ANIMALS. A3 
PHYLLOPORA EHRENBERGI, Geznitz. Pl. V, figs. 1, 2, 3, 4, 5, 6. 
GorGonta EnRENBERGI, Geinitz. Grundriss, p. 585, pl. xxiii a, fig. 12, 1846. 
FENnESTELLA Permiana, King. Catalogue, p. 6, 1848. 
Retrerora Lonspatu, Howse. T. N. F. C. vol. i, p. 263, 1848. 
FENESTELLA EHRENBERGI, Geinitz. Versteiner., p. 18, pl. vu, figs. 16-18, 1848. 
Diagnosis.—Foliations infundibuliform: generally (?) not much folded. Meshes 
oval: a little wider than the interstices: m general arranged in linear series 
longitudinally ; and alternately in the opposite direction. Cellules slightly inclined 
upwards: from two to three on an interstice: with an oval or circular aperture, and 
a polygonal base. Von-celluliferous face marked with fine, waved, longitudinal strie. 
Capillary tubes flexuous. 
This beautiful Coral, first discovered by Geinitz, is remarkable for consisting 
apparently of a single funnel-shaped foliation, strikingly conical when young (vide 
Pl. V, fig. 2), but afterwards becoming more expanded. Besides the figure just 
referred to, Dr. Geinitz has given a similar one representing a specimen equally as 
conical in form, and a larger one showing the same character; and Mr. G. Tate 
collected a beautiful specimen at Tunstall Hill, of a nearly cylindrical form, and in a 
very unusual state of preservation, showing its inner or non-celluliferous surface. It 
must not be omitted, however, that I suspect, when we are more acquainted with this 
species, it will be found to consist of a number of foliations, as in the Fenestellide 
already described. Allusion has already been made to the nearly vertical position of 
the cellules in relation to the plane of the foliations, a character so marked, that I have 
been induced to regard it as of generic importance. Figure 6 of Plate V represents a 
magnified view of the cellules ; showing how strikingly their position contrasts with the 
curving and imbricated character of the cellules of Synoclada virgulacea. 
Phyllopora Ehrenbergi appears to be a scarce Coral both in England and Germany. 
It occurs very rarely at Silksworth, Tunstall Hill, and Humbleton Quarry, in the 
Magnesian Limestone. Geinitz mentions its occurrence in the Lower Zechstein at 
Corbusen and Milbitz; and in the Zechstein-Dolomite at Gliicksbrunn. 
Family THamniscipm, King. 1849. 
This group comprises certain shrub-like genera of Palzeozoic ciliobrachiate Corals, 
possessing the bi-structural and polypidomial characters of Fenestellidias, and having 
very much the appearance of recent Horneras. It embraces the two following genera, 
one of which (Zhamniscus) is the type, and apparently Mr. M‘Coy’s Ichthyorachis. All 
the known constituent genera are readily distinguished from Fenestellidias by having 
free stems and branches. 
' Annals and Magazine of Natural History, 2d series, vol. i, p. 389. 
