FORAMINIFERA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 1035 



Foraminifera fairly well represented, especially the larger arenaceous types, such 

 as Rhahdammina, Psammosphsera, Saccammina, Pelosina, Saccorhiza, Reophax, 

 Hormosina, Tolypamm.ina, Haplophragmoides, Trochammina, Cyclammina, several 

 Textularidse, several Lagense. Glohigerinse, tolerably abundant, especially the small, 

 rounded variety G. hulloides and G. dutertrei, together with TruncatuUna wuellerstorfi, 

 T. tenuimargo, T. tenera, Pulvinulina exigua, and Nonionina stelligera. 



Station 418, lat. 71° 32' S., long. 17° 15' W. 



Depth 1221 fathoms ; bottom temperature 31°'9 F; A glacial clay similar to that 

 from Station 417. Here also the quantity of material was insufficient to give a full 

 idea of the Foraminiferal fauna which may be expected to exist in this locality. 

 Those obtained are : — Bathysiphon JUiformis, Psammosph^ra fusca, Reophax 

 nodulosa, Haplophragmoides rotulatum, Crihrostomoides bradyi, Clavulina com- 

 munis, Virgulma schreihersiana, Glohigerina dutertrei, and Cristellaria convergens. 



Station 420, lat. 69° 33' S., long. 15° 19' W. 



Depth 2620 fathoms; bottom temperature 31°'5 F. A brownish-gray gritty 

 glacial mud or clay. No lime in the sounding-tube sample. Some two pounds weight 

 of this deposit were prepared for examination, including trawl washings. The washing 

 away of the finest material from these may account for the absence of the more minute 

 Textularidse and Lagenidse which one might expect to obtain from this locality ; but 

 the richness in arenaceous species makes it desirable to print in extenso the species 

 obtained from this locality and extremely far south station. Several species show a 

 high development in form and size, especially in Reophax, Psammosphsera, and 

 Hormosina. Most of the more prominent genera of the Astrorhizidse are represented, 

 and no fewer than seven new species and a new variety are described. 



List of Foraminifera from Station 420. 



Technitella asciformis, sp. nov. 

 Rhizammina indivisa, Br. 

 Rhahdammina discreta, Br. 



Biloculina ringens (Lamk.). 

 „ depressa, d'Orb. 

 Milioiina bucculenta, Br. 



„ circularis (Born.). 



„ bucculenta, var. placentiformis, Br. 

 Keramosphxra murrayi, Br. 

 Saccammina sphserica, M. Sars. 



„ socialis, Br. 



Sorosphxra confiisa, Br. 

 Psammosphsera fusca, Sch. 

 Astrorhiza arenaria, Norm. 

 Pelosina arborescens, sp. nov. 



„ cylindrica, Br. 

 Syringammina viinuta, sp. nov. 

 Tholosina bulla (Br.). 

 Technitella raphanus, Br. 



„ cornuta, Br. 



Bathysiphon filiformis, M. Sars. 

 Hyperammina friabilis, Br. 



„ subnodosa, Br. 



Saccorhiza ramosa (Br.). 

 Achomonella catenata. Norm. 



,, ramidiformis, Br. 



Reophax nodulosa, Br. 

 ,, pilulifera, Br. 

 ,, adunea, Br. 

 ,, rohustum, sp. nov. 

 Hormosina globulifera, Br. 



„ irregularis, sp. nov. 



