XXXIV BRITISH FOSSIL CORALS. 
40. Genus DASYPHYLLIA. 
Milne Edw. and J. Haime, Comptes rend., t. xxvii, p. 492, 1848. 
Corallum fasciculate, cespitose, and dichotomous. _Cora/lites very long and segregate. 
Columella spongy. Septa thin, slightly exsert, and armed with apical teeth, the size of which 
is much greater near the columella than towards the margin of the calice. 
Typ. sp., Dasyphyllia echinulata, Milne Edw. and J. Haime, Ann. des Sc. Nat., 3™° série, t. x, 
pl. vin, fig. 5. 
41. Genus CoLPOPHYLLIA. 
Milne Edw. and J. Haime, Comptes rend. de l’Acad. des Se., t. xxvii, p. 492, 1848. 
Corallum sub-glomerate, remarkably light and fragile, composed of series of corallites 
cemented together laterally, without their respective walls ceasmg to be distinct on the 
calicular surface, where they are parallel, very thin, and constitute a double ridge on each 
side of the calicular trench. Ca/ices individualized by the direction of their septa. Colwmella 
rudimentary, or not existing. Sepéa extremely thin, broad, and slightly exsert ; their apical 
edge armed with small delicate teeth, and emarginate near the middle. Dissepiments 
very abundant, and closing up the loculi almost to the margin of the calice, and forming a 
vesicular mass. Common exterior walls of the corallum or plate presenting small, lamellar, 
nearly equal, denticulate costae ; epitheca rudimentary. 
Typ. sp., Colpophyllia gyrosa, Milne Edw. and J. Haime, Ann., t. xi, p. 266 ; Madrepora gyrosa, Ellis 
and Solander, op. cit.; tab. li, fig. 2; Manicina gyrosa, Ehrenberg, op. cit.; Mussa gyrosa, Dana, op. 
cit., p. 186. 
42. Genus OULOPHYLLIA. 
Milne Edw. and J. Haime, Comptes rend., t. xxvii, p. 492, 1848. 
Corallum composed of a series of corallites, intimately united by their lateral walls, 
which constitute simple ridges between the trenches formed by the aggregate calices. 
Columella spongy, and in general not highly developed. Sepéa thin, slightly exsert, closely 
set, and armed with numerous long, sharp, apical teeth, the size of which augments towards 
the centre of the corallite. Common eaterior walls sometimes covered with a thin epitheca ; 
multiplication fissiparous. 
Typ. sp., Oulophyllia Stokesiana, Milne Edw. and J. Haime, Ann. des Sc. Nat., vol. x, tab. viii, fig. 10. 
43. Genus LATOMEANDRA. 
D’Orbigny MSS.; Milne Edw. and J. Haime, Ann. des Sc. Nat., 3™ série, t. xi, p. 270, 1849. 
Corallum having most of the characters of the preceding genus, but increasing by 
calicular gemmation. The gyri in general short, the marginal ones distinct, and not forming 
a common rim. No epitheca. 
Typ. sp., Latomeandra plicata, Milne Edw. and J. Haime, loc. cit., p. 271; Lrthodendron plicatum, 
Goldfuss, Petref. Germ., tab. xiii, fig. 5. 
