A-42 



Anthomastus agassizii^ Paramuvioea borealis , Pennatula sp. 

 and Aoanthogovgia armata occurred at approximately 2250 and 

 2500 meters depth in this area. 



The location of coral populations seen on the continen- 

 tal slope near Alvin Canyon is shown in Figure E6. Acanella 

 arbusauta, Anthomastus agassizi-i , Paramuriaea borealis , 

 Flabellum alabastrum and sea pens were found in this area of 

 mixed substrates. 



Dives in Oceanographer Canyon (Figure E7) covered the 

 canyon axis and west wall, revealing a pattern of coral dis- 

 tribution that is somewhat different from that seen farther 

 north in Heezen Canyon. Desmophyltum cristagalti , Anthomas- 

 tus agassizii and Paramuvioea bovealis were found in the 

 axis of the canyon while P. bovealis , Aoanthogovgia avmata 

 and A. agassizii occurred on cobbles and glacial erratics 

 on the canyon wall. Some individuals of Aoanella avbusaula 

 were seen on the soft substrate of the canyon wall. 



The dives in Heezen Canyon (Figure E8) provide good 

 comparative coverage in both the canyon axis and on the 

 canyon wall. Corals restricted to hard substrates, such as 

 Desmophyltum ovistagalli^ Anthomastus agassizii and 

 Pavamuvioea bovealis were seen on outcrops in the canyon 

 axis, while Pennatula sp. , Aoanella avbusoula and Flabellum 

 alabastvum were seen on the soft substrate of the canyon 

 floor. On the canyon wall soft substrate species such as 



