DENTALINA PAUPERATA. 225 



variable shell ; and it scarcely appears wortli 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 Dentallna pcmperata itself, the following 

 may be mentioned. 



Dentalina communis (part), J., P., mid B., 1866. Monogr. Poram. Crag, 



p. 59, pi. i, figs. 13—18, 20. 



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



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



— — Rantken, 1876 (1881). Magyar kir. foldt. int. evkonyve, • 



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

 Jahrb. TJngar. geol. Anstalt, 

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



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



— — Terrigi, 1883. Atti Accad. Pont. Nuovi Lincei, vol. xxsv, 



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

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



cuts, figs. 14 a, i, c. 

 Dentalina paupeeata, 8herhorn and Chapman, 1886. Journ. E. Micr. Soc, 



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

 NoDOSAEiA ANNULATA, Fomasiiii, 1889. Foram. Mioc. S. Eufillo, pi. i, figs. 10 — 13. 

 Dentalina inceassata, Beissel (Sohapfel), 1891. Abbandl. k. Preuss. Geol. 



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

 10—13. 



NoDOSAEiA Paeonje, Dervieux, 1894. Boll. Soc. Geol. Ital., vol. sii, fasc. 4, p. GlL-^nTQ^S^ 



pi. V, figs. 36, 37. /^ -— --^ 



— PArPEEATA, 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. 



— paupeeata, 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, i-eferred to by him as " Orthoceras Gnspis" is the same as D. 

 pmiperata, or a sub-variety of D. farcimeu, 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, Dentalina communis,^ d'Orb., is found 



1 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," 



