NAUIILID.^:, 
211 
1858. Nautilus lineatus, Oppel, Die Juraformation Englands, Frank- 
reichs imd des siidwestliclien Deutsclilands, p. 366. 
I860. Nautilus lineatus, Wright, Quart. Journ. Geol. Soc. vol. xvi. 
p. 40. 
1860. Nautilus lineatus ^ Coqiiand, Sjnop. des Foss. Second, de la Cha- 
rente, de la Charente-Inferieure, et de la Dordogne, p. 9. 
1864. Nautilus lineatus, Fbray, Etudes Geologiques sur le Departement 
de la Nievre, fasc. 13, 14, p. 269. 
1867. Nautilus lineatus, VVaagen, Ueber die Zone des Ammonites 
Soioerhyi (Geogn. Palaont. Beitrage, Band i.) p. 590 (84). 
1871. Nautilus lineatus, Phillips, Geology of Oxford and the Valley of 
the Thames, pp. 131, 164. 
1875. Nautilus lineatus, Lepsius, Beitrage zur Kenntn. der Juraforma- 
tion im Unter-Elsass, p. 26. 
1879. Nautilus lineatus, Stoddart, Proceed. Bristol Naturalists’ Soc 
vol. ii. pt. iii. p. 279. 
1880. Nautilus lineatus, Choffat, Etude Stratigraphique et Paleontolo- 
gique des Terrains Jurassiques du Portugal, livr. i. p. 41. 
1884. Nautilus lineatus, Mallada, Boletin de la Comision del Mapa 
Geologico de Espaha, Sinopsis de las Especies Fosiles de Espaua, 
vol. xi. p, 228. (Figured ibid. vol. v. 1878, pi. iv. IF. 5, 6.) 
1884. Nautilua lineatus, Damon, Geology of Weymouth, Portland, and 
Coast of Dorsetshire, new ed. p. 220. 
1890. Nautilus lineatus, Foord and G. 0. Criclr, Ann. & Mag. Nat. Hist, 
ser. 6, vol. v. p. 274, f. 8. 
[Not 1842. Nautilus lineatus, d’Orbigny, Paleont. Frang., Terr. .Jurass. 
vol. i. p. 155, pi. xxxi.] 
Char, “ ‘ Flatted, spheroidal, umbilicafce, surface obscurely 
striated, back flat, broad, with a concave line in the interior (which 
appears convex around the cast). Aperture rather square, deeply 
indented by the preceding whorl ; septa numerous. . . . Diameter 
about one third longer than the thickness. The septa are very con- 
cave, with three slight waves in their margins. The siphunculus is 
near the middle of each septa ’ [septum]. (Sowerby.) 
liemarJcs. The unsatisfactory character of Sowerby’s description 
and figures of this species has given rise to much confusion regarding 
its identity, and more than one species has doubtless been included 
under the name lineatus. 
“ Though neither of the figured types of lineatus are contained in 
the British-Museum Collections, yet there is a specimen (one of 
those (a cast) numbered 43854) labelled in Sowerby’s handwriting 
‘ Nautilus lineatus, M. C. 41,’ which agrees in all respects with his 
figures in the ‘ Mineral Conchology ’ (vol. i. pi. xli.). He, however, 
describes the sj^ecies as ‘ umbilicate,’ a statement which is not borne 
out by his figures ; and we think it highly probable that Sowerby’s 
p 2 
