Citation: Globigerina digitata Brady 1879Rank: speciesType specimens: Not given. [Brady, 1884, Rept. Voy. Challenger, Zoo!., vol. 9, pl. 80, figs. 6-10, bottom specimens, X 50; pl. 82, figs. 6, 7, large bottom specimens, X 50]: Pl. 80, figs. 6, 8, superior aspect; 7, 9, inferior aspects; 10, peripheral aspect. Type age (chronostrat): RecentType locality: Not given. [Figured specimens; "Challenger" Sta. 276, lat. 13°28' S., long. 149°30' W., in the South Pacific Ocean, in 2350 fathoms (pl. 80, figs. 6, 7, 9); "Challenger" Sta. 338, lat. 21°15'S., long. 14°02' W., in the South Atlantic Ocean, in 1990 fathoms (pl. 80, figs. 8, 10); and "Challenger" Sta. 191 A, lat. 5°26' S., long. 133°19' E., off the Ki [Kai] Islands, in the Eastern Archipelago (Indonesia], in 580 fathoms (pl. 82, figs. 6, 7); fide Nuttall, 1927, Ann. Mag. Nat. Hist., ser. 9, vol. 19, p. 233.] Type repository: Depository not given. [Specimens illustrated in pl. 80, figs. 6, 7, 9, and pl. 82, figs. 6, 7, deposited in the collections of the Zoological Department, British Museum (Natural History), London, Reg. no. 22.214.171.1245 (pl. 80, figs. 6, 7, 9) and Reg. no. 126.96.36.1996 (pl. 82, figs. 6, 7); other figured specimens (pl. 80, figs. 8, 10) deposited in the collections of the Zoological Museum, Cambridge, England; fide Nuttall, 1927, loc. cit.]
Original Description [Brady, 1884, op. cit., p. 599]: "Test spiral, more or less rotaliform, consisting of from two to three convolutions; earlier chambers small and regular, later segments, especially the final one, elongated at their free margins and spreading radially; aperture usually large and furnished with a thickened lip or border. Diameter, 1/65 inch to 112o inch (0.4 to 1.27 mm) or even more." Extra details from original publication "A very singular modification of the type, and one that has not hitherto been described. The earlier segments are commonly regular and trochoid, but the later ones are much elongated and spreading. In some specimens, generally of small size, the final segment only is extended, like the index finger of the hand, but in others, two, three or more chambers radiate in palmate fashion. The apertures of the chambers have thickened or lipped borders. lt is a rare form, and usually of small size, 1/50 inch (0.5 mm), but in one dredging specimens have been met with measuring 1/17 inch (1.5 mm) in diameter."
Banner, F. T. & Blow, W. H. (1959). The classification and stratigraphical distribution of the Globigerinaceae. Palaeontology. 2(1): 1-27. gsVO
Brady, H. B. (1879). Notes on some of the reticularian Rhizopoda of the "Challenger" expedition. I.- On new or little known arenaceous types. Quarterly Journal of Microscopical Science. 19: 20-63. gs
Globigerina digitata compiled by the pforams@mikrotax project teamviewed: 22-3-2023