124 
THE VOYAGE OF H.M.S. CH ALLEN GEE. 
close proximity of two areas with widely different bottom temperature, were considered 
of sufficient importance to render the further elucidation of the physical and biological 
conditions of the channel desirable. 1 
Six of the bottom-dredgings procured on the cruise of the “Knight Errant” have 
been examined, of which four, namely, Stations 1, 4, 6 and 7 represent the warm area, 
and may be associated with Nos. 47, 50, and 51 of the “Porcupine” series; whilst the 
remainder, namely, Stations 2 and 8, are from the cold region, of which the “Porcupine” 
material from Nos. 57 and 77 also furnishes examples. 
Station 1. — July 27, 1880. Lat. 60° 4' N., long. 7° 31' W. Depth, 305 fathoms; 
bottom temperature, 47°'l Fahr. (8°‘4 C.) ; surface, 54°‘8 Fahr. (12 0, 6 C.). 
Station 4. — August 10. Lat. 50° 33' N., long. 7° 14' W. Depth, 555 fathoms; 
bottom temperature, 45°‘4 Fahr. (7°‘4 C.) ; surface, 57° Fahr. (13° - 9 C.). 
Stations 6 and 7. — August 12. Lat. 59° 37' N., long. 7° 19' W. Depth, 530 
fathoms ; bottom temperature 45°’9 Fahr. (7°*7 C.) ; surface, 56° - 6 Fahr. 
(13°-7 C.). 
The sand and mud from the warm bottoms above enumerated contained Rhizopoda of 
the large arenaceous types, such as Saccammina, Astrorhiza, Rhabdammina, Jaculella, 
Marsipella, and Hyperammina; and amongst calcareous forms, Pullenia and Splicer oidina, 
with abundance of Globigerina bulloides and Globigerina inflata. 
Station 2. — July 29. Lat. 60° 29' N., long. 8° 19' W. Depth, 375 fathoms; 
bottom temperature, 31° Fahr. ( — 0°'56 C.) ; surface, 53° Fahr. (11°’7 C.). 
Station 8. — August 17. Lat. 60° 3' N., long. 5° 51' W. Depth, 540 fathoms; 
bottom temperature, 29° - 2 Fahr. ( — 1 0, 56 C.) ; surface, 56 0, 5 (13 0, 6 C.). 
In the dredged material from the cold area the larger arenaceous Rhizopoda, Astro - 
rhizidce, are almost completely replaced by Lituolidce. Cassidulina Icevigata and Pullenia 
spliceroides are prominent species, and the genus Cornuspira is represented by a few 
specimens of gigantic size. A large proportion of the Globigerince are of the small thick- 
shelled arctic variety, Globigerina borealis. 
Pelagic Fauna. 
Gatherings were made by means of the tow-net at various depths from the actual 
surface down to thirty-five fathoms, on nine different days between July 27th and August 
1 The detailed report of the cruise of the “Knight Errant,” by Staff-Commander Tizard, K.N., and Mr. John 
Murray, assisted by various naturalists, appears in the Proceedings of the Boyal Society of Edinburgh, 1882, vol. xi„ 
pp. 638-720. 
