154. BRITISH FOSSIL CORALS. 
2. Genus Micuexinta, (p. Ix.) 
1. Micuexini1a Favosa. Tab. XLIV, figs. 2, 2a, 24, 2e. 
Honey coms, Parkinson, Org. Rem. of a Former World, vol. ii, p. 39, pl. v, fig. 9, 1808. 
Manon Favosum, Goldfuss, Petref. Germ., vol. i, p. 4, tab. i, fig. 11, 1826. 
PoORITES CELLULOSA, Fleming, Brit. Anim., p. 511, 1828. 
FAVASTREA MINON, Blainville, Dict. Sc. Nat., vol. lx, p. 340, 1830; Man., p. 375. 
Porites ceLLuLosa, S, Woodward, Syn. Table of Brit. Org. Remains, p. 6, 1830. 
MicHELinta Favosa, De Koninck, An. Foss. des Terr. Carb. de Belg., p. 30, pl. c, fig. 2, 
1842. 
CoLUMNARIA SENILIS, i6., p. 25, pl. B, fig. 9. Specimen in a bad state of preservation. 
FaVOSITES ALVEOLATA, Geinitz, Grund. der Verst., p. 572, 1845-46. 
Micuexrnta Favosa, Michelin, Icon. Zooph., p. 254, pl. lix, fig. 2, 1846. 
MIcHELINIA FAvOSA and FavastREA SENILIS, D’Orbigny, Prod., vol. i, p. 160, 1850. 
MIcHELINIA FAvOosA, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palzeoz., 
p. 249, 1851. 
Corallum massive, generally circular; upper surface slightly convex ; common basal 
plate covered with a thick epitheca, that sends off numerous and well-developed radiciform 
processes. Ca/ices somewhat unequal, shallow, and presenting, in well-preserved specimens, 
margins thickened by small endothecal vesicles. When these vesicles are destroyed near 
the upper edge of the wall, thirty or forty somewhat unequal small septal striae become 
visible, and the wall shows small horizontal series of pores. Diagonal of the calices three 
or four lines. 
Found at Masbury, near Mendip, Somersetshire, and in Derbyshire; at Hook Point, 
Wexford, and in Enniskillen. The same species has been found at Tournay and Visé in 
Belgium, and at Ratingen, in Prussia; but it is erroneously that Goldfuss states that it is 
also met with in the Eifel. Specimens of this Coral are in the Collections of the Geological 
Society of London, of the Bristol Museum, of J. S. Bowerbank, Esq., &c. 
Michelinia favosa differs from M. antiqua (see p. 156) and IM. concinna’ by the 
irregular form and vesicular structure of its endotheca. The aspect of its upper surface, 
due to the unequal development of the calices, distinguishes it from I. geometrica;? 
and the radiciform processes of its under surface distinguishes it from M. convewa,* 
M. tenuisepta,* and MM. megastoma.'’ 
Lonsdale, in Geol. of Russia, by Murchison, Verneuil, and Keyserling, vol. ii, p. 611, pl. 4, fig. 3. 
Milne Edwards and Jules Haime, Polyp. Palzeoz., tab. xvii, fig. 15. 
Op. cit., tab. xvi, fig. 1. 4 See tab. xliv, fig. 1. 5 See tab. xliv, fig. 3. 
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