104 
THE VOYAGE OP H.M.S. CHALLENGER. 
and organic constituents. It contained a rather larger number of Fora- 
minifera, both of arenaceous and calcareous species, but they represent 
collectively a very limited fauna. 
Station 296. — November 9, 1875. Lat. 38° 6' S., long. 88° 2' W. Depth, 1825 
fathoms ; bottom temperature, 1°‘2 C.; red clay. 
Light brown mud, which after washing had all the features of a Globigerina 
ooze. Amongst the more striking species were Pulvinulina crassa (very 
common), Pulvinulina pauper ata and Pulvinulina favus, Cassidulina 
subglobosa, Verneuilina pygmcea, Ehrenbergina serrata, Virgulina sub- 
depressa, Hormosina normani (broken), and Hyperammina ramosa. 
O. Stations 299 to 313, South Pacific and Magellans Strait. From Valparaiso 
to the Island of Juan Fernandez, thence southwards amongst the Islands on 
the west coast of Patagonia, and through Magellans Strait to the 
South Atlantic. 
Station 299. — December 14, 1875. Lat. 33° 31' S., long. 74° 43' W. Depth, 2160 
fathoms; bottom temperature, l°’l C.; grey mud. 
The dredged material consisted almost exclusively of a tubular branching 
chitino-arenaceous Rhizopod — Rhizammina algceformis. A small quantity 
of mud brought up at the same time yielded a considerable number of 
interesting sandy species, belonging to the genera Haplophragmium, 
Reophax, Trochammina, Hormosina, and Rhabdammina, together with a 
few calcareous forms. 
Station 300. — December 17, 1875. Lat. 33° 42' S., long. 78° 18' W. North of 
Juan Fernandez. Depth, 1375 fathoms ; bottom temperature, l° - 5 C.; Globi- 
gerina ooze. 
Contained a good deal of mud. After Globigerina and Pulvinulina, the genera 
most largely represented were Pullenia, Truncatulina, Uvigerina, and 
Biloculina. Of characteristic species, Cassidulina subglobosa and Pul- 
vinulina favus were the most important ; Bolivina decussata, Sagrina 
virgula, and Uvigerina angulosa are also forms of some interest. Broken 
specimens of Rupertia stabilis and Ehrenbergina serrata were noticed. Of 
the sandy types, Rhizammina algceformis alone need be mentioned. 
Station 302. — December 28, 1875. Lat. 42° 43' S., long. 82° 11' W. Depth, 
1450 fathoms; bottom temperature, 1°‘5 C.; Globigerina ooze. 
A typical Globigerina deposit, similar in its prevailing forms to that last named, 
