162 



FORAMINIFERA OF THE CRAG. 



General Characters. — Typically spiral, short or elongate ; trochoid or sub- 

 cylindrical ; last convolution proportionally large ; segments numerous, small at 

 first, septal plane of each segment generally directed inwards towards the central 

 umbilical axis, and rapidly increasing in size ; aperture a simple loop-like slit, 

 oblong; or arcuate in the septal face, and directed obliquely or vertically down- 

 wards, but sometimes nearly round ; one of its lips passing behind the other at 

 its umbilical margin. The chambers in the whorls may be many or few, inflated 

 or compact ; the convolution may be either produced or depressed, thus forming 

 either a long or a short shell. The Buliminse with arenaceous tests have been 

 grouped under the name Ataxophragmium by von Reuss, ' Sitzungsb. Akad. Wiss. 

 Wien,' vol. xliv, 1861, p. 383. See also Carpenter's ' Intro d. Study Foram.,' Ray 

 Soc, 1862, pp. 194—197. 



1. Bulimina elegans, d'Orbigny, 1826. Woodcut, fig. 17. 

 Part I, 1866, Appendix II, Table, No. 66. 



Bulimina elegans, d'Orb., 1826. Ann. Sci. Nat., vol. vii, p. 270, No. 10, 



Modele No. 9. 

 [ — — ] Costa, 1838 (?). Fauna R. Nap., Foram., pi. iii, fig. 6 a, 



a, b, c (not described). 

 J. and P., 1860. Quart. Journ. Geol. Soc, vol. xvi, p. 302, 



Table, No. 55. 

 P., «/., and B., 1865. Ann. Mag. Nat. Hist., ser. 3, vol. xvi, 



p. 20, pi. ii, fig. 64. 

 /., P., and B., 1866. Monogr. Foram. Crag, Appendix II, 

 Table, No. 66. (The specimen from 

 Chillesford here alluded to has been 

 lost sight of.) 

 Brady, 1884. Report ' Challenger,' p. 398, pi. 1, figs. 1—4. 

 Gtimbel, 1885. Geol. Bayern., vol. i, pt. 2, pp. 421, 422, 

 fig. 266, 19. 



— Chapman, 1892. Quart. Journ. Geol. Soc, vol. xlviii, pp. 514, 



516, 518, pi. xv, fig. 9. 



— Efjrjer, 1893. Abhandl. Bayer. Akad. Wiss., vol. xviii, part 2, 



pp. 284 and 446, pi. viii, figs. 66 and 67. 



Fig. 17. — Bulimina elegans, d'Orb. x 60. Specimen from 

 the Coralline Crag at Broom Hill, zone d. 



