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Published online by Cambridge University Press: 01 May 2009
Owing to the defective character of Sowerby's description and figure of Nautilus elegans, the latter has been variously interpreted, specimens belonging to other species having been frequently referred to it. In the present paper we shall show what is the true N. elegans, tracing the history of the type-specimen, which we have been fortunate enough to identify in the collection of the British Museum. This done, we shall proceed to describe three other species, viz. N. elegantoides, d'Orbigny, N. Atlas, Whiteaves, and N. pseudoelegans, d'Orbigny, all evidently allied to N. elegans, and forming with it a group of species which may be appropriately called the “Group of Nautilus elegans.”
page 543 note 1 Min. Conch. vol. ii. 1816, p. 33, pl. cxvi.Google Scholar
page 543 note 2 Fossils of the South Downs; or Illustrations of the Geology of Sussex, p. 112, pl. xx. f. 1 (not pl. xxi. ff. 1, 4, 8).
page 543 note 3 This has been a stumbling-block to many. F. B. Meek (United States Geol. Surv. Terr. vol. ix. 1876, p. 500, footnote) says:—“his [Sowerby's] single figure being an oblique view does not show the form of the aperture.”
page 543 note 4 “Description of the Fossil Remains of Mollusca found ia the Chalk of England” (Mon. Pal. Soc), 1853, pt. i. Cephalopoda, p. 12, pl. iii. f. 3; pl. iv. f. 1.
page 543 note 5 Ibid. p. 13, pl. iv. figs, 2a, 2b.
page 543 note 6 D'Orbigny's N. elegans will now be known as Nautilus Atlas, a name proposed for it by J. F. Whiteaves (see post, p. 550).
page 544 note 1 Description des Foss. du Terr. Crét. Environs de Sainte-Croix (Pal. Suisse), sér. ii. pt. i. 1859, pp. 117, 136.
page 544 note 2 Mem. Geol. Survey India—Palæont. Iudica—I. Cretaceous Cephalopoda of Southern India, 1865, p. 209.
page 544 note 3 Cephalopoden der oberen deutschen Kreide, Abth. ii., Palæontographica, 1876, Band xxiv. (51) 171, Taf. xlvi. ff. 5–7.Google Scholar
page 544 note 4 Proceed. Acad. Nat. Sci. Philadelphia, 1862, vol. xiv. p. 25.Google Scholar
page 544 note 5 United States Geol. Surv. Terr. 1876, vol. ix. pp. 499–501.Google Scholar
page 545 note 1 Deser. des Foss. du Terr. Crét. des Environs de Sainte-Croix (Pal. Suisse), sér. ii. pt. i. 1859, p. 117.
page 545 note 2 Mem. Geol. Surv. India—Palæont. Indica—I. Cretaceous Cephalopoda of Southern India, 1861, p. 29; Ibid. 1866, p. 209.
page 545 note 3 Geological Survey of Canada—Mesozoic Fossils, 1876, vol. i. pt. i. p. 17.Google Scholar
page 545 note 4 Ibid. p. 18.
page 546 note 1 Descr. des Foss. du Terr. Crét. des Environs de Sainte-Croix (Pal. Suisse), sér. ii. pt. i. 1859, p. 117.
page 546 note 2 Ibid. pp. 123–128.
page 546 note 3 Mem. Geol. Surv. of India—Palfeont. Indica—I. Cretaceous Cephalopoda of Southern India, p. 33, pl. xvii. f. 3, pl. xviii. ff. 3, 3a, 3b, pl. xix. pl. xx. ff. 1, la.
page 547 note 1 Stoliczka, Mem. Geol. Surv. of India—Palæont. Indica—I. Cretaceous Cephalapoda of Southern India, p. 210, pl. xciii. f. 3.
page 551 note 1 A cast of this specimen is now in the British Museum.
page 552 note 1 Two specimens were sent, both numbered 4834 D; the larger one is represented in Fig. 3.
