XAUTILID^. 
147 
and robust habit, as well as in the almost total absence of tubercular 
ornaments {T. Morloti^ Mojs., e. g.), to Jurassic sj)ecies, and go far 
to confiiTu Professor Hyatt’s opinion that Nautilus excavatus of the 
Inferior Oolite is a late survivor of the present series h 
CAEBOHIFEROIJS SPECIES. 
Temnocheilus tuberculatus, J. Sowerby, sp. 
1821. Nautilus tuberculatus. J. Sowerby, Mineral Conchology, vol. iii. 
p. 90, pi. ccxlix. f. 4. 
1836. Nautilus tuberculatus, Phillips, Geol. of Yorkshire, pt. ii. p. 
pi. xxii. ff. 27, 29. 
? 1844. Nautilus {Temnocheilus) tuberculatus, M^Coy, Synop. Carbo - 
ferous Fossils of Ireland, p. 22. 
1849. Nautilus tuberculatus, d’Orbigny, Prodr. de Paleont. Stratigr. 
vol. i. p. HI. 
1852. Nautilus tuberculatus, Giebel, Fauna der Vorwelt, Band ii. 
Abth. i. p. 170. 
1854. Nautilus tuberculatus, Morris, Cat. of British Fossils, 2nd ed. 
p. 308. 
1855. Nautilus tuberculatus, M‘Coy, British Pal. Foss. fasc. iii. p. 562. 
? 1860. Nautilus tuberculatus, Eichwald, Lethpea Ilossica, vol. i. Se- 
conde Section de lAncieune Periode, p. 1315. 
1862. Temnocheilus tuberculatus, Griffith, Joiirn. Geol. Soc. Dublin, 
vol. ix. p. 33. 
? 1878. Nautilus latus, de Koninck, Faune dii Calcaire Carbonifere de 
la Belgique (Annales du Mus. Roy. d’Hist. Nat. de Belgique? 
tom. ii.), pt. i. p. 116, pi. xxiv. IF. 3 a, 3 5, 3 c. 
1845. Nautilus tuberculatus, Miirch., Vern., and Keyserl. Geol. 
de la Russie d’Eiirope, vol. ii. Paleont. p. 362, pi. xxv. ff. 12 a, 12 b. 
— 1860. Nautilus tuberculatus, Traiitschold, Die Kalkbrliche von 
Mjatschkowa, Ilalfte i., in Noiiveaux Mem. de la Soc. Imper. des 
Naturalistes de Moscou, tom. xiii. livr. i. p. 302, tab. xxx. if. 3 a, 
3 5.] 
Char. “ Discoid, of one and a half or two whorls commonly 
preserved, inner whorls very slightly concealed by the following 
ones ; greatest thickness at the edge of the periphery, which is very 
broad and gently convex, and usually marked along the middle of 
internal casts by a faint, cord-like, mesial ridge ; edges of the peri- 
phery broadly flattened, slightly sloped towards the umbilicus, and 
divided into obtuse tubercles, which are either conoidal or slightly 
^ Proc. Boston Soc. Nat. Hist. vol. xxii. 1883, p. 288. 
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