DENTALINA PAUPERATA. 225 



variable shell; and it scarcely appears worth while to enlarge the synonymy. 

 Many plates in the works of d'Orbigny, Reuss, Schlicht, Terquem, Neugeboren, 

 Goes, Dervieux, Egger, Beissel, and others, contain legions of named specimens 

 showing modifications of this simple type. 



As some of the later illustrations of Dentalina pauperata itself, the following 

 may be mentioned. 



Dentalina communis (part), J., P., and B., 1866. Mooogr. Foram. Crag, 



p. 59, pi. i, figs. 13—18, 20. 



— PAUPEBATA, "Brady, 1867. Proceed. Somerset Arch. N. H. Soc, vol. 



xiii, p. 224, pi. i, fig. 14. 



— — JSa«i!/<:e«, 1876 (1881). Magyar kir. foldt. int. evkonyve, 



p. 26, pi. iii, fig. 6; Mitth. 

 Jahrb. Ungar. geol. Anstalt, 

 vol. iv, p. 31, pi. iii, fig. 6. 



— — Blake, 1876. Yorkshire Lias, p. 458, pi. xviii, fig. 23. 



— — Terricji, 1883. Atti Accad. Pont. Nuovi Lincei, vol. xxxv, 



p. 178, pi. ii, fig. 14. 

 NoDOSABiA (Dentalina) paupeeata, Brady, 1884. Eeport ' Challenger,' p. 500, 



cuts, figs. 14 a, h, c. 

 Dentalina patpeeata, Sherborn and Chapman, 1886. Journ. E. Micr. Soc, 



ser. 2, vol. vi, p. 750, pi. xv, fig. 9. 

 NoDOSAEiA ANNFLATA, Fomasini, 1889. Foram. Mioc. S. Rufillo, pi. i, figs. 10 — 13. 

 Dentalina inceassata, Beissel (Hohapfel), 1891. Abhandl. k. Preuss. G-eol. 



Landesanst., n. s., part 3, p. 35, pi. vii, figs. 

 10—13. 

 NoDOSAEiA Paeons, Dervieux, 1894. Boll. Soc. Geol. Ital., vol. xii, fasc. 4, p. 611, 



pi. V, figs. 36, 37. 



— PAUPEEATA, Idem, 1894. Ibid., p. 612, pi. v, fig. 38. 



— — var. ELONGATA, Idem, 1894. Ibid., fig. 39. 



— Cameeani, Idem, 1894. Ibid., figs. 40, 41. 



— GLOBULOSA, Idem, 1894. Ibid., p. 614, pi. v, fig. 44. 



— APPEOXiMATA, Idem, 1894. Ibid., figs. 45, 46. 



— PAUPEBATA, Goes, 1894. K. Svensk. Vet.-Akad. Handl., vol. xxv, No. 9, 



p. 68, pi. xii, figs. 672—688. 



It may be mentioned that in Soldani's Testaceogr., vol. i, part 2, 1791, p. 98, 

 pi. cv, fig. M, referred to by him as " Orthoceras Guspis" is the same as B. 

 pauperata, or a sub-variety of B. farcimen, Reuss. 



Characters. — Often irregular in growth, the chambers not being symmetrical 

 in shape and size ; the early chambers are generally subcylindrical and compact ; 

 sometimes the septa are nearly all obscure. 



Occurrence. — The typical form, namely, Bentalina communis^ d'Orb., is found 



^ In 1863 von Eeuss (' Bull. Acad. Eoy. Beige,' ser. 2, vol. xv, p. 146, pi. i, fig. 18) separated 

 the variety "with straight septal planes" (part 1, 1866, p. 58) from that "with oblique septa," 



