REPORT ON THE FORAMINIFERA. 
99 
Station 227. — March 27, 1875. Lat. 17° 29' N., long. 141° 21' E. Depth, 2475 
fathoms ; bottom temperature, 1°'0 C. ; red clay. 
Fine mud, leaving scarcely anything after washing. The Foraminifera confined 
to a few very minute specimens of the smaller arenaceous species and one 
or two Cassidulince. 
Station 231. — April 9, 1875. Lat. 31° 8' N., long. 137° 8' E. Depth, 2250 
fathoms ; bottom temperature, 0°*6 C. ; grey ooze. 
Fine grey mud, with a considerable variety of Foraminifera, though the 
specimens are few in number and of very small dimensions individually. 
The genera represented are Globigerina, Pulvinulina, Pullenia, Chilostomella, 
Lagena , Miliolina, Biloculina, Haplophragmium, and Gaudryina. 
Station 232. — May 12, 1875. Lat. 35° 11' N., long. 139° 28' E. South of 
Japan (Hyalonema ground). Depth, 345 fathoms ; bottom temperature, 
5 o, 0 C. ; sandy mud. 
Black mud with annelid tubes, Foraminifera, Badiolaria, and Diatomacese. The 
genus Globigerina is tolerably abundant, whilst Pulvimdince, except 
Pidvinulina partschiana, are comparatively rare. Bulimina, Chilostomella, 
Bolivina, Uvigerina, and Truncatulina are all conspicuous types. Amongst 
the rare species Allomorphina trigona, of which two or three specimens were 
found, and Textidaria quadrilatera are the most interesting. 
Station 233 B.— May 26, 1875. Lat. 34° 20' N., long. 133° 35' E. Inland Sea, 
Japan. Depth, 15 fathoms ; mud. 
Black mud, with shell fragments and Holothurise, Ostracoda, and some 
Diatomacese. Contained comparatively few Foraminifera, and all of common 
in-shore types, such as Rotalia, Polystomella, Nonionina, Miliolina, and 
Bolivina. 
M. Stations 237 to 270. — North Pacific, from Japan eastward to about long. 154° 
W., thence directly south by the Sandwich Islands to the Equator. 
Station 238. — June 18, 1875. Lat. 35° 18' N., long. 144° 8' E. Depth, 3950 
fathoms; bottom temperature, l o, 0 C. ; red clay. 
This is the deepest sounding that has come under my notice. The quantity of 
material available for examination was small, and consisted of dark brown, 
muddy clay, which was much reduced in bulk by washing. It contained 
Radiolaria in abundance, but very few Foraminifera. Miliolce were the only 
