214 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



PLATE 7 



Figures 145-150, Eunice tridentata: Fig. 145, dark aciculum from a 

 posterior parapodium (coll. 217-34) to same magnification as 

 fig. 147; Fig. 146, tip of subacicular hook shown in next figure, 

 enlarged; Fig. 147, dark subacicular hook from a posterior 

 parapodium ; Fig. 148, 2 composite hooks from tenth parapo- 

 dium, with accessory teeth somewhat worn away (coll. 444-35) ; 

 Fig. 149, an unworn composite hook with sheath, from same 

 parapodium; Fig. 150, tenth parapodium in anterior view, with 

 large dorsal cirrus and smaller branchia, setae indicated (coll. 

 444-35). 



Figures 151-153, Eunice rubra (coll. A 13-39): Fig. 151, distal end 

 of a composite hook; Fig. 152, distal end of a tridentate sub- 

 acicular hook; Fig. 153, distal end of an aciculum (figs. 151- 

 153 to same magnification). 



Figures 154-156, Eunice antennata: Fig. 154, distal end of an acicu- 

 lum from a posterior parapodium (coll. 287-34) ; Fig. 155, dis- 

 tal end of a subacicular tridentate hook from a posterior para- 

 podium (coll. 633-37) ; Fig. 156, composite hooded hook from 

 same parapodium as that in fig. 154 (figs. 154-156 to same 

 magnification). 



Figures 157-163, Eunice (Nicidion) cariboea (all save fig. 161 from 

 coll. 634-37) : Fig. 157, composite bidentate hook from thirty- 

 eighth parapodium; Fig. 158, subacicular hook from same para- 

 podium; Fig. 159, mandible in ventral view; Fig. 160, maxillae 

 in dorsal view; Fig. 161, first branchial (222nd) parapodium, 

 showing large branchia and small dorsal cirrus (coll. 249-34) ; 

 Fig. 162, pectinate seta from a far posterior parapodium, later- 

 ally inrolled; Fig. 163, parapodium from segment 105, with 

 aciculum and subacicular hook indicated. 



