274 Transactions of the Society. 



k. bayer. Akad. Wiss., CI. IT. vol. xviii. p. 285, pi. viii. fig. 63. 

 B. pupoides (d'Orb.) Egger, 1895, Jahresbericht xvi. Naturhist. Ver. 

 Passau, p. 14, pi. iv. figs. 6-8. B. pupoides (d'Orb.) Flint, 1899, 

 Kept. U.S. Nat. Mus. for 1897, p. 290, pi. xxxvii. fig. 3. B. pupoides 

 (d'Orb.) Egger. 1899, Abbandl. k. bayer. Akad. Wiss., Ci. II. 

 vol. xxi. p. 49, pi. xv. figs. 1, 2. B. pupoides (d'Orb.) Wright, 1909, 

 Geol. Mag., dec. 4, vol. vii. p. 100, pi. v. fig. 3. 



Bulimina a finis d'Orbigny. 



Bulimina affinis d'Orbigny, 1S39, Foram. Cuba, p. 109, pi. ii. 

 figs. 25, 26. B. affinis (d'Orb.) Sherborn and Chapman, 1886, 

 Journ. R. Micr. Soc, vol. vi. p. 743, pi. xvi. fig. 1. B. affinis (d'Orb.) 

 Rzehak, 1886, Verb. Nat, Ver. Briinn, vol. xxiv. p. 80, pi. i. fig. 2. 

 B. affinis (d'Orb.) Burrows, Sherborn, and Bailey. 1890, Journ. 

 11. Micr. Soc, p. 554, pi. viii. fig. 23. B. affinis (d'Orb.) Chapman, 



1892, Journ. R. Micr. Soc, p. 756, pi. xii. fig. 10. B. affinis (d'Orb.) 

 Woodward and Thomas, 1893, vol. iii. Final Rept. Geol. and Nat. 

 Hist. Survey of Minnesota, p. 32, pi. C, fig. 19. B. affinis (d'Orb.) 

 Egger, 1893, Abhandl. k. bayer. Akad. Wiss., CI. II. vol. xviii. 

 p. 285, pi. viii. fig. 71. B. affinis (d'Orb.) Egger, 1895, Jahresbe- 

 richt xvi. Naturhist. Ver. Passau, p. 14, pi. iv. figs. 4, 5. B. affinis 

 (d'Orb.) Flint, 1899, Rept. U.S. Nat. Mus. for 1897, p. 290, 

 pi. xxxvii. fig. 2. B. ovulum (lleuss) Egger, 1899, Abhandl. k. bayer. 

 Akad. Wiss., CI. II. vol. xxi. p. 50, pi. xv. fig. 46. 



Bulimina elegans d'Orbigny, plate II. fig. 1. 



Bulimina elegans d'Orbigny, 1S26, Ann. Sci. Nat., vol. vii. p. 270, 

 No. 10 ; Modele, No. 9. B. elegans (d'Orb.) Parker, Jones, and 

 Brady, 1865, Ann. and Mag. Nat. Hist., ser. 3, vol. xvi. p. 20, pi. ii. 

 fig. 64. B. elegans (d'Orb.) Chapman, 18^2, Quart. Journ. Geol. 

 Soc, vol. xlviii. p. 516, pi. xv. fig. 9. B. elegans (d'Orb.) Egger, 



1893, Abhandl. k. bayer. Akad. Wiss., CI. II. vol. xviii. p. 284, pi. viii. 

 figs. 66, 67. B. elegans (d'Orb.) Jones, 1895, Palaeont. Soc, p. 162, 

 fig. 17. B. elegans (d'Orb.) Egger, 1895, Jahresbericht xvi. Naturhist. 

 Ver. Passau, p. 16, pi. iii. fig. 9. B. elegans (d'Orb.) Flint, 1899, 

 Rept. U.S. Nat. Mus. for 1897, p. 291, pi. xxxvi. fig. 3. B. elegans 

 (d'Orb.) Egger, 1899, Abhandl. k. bayer. Akad. Wiss., CI. II. 

 vol. xxi. p. 50, pi. xv. fig. 44. 



Of this group the central form is B. elegans, which is by far the 

 most important in numbers as well as in distinctive characters. The 

 aperture is always large and curiously contorted, suggesting a stage 

 in the evolution of a complicated double aperture found in some allied 

 species, a description of which will be given in due course. The 

 B. coprolithoides of Andreae * has. a somewhat similar aperture, and 

 closely resembles this form in other respects. B. pupoides and 



* Abhandl. Geol. Special-Karfe Elsass-Lotli., vol. ii. Heft 3, 1S84, p. 305, pi. vi. 

 fig. 4. 



