94 PROECEDINGS OF THE ACADEMY OF [1894. 



Sars, G. O. Revision dcr Gruppeu ; Isopoda Chelifera. Arch. f. 

 Mathematik, Vol. VII. 



Stebbinu:, T. R. R. A History of Crustacea. New York, 

 1893. 



Description of Plate V. 



Fig. 1. Dorsal view of male. 



Fig. 2. Antenna of male. 



Fig. 3. Mandible. 3a a portion of molar surface in section. 



Fig. 4. First maxilla with its backwardly directed palp ter- 

 minated by long settc. 4a, apical portion of maxilla, showing the 

 apical and sub- apical groups of spines and the auxiliary brush of 

 stiff bristles. 



Fig. 5. Maxilliped. 



Fig. 6. First gnathopod of male ; 6a of female. The basal 

 joint is not shown. 



Fig. 7. Limb of first free thoracic segment. 



Fig. 8. Last thoracic limb. 



Fig. 9. Pleopod. 



Fig. 10. Uropod. 



