PLATE XXX. 



Stenopus hispidus, female (length, 45 mm.); enlarged twice (p. 211). 



e First siagnopocl. 



f. Second siagnopod. 



g. Third siagnopod. 

 h. First gnathopod. 



i. Basal part of second gnathopod ; enlarged, showing basecphysis, mastigobranchia, 



and arthrobranchial plume. 

 p. First pleopod. 

 q. Second pleopod. 

 h-o. Diagrammatic plan of the branchial arrangement and proportions. 



