100 
THE VOYAGE OF H.M.S. CHALLENGER. 
representatives of the calcareous forms, and the shells of these were no longer 
calcareous, but consisted of a thin film of homogenous silica, unaffected 
by acids, and iridescent when first taken out of spirit. There were, 
however, small specimens of a number of arenaceous species in excellent 
condition, the principal of which are the following: — Reophax scorpiurus 
and Reophax membranacea, Haplophragmium latidorsatum and Hap- 
lophragmium pseudospirale, Trochammina trullissata, and Gaudryina 
siphonella. 
Station 241. — June 23, 1875. Lat. 35° 41' N., long. 157° 42' E. Depth, 2300 
fathoms ; bottom temperature, 1°T C. ; red clay. 
The residue after washing consisted almost exclusively of Badiolaria. The 
Foraminifera present were mostly referrible to few genera : — Globigerina, 
Pulvinulina, Pullenia, Lagena, and Polymorphina, with rare specimens of 
Verneuilina spinulosa and Reophax difflugiformis. The Lagence are 
remarkable alike for their exceeding minuteness and the variety of form 
and ornamentation they assume. 
Station 242.— June 24, 187.5. Lat. 35° 29' N., long. 161° 52' E. Depth, 2575 
fathoms; bottom temperature, 1°T C. ; red clay. 
A Badiolaria mud, similar in general characters to the last described, and, like 
it, chiefly interesting in respect to the genus Lagena. 
Station 244. — June 28, 1875. Lat. 35 c 22' N., long. 169° 53' E. Depth, 2900 
fathoms; bottom temperature, 1°*2 C. ; red clay. 
The “washings of the trawl,” consisting chiefly of little stones and brown mud, 
yielded few calcareous Bhizopoda, but a great abundance of some of the 
arenaceous types. The most important of the latter were : — Hyperammina 
vagans, Pelosina cylindrica, Aschemonella catenata, and Rhizammina 
algceformis ; together with Haplophragmium latidorsatum, Haplo- 
phragmium globigeriniforme, and Reophax nodulosa, as representatives of 
the smaller Arenacea. 
Station 245. — June 30, 1875. Lat. 36° 23' N., long. 174° 31' E. Depth, 
2775 fathoms ; bottom temperature, 1°‘0 C. ; red clay. 
Besidue after washing chiefly Badiolaria and siliceous sponge-spicules ; Fora- 
minifera confined to a few thin-shelled Miliolce, and minute Arenacea. 
Station 246. — July 2, 1875. Lat. 36° 10' N., long. 178° 0' E. Depth, 2050 
fathoms ; bottom temperature, 1°’3 0. ; grey ooze. 
