430 DISCOVERY REPORTS 



385. Pulvinulina elegans (d'Orbigny). 



Rotalia (Turbinultna) elegans, d'Orbigny, 1826, TMC, p. 276, no. 54. 



Rotalia partschiana, d'Orbigny, 1846, FFV, p. 153, pi. vii, fig. 28-30 and pi. viii, figs. 1-3. 



Pulvinulina elegans, Brady, 1884, FC, p. 699, pi. cv, figs. 4-6. 



Epistomina elegans, Cushman, 1925, etc., LFR, iii, 1927, p. 182, pi. xxxi and xxxii. 



Eleven stations: 228, 230, 235, 236; WS 73, 76, 86, 90, 99, 408, 433. 



Large and perfectly typical specimens are numerous at 228, 230, 235, 236 and 

 WS 408, all beyond the Continental Shelf. From the remaining stations, all of which 

 except WS 99 are on the Shelf, only very small feeble specimens occur, which are 

 referred with some hesitation to this species. The Type is missing. 



386. Pulvinulina umbonata (Reuss) (Plate XV, figs. 16-18). 



Rotalina umbonata, Reuss, 1851, FSUB, p. 75, pi. v, figs. 35 a-c. 

 Pulvinulina umbonata, Hantken, 1875, CSS, p. 77, pi. ix, fig. 8. 

 Truncotulina tenera, Brady, 1884, FC, p. 665, pi. xcv, fig. 11. 

 Pulvinulina umbonata, Brady, 18S4, FC, p. 695, pi. cv, fig. 2 a-c. 

 Pulvinulina umbonata, Cushman, 1910, etc., FNP, 1915, p. 60, pi. xxvii, fig. 2. 



Twelve stations: 228, 230, 235, 236; WS 88, 90, 99, 215, 217, 408, 409, 433. 



Excellent specimens are found at all the stations, perhaps the best at WS 99. With 

 the exception of WS 88, 90, 215, 217, all the stations are beyond the Continental Shelf. 

 We had originally identified the majority of the specimens as Trinicotiilina tenera, Brady, 

 but after a further close examination and a comparison with Brady's own mounts of the 

 two species from adjacent localities oft" the west coast of Patagonia, we are unable to see 

 any material, much less specific, difference between the two forms, and consider that 

 Brady's species must lapse in favour of the earlier name of Reuss. Brady's specimens differ 

 only in the fact that T. tenera is thin-walled and hyaline compared with P. umbonata. 



387. Pulvinulina exigua, Brady. 



Pulvinulina exigua, Brady, 1884, FC, p. 696, pi. ciii, figs. 13, 14. 

 Pulvinulina exigua, Cushman, 1910, etc., FNP, 1915, p. 60, pi. xxiii, fig. 5. 



Twenty-three stations : 51, 53, 228, 230, 236; WS 76, 77, 79, 80, 83, 88, 89, 90, 92, 93, 95, 97, 98, 

 99. 109, 215, 217, 245. 



Widely distributed and very often abundant in the finer material. The best series of 

 specimens was obtained at WS 97, almost equally good at WS 76, 83, 92, 93 and 217. 



388. Pulvinulina patagonica (d'Orbigny) (Plate XV, figs. 20-22). 



Rotalina patagonica, d'Orbigny, 1839, FAM, p. 36, pi. ii, figs. 6-8. 

 Eponides patagonica, Cushman, 1927, FWCA, p. 162, pi. v, figs, i, 2. 



One station: WS 221. 



A single specimen only. D'Orbigny records his species from the coast of Patagonia 

 and from the sounding off Cape Horn, but does not refer to its presence in the Falkland 

 Islands. His specific name has been used by Brady for a very different form {vide 

 Globorotalia sdttila (Brady), No. 375). 



