TEXTULARIIDAE 121 



244. Gaudryina minuta, sp.n. (Plate V, figs. 45, 46). 

 Three stations: 360; WS 496, 497. 



Test minute, consisting of a triserial portion nearly circular in section and occupying 

 about half the length of the test, followed by a textularian series of several pairs of 

 inflated chambers, steadily increasing in size and thickness, thus retaining the circular 

 section. Early sutures flush, later ones depressed. Aperture a normal textularian slit on 

 inner margin of final chamber. Constructed of fine mineral fragments without much 

 cement; surface smooth, colour grey. 



Length 0-25 mm.; maximum breadth and thickness o-io mm. 



This very small species has all the characteristic features of the genus, and appears to 

 be quite distinctive. Two specimens were found at St. WS 497 (534 m.), another at 

 St. WS 496 (631 m.), both in the Bellingshausen Sea, and a single specimen at St. 360 in 

 the Scotia Sea (3264 m.). Owing to its minute size and colour it may have been over- 

 looked elsewhere. 



245. Gaudryina ferruginea, Heron-Allen and Earland (Plate V, figs. 41-44). 

 Gaudryina ferruginea, Heron-Allen and Earland, 1922, TN, p. 123, pi. iv, figs. 13-15. 



Three stations: 360, 383 ; WS 516. 



Frequent at St. 360 in the Scotia Sea, 3264 m., otherwise extremely rare; a single 

 specimen only at St. WS 516 in the Bellingshausen Sea, 261 1 m., and several at St. 383 

 in the Drake Strait, 3744 m. 



The species was originally recorded from 70 fathoms off the North Cape, New 

 Zealand, where it is not uncommon, and its occurrence at such a distance, without 

 intermediate records, is noteworthy. The Antarctic specimens agree in size and other 

 respects with the types, the only difference being the use of finer sand particles in con- 

 struction, giving a neater appearance to the test. This might be expected in deeper water. 

 The characteristic deep ferruginous colour is constant in all localities. The size of the 

 Discovery specimens agrees very well with those found by the 'Terra Nova'; about 

 0-35 mm. long, 0-15 mm. broad. 



246. Gaudryina pauperata, sp.n. (Plate V, figs. 47-49). 

 Two stations: 169, 360. 



Test minute, consisting of 2-3 sets of chambers arranged triserially, followed by 3-4 

 pairs of biserial chambers increasing rather quickly in size. Apex rounded; sutures de- 

 pressed; chambers thick and rather infiated, giving a lobulate margin. Aperture 

 normally textularian on the inner edge of final chamber. Walls thin and fragile, con- 

 structed of sand grains, rather coarse for the size of the organism, with a little grey 

 cement. Colour dark grey. 



Length 0-23 mm.; width 0-12 mm.; thickness o-io mm. 



Very rare at both stations in the Scotia Sea, 2514-3264 m. ; but the test is very fragile, 

 and owing to its size and colour it would easily be overlooked. 



nx 16 



