LITUOLIDAE 79 



Although less common in the Discovery material, some of the specimens are in 

 excellent condition and show the slightly inflated primordial chamber and the apertural 

 end. 



Wiesner (W. 193 1, FDSE, p. 100, pi. xiii, fig. 158, pi. xiv, figs. 159, 160) records and 

 figures under the name of B. labyrinthica specimens from Kaiser Wilhelm's Land, which 

 are neither B. labyrinthica nor B. goesii. I think in spite of their size, over i inch in one 

 instance, they are Jaadella acuta, resembling the specimens figured in the Terra Nova 

 report (H.-A. and E. 1922, TN, p. 85, pi. i, figs. 19, 20). Since the publication of that 

 report I have seen similar specimens collected from shallow water on the Austrahan 

 coast by Mr W. J. Parr, F.R.M.S., of Melbourne, and have observed the same terminal 

 aggregations of sand in British specimens which were otherwise typical J. acuta. The 

 curious form figured and described by Chapman under the name Botellina radiciformis 

 (C. 1924, FSA, p. 9, pi. i, fig. 3) is very similar, and possibly a Jactdella. 



Family LITUOLIDAE 



Sub-family LITUOLINAE 



Genus Reophax, Montfort, 1808 



133. Reophax scorpiurus, Montfort (F 82) (SG 95). 



Seventy stations : 164, 169, 170, 171, 175, 177, 180-2, 186, 191, 194-6, 202-4, 360, 362, 363, 365, 

 369> 373. 377; 62°57'S, 60° 20' 30" W; 64° 56' S, 64°43'W; WS 199, 201, 203, 204, 377, 382, 

 383, 386, 387, 391, 393, 399, 403, 468, 471, 472, 474-6, 480, 482, 484-90, 493, 494A, 494B, 496, 

 497, 507B, 509-17, 553. 



The records are spread over all the areas within the Antarctic convergence line, and 

 include all depths down to 4259 m. at St. WS 201 in the Scotia Sea, but curiously 

 enough the species was represented only by single specimens at Sts. WS 403 and 468 

 among the deep-water stations in the Drake Strait and Scotia Sea. St. WS 468 is out- 

 side the Antarctic convergence line. 



There is great variety in the comparative length and breadth of the test at different 

 stations, but the commonest and most widely distributed form is a slender many- 

 chambered test, like de Montfort 's original figure. This is very common at Sts. 180 and 

 WS 515, common at Sts. 170, 177, WS 497 and 509 and frequent at Sts. 175, WS 386, 

 399, 471, 494 A and 496. A very rough form occurs at many stations, usually constructed 

 of black volcanic sand and scoriae; such forms are common at Sts. 194, 203 and 363. 

 At St. WS 403 in the Scotia Sea (3721 m.) the species is represented by a single small 

 specimen built up of the tests of other Foraminifera. This variation has been separated 

 by Cushman specifically as R. agglutinatus (C. 1918, etc., FAO, 1920, p. 9, pi. ii, figs. 

 4, 5) and by Wiesner as R. scorpiurus var. testacea (W. 193 1, FDSE, p. 89, pi. viii, fig. 

 100, pi. ix, fig. loi). 



134. Reophax curtus, Cushman. 



Reophax scorpiurus {pars). Goes {71071 Montfort), 1894, ASF, p. 24, pi. v, figs. 160-3. 

 Reophax curtus, Cushman, 1918, etc., FAO, 1920, p. 8, pi. ii, figs. 2, 3. 



Eleven stations: 175, 186, 386; WS 474, 482, 485, 498, 502, 505, 507 a, 514. 



