444 The American Naturalist. [May, 
ture is developed, having, like the last structure, two hairy areas 
(which do not normally occur on the eye stalk), and, in addition, two 
Fig. 1. 
several jointed processes. This last figure scarcely needs the detailed 
argument that Herbst devotes to it to prove that it is antenna-like, and 
en- Ao} 
S | 
frs.. as : 
SO Ay 
Fig. 2 f i 
to show that the endopodite (en), exopodite (ex) and protopodite (pr) 
are represented. Sh T 
