FORAMINIFERA OF THE ATLANTIC OCEAN. 

 Hyperammina elongate — material examined. 



75 



HYPERAMMINA FRIABILIS H. B. Brady. 



Plate 29, figs. 1-3. 



Hyperammina elongata H. B. Brady (part), Ann. Mag. Nat. Hist., ser. 5, vol. 1, 

 1878, p. 433; Quart. Journ. Micr. Sci., vol. 19, 1879, p. 32. 



Hyperammina friabilis H. B. Brady, Rep. Voy. Challenger, Zoolog}', vol. 9, 1884, 

 p. 258, pi. 23, figs. 1-3, 5, 6.— Goes, Kcingl. Svenek. Vet. Akad. Handl., 

 vol. 25, No. 9, 189-1, p. 17, pi. 4, fig. 59; Bull. Mua. Comp. Zo61., 

 vol. 29, 1896, p. 22.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 269, pi. 

 10, fig. 1.— Rhumbler, Arch. Prot., vol. 3, 1903, p. 258, figs. 99fl, h (in text).— 

 CusHMAN, Bull. 71, U. S. Nat. Mus. , pt. 1 , 1910, p. 62, fig. 76 (in text) .— Pearcey, 

 Trans. Roy. Soc. Edinburgh, vol. 49, 1914, p. 1004. — IIeron-Allen and 

 Earland, Trans, Linn. Soc. London, vol. 11, pt. 13, 1916, p. 220. 



Description. — Test elongate, subcylmdrical, often somewhat taper- 

 ing toward the aportural end, straight or iiearl^y so, composed of a 

 rather large globular proloculum and elongate (;yiijidrical or slightly 

 tapering second chamber slightly less in diameter than the proloc- 

 ulum; wall thick, loosely cemented especially on the exterior, 

 rough, composed usually of fine sand, sometimes mixed with coarse 

 sand particles, interior commojily smoother, with a yellowish- 

 brown cement: aperture circular at the distal end of the second 

 chamber. 



Diameter, 2 mm.; lengtli, up to 15 mm. 



Distribution. — From tlio available records this is a widely dis- 

 tributed species, being recorded from about the British Isles and 



