138 



NOTES ON THE COPEPODA OF THE 



at the surface and deep as the season progressed, driving out the waters 

 of southern origin. This was an exceptional year. 



The physical conditions in the Faroe Channel are, as is well known, 

 widely dillerent from those existing in the neighbouring Atlantic, and 

 in this area we have a very mixed fauna, but it is not difficult to 

 determine which species of Copepoda are, so to say, indigenous to this 

 area. In the tables appended the species captured at each station in 

 the 1903 cruise are tabulated. I purposely leave out the consideration 

 of the observations made exclusively in the Faroe Channel in the three 

 preceding years for future consideration. Only three stations in the 

 "cold-water area" (F. vii., viii., ix.) were visited in 1903, but they 

 serve for comparison with those on the southern side of the Wyville- 

 Thompson ridge. 



Throughout the cruise there was a remarkable paucity of Copepoda 

 at the surface as far as species are concerned, and the well-known fact 

 is again established that the nearer the cold ocean is approached the 

 smaller the number of species, but the. greater the abundance of 

 individuals of the same species. Thus between 51° and 52" N., thirteen 

 species occurred at the surface ; at no .station north of this were 

 there more than six species found. 



Between lat. 51" and 52° N. there occurred at 



Between 52° and 54° N. there occurred at 



fathoms, 8 species. 

 100 „ 15 „ 



150 fathoms, 12 species. 

 250 „ 6 „ 



Between 54° and 55° N. there occurred at 



