REPORT ON THE FOR AMIN IF ERA. 
101 
The “ washings of dredge,” which were the subject of examination, consisted 
chiefly of rounded pieces of pumice, some of them almost covered with 
Hyperammina vagcms. The general character of the Rhizopod-fauna was very 
similar to that of Station 244, abounding in the large sandy types, such as 
Hyperammina, Pelosina, and Aschemonella, as well as in the smaller species 
of Hormosina and Reopliax. These, with a few specimens of Saccammina 
sphcerica, built up of Globigerina shells, together with Verneuilina propinqua 
and two or three varieties of Haplophragmium, represented the arenaceous 
groups. Of calcareous Foraminifera there were comparatively few in this 
rough material ; such as were present were of the common Globigerina ooze 
species. 
Station 253.— July 14, 1875. Lat. 38° 9' N., long. 156° 25' W. Depth, 3125 
fathoms ; bottom temperature, 1°'0 C. ; red clay. 
Sticky mud, of which the little residue left after washing consisted chiefly of 
Radiolaria. It contained relatively a good many small arenaceous Foramini- 
fera, such as Reophax nodulosa and Reophax scorpiurus, Ammodiscus incertus 
and Ammodiscus gordialis, Thurammina papillata, Haplophragmium 
globigeriniforme, and fragments of Aschemonella catenata ; together with a 
few calcareous species. Some of the Miliolce had extremely thin shells, and 
exhibited the same bluish or iridescent tinge, when freshly taken out of spirit, 
as the specimens from Station 238, already alluded to. 
Station 254.— July 17, 1875. Lat. 35° 13' N., long. 154° 43' W. Depth, 3025 
fathoms; bottom temperature, l o, 0 C. ; red clay. 
This sounding was very similar to the foregoing ; but the quantity washed 
was small, and the residue only sufficient to indicate in a general way that 
the Foraminifera were of much the same character. 
Station 256.— July 21, 1875. Lat. 30° 22' N., long. 154° 56' W. Depth, 2950 
fathoms; bottom temperature, 1°‘2 C. ; red clay. 
The description of the material from Station 253 applies in all essential 
particulars to this also, except that the number of small arenaceous Forami- 
nifera was not here so large, nor the list of species so long. 
Station 260 A. — July 31, 1875. Off Reefs, Honolulu, Sandwich Islands. Depth, 
40 fathoms ; coral-sand. 
This material presented a Rhizopod-fauna rich in the ordinary coral-reef species 
of Heterostegina, Amphistegina, Polylrema, Cymhalopora, Textularia, 
Orbitolites, and the various Milioline genera. Amongst the less common 
(ZOOL. CHALL. EXP. — PART XXII.- — 1883.) Y 14 
