PLATE 33 



Figs. A-B. — Station 52, outer part of upper rise, north of submarine valley, 1460-1465 



fms. 



Figs. C-F. — Station 53, outer part of upper rise, adjacent to submarine valley, 1506 



fms. 

 A&B, Silty mud bottom (cloud in A) with possible pebbles or unidentified orga- 

 nisms (arrow 1 in A and B). Bottom covered with burrows, mounds, tracks, 

 trails, and resting places of brittle star (arrow 2 in A) and sun-star (arrow 3 

 in A). Elasipodid holothurian narrowly avoids striking the compass in A. 

 C-F, Silty mud bottom, slightly undulatory, with burrows and circular sun-star 

 imprints. Track of unknown origin in F. 



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