EURYSTHEUS BISPINIMANUS. 



AMPHIPODA. 



NATATORIA. 



357 



OAMM ABIDES. 



EURYSTHEUS BISPINIMANUS. 



Specific character. Palm of tlie second pair of gnathopoda armed with 

 two short stout spines. 

 Length ^^ inch. 



Eurystheus hlspinimanus. Spence Bate, Cat. Ampl^ Brit. Mus. p. 197, 

 pi. XXXV. fig. 8. 



The animal is a little more robust than the preceding- 

 species. The eyes are reniform. Both pairs of antennae 

 are wanting in our unique specimen ; it is therefore not 

 impossible that it may belong to the genus Ncenia. We, 

 however, retain it in the position originally assigned 

 to it until future observation may enable us to de- 

 termine its proper genus. The mandibles are furnished 

 with an obtusely-pointed triarticulate appendage. The 

 first pair of legs are long and slender, rather resembling 

 the same appendage in Ncenia than they do those of the 

 typical species of this genus ; they have the wrist as 

 long as the hand, and quite as wide ; the hand is not 

 dilated, but tapers gradually from the wrist to the 

 extremity ; the palm is not defined, and is so oblique 

 as to be subparallel with the upper margin. The finger 



