188 BRITISH FOSSIL CORALS. 
lamellee, connected by numerous delicate transverse vesicular plates ; between each pair at 
the circumference, a shorter radiating lamella occurs, which only reaches half way to the 
axis, and where they occur, the connecting vesicular plates are smaller and more numerous 
than from thence to the axis, the intermediate open cellular space less than the outer one 
in width; vertical section indistinctly triareal; outer area defined, about one sixth of the 
width on each side, composed of small, much curved, vesicular plates, forming minute 
semicircular cells, arranged in very oblique rows upwards and outwards, about seven in a 
row; middle zone rather less than the outer one in width, passing gradually into the 
central structure, formed of few larger and less-curved vesicular plates than the outer zone, 
and having a nearly horizontal direction, one or one and a half reaching across the space ; 
central area composed of large, thin, close, little curved vesicular plates, forming a strongly 
arched series of narrow, elongate cells, the convexity of the arch upwards, conforming to 
the shape of the central boss in the cup. If the vertical section be at right angles to the 
medial fissure, or crest of the central boss, there is a line visible down the middle of the 
section ; ¢erminal cup deep, lined by the vertical lamella, and having a large oval promi- 
nent boss in the centre, traversed by a sharp mesial crest; about one half or one third of 
the radiating lamellz ascend the central boss, always in a direct line, those at the sides of 
the mesial crest being at right angles to it, the others joing at a more acute angle at the 
approach of the extremity; and, opposite one end of the crest, we generally observe one or 
two of the radiating lamellae shorter than the rest, producing a sort of siphon-like irregu- 
larity, such as we see in Caninia (Zaphrentis). 
“Tn the Carboniferous Limestone of Derbyshire; Shale of Beith, Ayrshire.” (J/*Coy, 
op. cit.) 
4. Genus AULOPHYLLUM, (p. Ixx.) 
1. AULOPHYLLUM FUNGITES. Tab. XXXVI, fig. 3. 
Funarres, David Ure, History of Rutherglen and East Kilbride, p. 327, pl. xx, fig. 6, 1793. 
TURBINOLIA FUNGITES, Fleming, Brit. Anim. p. 510, 1828. 
_ S. Woodward, Syn. Table of Brit. Org. Rem., p. 7, 1830. 
CyaTHOPHYLLUM FUNGITES, Geinitz, Grund. der Verst., p. 571, 1845-6. 
CLISIOPHYLLUM PROLAPSUM, M‘Coy, Ann. and Mag. of Nat. Hist., 2d series, vol. ili, p. 3, 
1849. 
AULOPHYLLUM PROLAPSUM, Milne Edwards and Jules Haime, Brit. Foss. Corals, Introd., 
p- Ixx, 1850. 
AULOPHYLLUM FuUNGITES, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzoz., 
p- 413, 1851. 
CLISIOPHYLLUM PROLAPSUM, M‘Coy, Brit. Paleeoz. Foss., p. 95, pl. ic, fig. 5, 1851. 
Corallum elongate, cylindro-conical, subpedicellate, curved, presenting small circular 
accretion ridges, and covered with a well-developed epitheca. Calice not known; upper 
