156 MR F. GORDON PEARCEY ON 



ornamented with " honeycomb "-like reticulations. P. favus is a typical deep- water 

 species, and is found most abundantly in the South Pacific, between the equator 

 and lat. 42 43' S. The farthest north record of its occurrence is the Challenger's, 

 about eight degrees north of the equator. The Scotia station is therefore the most 

 southerly. Its bathymetrical range is from 1375 to 2600 fathoms. 



Genus ROTALIA, Lamarck. 



Rotalia soldanii, d'Orbigny. 



Obtained at Stations 342 (common), 447 (rare), 467, and 468 (few). R. soldanii 

 is a typical deep-sea form, and has a world-wide distribution, extending from lat. 60 N. 

 to as far south as the Antarctic Continent. 



Family NUMMULINID^E. 



Sub-family POLYSTOMELLIN^. 



Genus NONIONINA, d'Orbigny. 

 Nonionina pompilioides (Fichtel and Moll). 



This typical deep-water form was found sparingly at Stations 286, 342, 447, and 

 467. N. pompilioides has been collected from most of the deep-water areas all over 

 the world. 



Nonionina umbilicatula (Montagu). 



This cosmopolitan form was taken at Stations 447, 451, 459, 467, and 468, although 

 not in any numbers ; its bathymetrical range extends from 30 to 3125 fathoms or 

 deeper. 



Nonionina stelligera, d'Orbigny. 



A few specimens of this somewhat rare species were obtained from Station 417, 

 1410 fathoms; this is the farthest south record, and the greatest depth at which the 

 species has been collected. 



Nonionina boueana, d'Orbigny. 



This shallow-water form was taken at Station 346, 56 fathoms, in moderate 

 abundance. 



Genus POLYSTOMELLA, Lamarck. 

 Polystomella striatopunctata (Fichtel and Moll). 

 This very common species was taken in quantities at Station 118, 2^ fathoms. 



Polystomella macella (Fichtel and Moll). 

 Obtained (common) at Station 118. 



(ROY. SOC. UDIN. TRANS., VOL. XLIX., 1030.) 



