306 ALLAX HANCOCK PACIFIC EXPEDITIONS VOL. 10 



PLATE 26 



Figures 64, 65, Alediomastus calif ornicnsis: Fig. 64, anterior end in 

 right lateral view, showing thoracic and first few abdominal 

 segments, x 14; Fig. 65, anterior end, \vith prostomium and pal- 

 pode, achaetous peristomial ring, first setiger and partly everted, 

 papillated proboscis, enlarged. 



Figures 66-69, Amafci ociidcntalis: Fig. 66, anterior end in ventral 

 view, with prostomial lobe, peristomial fold and first 9 thoracic 

 setigers, x 5 ; Fig. 67, ventrolateral parts of third and fourth 

 setigers from the left side, showing transition from elongate 

 third parapodium to short fourth one, also nephridial papillae 

 and third and fourth nephridia, enlarged; Fig. 68, cross section 

 of inflated tentacle at widest part, showing concave groove, to 

 same magnification as next figure; Fig. 69, an inflated tentacle 

 from the dorsal ridge of peristomial fold, in ventral view, show- 

 ing deep groove, x 12. 



