596 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56 



Subfamily Hyperammininae. 



Genus HYPERAMMINA H. B. Brady, 1878. 



HYPERAMMINA LAEVIGATA J. Wright. 



Hyperammina elongata H^ B. Brady (part), Rep. Voj'. Challenger, Zoology, vol. 



9, 1884, p. 257, pi. 23, figs. 9, 10 (not 3, 7, 8). 

 Hyperammina elongata H. B. Brady, var. laevigata J. Wright, Proc. Roy. Irish 



Acad., ser. 3, vol. 1, 1891, p. 466, pi. 20, fig. 1. 

 Hyperammina laevigata Cushman, Bull. 104, U. S. Nat. Mua., pt. 1, 1918, p. 77, 



pi. 29, figs. 5, 6. 



Two specimens of this species, showing the proloculum, and two 

 others showing simply the tubular portion, are shown on the slides. 



HYPERAMMINA MESTAYEEI, new species. 



Plate 74, fig. 3. 



Description. — Test elongate, cylindrical, arcuate, varying little in 

 diameter throughout its length; initial portion hardly, if at all, en- 

 larged; apertural end contracted to form a circular opening; wall 

 thick, composed of very short fragments of sponge spicules and a few 

 quartz grains; the fragments of spicules are variously crossed, the 

 free ends pointing backward ; color light grayish brown. 



Diameter 1.25 mm.; length up to 16 mm. 



There are four specimens of this form, which is apparently micro- 

 spheric, in which the proloculum is small and the length maximum. 

 There are three other specimens which agree with these in all points 

 of structure and in which the initial end is considerably greater, its 

 diameter being 2 mm. or more, but gradually tapers toward the aper- 

 tural end, and the longest of the three specimens is 5 mm in length. 

 These apparently represent the megalospheric form of the same 

 species. It is evidently related to Hyperammina friaUlis H. B. 

 Brady. 



Type.— Cat. No. 14741, U.S.N.M. 



HYPERAMMINA SUBNODOSA H. B. Brady (?). 



Hyperammina suhnodosa H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 259, pi. 23, figs. 11-14.— Cushman, Bull. 71, U. S. Nat. Mug., pt. 1, 

 1910, p. 63, fig. 80 (in text). 



There are three specimens of large size, the largest being 10 mm. in 

 length and nearly 2.5 mm. in breadth. These have a coarse rough 

 wall, composed of sand and sponge spicules and are constricted at 

 intervals. The apertural end of the best preserved specimen has the 

 opening covered in by sponge spicules, leaving small openings be- 

 tween. The form in general is tapering and they may represent this 

 species, although they also resemble H.fiiaUlis H. B. Brady. 



