32 ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



PLATE 2 



Figures 9-11, Leanira incisa: Fig. 9, fifth elytrum from left side in 

 ventral view, the right end is median; Fig. 10, prostomium in 

 dorsal view, showing arrangement of 4 eyes and antennal cte- 

 nidia; Fig. 11, posterior elytrum, the right side is outer lateral. 



Figure 12, Eupanthalis oculata: prostomial lobe in dorsal view, the 

 median antenna turned somewhat to the right to show the pro- 

 stomial sulcus. 



Figures 13-15, Hydroides, sp.: Fig. 13, a process from the distal oper- 

 cular cup, in lateral view; Fig. 14, outline of lower opercular 

 disk; Fig. 15, same process as that shown in fig. 13, in frontal 

 view (figs. 13-15 to same magnification). 



