PLATE 20. 



Autolytus obliquatus Chamberlin (pelagic male). 



Figures 1-3. 



1. — Anterior region, dorsal view. X 03. 

 2. — Anterior region, ventral view. X 63. 

 3. — Compound seta. X 1637. 



Autol3rtus planipalpus Chamberlin (pelagic male)'. 

 Figure 4. 

 4. — Fourth left parapodium of second division (eighteenth setigerous). X 63. 



