460 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



PLATE 48 



Figures 1-5, Notomastus (Clistomastus) hemipodus, new species: 

 Fig. 1, anterior end including thorax and first 2 abdominal seg- 

 ments, in right lateral view, proboscis partly everted, x 15; 

 Fig. 2, median abdominal segments in dorsal view, x 29 ; Fig. 3, 

 prostomium and peristomium, in dorsal view, showing eyespots 

 and nuchal slits, x 34; Fig. 4, hooded hook from median abdom- 

 inal segment, in lateral view, x 1631; Fig. 5, hooded hook in 

 frontal view, x 1631. 



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