PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



hy the 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 



Vol. 83 Washington: 1936 No. 2994 



NEW SPECIES OF POLYCHAETOUS ANNELIDS OF THE 

 FAMILY NEREIDAE FKOM CALIFORNIA 



By Olga Hartman 



University of California, Berkeley, Calif. 



Annelids of the family Nereidae from many sources have been 

 used in this study. Collections that were made by many persons 

 over many years and that have accumulated in the department of 

 zoology of the University of California at Berkeley were especially 

 valuable. My own collecting was very extensive for Moss Beach, 

 San Mateo County, and less complete for other parts of California, 

 including points between Mendocino County and Los Angeles 

 County. In addition, several smaller recent collections furnished 

 a few interesting species. Such are the collection made at Dillon 

 Beach, Marin County, by Prof. O. L. Williams, of the College of 

 the Pacific at Stockton ; one made at Pacific Grove, Monterey County, 

 by Dr. R. M. Eakin ; and one made off southwestern Oregon by Prof. 

 C. R. Monk, of Willamette University. Holotypes are deposited in 

 the United States National Museum ; paratypes of all except Nereis 

 (Eunereis) longipes, known only from the unique holotype, are in 

 the California Academy of Sciences and the University of California 

 collections. 



Tlie species of Nereis (sensu stricto) found in California are char- 

 acterized by their posterior parapodia being provided with falcige- 

 rous homogomph notosetae (fig. 46, d). They can be arranged in 

 series based on 'the relative proportions of the dorsal lobes of the 

 posterior parapodia. Starting with N. pelagica Linnaeus, which 

 seems most generalized, one such series would include those in which 



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