360 XAUTTLOTDEA. 
Nautilus ellipticus, Scliafhautl, Siid-Bayerns Letli, (Jeogn. p. 214 
pis. Ivii. Iviii. 
Forhesi, d’Arcliiac, Descrip, cles Anini. Fo.«s. dii prroupe Xunimidi- 
tiqiie de I’lnde, livr. ii. ]). 338 (1834), pi. xxxiv. fig-s. 12, 12«. 
Geelonr/ensisj Foord, see supra, p. 332. 
imperialis, .1. Sowerbv, Min. Conch, vol. i. p. 0 (1812), pi. i. (upper 
and right-hand figures). 
Lahechei, d’Archiac, Descrip, des Anim. Foss, du gruupe Xuniinuli- 
tique de I’lnde, livr. ii. p. 338 (1834), pi. xxxiv. figs. 13, 13 f/, 
13 
macrocephalus, Schafhiiutl, Siid-Bayerns Leth. (leogn. p. 213 
(1803), pi. liv. figs. 2, n-c, 
Mokattanicnsis, Foord, see supra, p. 323. . 
rpfjalis, .T. Sowerby, Min. Conch, vol. iv. p. 77 (1822), ]>1. cc(dv. 
Sou'crhi/i, Wetherell, Phil. Mag. and .lourn. vol. ix. p. 400 (1830). 
urhanufi, J. de C. Sowerbv, Min. Couch, vol. vii. p. 30 (1843), 
pi. dcxxviii. 
, .sp., see supra, p. 330. 
{Ilercof/Iossa') JE'jyptiacuA, I'oord, see supn), ]). 334. 
( ) Cassifiiauus, Foord G. C. Crick, Ann. & Mag. Xat. Hist. 
ser. 0, vol. v. p. 408 (1800), fig. 0. 
Mandibles of Fossil Xautiloids. 
The calcified beaks of fossil Cephalopods have long l)cen known 
under the general terra Bhyncholites, first applied to them, in a 
generic sense, by Faure-Biguet These remains had ])reviously 
been described and figured by Knorr^, J. F. Gmelin and Blunien- 
bach \ and afterwards by Schlotludiu Blainville®, Roemer’, 
Broim* *^, Buckland”, Miinster’®, and many others. 
Various names have been bestowed upon these fossils. Thus, 
^ Considerations sur les Belenmites ; suiv’es d’un essai de Belemnitologie 
synoptique, avec 1 pi.; Lyon, 1810. I have not seen this work, but quote it 
from Blainville. 
^ Verstein. ii. tab. H. i.a. figs. 9, 10. 
® Natur.syst. d. Mineral-B. iii. tab. vi. figs. 79, 80. To this work I have 
not had access ; the reference is taken from Schlotheim and Bronn. 
^ Specimen Archmologiae Telluris, 1803, p. 21, tab. ii. figs. .3, a, d. 
* Die Petrefactenkunde, 1820, p. 169; Atlas — Verstein. aus v. Schlotheim’s 
Ssmmlung — tab. xxix. fig. 10. 
Memoire sur les Belemnites, 1827, p. 114, figs. 11, 11 a, 11 b. 12, 12 a. 
Die Verstein. des norddeutscheii Oolithen-Gebirges, 1836, p. 207. 
® Lethaea Geognostica, 1837, Band i. p. 180, Taf. xi. figs. 17, a-c. 
® Bridget ater Treatises — Geology and Mineralogy, 1837, vol. i. p. 319, 
pi. xxxi. figs. 5-11. 
Beitrage zur Petrefactenkunde, Heft i. 1843, p. 68, Taf. v. 
