88 DISCOVERY REPORTS 



narrower at its commencement than its predecessor, thus giving a distinctly serrate 

 appearance to the peripheral edge. With these exceptions all the specimens were very 

 true to type. 



163. Haplophragmoides scitulus (Brady) (F 94) (SG 112) (Plate X, figs. 20, 21). 

 Fifteen stations: 170, 175, 180, 181, 196, 199, 363; WS 386, 468, 472, 479, 484, 494A, 514, 517. 

 The typical form with slightly evolute test having an excavate umbilicus on each face 



is widely distributed in all areas, and at all depths down to 4344 m. at St. WS 468. It is 

 generally rare or very rare, but is not uncommon at Sts. 180, 181 and WS 479. The 

 "oval variety" referred to and figured in the South Georgia report (p. 78, pi. iii, figs. 

 11-12) generally occurs with it, but is much more widely distributed. Owing to dif- 

 ferences in its internal structure, the "oval variety" has been raised to generic rank 

 under the name Recurvoides contortus (No. 169). 



164. Haplophragmoides quadratus, sp.n. (Plate III, figs. 7, 8). 

 One station: WS 515. 



Test compressed, square in outline with rounded-off corners, exhibiting only four 

 completely involute chambers on each flattened face. Peripheral edge round but entire ; 

 sutures distinct, very slightly depressed. Aperture obscure, probably a fine slit on inner 

 edge of terminal chamber, but obstructed with mud. 



Examined as a transparent object, an inner convolution of small chambers, similarly 

 arranged, becomes visible. 



Constructed very neatly of fine sand and cement ; wall thin but firm and smooth, not 

 polished. 



Diameter 0-30 mm.; thickness o-i6 mm. 



Only a single specimen was found in 512 m. in the Bellingshausen Sea, but it is so 

 distinctive in structure that I have given it a name. It is isomorphic with the compressed 

 variety of Pullenia sphoeroides which occurs at the same and other stations, but is quad- 

 rate instead of circular in form. It bears also a certain resemblance to the four-chambered 

 specimens of Trochammina bradyi referred to under that species (No. 196), but the test 

 is differently constructed of sand instead of cement, and the two forms can hardly be 

 confused together. 



165. Haplophragmoides nitidus (Goes) (Plate III, figs. 3-6). 



Haplophragmium latidorsatum (pars) Goes {non Bornemann), 1894, ASF, p. 21, pi. v, figs. 121-3. 

 Haplophragmiiun nitidiim. Goes, 1896, DOA, p. 30, pi. iii, figs. 8-9. 

 Haplophragmoides nitidum, Cushman, 1918, etc., FAO, 1920, p. 44. 



Eight stations: 365, 369; WS 205, 403, 472, 502, 503, 552. 



This is a fairly distinctive species with a very wide distribution. Goes originally 

 (1894) gave it no name, but under his description of H. latidorsatum (= H. subglobosiis) 

 describes it as "var. minus, saepe umbilicatum, nitidum, suturis impressis, segmentis 

 turgidis visibilibus numero 4". The specimens figured were from the Skagerack, depth, 

 180 m. In 1896 he separated it as a species and described it as "smooth and glossy 

 usually narrow umbilicated; number of segments 4; colour brown, reddish or yellow; 



