APPENDIX. 



AMPHIPODA. 



NATATORIA. 



507 



PHOXIDES. 



[ Vol. I. p. 170.*) 



MONOCULODES LONGIMANUS, N.S, 



Siiecific character. Dorsal surface slightly carinated. 

 gnathopoda long and narrow, resembling the second pair. 



Length, about one-fifth of an inch- 



First pair of 



This species differs from those previously described in 

 having the first pair of gnatliopoda long and narrow, and 

 in fact developed more nearly on the type of the second pair. 

 The dorsal sm^face is slightly carinated. It was sent to us 

 from Banff by Mr. Edward. We have two specimens, both 

 of which have the superior antennae wanting, while in one 

 the inferior antennae are short, and in the other they are long 

 and slender. We consider the latter to be the male form, 

 iuul the former the female. 



