. Bulletin - United States National Museum. Science. 16 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. Soc. London, vol. 20, 1915, p. 679; Journ. Roy. Micr. Soc, 1916, p. 49; Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, p. 267.—Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 149.—Cushman, Publ. 291, Carnegie Inst. Washington, 1919, p. 39; Proc. U. S. Nat. Mus., vol. 56, 1919, p. 621; Bull. 100, U. S. Nat. Mus., vol. 4, 1921, p. 289; Proc. U. S. Nat. Mus., vol. 59, 1921, p. 55, pi. 12, fig. 6; Publ. 311, Carnegie Inst. Washington, 1922, p. 36, pi. 14, figs. 1, 2. Description.—Test composed of sev
. Bulletin - United States National Museum. Science. 16 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. Soc. London, vol. 20, 1915, p. 679; Journ. Roy. Micr. Soc, 1916, p. 49; Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, p. 267.—Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 149.—Cushman, Publ. 291, Carnegie Inst. Washington, 1919, p. 39; Proc. U. S. Nat. Mus., vol. 56, 1919, p. 621; Bull. 100, U. S. Nat. Mus., vol. 4, 1921, p. 289; Proc. U. S. Nat. Mus., vol. 59, 1921, p. 55, pi. 12, fig. 6; Publ. 311, Carnegie Inst. Washington, 1922, p. 36, pi. 14, figs. 1, 2. Description.—Test composed of several inflated chambers arranged in an elongate trochoid spire of about three volutions, each with three chambers; walls reticulate, with spines in pelagic specimens; aperture an arched opening at the umbilical border of the chamber, and in the later chambers this is supplemented by two or more nearly circular openings on the upper border of the chamber near its connection with the preceding chambers; color of the early chambers, sometimes all the chambers, pink. Length about mm.; diameter about mm. Distribution.—This w^as originally described by D'Orbigny from the West Indian region. In the Caribbean, the Gulf of Mexico, and in the path of the Gulf Stream this species is often very abundant. It has a very brightly colored test when well preserved and specimens are fairly fresh. It becomes less well developed in more northern bottom samples, and although its range extends to the western coast of Europe, it was always taken in the tow nets in the Tortugas region, which is on the border of the Gulf Stream. Outside the West Indian region the red color seems to be largely wanting and it may be that the species in its typical form is confined to the Atlantic. Pelagic specimens have a distinctly spinose test. Globigerina rubra—material examined. Cat. No. Coll. of- No. of speci- mens. 19446 1 19447 4 19448 9 19449 5 19450
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