189G.] J. R. Henderson— ^o?ne '' Investiyator '' ra<jnridie. U2:\ 



second joint of the antenual peduncle extends .slightly k^oiid tl.o 

 middle of the penultimate peduncular joint, and its apex carries a 

 series of hairs. The antennal flagel la are about one and a half times 

 the length of the body. The antennular peduncles exceed the eye- 

 stalks, by about three quarters of the length of their last (peduuculai ) 

 joint. 



The right chelipede is massive, and its form recalls that of Eupa- 

 gurns zebra, Henderson ; the joints are granulated, and the granules 

 exhibit a tendency to become sub-spinose. The merus Las a prominent 

 serrated lobe on its inner and lower margin ; on the under surface of 

 the joint there is a low regularly granulated pyramidal elevation. The 

 lower and inner margin of the carpus presents a similar but smaller 

 serrated lobe, while the upper surface of this joint is armed with sub- 

 spiniform granules. On the inner margin of the carpus these granules 

 are replaced by short conical spines, arranged in several longitudinal 

 rows, and along the distal margin of the joint, adjoining the carpo-pro- 

 podal articulation, there are about six of these spines, somewhat larger 

 than the others, arranged in a row, behind which a narrow smooth area 

 is visible. The upper surface of the propodus is rather uniformly granu- 

 lated, but the granules have a tendency to become spiniform along the 

 inner margin of the joint, near its proximal end ; the outer margin is 

 thin and regularly curved or deflexed towards the apex of the immobile 

 finger. The upper surface of the dactylus is uniformly granulated ; 

 its inner margin is thin, and there is a longitudinal concave area on the 

 under surface. 



The left chelipede when stretched,, extends almost to the insertion 

 of the dactylus in the larger chelipede. It is moderately pubescent, 

 and a row of spinules is found on the lower margin of the merus, and 

 another on the upper margin of the carpus. The latter joint is only 

 slightly shorter than the combined hand and fingers. 



The ambulatory legs are slightly pubescent, and almost unarmed, 

 only one or two njiriute spinules being visible on the carpal joints, in the 

 male specimen. The dactyli have yellow horny apices. The sexual 

 appendages on the first abdominal segment of the female are minute, 

 but the three biramous appendages on the left side are well developed. 



The gill lamellae, which are arranged in two rows, are long and 



narrow. 



The male specimen gives the following measurements : — 



Length of body ... ... . ... - 38 mm. 



„ „ carapace ... ... ••• ••• ^"^ '» 



„ „ right chelipede ... ••» ••• ^' »> 



„ „ carpus of same ... ••• ••• °'^ u 



