52 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL, 27 



In 266 meters, with 59.2 grams: 



polychaetes, chie^y Alaldane 82.8% 



a large nemertean 13.0 



4 sipunculids 3.4 

 others, less than 1.0 



In 362 meters, with 98.4 grams: 



5 Brissopsis pacifica 62.3% 

 12 holothurians 14.2 

 polychaetes 13.0 

 an echiuroid 7.5 

 mollusks 2.9 

 ophiuroids 0.1 



In 379 meters, with 133.6 grams: 



polychaetes 47.15% 

 1 Allocentrotus and 



1 Brissopsis 39.85 

 1 echiuroid 7.6 



1 holothuroid 3.8 



mollusks 1-3 



others, less than 1.0 



In 549 meters, with 17.5 grams: 



3 brissopsids 71.4% 



polychaetes 18.8 

 ophiuroids 9.8 



In 559 meters, with 31.3 grams: 



3 echinoids 60.7% 



polychaetes 22.3 

 mollusks 9.0 



ophiuroids 8.0 



In 957 meters, with 19.0 grams: 



polychaetes 16.5% 

 an echinoid 5.26 



isopods and other 

 crustaceans 



4.8 



mollusks with shells 2.64 



others, less than 1.0 



In 1272 meters, with 4.0 grams: 



polychaetes 84.0% 



ophiuroids 16.0 



Weights were negligible in samples coming from rocky bottoms. 



