FORAMINIFERA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 125 



Genus MARSIPELLA. Norman. 

 Marsipetta cylindrica, H. B. Brady. 



Fragmentary portions of both the straight and the curved tests of this species were 

 obtained amongst the material from Station 342, 1946 fathoms, in a deposit of 

 Globigerina ooze. They are of a more robust character than the type specimen. This 

 species has been recorded from the Faroe Channel, both in the warm and in the cold 

 area, in 530 to 640 fathoms; in the South Atlantic, 1900 fathoms; South Pacific, 210 

 fathoms; North Pacific, 139 to 1875 fathoms; and oft" Juan Fernandez, in 1375 

 fathoms. 



Genus BATHYSIPHON, G. 0. Sars. 

 Bathy siphon filiformis, G. 0. Sars. 



Obtained at Stations 301, 418, and 420, but nowhere abundant. The Scotia 

 specimens, for the most part, show a considerable number of mineral particles built into 

 the outer portion of the walls of the tests, giving them a more robust appearance than 

 that of the type. This is due, doubtless, to the nature of the glacial deposit on which 

 they were taken. Before the volume on the Challenger Foraminifera was published, 

 Bathysiphon was looked upon as an exclusively northern type ; it is therefore of 

 interest to have found it so far south. Since the Challenger publication it has been 

 recorded from six localities in the North Pacific, in depths from 617 to 1201 fathoms. 

 It was taken for the first time in considerable abundance by G. 0. SARS in the 

 Hardanger Fjord, and occurs in deep water in the Bay of Biscay ; off Banda, Amboyna, 

 in 1425 fathoms ; and in the warm area of the Faroe Channel, 570 fathoms. 



Genus RHIZAMMINA, H. B. Brady. 

 Ehizammina indivisa, H. B. Brady. 



Represented in the Scotia material by three specimens and a few fragments from 

 Station 420, 2620 fathoms. Known from six stations in the North Pacific (CUSHMAN), 

 210 to 2086 fathoms ; off the Cape of Good Hope (BRADY), 150 fathoms ; and from the 

 Faroe Channel (BRADY and PEARCEY), 540 fathoms. 



Rhizammina algsefonnis, H. B. Brady. 



This peculiar wild-growing species was obtained in a fragmentary condition, but 

 typical in structure (dichotomously branching flexible tubes) at Stations 338 and 447, 

 both Diatom ooze. The species is so delicate in construction that it is almost impossible 

 to preserve it intact in a dry condition. This is the most southern record for the species. 



Distribution. South Pacific, oft' Fiji, in '210 fathoms ; close to the equator, in 2425 

 fathoms ; in abundance between Juan Fernandez and the coast of Chili, 2160 fathoms 

 (BRADY). North Pacific, five stations, 1875 to 2900 fathoms (CUSHMAN). 



(ROl'. SOC. EDIN. IKAN8., VOL. XLIX., HO'J.) 



