^{page 298 note 1} E.g. 1829, Phillips, in The Geology of Yorkshire, figures as Cucullaea pectinata on pl. iii, fig. 23, what we now call a Barbatia, and as Cucullaea concinna on pl. v, fig. 5, what we now call a Grammatodon (both Arcas in the old sense of the word).

^{page 298 note 2} p. 98, and pl. v, fig. v.

^{page 298 note 3} 1853, “Mon. Mollusca from the Great Oolite,” Pal. Soc., p. 49, pl. v, figs. I, 1a, 1b.Google Scholar

^{page 300 note 1} 1866, Proc. Chicago Acad. Sci., vol. i, p. 17.Google Scholar

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^{page 300 note 3} 1925, Proc. Dorset Field Club, vol. xlvi, p. 127.Google Scholar

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^{page 303 note 1} 1897, Revue critique de Paléozoologie, p. 93.Google Scholar

^{page 303 note 2} 1860, Proc. Acad. Nat. Sci., Philadelphia, p. 51Google Scholar; and 1864, in Meek and Hayden, Smithson. Contrib., vol. xiv, No. 172, p. 89, pl. iii, fig. 9.Google Scholar

^{page 304 note 1} 1876, Report on Invert. Cretaceous, and Tertiary Fossils of Upper Missour, p. 85.Google Scholar

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^{page 304 note 4} 1923, “The Concealed Mesozoic Rocks in Kent,” Mem. Geol. Surv., p. 95.Google Scholar

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^{page 306 note 1} 1892, , Whidborne, “Mon. Dev. Fauna of S. England,” Mon. Pal. Soc., vol. ii, p. 39, pl. i, fig. 1.Google Scholar

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^{page 307 note 3} 1860, loc. cit., vol. i, p. 906, and atlas, pl. lxvii, figs. 22–4.Google Scholar

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^{page 308 note 4} 1871, loc. cit., p. 336.

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