NO. 2 HARTMAN : QUANTITATIVE SURVEY 391 



9. Sta. 7713 (near no. 267). Basin slope, SE of Santa Catalina 

 Island, in 286 fms. The sediments were black sand and gravel with silt. 

 The photograph (PI. 13, bottom) showed no large surface animals, but 

 many small to large pores, mounds, trails and white shelly fragments. 

 The analyses disclosed the presence of 32 species and 139 specimens. In 

 addition to those named in the chart, there were glassy sponge spicules, 

 a sea-whip with bulbous base (1), a nemertean (1), an echiuroid with 

 anterior end lightly papillated (1), amphipods (3), a caprellid (1), a 

 cumacean ( 1 ) , and an ostracod ( 1 ) . Capsules of unknown origin, meas- 

 uring 4 by 1.2 mm, surrounded by a chitinized layer, were filled with 

 uniformly minute, spherical granules. The most abundant species were 

 Paraonis gracilis oculata (62), and Crystallophrisson sp. (15), and the 

 largest individuals were Scalibregma infiatum and an echiuroid. 



