206 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



PLATE 3 



Figures 49-54, Diopatra neotridens : Fig. 49, 2 of 5 acicula from a 

 median segment, enlarged ; Fig. 50, hooded hook from second 

 parapodium, with third tooth resembling a boss; Fig. 51, distal 

 end of a pectinate seta; Fig. 52, tip of subacicular hook from 

 median segment; Fig. 53, tip of hooded hook from same para- 

 podium as that shown in fig. 50 ; Fig. 54, another hooded hook 

 from same parapodium. 



Figures 55-60, Onuphis zebra (coll. 769-38) : Fig. 55, one of 2 sub- 

 acicular hooks from thirty-sixth parapodium; Fig. 56, thirty- 

 sixth parapodium in anterior view; Fig. 57, second parapodium 

 in anterior view, from same individual, to same magnification ; 

 Fig. 58, tridentate hooded hook from second parapodium; Fig. 

 59, tip of aciculura from thirty-sixth parapodium; Fig. 60, one 

 of 3 pectinate setae from same parapodium. 



Figures 61-66, Onuphis peruana (coll. 835-38): Fig. 61, maxillary 

 carriers and base of forceps; Fig. 62, mandibles in ventral view, 

 from same individual, to same magnification; Fig. 63, one of 

 4 composite spinigers from seventh setiger; Fig. 64, one of 2 

 subacicular hooks from twenty-fourth setiger; Fig. 65, one of 

 4 similar tridentate hooks from second setiger; Fig. 66, 2 acicula 

 from seventh setiger, in front and side views. 



Figures 61-Ti, Onuphis microcephala: Fig. 67, third parapodium in 

 anterior view, hooks indicated ; Fig. 68, pectinate seta from fifty- 

 eighth parapodium; Fig. 69, pseudoarticulate, tridentate hook 

 from third parapodium ; Fig. 70, heavy acicular hook from fifth 

 parapodium; Fig. 71, fifty-eighth parapodium in anterior view; 

 Fig. 72, neuropodium of same, enlarged to show distribution of 

 hooks, acicula, and setae, limbate setae cut off near their base; 

 Fig. 73, maxillae in dorsal view; Fig. 74, mandibles in ventral 

 view, from same individual, to same magnification; Fig. 75, 

 subacicular hook from fifty-eighth parapodium. 



