ASTRORHIZIDAE 75 



Two very small microspheric specimens were found at St. WS 515 in the Bellings- 

 hausen Sea, 512 m. 



The distribution of this species is remarkable. Originally described in the ' Terra 

 Nova ' report from the North Island of New Zealand, where it is common, it was not 

 found by that expedition to the south in the Ross Sea, but turned up again in the 

 Falklands area, in South Georgia, and now in the Bellingshausen Sea. Wiesner did not 

 find it in the Antarctic of Kaiser Wilhelm's Land, but it was recorded as "typical" at 

 ' Gauss ' St. 29 (35° 53' S, 13° 9' E, ofl' the Cape of Good Hope) in 4970 m., and farther 

 east as "sandy" at 'Gauss' St. 39 (46° 47' S, 50° 37' E) in 2320 m. It has therefore 

 nearly encircled the globe. It may be present in the Weddell Sea (see p. 11). 



120. Hyperammina tubulosa, sp.n. (Plate II, fig. 21). 

 One station: WS 471. 



A broad tube of approximately equal diameter throughout, thin walled, slightly 

 curved, and exhibiting faint rings of growth. The aboral extremity is neatly rounded 

 off and closed, but has not the bulbous proloculus typical of the genus. It is composed 

 of fine mineral grains with excess of cement. The wall is smooth and slightly polished. 

 The aperture is large and round, occupying the whole width of the tube, the edge at the 

 extremity of the tube being bevelled off towards the opening. Colour dark grey. 

 Length 1-90 mm.; greatest breadth 0-32 mm. 



A single specimen only from 3762 m. at St. WS 471 in the Scotia Sea. I believe I have 

 found similar specimens in deep-water dredgings made by either the F.C. ' Goldseeker ' 

 or F.C. ' Helga ', off British coasts, but cannot at present verify the fact. 



121. Hyperammina subnodosa, Brady (SG 88). 

 Two stations: 167, 170. 



Large and frequent at St. 167 in the South Orkneys in a gathering made by nets 

 attached to trawl in 244-344 n^- ! o^i^Y ^ single broken specimen at St. 170 in dredged 

 sand. The rarity of the species compared with its frequency in South Georgia is note- 

 worthy, but may be due in some measure to the fact that few net-gatherings were made 

 in the Antarctic. Large species such as H. subnodosa, which are probably widely 

 separated in the surface mud, have little chance of being taken by a sounding tube. 



Genus Saccorhiza, Eimer and Fickert, 1899 



122. Saccorhiza ramosa (Brady) (F 56 a) (SG 89). 



Twenty-three stations: 190, 362, 373, 382, 383 ; WS 199, 393, 400, 403, 468, 471, 472, 474, 494A, 

 495, 509, 510, 512, 515, 517, 552, 553, 555. 



Generally distributed in all areas, often frequent, and common at two stations, Sts. 

 190 in the Palmer Archipelago (93-130 m.), and WS 517 in the BeUingshausen Sea 

 (2770 m.). Except in the Bellingshausen Sea, where the stations are generally under 

 700 m., and the exceptionally shallow record at St. 190, all the records are in deep water, 

 ranging down to 5029 m. At St. WS 471 in the Scotia Sea (3762 m.), where the species 

 was frequent, an exceptionally fine specimen with primordial chamber was found sessile 



