150 BRITISH FOSSIL CORALS. 



whether there are or not any radiciform appendices ; the tabulae appear, it is true, to be 

 rather more convex than in the above-described species, but the data obtained, as yet, are 

 not sufficient to enable us to characterise this Coral as forming a distinct species. 



3. Michelinia megastoma. Tab. XLIV, figs. 3, 3a, 3b. 



Calamopora megastoma, John Phillips, Illust. of Geol. of Yorkshire, vol. ii, p. 201, pi. ii, 



fig. 29, 1836. 

 Favosites megastoma, M'Coy, Syn. Carb. Foss. of Ireland, p. 192, 1844. 

 Michelinea grandis. M'Coy, Ann. and Mag. of Nat. Hist., 2d series, vol. iii, p. 123, 1840. 

 Favosites megastoma, D'Orbiyny, Prod, de Paleont., vol. i, p. 160, 1850. 

 Michelinia megastoma, Milne Edwards and Jules Haime, Polyp. Foss. des Terr. Palaeoz., 



p. 251, 1851. 

 Michelinea grandis, M'Coy. Brit. Palaeoz. Foss., p. 81, pi. iiic, fig. 1, 1851. Good figure. 



Corallum subturbinate, convex, pediculate ; common basal plate covered with a thick 

 wrinkled epitheca, and not bearing any radiciform appendices. Calices very large, rather 

 deep, and somewhat unequal in size. Septal stria very delicate and numerous. Tabula 

 entirely composed of vesicles, which are very convex, but always broader than high. 

 Diagonal of the calices 8 or 9 lines. 



This fossil has been found at Kendal and at Bolland, in England ; in the Isle of Man ; 

 and at Attre, near Mons, in Belgium. Specimens are in the collections of the Geological 

 Society of London, of the Bristol and Cambridge Museums, &c. 



M. geometrical is easily distinguished from this species by the regular hexagonal form 

 of its calices ; M. antique? and M. concinna 3 differ from it by their large tabulae, being 

 almost horizontal ; and M. favosa^ by the presence of radiciform processes. The above- 

 described species differs from M. convexd? and from 31. tenuisepta 6 by the large size of its 

 corallites ; and it appears to be intermediate between these two species by the form of the 

 endothecal vesicles, these being less inflated than in 31. convexa, and more convex than 

 in M. tenuisepta. 



4. Michelinia antiqua. 



Dictyophyllia antiqua, M'Coy, Syn. Carb. Foss. of Ireland, p. 191, pi. xxvi, fig. 10, 1844. 

 Michelinia compressa, Michelin, Icon. Zooph., p. 254, pi. lix, fig. 3, 1846. 



— antiqua, D'Orbic/ny, Prod, de Palaeont., vol. i, p. 160, 1850. 



— — Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palaeoz., 



p. 252, 1851. 



1 Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palaeoz., pi. xvii, fig. 3. 



2 Dictyophyllia antiqua, M'Coy, Syn. Carb. Foss. of Ireland, pi. xxvi, fig. 10. 



3 Lonsdale inMurch., Vera., Keys., Russ. and Ural, vol. i, p. 611, pi. a, fig. 3. 

 * See tab. xliv, fig. 2. 



5 D'Orbiguy, Prodr., t. i, p. 10/ ; Milne Edwards and Jules Haime, loc. cit., pi. xvi, fig. 1. 



6 Tab. xliv, fig. 1. 



