144 PROCEEDINGS OF THE NATIONAX, MUSEUM VOL. 85 



the past four years by members of the classes of invertebrate zoology 

 of the University of California, were obtained chiefly from the lit- 

 toral zones of northern California. These collections have permitted 

 the examination of several hundred individuals. 



Acknowledgments. — I wish to express appreciation particularly 

 to Dr. Waldo L. Schmitt, of the United States National Museum, 

 and to E. F. Ricketts, of Pacific Grove, Calif., for making available 

 many of the collections used ; also to C. C. A. Monro, of the British 

 Museum, for labeled collections of European species of Nephtys. 



Holotypes of new species are deposited in the United States 

 National Museum ; paratypes in the University of California. 



Terminology. — Recurved cirrm is herein used to designate the 

 ventral outgrowth of the dorsal cirrus (==branchia or branchial cir- 

 rus of some authors). Terminal hifid 'papillae are the distal, bifur- 

 cated outgrovvths of the dorsal and ventral lips of the proboscis; the 

 median dorsal papilla (when present) is the more or less elongate, 

 unpaired papilla inserted between the terminal and subterminal pap- 

 illae. The wartlike or hooklike elevations sometimes present on the 

 proximal portion of the proboscis [hockerartigen Papillen of Ehlers 

 (1868, p. 624)] are not designated papillae, since they bear no resem- 

 blance to the so-called more distal outgrowths. 



SPECIES OF NEPHTYS FROM THE NORTHEAST PACIFIC, WITH KNOWN 



DISTRIBUTION 



1. Nephtys caeca (Faiiricius) : Circumpolar ; northeast Pacific south to central 



California (rare). 



Nereis caeca Fabricius, 1780, p. 304 (Greenland). 



Nephthys caeca Ehlers, 1864-68, p. 588 (Gulf of Georgia).— Johnson, 

 1910, p. 401 (part) (Alaska, Puget Sound).— Moore, 1908, p. 341 

 (Alaska).— Tread WELL, 1914, p. 192 (part); 1926, p. 4 (Alaska).— 

 Chambbhlin, 1919, p. 255 (Gulf of Georgia ) .—Berkeley, 1924, p. 290 

 ( British Columbia ) . 



non Moore, 1909, p. 243; 1911. p. 243; 1923, p. 257.— Hilton, 1919, p. 

 27 (?). 



2. Nephtys ciliata (O. F. Mxtller) : Circumpolar. 



Nereis ciliata MtJLLER, 1789, p. H (Norway). 



Nephthys ciliata Moore, 1908. p. 341 (Alaska).— Chamberlin, 1920, p. 9B 



(north circumpolar).— Berkeley, 1924, p. 290 (British Columbia). 

 ? non Berkeley, 1935, p. 770 (Elkhorn Slough, Calif.). 



3. Nephtys dihranchis Grube: Tropical and subtropical Pacific. 



( See p. 146 for distribution details. ) 



4. Nephtys magellanica Augener : Southeastern Pacific north to San Diego Bay. 



(See p. 146 for distribution details.) 



5. Nephtys malmgreni Theel : Behm Canal, Alaska : Circumpolar. 



Th6el, 1879, p. 26 (Novaya Zemlya).— Moore, 1908, p. 342 (Alaska, 

 dredged). — ? Treadwell, 1914, p. 192 (southern California). 



6. Nephtys caecoides, new species: California (littoral); Lower California; 



Washington (rare). 



