26. 



fish, rattails and the deep-sea eel Synaphobranohus kaupij 

 and the red crab Geryon quinquedens. Thus, Baltimore Canyon 

 exhibits faunal trends similar to those found on the slope, 

 particularly with regard to the increasing dominance of fish 

 and crustaceans in the middle depth range. 



A slightly more complex pattern is evidenced in Lydonia 

 and Oceanographer Canyons. This is probably a reflection of 

 the higher degree of substrate variability found at intermediate 

 depths within these canyons. Lydonia Canyon is characterized 

 by exposure of large rock and consolidated clay outcrops in 

 the axis. The west wall and flank of this canyon is character- 

 ized by silty sediment with steep consolidated clay slopes. 

 The east flank is characterized by silty sediment with numerous 

 glacial erratics ranging in size from pebbles to boulders. 



The faunal components of Lydonia Canyon are shown in 

 Fig. 10. The shallow water fauna (200 to 400 meters) is 

 dominated by the crustacean Munida valida^ the starfish 

 Asterias vulgavie^ and several species of anemone Cerianthus 

 borealis t Aotinauge longioornis, Boloaera tuediae^ a small 

 unidentified anemone and many small anemones that may be 

 juvenile forms. With the exception of Cerianthus borealis 

 these anemones are found on the niimerous glacial erratics 

 present in this depth range. Slightly deeper (400 to 7 00 meters) 

 the east flank fauna is dominated by Hyalinoeoia avtifex, 

 which is replaced by fish at greater depths. The fauna of the 



