40 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 27 



'Vll 2 gm/ sq.m., in 177 m. 53.0 gm/ sq.m., in 378 m. 



358.4 gm/ sq.m., in 1 19 m. 14.6 gm/ sq.m., in 676 m. 



124.8 gm/ sq.m., in 367 m. 1.8 gm/ sq.m., in 755 m. 

 1 15.8 gm/ sq.m., in 573 m. 



Again the correlation of highest values is with sticky or silty mud, 

 and the lowest with sandy or gravelly bottoms. In terms of major 

 groups of animals, the following percentages of weights are shown : 



In 1 19 meters, with 89.6 grams: 



polychaetes 44.98% 



a pagurid crustacean 44.75 



mollusks 4.7 



an Astropecten 4.8 



others, less than 1.0 



In 177 meters, with 106.8 grams: 



2Brisaster 45.88% 

 polychaetes, especially 



Travisia pupa 30.52 

 mollusks, esp. Acila and 



Dentalium 13.30 



ophiuroids 7.48 



a sipunculid 1.97 



others, less than 1.0 



In 367 meters, with 62.4 grams: 



A A rhynchite tc\\\nro'\As 81.73% 



polychaetes 11.54 



mollusks 6.41 



crustaceans 0.32 



In 378 meters, with 26.5 grams: 



2 brissopsids, Brisaster 72.45% 



polychaetes 7.3 



In 573 meters, with 57.9 grams: 



A Arhynchite tc\\\\xro\6.s 36.6% 



a brissopsid, Brisaster 32.8 



polychaetes 18.5 



nemerteans 7.3 



a ghost shrimp 4.8 



In 676 meters, with 7.3 grams: 



polychaetes, nearly 100.0% 



