160 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 22 



Family TEREBELLIDAE 



Genus ARTACAMA Malmgren, 1866 



Artacama coniferi Moore, 1905 



Berkeley and Berkeley, 1952, pp. 74-75, figs. 150-151. 



A large anterior end, measuring 5 mm across, comes from Tanner 

 Basin. It consists of the large, coarsely papillated proboscidial organ and 

 several anterior setigerous segments. The species has a known range of 

 distribution from western Canada south to western Mexico (Berkeley 

 and Berkeley, 1952, p. 75). 



Genus NEOAMPHITRITE Hessle, 1917 



Neoamphi trite robusta (Johnson) 1901 

 Berkeley and Berkeley, 1952, p. 85, fig. 174. 



Amph'itr'ite robusta Hartman and Barnard, this volume, p. 55. 



Basin records include Santa Catalina and Santa Cruz. The species is 

 more abundantly present in shallower, rocky bottoms of the northeast 

 Pacific Ocean (Berkeley and Berkeley, 1952). 



Genus PISTA Malmgren, 1866 



Pista disjuncta Moore, 1923 

 Moore, 1923, pp. 194-196, pi. 17, fig. 9. 



Numerous individuals come from San Pedro, Santa Monica, Santa 

 Catalina and Santa Cruz Basins. However, the species is much more 

 abundantly present in slope depths, especially on muddy bottoms, where 

 it occupies thickly coated, long muddy tubes. It is not known outside 

 California. 



Pista fasciata (Grube) 1870 

 Berkeley and Berkeley, 1952, p. 79, fig. 160. 



Large tubes, measuring to 100 mm long, were taken in San Pedro 

 Basin. Individuals removed from them measure about 68 mm long by 

 5.5 mm wide. The 2 pairs of branchiae are large and loosely dendritically 

 branched. Conspicuous lateral lappets are present on the first, third and 

 fourth (= first setigerous) segments. The species has a cosmopolitan 

 distribution (Berkeley and Berkeley, 1952, p. 79). 



