232 MESSRS. E. HERON-ALLEN AND A. EARLA.XD ON THE 



112. Spiroplecta fusca, Earland. 



Spiroplecta fusca, Earland, 1905, FBS. p. 204, pi. xii. figs. 1-3. 



„ Heron-Allen & Earland, 1908, etc., SB. 1909, p. 331. 



1 Station. 



One good specimen at Stn. 3, presenting the characteristic lobulate outline of the 

 species, but lighter in colour than the original type. 



Gaudryina, d'Orbigny. 



113. Gaudryina filiformis, Berthelin. 



Gaudryina filiformis, Berthelin, 1880, EAM. p. 25, pi. xxiv. (i.) fig. 8. 

 „ Brady, 1884, PC. p. 380, pi. xlvi. fig. 12. 



8 Stations. 



Neither widely distributed nor abundant. Numerous excellent specimens at several 

 Stns., notably Stn. 17. Two distinct forms are noticeable, one being much shorter and 

 broader than the other, possibly representing the inegalospheric and microspheric stages. 

 They are all grey in colour, the ferruginous tint being confined to the early part 

 of the test. 



Cushman (C. 1910, etc., FNP. 1911, p. 70, fig. Ill) has separated the specimens 

 figured by Brady from Berthelin's original type under the name G. psendo-jiliformis, 

 apparently on the ground that the texture of the shell in Brady's specimens and in 

 those dredged by the ' Albatross ' are smoothly arenaceous. This appears to be entirely 

 insufficient ; the character of the chambers is practically identical with that shown in 

 Berthelin's original figure, and the difference in the shell-texture of the 'Challenger ' 

 specimens with their increased j>roportion of cement is probably due to the greater depth 

 from which the specimens were obtained. 



The species has been adequately figured by Wright (W. 1880-81, SD. p. 180, pi. viii. 

 fig. 3 a-b) and by ourselves (H.-A. & E. 1913, CI. p. 57, pi. iv. figs. 7, 8). 



114. Gaudryina rudis, Wright. 



Gaudryina rudis, Wright, 1900, DBC. p. 53, pi. ii. fig. 1. 



„ „ Heron-Allen & Earland, 1913, CI. p. 58, pi. iii. figs. 14-17. 



14 Stations. 



Widely, but not universally, distributed, and, except at a few Stns., few in number 

 and small. Remarkably large individuals occurred at Stns. 16, 19, and 26. The species 

 is also remarkably abundant at Stn. 3. The species has only been recorded tit supra, 

 but we have found it in shore-gatherings and soundings all round the British coasts. 



Valvulina, d'Orbigny. 



115. Valvulina fusca (Williamson). 



Rotaliua fusca, Williamson, 1858, RFGB. p. 55, pi. v. figs. 114, 115. 

 Valvulina fusca, Brady, 1884, FC. p. 392, pi. xlix. figs. 13, 14. 



