FORAMINIFERA OK THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 163 



Uvigerina pygrn&a, Truncatul ina lobatula, Pulvinulina canariensis, and P. crassa, 

 with Nonioniiia n>nbilictl</. 



STATION 459, lat. 41 30' S., long. 9 55' \V. 



Depth 1998 fathoms. A typical South Atlantic fi lie-grained Globigerina ooze, 

 containing 71 per cent of lime. 



( >nly a small quantity available for examination, but this yielded a somewhat long 

 and interesting list of Fonuninifera. Amongst the most noteworthy of these are as 

 follows: The strictly arenaceous types are but sparingly represented, Reophax distans, 

 Proteonina difflugiformis, Cribrostomoides bradyi, Ammochilostoma galeata, and 

 S/n'roplecta americuna ; 9 species of Miliolininse amongst these are Biloculina 

 serrata, B. murrhi/na, and B. tubulosa, all deep-sea types. Textularidse are represented 

 by 9 species, and Lagenidse by no less than 23 species, among which may be noted as 

 the rarer forms L. stelligera, L.feildeniana, and L. truncata. The Globigerinidse, which 

 make up the greater portion of this deposit, are represented by 1 1 species ; the small 

 varieties of G. bulloides and G. dutertrei are by far the most abundant. G. sacculifera, 

 (7. conglobata, and P idle ma obliquiloculata, with Pulvinulina micheliniana, and 

 P. canariensis, types of the warmer-water areas of tropical seas, are met with here in 

 a more or less dwarfed and stunted condition. 



STATION 467, lat. 40 08' S., long. 1 50' E. 



Depth 2645 fathoms. A Globigerina ooze containing 46 per cent of lime. A 

 considerable variety of Foraminifera was obtained from this deposit, though the 

 specimens are few in numbers, and of small dimensions individually. The genera 

 represented are Biloculina, Miliolina, Proteonina, Cribrostomoides, Cyclammina, 

 Ammobaculites ; Textidaria, Gaudryina, Bolivina, Virgulina, Cassidulina, and 

 Layena, which are represented by ten species chiefly of the smaller deep-water types ; 

 also Nodosaria and Cristellaria, Globigerina by four species, with Pidlenia, Trun- 

 catidina, Pulvinulina, Rotalia, and Nonionina. 



STATION 468, lat. 39 48' S., long. 2 33' E. 



Depth circa 2645 fathoms. This deposit is somewhat similar in composition to that 

 obtained at Station 467, but with only 40 per cent of lime. The Foraminifera 

 obtained here are fewer, with regard to the bottom-living forms. Globigerina 

 bulloides and G. inflata, however, are more abundant, while Truncatulina would 

 appear to take the place of Lagena, so far as numbers of species go. The arenaceous 

 types are represented by Psainmospluvrafusca, Rhabdammina discreta, and Proteonutu 

 difflugiformis , while the higher forms are absent. 



(ROY. 8OC. EDIN. TRANS., VOL. XLIX., 1037.) 



