PLATE LI. 



Aristeus rostridentatus (p. 317). 

 Fie. 1. Lateral view of female. 

 „ I". Ventral aspect ; p, p, first pair of pleopoda. 

 d. Siagon or mandible. 

 br. Branchial plume in section. 

 k\ Spine from the carpos of the first pair of pereiopoda. 



