FORAMINIFERA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 



may have been washed away, the following list of the Foraminifera obtained is probably 

 fairly representative: 



Miliolina Imcculenta, Br. 

 Astrorh/ga crassa/ii/a, l!r. 

 Pelosina cylindrica, Br. 

 Saccammina socialis, Br. 



,, sphxrica, Sars. 



Psammosphxra fusca, Sch. 

 RhaliiJammina abyssorum, Sars. 

 Saccorhiza ramosa (Br.). 



elongata (Br.). 

 Reophctf noilulosa, Br. 



pilulifeni, Br. 



lientaUnij'ontiis, Br. 



membranacea, Br. 



Haplophragmoides scitulum (Br.). 



,, rotulatnm (Br.). 



(.'rihrostomoii/fs lirndiji, Cush. 

 Trochammina globigenniformis (P. ami J.). 

 Horinosina normani, l!r. 

 Arnmo/aijena clavata (P. and J.). 

 Cyclammina pnsilla, Br. 

 Gaudryina pseudoflliformis, Cush. 

 Clavulina communis, d'Orb. 

 Cassidulina subglobosa, Br. 

 Globigerina dutertrei, d'Orb. 



,, pachyilerma (Ehrng.). 

 Truncatitlina ungeriana, d'Orb. 



Ammobaculites tenuimargo (Br.). 



The Hormosina normani from this station are exceptionally large, several specimens 

 measuring fully ^ inch across the final chamber. These were obtained from the wash- 

 ings of the mud taken by the trawl. 



STATION 337 a, lat. 59 46' S., long. 48 02' W. 



Depth 2110 fathoms. A brownish-gray sandy mud, on the border-line between a 

 glacial deposit and a Diatom ooze, with 1 per cent, of lime. Only a small amount 

 available for examination. The Foraminifera found, with the exception of one species, 

 all belong to the Arenacea: Pscemmosphaera, Rhabdammina, Saccorhiza, Ammodiscus, 

 Huplo/ili roi/inoides, Proteonina, Trochammina, Ammobaculites, Clavulina, Spiroplecta, 

 and Cristellaria. 



STATION 338, lat. 59 23' S., long. 49" 08' W. 



Depth 2180 fathoms. A Diatom ooze or volcanic sand (there being a large amount 

 of volcanic mineral particles mixed with the siliceous organisms). There is merely 

 a trace of lime. The Foraminifera found in the small amount available would indicate 

 a fairly rich Rhizopod fauna. The arenaceous forms are represented by Rhizanvrnina, 

 Proteonina, Cyclammina, Ammobaculites, and Gaudryina ; the pelagic forms by 

 dwarfed Globigerina buUoides, G. dutertrei, and G. pachyderma. 



STATION 342, lat. 56 54' S., long. 56 24' W. 



Depth 1946 fathoms. A fine-grained Globigerina ooze containing 24 per cent, of 

 lime. There are numerous volcanic mineral particles. 



This deposit gave a rich Foramini feral fauna, no less than twenty -nine genera and 

 sixty species being obtained. The Miliolidaj are represented by three genera, 

 Biloculina, Miliolina, and Spiroloculina. Among the arenaceous types, which are 

 represented by twelve genera, the more rare species M<trsij>('// cylindrica, 

 Proteonina difftugiformis, Thurammina n/lii<-itn., and Globote.rtularia anceps are 



(ROT. ROC. KDIN. TKANS., Vol.. XI. IX., 11)33.) 



