 (Notes from the Leyden Museum, 

 Vol. XIII, p. 49) after a young male from the Pacific 

 Ocean, but the carapace of the female from the isle of 

 Lemoekoetan is somewhat shorter in proportion to 

 the distance between the outer orbital angles. In Dr. Hal- 

 lier's specimen the front is a little less prominent and its 

 anterior margin is straight in the middle, but in the other 

 a median emargination, though quite shallow, is still percep- 

 tible. The ambulatory legs fully agree. The named diffe- 

 rences may, I think, be regarded as individual. 



Measurements in mm.: 1 2 



Q Q 



Distance between the external orbital angles 173 I63 



Length of the cephalothorax 11? 121 



Breadth of the front 11 lO.V 



Length of the propodites in the middle oj . i 51 52 



Breadth » « » „ „ „ ^5 "3 « -^ 2 2 ' 



Length ./ „ dactylopodites ° %^ ^ 41,- 4.I- 



N». 1. Female collected by Dr. Hallier, N". 2 that from' 

 Padanff. 



Sesarma Say. 



Sesarma [Sesarmo) Amphinome^ n. sp. 



(Plate 12, Fig. 16). 



Five specimens, viz. 2 males and 3 females, were collected 

 by Max Moret, probably at Sintang. 



Miss Rathbun has recently proposed (in: Proc. Biol. 

 Soc. of Washington, Vol. XI, 1897, pp. 89 and 90) the 

 name of Sesarma for my subgenus Episesarma and that 

 of Holometopus M. E. for my subgenus Sesarma and I 

 think she is in the right. 



This new species now belongs to the subgenus Sesarma 



Notes from the Leyden Museum, "Vol. XXI. 



