CORALS FROM THE MOUNTAIN LIMESTONE. 161 
2. BEAUMONTIA LAXA. 
CoLuMNARIA LAxa, M‘Coy, Ann. and Mag. of Nat. Hist., 2d Series, vol. ili, p. 122, 1849. 
Braumontia LAxa, Milne Edwards and J. Haime, Pol. Foss. des Terr. Palzeoz., p. 277, 1851. 
CoLumNnarrIa LAxa, M‘Coy, Brit. Palzeoz. Foss., p. 92, pl. iii c, fig. 11, 1851. 
Corallites very long, sometimes free laterally, and cylindrical; at other times, aggre- 
gate and prismatical, or presenting some intermediate state between these two forms. 
Epitheca strong, complete, and not showing any traces of the costal strize in the free state. 
In the aggregate prismatic corallites, the transverse wrinkles of the epitheca become 
thinner, and the straight, rather closely set costal strize are then very visible. The visceral 
cavity or interior of the corallites is completely filled up with very large, irregular vesicles, 
that are convex upwards, decline outwardly, and never form complete tabule. 
Height, nearly 8 inches ; diameter of the corallites 4 lines. 
Found at Wellington, and in Derbyshire. Specimens are in the collections of the 
Cambridge Museum, and of M. E. de Verneuil, at Paris. 
This Coral differs from the other species of Beaumontia, by the tendency of the 
corallites to remain separate, or to coalesce but incompletely. By the entirely vesicular 
structure of its endotheca, it approximates to B. venelorum,' in which species the corallites 
are always basaltiform, and vary much in breadth. 
Sub-Family Hatysrrmna, (p. 1x1.) 
Genus Syrincorora, (p. |xii.) 
1. Syrincopora RAMuULOSA. Tab. XLVI, figs. 3, 3a, 30, 3c. 
Tuprpora, Knorr and Walch, Rec. des Mon. des Catastr., vol. iii, p. 168, Supp., pl. 6 FP 
He 7 fio: 
Syrmncopora RaMULOSA, Goldfuss, Petref. Germ., vol. i, p. 76, pl. xxv, fig. 7, 1826. 
= — Morren, Descr. Corall. in Belg. repert., p. 69, 1832. 
—_— — John Phillips, Geol. of York, vol. ii, p. 201, pl. ii, fig. 2, 1836. 
—_— — Milne Edwards, Ann. de la 2e Edit. de Lamarck, vol. ii, p. 327, 
1836. 
= — Portlock, Rep. on Londonderry, p. 337, 1843. 
_ — M‘Coy, Syn. Carb, Foss. of Ireland, p. 190, 1844. 
HarMopires raMuLosus, Keyserling, Reise in Petschora, p. 174, 1846. 
_ _ D Orbigny, Prod. de Palont., vol. i, p. 162, 1850. 
Syrtmncorora RAMULOSA, Milne Edwards and J. Haime, Pol. Foss. des Terr. Palzeoz., 
p. 289, 1851. 
—- — M‘Coy, Brit. Paleeoz. Foss., p. 83, 1851. 
1 Milne Edwards and Jules Haime, op. cit., tab. xvi, fig. 6. 
