CARBONIFEROUS FOSSILS OF IRELAND. 193 



irregularity of the transverse septa, distinguish it from the F. capillaris. Tliickness of the masses about one 

 inch, there are three tubes in the space of one line. 



Favosites spongites. Gold. 



Calamopora spongites Gold. Petref. Germ. 



The specimens referred to this species are closely allied to the F. spongites, but have the tubes slightly 

 flexuous ; they are probably, however, identical. 



Favosites (Michelinia) tenuisepta. Phil. 



Calamopora tenuisepta. Phil. Geol. York Michelinia tenuisepta. Koninck, Fos. Bel. 



Sp. Ck. — Conical, proliferous; external surface of the tubes convex, wrinkled across; cells very unequal, 

 rounded within, numerous, small, connecting foramina in the sides. 



This remarkable coral occurs usually in company with the nearly allied species C. megastoma and pa?'a- 

 sitica. Length usually about two and a half inches, width one and a half inches, diameter of the cells vary- 

 ing from one to three lines. 



Favosites tumida. PJdl. sp. 



Calamopora tumida. Phil. Geol. York. 



Sp. Ck. — Subramose, irregular, formed of concentric layers of square tubes, the mouths of which are con- 

 tracted to a smaller orifice at the surface, and whose angles bear nmnerous connecting foramina. 



This species is exceedingly irregular in form, and it appears probable that different species, and even 

 genera, may be confounded under the one name. 



Caunopora placenta. Phil. 



Coscinopora placenta. Lonsd. Geol. Trans. — Caunopora placenta. Phil. Pal. Fos. 



Sp. Ch — Form irregularly tumid; composed of concentric lamince, pierced by two sets of tubes, one 

 set numerous, very fine, and flexuous, the others larger, straight, cylindrical. 



I have used Professor Phillips' name to distinguish the Irish coral as well as the Devonian, although I 

 conceive it to be totally distinct as a species from the Coscinopora placenta of Goldfuss ; as Professor Phillips 

 has already shewn, it cannot enter into the genus Coscinopora of that author. 



Stromatopora concentrica. Lonsd. 



Stromatopora concentrica. Lonsd. SU. Syst. — Stromatopora concentrica. Phil. Pal. Fos. 



Sp. Ch. — Polymorphous, composed of numerous, thin, approximate, concentric laminae, perforated by fine, 

 straight tubes ; horizontal section finely reticulated. 



This is rather a doubtful species in the carboniferous series, the amorphous masses it usually forms having 

 little the appearance of organized bodies ; owing to the compactness of the limestone, it is often difficult to see 

 any of the characters of the coral, which has, therefore, been frequently passed over. 



Stromatopora polymorpha. Gold. 



Stromatopora polymorpha. Gold. Pet — Stromatopora polymorpha. Lonsd. Geol. Trans. — Stromatopora polymorpha. 



Phil. Pal. Fos. 

 Sp. Ch. — Polymorphous; concentric laminsE traversed by fine, vertical tubes; horizontal section irregularly 

 radiated and reticulated round many unequal centres. 



3C 



