NEPHTYIDAE FROM NORTHEAST PACIFIC HARTMAIST 145 



7. Nephiys calif ornien sis, new species: California (littoral to 20 fathoms). 



8. Nephiys schmitti, new species: Northeast Pacific (dredged). 



9. Ncph tys rickettsi, new species : Northeast Pacific. 



10. Ncphtys punctata, new species: Alaska south to Monterey Bay. 



KEY TO THE SPECIES OF NEPHTYS FROM THE NORTHEAST PACIFIC 



1. Recurved cirri involute 2 



Recurved cirri not involute, some curved outward (fig. 63, (/) 3 



2. Recurved cirri developed at fourth or fifth setiger; proboscis 



distally with 22 rows of papillae ; lyre setae present ; neuro- 



podium with a slender, superior lobe dibranchis 



Recurved cirri first developed after tenth setiger; proboscis dis- 

 tally with 14 rows of papillae ; lyre setae absent ; neuropodium 

 without superior lobe nialmgreni 



3. Recurved cirri flattened, foliaceous between segments 14 to 35 



(fig. 65, c) ; proboscis proximally smooth schmitti 



Recurved cirri cirriform or thickened, not foliaceous 4 



4. Recurved cirri thick, blunt, digitate in postmedial region (fig. 



66, c) ; proboscis proximally obsoletely wartlike; postsetal lobes 



thick, fleshy, well developed in median region (fig. 66, 6) rickettsi 



Recurved cirri cirriform or sickle-shaped (fig. 63, g) 5 



5. Recurved cirri present from tenth or eleventh setiger, absent from 



posterior fifth of body; proboscis proximally covered with 



minute, conical, chitinous prickles punctata 



Recurved cirri present from third or fifth setiger to posterior end 



6. Neuropodial acicular lobe blimtly conical or rounded (fig. 62, 



c, d) magellanica 



Neuropodial acicular lobe bilobed (fig. 63, g) 7 



7. Proboscis proximally smooth, glistening 9 



Proboscis proximally covered with low, coarse, wartlike processes 



or minute conelike elevations S 



8. Proboscis with a median dorsal papilla ; recurved cirri reduced 



on last 20 or 30 setigers ; postsetal lamellae not conspicuous ciliata 



Proboscis without median dorsal papilla ; recurved cirri present 



to posterior end ; postsetal lamellae large, thin, foliaceous caeca 



9. Proboscis with median dorsal papilla ; recurved cirrus present 



from fourth setiger ; setae stiff, dusky, held stiflly from side 



of body caecoides 



Proboscis usually without a median dorsal papilla ; recurved 

 cirrus present from third setiger ; setae soft, silky, flowing-, calif orniensis 



Genus NEPHTYS Cuvier 



Ncphtys CuviEB, 1817, p. 173. 

 Nephthys Savignt, 1822, p. 12. 



The spelling Nei)htys is used herein in place of the more widely 

 used Nephthys because the former has priority. Cuvier erected the 

 genus for the species N. hombergi. In his table of contents 

 (p. xxviii) he also spelled the name Nephtls. 



