PLATE 15 



Figs. A-F. — Station 29, upper slope, west of canyon, on small ridge, 150-180 fms. 



A-C, Sandy silt bottom with some shell; poorly preserved interference ripple marks 

 in upper margin of A; burrows in B; subcircular "fish-nest" structures in A and 

 B probably produced by benthic fish; unidentified fish above bottom in B and C. 

 Canceroid crab and floating medusoid coelenterate (arrow) in C. 

 D&E, Shelly sandy silt bottom with patches of subrounded granules, pebbles and 

 cobbles (See D, north of compass vane). Poorly preserved, low amplitude ripple 

 marks in D. Abundant Hyalinoecia tubes in E. Canceroid crab in D. Small eel 

 in E (arrow). 



F, Bottom similar to above. Note abundance of polychaete tubes having a statistical 

 bimodal orientation. 



40 



