1914] Treadwell: Polychaetous Annelids of the Pacific Coast 205 



European C. pergamentaceus is synonymous with C. variopedatus. 

 Enders (1909) concluded also that the species found on the eastern 

 coast of the United States is C. variopedatus. I have compared the 

 California specimens with a specimen from Naples, labeled G. vario- 

 pedatus, and find no essential differences between them. 



Frequent in collections from San Diego and San Pedro. 



Family CIRRATULIDAE 

 Cirratulus cingulatus Johnson 



Cirratulus cingulatus Johnson (1901), p. 422, pi. 14, figs. 145-148. 

 Collected at Puget Sound ; Pillar Point, California ; Point Loma, 

 San Diego. 



Cirratulus spirabranchus Moore 



Cirratulus spirab7'anchus Moore (1904), p. 492, pi. 38, figs. 26-27. 

 Collected from Bolinas Bay; Pacific Grove; Santa Barbara; San 

 Pedro ; and also in haul LIV, on the sand bar at the entrance to San 

 Diego Bay in 2 to 4 fathoms. 



Cirratulus robustus Johnson 



Cirratulus rohustus Johnson (1901), p. 423, pi. 14, figs. 149-150. 

 Collected from Kodiak Islands, Alaska; Bolinas Bay; Pacific 

 Grove ; and San Pedro. 



Cirratulus luxuriosus Moore 



Cirratulus luxuriosus Moore (1904), p. 493, pi. 38, figs. 28-31. 



The distinction between this species and C. spirabranchus did not 

 always seem to me to be clear. I have separated the two chiefly on 

 the position of the gills, these being on the fourth setigerous somite in 

 C. luxuriosus and on the seventh in C. spirabranchus. 



Collected from Pillar Point, California; Pacific Grove; White's 

 Point and Terminal Island, near San Pedro; and also in haul XLI-4, 

 in San Diego Bay in 2 to 3 fathoms on sand and broken shells. 



Cirratulus sp. (?) 

 Collected in haul LXX-5, off La Jolla in 54 to 118 fathoms on mud 

 and soft black shale. 



