FORAMINIFERA OF THE SCOTTTSH NATIONAL ANTARCTIC EXPEDITION. 997 



by the naturalists of the Challenger Expedition in lat. 53° 55' S., long. 108° 35' E., 1950 

 fathoms, in the Diatom ooze area ; but only five specimens were found after examination 

 of a large mass of the ooze, three of these being found after publication of the 

 Challenger Report. It is therefore of interest to have obtained a perfect specimen 

 among the material from Station 420, 2620 fathoms, in the Weddell Sea, outside the 

 diatomaceous zone, in a terrigenous deposit of glacial mud containing but a trace of 

 carbonate of lime ; while it is worthy of note that 19*29 per cent of carbonate of lime 

 was found in the Diatom ooze at the Challenger station (157) in which the Keramo- 

 sphsera was first discovered. 



Family ASTRORHIZIDM 

 Sub-family ASTROEHIZIN^. 



Genus Astrorhiza, Sandahl, 



Astrorhiza crassatina, H. B. Brady. 



The Scotia specimens were obtained from the washings of trawled material, and 

 reached me more or less damaged. Had they been placed in spirit when first taken, the 

 general character and structure of the whole organism might have been studied, as they 

 were present in fair quantity at Station 291. 



Distributio7i. — Station 291, glacial mud, 2500 fathoms, common; Station 295, 

 glacial mud, 2425 fathoms, few ; Station 313, glacial mud, 1775 fathoms, rare. It 

 has also been recorded from four stations in the North Pacific : near Japan, in 36 to 

 943 fathoms; off James Island, Galapagos, in 885 fathoms, from a Globigerina ooze; 

 and from the Faroe Channel, by the Porcupine, at a depth of 640 fathoms. 



Astrorhiza arenaria, Norman. 



This interesting species was obtained by the Scotia, both in the character of 

 branching cervicorn masses and the stellate form, at Station 291, 2500 fathoms, glacial 

 mud, and Station 420, 2620 fathoms, glacial mud. It has been recorded from the 

 Faroe Channel by H. B. Brady and by myself at several points, ranging in depth 

 from 530 to 650 fathoms ; also from the coast of Norway (M. and G. 0. Sars) ; from 

 Kars Fjord, 180 fathoms (Norman) ; and at the Challenger Station 142, off the Cape 

 of Good Hope, 150 fathoms. 



Genus Syringammina, H. B. Brady. 



Syringammina minuta, sp. nov. (Plate II. figs. 1-2.) 



Test adherent, consisting of a broad oval mass of branching tubes radiating from a 

 common centre, and arranged in the form of a network. Walls arenaceous, made up of 

 practically uniform fine grains of sand with a small amount of inorganic cement. 



