42. 



quill worm Uyalinoeaia artifex, the deep-sea eel 

 Synaphobranohus kaupi, the red crab Gevyon quinquedensj 

 rattails and hakes. This agreement attests to the similarity 

 between habitats found in Baltimore Canyon and on the slope. 



A slightly different pattern is found in the zonation of 

 epifauna in the two northern canyons. Table V lists the common 

 taxa observed in Lydonia Canyon. Anemones again dominate the 

 fauna of the shallow depth zone. These are a small encrusting 

 anemone that is attached to many of the glacial erratics found 

 in this canyon, the burrowing anemone Cerianthus borealis^ 

 Aotinauge longioomis and numerous small anemones that appear 

 to be juveniles. Several of the dominant taxa found in the 

 middle depth zone of Lydonia Canyon differ substantially from 

 those commonly found on the slope. These are organisms that 

 are usually associated with hard substrates. The small 

 encrusting anemone, the anemone Boloceva tuediae^ and sponges 

 are attached forms restricted to hard substrates, while the 

 shrimp prefers areas of high relief such as outcrops and 

 boulders. However, some of the other fauna in the middle depth 

 zone is similar to that commonly found on the slope and in 

 Baltimore Canyon. The differences in faunal constituents 

 attest to the greater availability of hard substrate in 

 Lydonia Canyon, 



Coverage in Oceanographer Canyon was limited to the 

 middle and deep zones. Table VI is a listing of the common 



