; CORALS FROM THE DEVONIAN FORMATION. 227 
The fossils described by Mr. Lonsdale under the name of Zurdinolopsis bina’ appear to 
belong also to the genus Cyathophyllum, but have as yet been found only in the form of 
casts which are scarcely determinable. They show in general 72 septa of unequal size, 
alternately denticulated, and slightly curved towards the centre of the visceral chamber. 
Prof. Phillips mentions the existence of this coral in the Devonian deposits of Combe, near 
Ashburton.” 
The corals to which the names of Zurbinolopsis pauciradialis,® T. elongata,’ T. rugosa,’ 
and 7. pluriradialis® have been given by Prof. Phillips, appear to be specifically identical, 
or very nearly allied to the preceding species ; but the specimens as yet known are so 
imperfect that we cannot lay before the reader any useful information concerning their 
structure. 
8. CYATHOPHYLLUM HELIANTHOIDES. ‘Tab. LL, figs. 1, la. 
CYATHOPHYLLUM HELIANTHOIDES, Goldfuss, Petref. Germ., vol. i, p. 61, tab. xx, fig. 2a—” 
and tab. xxi, fig. 1, 1826. 
FaVaSTREA HELIANTHOIDEA, De Blainville, Dict. Sc. Nat., vol. lx, p. 341, 1830.—Man., p. 375. 
TURBINOLIA HELIANTHOIDES, and ASTREA HELIANTHOIDEA, Steininger, Mem. Soc. Géol. de 
France, vol. i, pp. 344, 345, 1831. 
MonticuLaRiA AREOLATA, Ibid., p. 346, pl. xx, fig. 10. 
CYATHOPHYLLUM HELIANTHOIDES, Morren, Descr. Corall. Belg., p. 58, 1832. 
— — Milne Edwards, 2d edit. of Lamarck, vol. ii, p. 429, 1836. 
compressed specimens, its small end obtuse from the filling up of a considerable length of the base of the 
coral, by nearly solid sclerenchyme; external walls thick, dense; lamelle averaging 74 in the adult cups; 
with the diameter of two and a half inches, the primary ones extending towards the centre, nearly straight 
for above one third the diameter, then abruptly diminishing in strength, and gradually convoluted spirally 
towards the broad central area; the secondary lamellee much finer than the primary, extending about one 
fifth of the diameter towards the centre; internal casts with thirty-three to thirty-seven broad, flattened, 
smooth ribs, separated by deep smooth-edged sulci (representing the primary lamelle) ; these sulci in some 
specimens, divided by connecting filaments of matrix, produced by perforation in the original plate; each 
rib divided in the middle by a very fine slit, not reaching quite to the narrow base, (representing the 
secondary lamellee,) becoming nearly as strong as the primary towards the broad edge of the cup. No 
transverse vesicular laminz. Lengths of imperfect casts about two anda half inches; width of same 
specimen pressed flat, nearly four and a half inches ; width of ribs between the primary sulci at edge of cup 
varying from two to three lines. Very common in the fine grey Devonian slates of New Quay.”’ (M‘Coy, /. c.) 
' Turbinolopsis bina, Lonsdale, in Murchison, Silur. Syst., p. 692, pl. xvi bis, fig. 5, 1839. Turbinolopsis 
bina? Tbid., p. 693, pl. xvi bis, fig. 6. Petraia bina, M‘Coy, Syn. Sil. Foss. of Ireland, p. 60, 1846. 
Streptelasme bina, D’Orbigny, Prod. de Pal., vol. i, p. 47, 1850. Cyathophyllum binum, Milne Edwards 
and Jules Haime, Pol. Foss. des Terr. Paleeoz., p. 374, 1851. 
2 Palzeoz. Foss., p. 4, pl. i, fig. 2. 
% Phillips, Palzeoz. Foss., p. 5, pl. i, fig. 4. From Corffe Quarry, near Tawstock. 
* Ibid., p. 6, pl. ii, fig. 68. From Horderley, May Hill, and Lickey Hill. 
5 Tbid., p. 7, pl. ii, fig. 7e. From Snowdon. 
6 Tbid., pp. 5, 6, pl. ii, figs. 5a, 58. From Brushford, Linton, Pilton, and Fowey Harbour. 
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