484 DR MURRAY ON THE DEEP AND SHALLOW-WATER MARINE FAUNA 



21 species are known only from other regions south of the tropics, 

 7 species arc known from regions both south of and within (but not north 



of) the tropics, 

 fi species are known from regions both south and north of (but not 



within) the tropics, and 

 2 species are known from regions both south of, within, and north of the tropics. 



30 species confined to tliis region, added to 



13 species which extend into other regions, make a total of 



43 species known only from depths over 150 fathoms (of which 5 species reach deep- 

 water over 1000 fathoms) ; the other 



23 species extend into shallow water under 150 fathoms (of which 3 species are known 

 at the same time from deep-water over 1000 fathoms). 



Of the 61 genera represented, 



4 genera are known only from these dredgings, and other 



2 genera are known only from other regions south of the tropics. 



In the shallow waters of the Kerguelen Region, in depths less than 150 fathoms, 

 the Challenger procured — 



533 species of Metazoa, belonging to 325 genera ; there are 



495 distinct fully-described species, of which 



326 species are known only from this region, and 



1G9 species extend into other regions of the ocean, viz. : 



lUl species are known only from other regions south of the tropics, 

 32 species are known from regions both south and north of (but not within) the tropics, 

 20 species are known from regions both south of and within (but not north of) the 



tropics, and 

 16 species are known from regions both south of, within, and north of the tropics. 



326 species confined to this region, added to 



92 species which extend into other regions, make a total of 

 418 species known only from shallow water under 150 fathoms ; the other 



77 species occur both above and below the 150 fathoms line, of which 



28 species extend into deep water over 1000 fathoms ; 



18 species hav,e been recorded as occurring in the fossil condition. 



