478 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 | 



PLATE 57 



Figures 1-2, Dasybranchus glabrus: Fig. 1, abdominal hook in 

 frontal view, x 1188; Fig. 2, abdominal hook in lateral view, 

 X 1188. 



Figures 3-4, Protocapitella simplex: Fig. 3, abdominal hook in lateral 

 view, X 2592; Fig. 4, abdominal hook in frontal view, x 5184. 



