PLATE XX. A. 



crasaimanus, n. sp. 



n.s. Natural size of specimen, peraeopods omitted. 



l.i. Lower lip. 



nixp. Maxilliped with coupling-hooks and apical armature of inner plate further 



enlarged. 



prp. 1 (gn.) rf . First peraeopod (gnathopod) of male. 

 prp. 1 (gn.) ? . First peraeopod (gnathopod) of female, magnification twice that of 



male. 



pip. 1 cf . First pleopod of male. 

 pip. 2 $ . Second pleopod of male. 

 pip. 4. Fourth pleopod. 



I'LATK XX. Li. 



x, n. sp. 



mxp. Maxilliped. 



prp. 1 (gn.) 3 . First peraeopod (gnathopod) of male, with 7th and terminal 

 portion of (ith joints enlarged. 



pip. 1 $ . First pleopod of male. 



pip. 2 $ . Second pleopod of male. 



pip. 3. pip. 4. Third and fourth pleopodt?. 



tels. -{- urop. Portion of telson with one of the uropods. 



PLATE XX. C. 

 opxi*: i-nrricornis, (Nicolet). 



pip. 1 j First pleopod of male. 

 pip. 2 c? . Second pleopod of male. 

 pip. 3, pip. 4. Third and fourth pleopods. 

 urop. Uropod. 



