26 DISCOVERY REPORTS 



Genus Psammosphaera, F. E. Schulze, 1875 



22. Psammosphaera fusca, Schulze (F 60) (SG 56) (A 79). 



Nineteen stations: 226, 280, 282, 286, 290, 295, 301, 303, 309, 312, 313, 338, 416, 417, 418, 422, 

 428, 432A, 447. 



Universally distributed but uncommon at most stations. Frequent in the soundings 

 from Sts. 290, 303 and 312 and abundant in the trawl washings from Sts. 313, 417. 

 As usual the species exhibits great variation. The most generally distributed is the 

 roughly constructed form figured in F (pi. viii, figs. 3, 4), which attains a large size in the 

 trawl washings. The typical sphere of Schulze, in which the sand grains are of approxi- 

 mately equal size, is comparatively rare, but represented the species at Sts. 286, 338, 

 and was observed in moderate numbers with the rough type at Sts. 313, 417, 422. 

 Sessile and double specimens were frequent in the trawl washings, and were observed 

 at several other stations. 



Pearcey: 286, 313, 337A, 342, 416, 417, 418, 420 "larger and more abundant on 

 glacial deposits than in the Globigerina oozes" — I agree. 



23. Psammosphaera parva, Flint (SG 57) (A 81). 

 Two stations : 406, 422. 



A single specimen at each station. 



Genus Saccammina, M. Sars, 1868 



24. Saccammina sphaerica, M. Sars (SG 60) (A 83). 

 One station: 417. 



Small roughly constructed specimens, without produced neck and having merely a 

 simple aperture, are not uncommon in the trawl washings from St. 417. They are not 

 easily distinguishable from Psommosphaera fusca except by their larger size. This may 

 have caused them to be overlooked at other stations. 



In a small tube of various specimens picked out from the trawl on the ship were a few 

 gigantic individuals, mostly typical, of smooth construction and with produced neck. 

 In the same tube were others of similar rough construction to those referred to above. 



Pearcey: 291, 301, 313, 417, 420 " in considerable numbers, of large size and typical ". 



Genus Proteonina, Williamson, 1858 



25. Proteonina difflugiformis (Brady) (F 61) (SG 62) (A 85). 

 Nine stations: 226, 286, 290, 295, 301, 303, 312, 417, 428. 



Common at St. 303, rare or very rare elsewhere. Except at St. 312, where two large 

 coarsely constructed specimens were found which might be primordials oi Reophax sp., 

 all the examples are of a small, neatly constructed, flask-shaped form. 



Pearcey: 300, 337 a, 338, 342, 387, 447 "it was not found at any of the stations south 

 of the circle". 



