PLATE XXXVI. 



FIG. 



1. GoNOTHYRjEA GRACILIS, p. 183, nat. size. 



1 o. The same, magnified. From drawings by the Author. 



1'. G. GRACILIS, nat. size. After Sars. 1 b. The gonotheca 

 (female). After Sars. 



2. CAMPANULINA TURRITA, p. 190, magnified. From a 



drawing by Prof. Wyvillc Thomson. 



