PRELIMINARY REPORT. 103 
the same species of Copepods, Annelids, Siphonophores, Pteropods, and 
Tunicates, as in Station 220; a very similar assemblage of surface animals 
was also obtained at Stations 222, 223, 225, 226, 227, 228, 229, 230, 231, 
as far as Japan, varying somewhat in the relative abundance of Diatoms, 
Radiolarians, Globigerinz, Copepods, Pteropods, Tunicates, and Annelids. 
At Station 225, lat. 11° 24’ N., long. 143° 16’ E., the surface fauna, as 
noted by Dr. Willemoés Suhm, was especially rich, and the same may be 
said of Station 230, lat. 26° 29’ N., long. 137° 57’ E.; at Station 229, lat. 
22° 01 N., long. 140° 27’ E., Velella, Porpita, Ianthina, and Glaucus make 
their appearance, having been but seldom taken before on the way from 
the Admiralty Islands. At Station 231, near the Japanese coast, the char- 
acter of the water changed, and the tow-nets were filled with Diatoms and 
Noctilucse, and the proximity of a land mass was clearly indicated by the 
change in the surface fauna. 
As regards the surface organisms on the “ Challenger” line, — Japan to 
Hawaii, —at Station 237, lat. 34° 37° N., Long. 140° 32’ E., off the coast of 
Japan, no less than seventeen species of Radiolaria are recorded from the 
surface, together with Copepods, Pteropods, Tunicates, and young fishes as 
well as Annelids, Siphonophores, Ctenophores, Sagittee, Kuphausia, Lucifer, 
Cyprinide, Cuttle fish, Noctiluca, Diatoms, and Globigerine ; very much 
the same surface organisms occur at Stations 238, lat. 35° 18’ N., long. 144° 
08’ E., where the character of the hauls was again quite oceanic; 239, 240, 
lat. 35° 20’ N., long. 153° 39’ E., where Copepods were specially numerous ; 
241, 242, 243, lat. 35° 24’ N., long. 166° 35’ E., with the addition of Halo- 
bates, Appendicularize, Doliolum, Saphirine, Phronima, Phyllosoma, Tomo- 
pteris, Oxycephalus, Orbulina, Hastigera, and Diatoms in varying quantities. 
At Station 244, lat. 35° 22’ N., long. 169° 53’ E., the number of species 
of surface Radiolarians recorded is not less than forty-five. These have 
diminished again to thirteen at Station 245, lat. 36° 23’ N., long. 174° 31’ E. 
There are also about the same number recorded from Stations 247, lat. 
35° 48’ N., long. 179° 57 W.; 248, 249; lat. 87 69 N., long. 171 48 W.; 
250, 252, lat. 87° 52’ N., long. 160° 17’ W., and 253; though at the last 
station the surface Radiolarians have increased in number to over thirty 
species. At Stations 254, lat. 35° 13’ N., long. 154° 43’ W., 255, 206, lat. 
