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



Recapitulation. 



We may now recapitulate the main points of this paper as given in the preceding 

 pages. 



The Challenger trawlings and drcdgings at eight deep-water Stations in the 

 Kerguelen Region, in depths greater than 12(30 fathoms, resulted in the capture of — 



272 species of Metazoa, belonging to 18G genera ; there are 



255 distinct fully-described species, of which 



164 species are known only from these dredgings, and 

 91 species extend into other regions of the ocean, viz.: "^ 



38 species are known only from other regions south of the southern tropic, 

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

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

 12 species are known from regions both south of and within (but not nortli of) the tropics. 



164 species confined to this region, added to 

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



215 exclusively deep-sea species unknown in depths less than 1000 fathoms. 

 38 species occur both above and below the 1000 fathoms line, of which 

 19 species extend into shallow water under 150 fathoms (1 from the shore). 



Of the 186 genera represented, 

 30 genera are known only from these dredgings, and other 



10 genera are known only from other regions south of the southern tropic, 2 of which 

 extend into shallower water under 1000 fathoms. 



The Challenger trawlings and dredgings at the remaining twenty-nine deep-water 

 Stations in the Southern Hemisphere, south of the tropic of Capricorn, in depths greater 

 than 1000 fathoms, resulted in the capture of (avoiding the repetition of those species 

 occurring also in the Kerguelen Region) — 



253 species of Metazoa, belonging to 182 genera ; there are 

 233 distinct fully-described species, of which 



165 species are known only from regions south of the tropics, and 

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

 25 species are known from regions within (but not north of) the tropics, 

 24 species are known from regions both within and north of the tropics, and 

 19 species are known from regions north of (but not within) the tropics. 



