APPENDIX A. (LONSDALE ON CORALS.) 
631 
side downwards in a hard crystalline matrix which did not admit of mechanical removal. The exposed 
surface consisted chiefly of the dorsal terminations of the cells, with patches of the tubular layer and a 
few fragments of the outer crust. The extremities of the cells occupied the whole width and length of 
the branches, and they varied slightly in size, but bore no resemblance to the terminations of true tubular 
polypidoms. The bifurcations were very irregular in position, being sometimes near together, but some- 
times separated by considerable intervals ; and the inequalities in the subdivided branches for a short 
distance were often very marked. The tubular layer was thin, but the outer crust had relatively a great 
thickness, modifying the form and size of the meshes. The perfect characters of the cellular surface could 
not he ascertained. 
Locality and Formation. Goradofka, in the coal-region of the Donetz. Upper carboniferous limestone 
with Fusulima and coal. See p. 97, and PL I. f. 2. 
Anthophyllum ? incrust ans. 
Incrustmg; tubes lamelliferous? short, more or less conical, not in contact, interspaces occupied by variously 
arranged lamina. 
Calamopora incrustans, Phillips? Illustrations, Geol. Yorkshire, part ii. p. 200. pi. 1. figs. 63, 64 
In the Fable of Permian fossils (p. 255) the generic determination of this coral is given doubtfully, and 
it must be considered as quite provisional, the only specimen which the describer has seen being imper- 
fectly preserved. He has, nevertheless, deemed himself warranted not to consider it a Favosites (Cala- 
mopora) on account of the laminated interspaces between the tubes ; and it was this structure which 
induced him to assign the fossil to Anthophyllum as restricted by Ehrenberg. 
The tubes were generally narrow at their lower extremity and widened very gradually. The greatest 
ascertained length was one line, and breadth at the upper end half a line. They were often much in- 
clined for a third of their range, and were seldom wholly vertical. Traces of lamella' were noticed, but 
they were very indistinct. Around the best-preserved mouths was a marginal swelling, indicative, pro- 
bably, of the semi-globular protuberances represented in Mr. Phillips's magnified figure of Cal. incrustans 
(Op. at., pi. 1. fig 64). The intertubular structure, as exposed in a side section, consisted of transverse 
fine lamina (see also fig. 64), and on the upper surface of similar plates, but arranged vertically, and more 
or less reticulated. No distinct rows of foramina were noticed on the sides of the tubes. 
Locality and formation. Ust-\ aga, i. e. ddbouchure of the Vaga into the Dwina. Permian. 
Stenopora 1 . 
Under this generic name it has been proposed to include certain corals composed of elongated tubes, 
ano which exhibit at one period of development the peculiarity of a perfectly closed mouth. It is be- 
lieved that many palaeozoic polypidoms which have been assigned to the genera Ceriopora and Millepora 
will be found to be referable to it. 
In a recent notice on some Australian corals, the following generic characters were given : 
“A ramose, spherical or amorphous tubular polypidom ; tubes polygonal or cylindrical, radiated from a centre 
or an imaginary axis, contracted at irregular distances, but in planes parallel to the surface of the specimen ■ 
tubular mouths closed at final period of growth ; ridges bounding the mouths, granulated or tuberculated ■ 
additional tubes interpolated s .” 
1 In the Table, p. 255, the generic name Tubuliclidia appears, but it having been considered objectionable Ste. 
nopora has been substituted for it. 
2 Physical Description of New South Wales, &c., by P. E. Strzelecki, p. 262, 1845. 
4 m 2 
