A monograph of the British fossil corals - kreidefossilien.de

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BRITISH FOSSIL COEALS.
40. Genus Dastphyllia.
Milne Edw. and J. Haime, Comptes rend., t. xxvii, p. 492, 1848.
Corallum fasciculate, cespitose, and dichotomous. Corallites 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., DasyphylUa echinulata, Milne Edw. and J. Haime, Ann. des Sc. Nat., 3""^ serie, t. x,
pi. viii, fig. 5.
41. Genus Colpophyllia.
Milne Edw. and J. Haime, Comptes rend, de I'Acad. des Sc., t. xxvii, p. 492, 1848.
Corallum sub-glomerate, remarkably light and fragUe, composed of series of corallites
cemented together laterally, wthout then- respective walls ceasing to be distinct on the
cahcular surface, where they are parallel, very thin, and constitute a double ridge on each
side of the cahcular trench. Calices individualized by the direction of their septa. Columella
rudimentary, or not existing. Septa 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 costse ;
ejntheca rudimentary.
Typ. sp., Colpophyllia gyrosa, MUne 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. Septa 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 exterior 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"" serie, t. .xi, p. 270, 1849.
Corallum having most of the characters of the preceding genus, but increasing by
cahcular gemmation. The gyri in general short, the marginal ones distinct, and not forming
No epitheca.
a common rim.
Typ. sp., Latomeandra 2iUcata, Milne Edw. and J. Haime, loc. cit., p. 271 ;
Lithodendron plicatum,
Goldfuss, Petref. Germ., tab. xiii, fig. 5.