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ALLAN HANCOCK PACIFIC EXPEDITIONS 



VOL. 27 



TABLE 21 



Number of species of Amphipoda per depth class in the canyons and 

 basins of California. Based not only on direct collections, but imple- 

 mented also by inclusion of the known depth range from all sources of 

 the species collected in the canyons and basins. 



Depth 



Class, m 0-20 21-40 41-100 101-200 201-300 301-400 401-500 



No. of 



species 64 64 81 76 74 51 44 



501-600 601-800 801-1000 1001-1200 1201-1600 1601-2000+ 



35 34 31 25 18 16 



TABLE 22 



List of Amphipoda discussed in this paper that are known from geo- 

 graphic areas outside of the northeastern Pacific. Arranged in order of 

 increasing median depth, from Table 18. 



