NUMMULITES BOUCHERI. 367 



Blainville, Cuvier, Butschli, Credner, Hartwia, Greene, Catullo, 

 Boube'e, Brunner, Caillinud, Verbeek, Tchihatchejjf, Uhlig, con 

 Fritsch, Alth, Brown, Bowdich, Ure, Bakewell, Moxon, Ansted, 

 Brevost, By el I, Cornuel, von Sunt ken and Madarasz, Brocklesby, 

 Beudant, Hitchcock, Semper, Hahn, Neumayr, &c. 



General Characters. — Shell free, lenticular or discoidal, spiral, equilateral, 

 biconvex ; convolutions numerous, embracing, the later usually hiding the 

 preceding whorls by the extension of the alar flaps of its saddle-like chambers 

 towards each umbilicus ; segments numerous, short and narrow, with their 

 lateral prolongations either straight, curved, sinuous, or interlacing ; the latest 

 chambers in matured shells contracted at their peripheral margin, so that they 

 ultimately close in the shell ; septal orifice single at the inDer border of the 

 septum. 



1. Nummdlites Boucheri, Be la Harpe, 1879. Plate II, figs. 51, 52 {Nummulina 



planulata). 



Part I, 1866 (Nummulina planulata), Appendix I, Table No. 93 ; Appendix II, 

 Table No. 92. 



Nummulites vasca, Joly et Leymeric, pars, d'Archiac et Haime, 1853. Foss. de 



l'lnde, p. 145, pi. ix, fig. 12. 

 Nummulina Gebmanica, pars, Bornemann, 1860. Zeitsch. Deutsch. Geol. Ges., 



vol. xii, p. 158, pi. vi, figs. 

 5—9. 

 Nummulites steiatus (d'Orb.), d'ArcJi., var., Hantken, 1875. Mittheil. Jahrb. 



kon. Ungar. Geol. Anstalt., vol. 

 iv, p. 85, pi. xii, fig. 5. 



— Boucheri, De la Harpe, 1879. Bullet. Soc. Borda a Dax, annee iv, 



p. 146, pi. i, figs, iv, 1—10; 

 vol. vi, pp. 240 and 243. 



— — 1883. Mem. Soc. Paleont. Suisse, vol. x, 



p. 179, pi. vii, figs. 33—59. 



— — Uhlig, 1886. Jahrb. k. k. Geol. Beichsanst, vol. xsxvi, 



p. 205, pi. ii, figs. 7, 8, and 10 (var.) ; 

 woodcuts (fig. 12), p. 206. 



Characters. — A small lenticular Nummulite. Chambers relatively large, 

 obliquely subquadrate; alar flaps rather broad, with strong septa, partially bent 

 and slightly irregular, but giving a distinctly radiate pattern to the surface. 

 This form belongs to the radiate group, and is thus related to Nummulites striatus, 

 variolarius, radiatus, Guettardi, Ramondi, and others. Dr. Philippe de la Harpe's 

 figures of N. Boucheri most resemble this Nummulite from the Crag. N. Boucheri 



