186 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 25 



PLATE 24 



Pherusa papillata (Johnson) (from Washington) 



1. Anterior end in dorsal view, showing distribution of papillae and 

 arrangement of anterior setae, x 10. 



2. Anterior end seen from the right side, with right palp and tentacles 

 cut off near the base, showing the semicircular arrangement of the 



four eyes, x 30. 



3. Anterior end seen from the front, showing left palp and four left 



tentacles in place, and the small beaked prostomium with four eyes, 

 huge oral slit and peristomium, x 28. 



4. Thickest neuropodial hook from fourteenth last segment, x 280. 



5. Companion seta from fourteenth last neuropodium, x 280. 



6. Slenderest hook from fourteenth last neuropodium, x 280. 



7. Portions of a long seta from the first setigerous segment, x 195; 

 a, near base, b, near middle, c, toward tip, d, near tip. 



