On the Persistence of Caryophyllia Cylindracea , Reuss, sp., a Cretaceous Species of Coral, in the Coral fauna of the Deep Sea

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Abstract
T he simple stony coral Caryophyllia cylindracea , Reuss, sp., is, comparatively speaking, a common fossil in the White Chalk. Lonsdale described the form, under the name of Monocarya centralis , in Dixon's ‘Geol. of Sussex,’ 1850; but it appears that MM. Milne-Edwards and J. Haime had already named the species Cyathina lævigata in their Monographie des Turbinolides, ‘Ann. des Sci. Nat.’ 3 e série, t. ix. p. 290, 1848. D'Orbigny recognized the species in 1850 as a form which had been described by Reuss in 1846 under the name of Anthophyllum cylindraceum (‘Kreideformation,’ p. 61, pl. 14. figs. 23–30); and after altering the generic title, he created that of Cyathina cylindracea . MM. Milne-Edwards and Jules Haime described the coral in their monograph of the British Fossil Corals (Palæontog. Society, 1850) under the name Cyathina lævigata , and, after recognizing the priority of Reuss in their ‘Hist. Nat. des Coralliaires,’ finally accepted the name of Caryophyllia cylindracea , Reuss, sp. I have referred to the species in the Supplement to the ‘British Fossil Corals’ (Palæntog. Soc.) and in the Report on the British Fossil Corals to the British Association. Hitherto Caryophyllia cylindracea , Reuss, has been considered a characteristic fossil of the White Chalk; and its horizon does not appear to have reached that of the uppermost beds of that series.

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