FORAMINIFERA OF THE ATLANTIC OCEAN 47 



that more than two chambers make a coil. With this change in 

 structure is developed a strongly cribrate aperture. 



HAUERINA BRADYI Cushman 



Plate 10, Figures 4-9 



Hauerina compressa H. B. Brady (not H. cornpressa d'Orbigny), Rep. Voy. 

 Challenger, vol. 9, 1884, p. 190, pi. 11, figs. 12, 13. 



Hauerina bradiji Cushman, Bull. 71, U. S. Nat. Mas., pt. 6, 1917, p. 62, pi. 

 23, fig. 2; Proc. U. S. Nat. Mus., vol. 59, 1921, p. 72; Publ. 311, Carnegie 

 Instit. Washington, 1922, p. 71; Publ. 344, 1926, p. 82. 



Test much compressed, the very earliest ones milioline, later ones 

 becoming spiroloculine, and finally, in the last-formed coil, more than 

 two chambers appear, usually three making up a complete coil; wall 

 very finely striate-reticulate; periphery rounded or subcarinate; aper- 

 ture a sieve-plate the entire height of the chamber, curved, with 

 numerous pores. 



Diameter, 1 mm.; thickness, 0.15 mm. 



This species is now know from the Tortugas, Jamaica, and Porto 

 Rico, and so is probably widely distributed in the West Indian region. 

 The largest specimens are from Porto Rico. In the Indo-Pacific the 

 species is also widely distributed. 



HAUERINA ORNATISSIMA (Karrer) 



Plate 10, Figures 10-12 



Quinqueloculina ornatissima Karrer, Sitz. Akad. Wiss. Wien, vol. 58, 1868, 



p. 151, pi. 3, fig. 2. 

 Hauerina ornatissima H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 192, pi. 7, figs. 15-22.— MiLLETT, Journ. Roy. Micr. Soc, 1898, p. 610. — 

 Chapman, Journ. Linn. Soc. Zool., vol. 28, 1900, p. 178, p. 207 (list), p. 

 399 (list).— Fornasini, Mem. Accad. Sci. Istit. Bologna, ser. 5, vol. 10, 

 1902, p. 27.— Dakin, Rep. Ceylon Pearl Oyster Fish., vol. 5, 1906, p. 

 231.— Rhumbler, Zool. Jahrb., Abt. Syst., vol. 24, 1906, p. 53.— Heron- 

 Allen and Earland, Trans. Zool. Soc. London, vol. 20, 1915, p. 590.— 

 Cushman, Bull. 71, U. S. Nat. Mus., pt. 6, 1917, p. 63, pi. 23, figs. 1, 5; 

 LI. S. Geol. Survey, Bull. 676, 1918, p. 26, pi. 6, fig. 5; Bull. 100, U. S. 

 Nat. Mus., vol. 4, 1921, p. 452; Publ. 311, Carnegie Instit. Washington, 

 1922 p. 72; Publ. 342, 1924, p. 67, pi. 24, figs. 7-9.— Heron-Allen and 

 „ Earland, Journ. Linn. Soc. Zool., vol. 35, 1924, p. 609.— Hanzawa, 



j Jap. Journ. Geol. Pal., vol. 4, 1925 (1926), p. 37 (table).— Cushman, 



^ Publ. 344, Carnegie Instit. Washington, 1926, p. 82. 



Test compressed, early chambers miliohne, later ones either embrac- 

 ing and extending in to the center to cover the previously formed 

 chambers or becoming elongate and more or less encircling the periph- 

 ery; surface ornamented by strong transverse or radial ridges or 

 crenulations crossed by numerous fine longitudinal striae; aperture 

 consisting of numerous small pores in several linear series or scattered, 

 the sieve plate thus formed extending the full height of the chamber. 

 Diameter up to 1.5 mm. 



