1186 
THE VOYAGE OF H.M.S. CHALLENGER. 
Station 319. 
Um;AM!vM> ntoM 
Sf RFACK N m<. 
Station 320. 
ilowTi to 1500 fathoms. At 11.15 a.m. made sail. The same birds as noted at the 
previous Station were seen, along with a very small species of Thalassidroma. 
Lobos Island distant at noon, 410 miles. Made good 86 miles. Amount of current 
21 miles, direction S. 48'* E, 
Surface Organisms. — The following species are recorded from the surface at this 
Station : — 
Radiol,\ria (Haeckel, Zool. pt. 40). 
Cypassis eucolpos, Haeckel. 
Amphibrachium dilatatum, Haeckel. 
Lnmacospongus lai'nacillifer, Haeckel. 
Challengeria thonisoni, Murray. 
CoPEPODA (Brady, Zool. pt. 23). 
Saphirina ovalis, Dana. 
,, in^qualis, Dana. 
,, reticulata, n.sp. 
In addition, the following are recorded in the note-books : — Peridinium tripos, 
Glohigerina, Acanthometrae and compound Radiolaria, Medusae, Ctenophorae, Echinoderm 
lar\’aj, Hyperids, Phronima, larvae of Euphausia. The stomachs of the Salpse contained 
Coccospheres, Diatoms, and Peridinium. It was curious to note the absence of the small 
red Copepods so abundant on the previous day, their place being taken by several species 
of Saphirina and a few blue Copepods. Sharks and flying fishes were seen. 
Saphirina opaca, Lubbock. 
„ gemma, Dana. 
Amphipoda (Stebbing, Zool. pt. 67). 
Primno sp. (?). 
Tunicata (Herdman, Zool. pt. 76). 
Salpa runcinata - fusiformis, 
Chamisso — Cuvier. 
,, democratica - mucronata, 
ForskM. 
Station 320 (Sounding 407), Falkland Islands to Rio de la Plata (see Chart 42 
and Diagram 22). 
February 14, 1876 ; lat. 37 17' S., long. 53° 52' W. 
Temperature of air at noon, 66°'8 ; mean for the day, 62°'5. 
Temperature of water : — 
Surface, . . . . 67 ’5 
25 fathoma, . . . 60’0 
50 „ ... 460 
75 „ ... 440 
100 „ ... 43-0 
125 420 
150 „ . . . 410 
175 „ . . . 40-3 
200 „ ... 400 
225 39-8 
O 
250 fathoms, . 
39-5 
275 
39-3 
300 
39-1 
350 
38-8 
400 
38-4 
450 
38-2 
500 „ 
37-9 
550 „ 
37-6 
Bottom, 
37-2 
