162 MR F. GORDON PEARCEY ON 



List of Foraminifera from Station 420 continued. 



Webbinella hemisphxrica (P. and J.). 

 Crithionina pisum, var. hispida, Flint. 

 Thnrammina papillata, Br. 



,, favosa, var. reticulata, var. nov. 



Tolypammina vagans (Br.). 

 Ammolaijena clavata (P. and J.). 

 Haplojihragmoides tndlissata (Br. ). 



glomeratum (Br.). 



,, rotulatum (Br.). 



umbitieatum, sp. nov. 



,, subglobosum (G. 0. S.). 



Cribrostomoides bradyi, Cusbn. 



Cyclammina cancellata, Br. 



,, pusilla, Br. 



,, contorta, sp. nov. 



Ammobuculites tenuimargo (Br.). 

 Placopsilina vesicular is, Br. 

 Globigerina dutertrei, d'Orb. 



,, pachyderma (Ehrng.). 



Pullenia sphssroides (d'Orb.). 

 Truncatulina wucllerstorfi (Sell.). 



,, pygmxa, Hantk. 



Anomalina polymorpha, Costa. 



STATION 421, lat. 68 32' S., long. 10 52' W. 



Depth 2487 fathoms ; bottom temperature 31 - 5 F. A glacial clay similar to that 

 from Station 420, bub containing 5 per cent of lime. Only a small quantity was 

 received for examination, in which the following were observed : Globigerina bulloides, 

 G. dutertrei, G. dubia, Pullenia sphseroides, and Truncatulina wuellerstorfi. 



STATION 438, lat. 56 58' S., long. 10 03' W. 



Depth 2518 fathoms. A Diatom ooze with a large amount of volcanic mineral 

 particles. Slight traces of lime. 



Only a very small quantity was sent me, and the only Foraminifera found were one 

 specimen of Cyclammina pusilla and a few Globigerina dutertrei. 



STATION 447, lat. 51 07' S., long. 9 31' W. 



Depth 2103 fathoms. A typical Diatom ooze containing 9 per cent of lime. 



Foraminifera well represented, including : 2 Miliolidse, 11 genera of the arenaceous 

 types, 3 Textularidse, 4 species of Lagena, including the rare forms L. staphyllearia 

 and L. feildeniana ; Globigerina dutertrei moderately abundant ; 3 species of Pullenia, 

 2 of Truncatulina, 2 of Pulvinulina, 1 Rotalia, and 2 of Nonionina. 



STATION 451, lat. 48 06' S., long. 10 05' W. 



Depth 1741 fathoms. A deposit transitional in type between Diatom ooze and 

 Globigerina ooze, containing 55 per cent, of lime and 30 per cent, of siliceous 

 organisms. 



The Grlobigerinidse are the predominating types present, the only two arenaceous 

 forms found being Proteonina diffluyiformis and Gordiammina charoides. The 

 characteristic feature of the Foraminifera from this station is the presence of the more 

 northern types, such as Bolivina nobilis, B. reticulata, Bulimina aculeata, B. buchiana, 



(ROY. soc. BDIN. TRANS., VOL. XLIX., 1036.) 



