62 DISCOVERY REPORTS 



the exterior being rough and irregular. Such specimens are usually small, but at St. 42, 

 WS 353, 428 and 523 they are very much larger than average size. The last three 

 stations are in deep water between 1697 and 4041 m. A neatly constructed variety, in 

 which the sand grains are laid so as to form a smooth exterior, occurs in company with 

 the rough form at Sts. 144 and 151, and by itself at WS 33 and 349. At the former 

 station, the sand grains in two of the three specimens are too small to be distinguishable. 

 A very abnormal specimen was noted at WS 522, nearly globular and ferruginous, 

 with a large slightly projecting oral extremity. It may possibly be a proloculum of 

 Reophax 7wdulosiis, but this species was not recorded at the station. 



63. Proteonina decorata, sp.n. (Plate I, figs. 28, 29). 

 Three stations: WS 28, 32, 41. 



Test free, monothalamous, pyriform or fusiform, devoid of a produced neck; the 

 aperture, which is small, being situated at the narrower extremity of the test. Wall 

 rather thick, rough externally and internally, constructed of large irregular sand grains, 

 embedded in very fine sand and cement, the cement predominating, so that the sand 

 grains appear to be scattered over the surface like plums in a cake. Length o-6 mm., 

 breadth 0-30 mm. 



This is rather a striking form in appearance, owing to the marked contrast between 

 the dark sand grains and the white cement which forms the bulk of the test. 



It is rare at all the stations, the best specimens at WS 28. 



64. Proteonina tubulata (Rhumbler) (Plate I, figs. 30, 31). 



Saccammina tubulata, Rhumbler, n.sp., Wiesner, 193 1, FDSE, p. 82, pi. xxiii. Stereo-fig. a. 

 Six stations: 45, 136; WS 47, 351, 353, 429. 



Test more or less globular and roughly constructed of comparatively large mineral 

 grains embedded in cement. Exterior rough owing to the projecting edges of the sand 

 grains. Aperture furnished with a projecting neck built of very minute sand grains 

 neatly cemented together. Owing to its fragility the neck is seldom, if ever, perfect, but 

 at WS 351 its length is about three-quarters that of the body of the test. 



Length of test without neck o-3-o-4 mm., breadth about the same; length of neck up 

 to 0-2 mm., width 0-02 mm. 



This is a very distinctive form owing to the contrast between the roughly finished 

 shell and the delicately constructed neck. Though very rare, seldom more than a single 

 specimen at a station, its distribution is sufficiently wide to justify specific distinction. 

 In depth it ranges between 160 and 2549 m. It has recently been described and 

 figured by Wiesner {nt supra) from two stations of the German South Polar Expedition, 

 depths 385 m. and 3410 m. under what is apparently a MS. name of Rhumbler 's. I 

 cannot agree with Rhumbler 's attribution of the species to Saccammina. The long neck, 

 in itself, seems to forbid such an association. 



