216 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



PLATE 8 



Figures 164-174, Eunice americana (coll. 1130-40) : Fig. 164, anterior 

 end in ventral view, maxillae and mandibles partly everted, the 

 mandibles showing the characteristic winglike tips; Fig. 165, 

 mandibles in ventral view; Fig. 166, distal ends of 2 subacicu- 

 lar hooks from a posterior parapodium; Fig. 167, maxillary car- 

 riers and base of forceps; Fig. 168, seventeenth parapodium 

 with branchia, setae indicated (to same magnification); Fig. 

 169, a pair of acicula from a posterior parapodium; Fig. 170, 

 distal end of a composite, bidentate hook from a median para- 

 podium; Fig. 171, a similar hook from a fifth parapodium, one 

 of about 35; Fig. 172, a similar seta with tridentate tip (en- 

 larged) ; Fig. 173, one of 5 composite hooks from tenth last seg- 

 ment; Fig. 174, portion of tube showing branched structure (figs. 

 166, 170, 171, 173 to same magnification). 



Figure 175, Lumbrineris tetraura: anterior end in dorsal view (coll. 

 473-35). 



Figures 176, 177, Lumbrineris acuta: Fig. 176, mandibles; Fig. 177, 

 maxillae in dorsal view, from same specimen, to same mag- 

 nification. 



Figure 178, Eunice (Nicidion) carihoea: tenth parapodium in an- 

 terior view, setae indicated (coll. 634-37) (magnification same 

 as for fig. 177). 



Figures 179-183, Marphysa sanguinea: Fig. 179, distal end of com- 

 posite spiniger from a posterior parapodium; Fig. 180, distal end 

 of a black aciculura from same parapodium; Fig. 181, tridentate 

 pectinate seta from same parapodium; Fig. 182, distal end of 

 subacicular hook from same parapodium; Fig. 183, pectinate seta 

 with 5 teeth from a posterior parapodium (figs. 179-183 to same 

 magnification). 



Figures 184-188, Marphysa aenea: Fig. 184, pectinate seta with 7 

 teeth, from an anterior parapodium; Fig. 185, distal end of com- 

 posite, bidentate hook; Fig. 186, distal end of subacicular biden- 

 tate hook; Fig. 187, one of 4 or 5 large pectinate setae from a 

 median parapodium; Fig. 188, one of about 10 fine pectinate 

 setae from a median parapodium (figs. 184-188 to same magnifi- 

 cation). 



Figure 189, Eunice americana: pectinate seta from a posterior para- 

 podium, laterally inrolled (magnification as for fig. 188). 



Figures 190, 191, Lumbrineris tetraura: Fig. 190, maxillary carriers 

 and plates I and II, in dorsal view; Fig. 191, mandibles in ven- 

 tral view, from same individual, to same magnification. 



