188 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 22 



PLATE 6 

 Paralacydonia paradoxa Fauvel (sta. 5947) 



1. Anterior end, showing prostomium and first 16 setigerous 



segments, in dorsal view, x 57. 



2. Tenth parapodium, showing arrangement of parapodial 



lobes, in anterior view, x 210. 



3. Articulation of a composite neuropodial seta, showing 



details of distal end of shaft with sheath, and denticu- 

 late teeth of appendage, x 2500. 



