CORALS FROM THE SILURIAN FORMATION. 291 
5. Genus CHoNOPHYLLUM (p. Ixix). 
CHONOPHYLLUM PERFOLIATUM? ‘Tab. LX VIII, figs. 2, 2a. (See p. 235, and Tab. IV, fig. 5.) 
It is not without some hesitation that we refer to this species, already described in 
the preceding chapter as bemg common in the Devonian formation, a coral found by 
M. D’Archiac in the Silurian rocks at Wenlock. ‘The only apparent difference between 
this fossil and the Torquay specimen consists in the form of the calice, the border of 
which is not everted. 
6. Genus PrycHOoPHYLLUM (p. lxix). 
PrycHoPpHYLLUM PaTELLaTuM. Tab. LXVIL. figs. 4, 4a. 
Funaires MEDIA, &e., Magnus Bromel, Acta Liter. Suec., vol. ii, p. 463, 1728. 
— PATELLATUS, Schlotheim, Petref., Ist part, p. 247, 1820. 
— Kruger, Gesch. der Urwelt, vol. ii, p. 253, 1823. 
— = Hisinger, Leth. Suec., p. 99, pl. xxvin, fig. 3, 1837. 
STROMBODES PLICATUM, Lonsdale, in Murchison, Sil. Syst., p. 691, pl. xvi bis, fig. 4, 1839. 
_ pLicatus, M‘Coy, Sil. Foss. of Ireland, p. 61, 1846. 
CYATHOPHYLLUM PATELLATUM, Bronn, Index Pal., vol. i, p. 369, 1848. 
CyaTHaxonta PLicata, D’ Orbigny, Prodr. de Pal., vol. i, p. 48, 1850. 
PrycHOPHYLLUM PATELLATUM, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzeoz. 
(Arch. du Mus., vol. v), p. 407, 1851. 
Corallum simple, pedicellated, straight or slightly curved, and short. Epitheca 
wrinkled; borders of the ca/ice Jamellated and very much everted, so as to give to the corallum 
the form of a mushroom, and to produce a circular elevation around the central fossula, 
which is very deep. Pseudo-columella small. Sepéa nearly 100 in number, somewhat 
unequally developed alternately, rather thick exteriorly, but very slender towards the centre 
of the calice, where the large ones become strongly twisted, and rise up a little to form 
the columella. Height about 14 inch; diameter of the calice twice the height or even more. 
Brand Lodge, Malvern, Malvern Mountains. Doonquin and Dingle, in the county of 
Kerry (M‘Coy). It is also met with in Gothland. 
Specimens are in the Bristol Museum, Bonn Museum, in the Collections of the 
Geological Society of London, and of M. de Verneuil. 
This species much resembles P. eatensum’ in its general form, but its septa are more 
numerous and more equally developed. 1t differs from P. Stokesi,” by the lesser size of 
its pseudo-columella. 
1 Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzeoz., p. 408, pl. vin, fig. 2. 
2 Ibid., p. 407; Stokes, Geol. Trans., 2d ser., vol. i, pl. xxix, fig. 1 (dextra), 1824. 
