CORALS FROM THE SILURIAN FORMATION. 277 
denticulations. Diameter of the branches two or three lines ; large diameter of the calices 
about one fourth of line; small diameter about one eighth. 
Dudley. Sir Roderick Murchison has found it at Wenlock, Ledbury, Lincoln Hill, 
and Coalbrook Dale, Nasch Scar, Presteign, Abberley Hills. Aymestry, Herefordshire 
(M‘Coy). Russia (Hichwald). 
This species is well characterised by its prominent mammilar calices, and by the peculiar 
form of their terminal aperture. C. fruticosus,! found by M. Steininger in the Devonian 
formation of the Hifel Mountains, to which Mr. Lonsdale referred this coral, much 
resembles it in its general form, but differs from it by the oblique direction of its calicular 
apertures. 
3. Canires LinzaRis. Tab. LXV, fig. 3. 
C@ENITES LINEARIS, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleeoz. (Arch. 
du Mus., vol. v), p. 302, 1851. 
Corallum massive, convex or subgibbose, and composed of thin superposed layers. 
Calices closely set, not prominent, or but very slightly so, linear, with their margin very 
obscurely denticulated, about half a line broad and one twelfth in the contrary direction. 
Dudley. Collection of Mr. Fletcher. 
This species differs greatly from the preceding ones, by its massive form, and its com- 
pletely linear calices. 
4, Canitus taBrosus. ‘Tab. LXV, figs. 6, 6a. 
CanttEs LaBrosus, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleeoz. (Arch. 
du Mus. vol. v), p. 302, 1851. 
Corallum lamellar, cyathoid, and pedunculated; its under surface granulose, and 
resembling that of a rasp; each tubercle being terminated on its upper side by an almost 
semilunar aperture, the under lip of which is prominent, slightly emarginated in the 
middle, and almost covers the aperture. The medial denticulations of the upper lip not 
much developed ; breadth of the calices about one third of a line. ‘The upper surface is 
completely covered by extraneous matter in both specimens that we have seen. 
Dudley. Collection of Mr. Fletcher. 
This coral differs from all the other species of the same genus in general form, and 
in the peculiar disposition of the under lip which hides the marginal denticulation of its 
calices. 
1 Limaria fruticosa, Steininger, Mém. Soc. Géol. de France, vol. i, p. 339, 1831. 
37 
