34 DISCOVERY REPORTS 



bears a general resemblance to H. weddellensis but differs in the number of chambers to 

 the convolution, and is not so coarsely constructed, so far as can be judged by his figure. 

 H. tmbilicatum is reported as occurring "in abundance" at St. 420, but nowhere else. 

 In the absence of his types, and of material from St. 420, I have not associated his 

 species with the widely distributed form, but further research may prove the identity 

 of the two species and reduce H. weddellensis to a synonym of H. iimbilicatus. Altern- 

 atively Pearcey's species may prove to be the microspheric form of H. weddellensis (his 

 figure suggests microspheric growth), which would also give his name priority. 



67. Haplophragmoides sphaeriloculus, Cushman (F 93) (SG iii) (A 161) (Plate I, 

 figs. 17, 18). 



Eight stations: 303, 312, 313, 406, 417, 422, 428, 438. 



Large specimens are not uncommon at St. 417, and single large specimens were also 

 found at Sts. 312 (the only example), and 313 (species rare). Elsewhere all specimens 

 were small; frequent at Sts. 303 and 428 ; rare or very rare at the other stations. 



68. Haplophragmoides truUissatus (Brady) (A 162). 

 Six stations: 226, 282, 290, 300, 301, 313. 



Rare at Sts. 301, 313, where both megalospheric and microspheric individuals were 

 found. Very rare elsewhere. 



Pearcey: 300, 337 a, 416, 420 "rare". (See also No. 102.) 



69. Haplophragmoides scitulus (Brady) (F 94) (SG 112) (A 163). 

 Four stations: 282, 416, 417, 422. 



A single specimen at each station ; that at St. 422 was built into the wall of Psammo- 

 sphaera. 



Pearcey: 291, 313, 416, 417 "rare". His records probably included the form since 

 separated as Recurvoides contortus (No. 74). 



70. Haplophragmoides nitidus (Goes) (A 165). 

 Two stations: 313, 417. 



Two specimens at St. 313 ; frequent and typical at St. 417. 



71. Haplophragmoides subglobosus (G. O. Sars) (F 95) (SG 113) (A 166). 



Twenty-four stations: 226, 280, 282, 286, 290, 295, 300, 301, 303, 309, 312, 313, 387, 391, 394, 

 406, 416, 417, 418, 421, 422, 428, 432A, 447. 



Recorded from every station within the convergence which was examined except 

 Sts. 338 and 438, this is by far the most common and widely distributed species in 

 the Weddell Sea, and is more or less common everywhere. 



Two distinct forms occur, nearly always together, though often in varying proportions. 

 One is very roughly built of large sand grains which project from the test ; the other is 

 smoothly constructed of smaller grains with more cement, and the exterior is neatly 

 finished. The coarse form is generally larger than the smooth. At Sts. 406 and 418 only 

 the smooth form occurs, and reaches the same size as the coarse form at other stations. 



