12 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 22 



TABLE 2 



Samples from San Pedro Basin and slopes above sill depth, listed by 

 depth ranges of 50 m. Subsill samples near sill depths are richer in ani- 

 mal life than those in the middle and deeper parts of the basin. Slope 

 data, above sill depths, from Hartman, 1955a. 



One of the shallower samples from sta. 5135 contained living Cyclo- 

 pecten not previously recovered from subsill depths. Another deep one 

 from sta. 3019 contained a small polynoid annelid in which the setae 

 harbored a suctorian related to Acineta. A sample from sta. 5002 con- 

 tained five specimens of a mysid shrimp, A cant homy sis, possibly captured 

 from pelagic waters. 



THE OUTER BASINS: 



SANTA CATALINA, SANTA CRUZ, SAN NICOLAS, 



TANNER, WEST CORTES, SAN CLEMENTE 



The best sampled, Santa Catalina Basin, with 10 stations and photo- 

 graphs (Emery, 1956), demonstrates the presence of a diversified meta- 

 zoan fauna having its affinities with that at sill and slope depths. Char- 

 acteristic are the dead shells of a brachiopod Lacqueus, a crinoid Floro- 

 metra, large polychaetes Asychis, and many smaller kinds of animals. The 

 most abundant kinds are various species of polychaetes, some of which 

 atain sexual maturity. None of the samples has been without life. The 

 finer screenings consistently contain many foraminiferan shells, some 

 radiolarians, sponge spicules, an occasional fish otolith or fish scales, 



