CARCINOLOGICAL STUDIES. 63 



The penultimate joint of the male abdomen is somewhat 

 broader than long. The sternum and abdomen are slightly 

 pubescent. 



With the exception of the fingers and of the inner surface 

 of the hands , the anterior legs are covered with hairs which 

 are partly long, silken and yellowish, partly pinnate 

 and which resemble those , found on the upper surface 

 of the cephalothorax. In the male the right chelipede is 

 a little larger than the left; unfortunately the female 

 specimen has lost the right leg , so that I cannot say 

 whether they are equal or not. The upper margin of the 

 arms bears two sharp spiniform teeth , one at the distal 

 end, the second a little before it; a small spiniform tooth 

 is also observed at the proximal end of the anterior margin. 

 A sharp conical granule is found at the internal angle of 

 the wrist and a few similar conical and acute granules 

 are dispersed on the upper surface which is covered with 

 long hairs. 



The fingers of the larger hand (fig. 4b) are about as 

 long as the palm , those of the smaller hand distinctly 

 longer. The palm is covered above and externally with 

 rather long hairs and between these hairs with a few 

 sharp conical granules , which resemble those of the upper 

 surface of the wrist; these granules decrease in size towards 

 the inferior margin. 



The fingers present exactly the same form 

 and structure as those of Pilumnus cristimanus ; the 

 crests on the outer surface of the fingers are however less 

 acute and more obtuse, and the sharp inner edge of the 

 immobile finger, which is quite entire in Pilumnus cristi- 

 manus, presents, at least in the male, four or five very 

 small incisions. The fingers are smooth all over, and pre- 

 sent no trace of granulation , even at the base of the 

 dactylus , but at the uncoloured base of the latter a few 

 long hairs are implanted. 



The ambulatory legs, which are covered with long hairs , 

 are comparatively long and their propodites are nearly as 



Notes from the Leyden IMuseiim , Vol. X^II. 



