172 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.15 



PLATE 15 



Figures 1 to 6, Nephtys singularis (770-38): Fig. 1, anterior end 

 including first 5 segments, in dorsal view, x 28; Fig. 2, seventh 

 parapodium in anterior view, x 31 ; Fig. 3, thirtieth parapodium 

 in anterior view, x 31; Fig. 4, part of a postacicular neuroseta 

 showing portion where stem and blade merge, in lateral view, 

 x 560; Fig. 5, part of a preacicular neuroseta, showing arrange- 

 ment of transverse bars at about middle of seta, in frontal view, 

 x 382; Fig. 6, part of a preacicular neuroseta, seen from the 

 side, x 382. 





