6 DISCOVERY REPORTS 



curiously rare at St. 383, represented by two specimens of G.pachyderma at St. 382 and 

 entirely absent at St. WS 400. Several new species were found in the area, also many 

 of those recorded in the Scotia Sea. Signs of Pacific influence are numerous at the pairs 

 of stations 384, 385 and 386, 387 on each side of the convergence. Apart from the 

 evidence of the Globigerinoe and Globorotaliae, Sts. 384, 385 and 386 have an extra- 

 ordinary variety of Lagenae, many of which have not been recorded except in the south- 

 west Pacific. Other species known as Pacific species found in this area include Cassi- 

 dulinapacifica, C. elegans, Virgulina schreibersiana var. complanata, Ehrenbergina hystrix, 

 E. bradyi, Bolivina decussata, Polymorphina extensa and Gaiidryina ferruginea. 



VI. BRANSFIELD STRAIT AND SOUTH SHETLAND ISLANDS 



Sts. 171-2, 175, 177, 194-204, 206, 209, 377; 62° 57' S., 60" 20' 30" W. ; WS 381-9, 391-6, 399, 

 476, 479, 480-90, 493, 494 A, 494 B. 



The Bransfield Strait, which could not be marked in Fig. 2 on account of the crowded 

 stations in it, is a broad land-locked sea between the South Shetlands and the northern 

 extremity of Graham Land. A great variety of material was received from the Strait and 

 southern coasts of the South Shetlands, but there is unfortunately none from the 

 northern or outer coast of those islands. Nearly all the gatherings received were 

 soundings, terrigenous or volcanic muds, and they give a first impression of a region 

 with scanty foraminiferal fauna, some fifty species constituting a general list, selections 

 from which, varied at nearly every station, give an average of probably less than thirty 

 species for each station. But now and again there is a richer sounding, and from these, 

 and from a few dredgings, quite a long list of genera and species has been obtained, 

 including a number of new or rare and interesting species. On the gatherings as a whole 

 we can construct a very good general idea of the fauna of an Antarctic continental shelf 

 and slope. Arenacea predominate both in species and specimens; Globigerinae, except 

 G.pachyderma, take quite a secondary position; Miliolidae are rare, although the large 

 size attained by some species of Pyrgo, which are not uncommon, makes them con- 

 spicuous by contrast with the small size of most of the organisms ; the Textulariidae are 

 well represented as regards species, but play quite an inconspicuous part in the whole, 

 as also do the Lagenidae, in spite of the fact that they are represented by many genera 

 and species. The other families are poorly represented. 



Among the new or otherwise interesting species obtained from this region were 

 Astrorhiza polygona, Pilidina jejfreysii, Tlnirammina spiimosa, T. corrugata, Bathysiphon 

 argillaceus, and Ehrenbergina parva. 



Pacific influence is greater than might have been expected in such a land-locked 

 area. A long list of species could be compiled, including species already recorded in the 

 Falklands area, and others known hitherto only from the Ross Sea and south-west 

 Pacific. Among others are Bolivina compacta, Bulimina patagonica, Cassidulina pidchella, 



C. laevigata, Cibicides dispars, Dendronina arborescens var. antarctica, Discorbis turbo, 



D. vilardeboana, Ehre?ibergina pupa, Elphidium macelliim, E. owenianum, Globigerina 

 bidloides, G. triloba, Globorotalia crassa, G. menardii, Hyperammina clavigera, Lagena 



