ZOOPHYTA.] DEVONIAN RADIATA. 65 Sect. II RADIATA OF MIDDLE PALyEOZOIC (DEVONIAN) ROCKS. 3rd Class, ZOOPHYTA. [Lin.) See page 1. 2nd Ord. Zoophytaria (Blainv.) see page 9. 3rd Family. TUBIPORIDiE (See page 9). Genus. STROMATOPORA (Gold.) (see page 12). Stromatopora com centrica (Gold.) Ref.—Goldf'uss Pet. Germ. t. 8. f. 5. Phill. Pal. Foss. t. 10. f. 28. Sp. Ck.— Corallum forming amorphous undulating masses, composed of undulating slightly irregular and unequal laminae, connected by vertical filaments, forming layers of sub-prismatic cells (three or four layers of cells in the space of one line) in the vertical section, and obscurely concentric or uniform clouds of short vermicular dots (sections of the filaments) in the transverse section. The more irregular undulating forms of the mass and undulations of the component laminae, as well as the comparatively large size of the cells, and small number of layers in a given space, easily distinguish this species from the Silurian Stromatopora, with which it has been usually confounded. The long ver micular tubular perforations passing through the mass, are about one-fifth of a line in diameter, and being little larger than the ordinary openings, are in consequence rarely seen, except by the careful observer. I have identified the British Devonian species with authentic specimens from the Eifel. Position and Locality.—Common in the Devonian limestone of Newton Bushel, and Teignmouth. Stromatopora polymorpiia (Gold.) Ref.—Gold. Pet. Germ. t. 64. f. 8. Phill. Pal. Foss. t. 10. f. 27. Geol. Trans. Vol. V. t. 58. f. 2. Sp. Ch.—Polymorphous, usually forming rounded masses about two inches in diameter, irregularly mammi- lated at the surface, summits of the mamilhe irregularly perforated by radiating vermicular channels; section shewing a minutely reticulated irregular tissue (as in Porites) of thick vermicular plates, traversed at irregular intervals (usually about a line) by long cylindrical tubuli, about a fifth of a line in diameter, and having irregularly stellate centres, formed of a few similar tubuli irregularly converging and anastomosing at distances of about four lines; concentric undulating distant bands of denser structure, very obscurely marked. I have carefully compared the British Devonian species with authentic specimens from the Eifel. Position and Locality.—In the Devonian limestone of Newton Bushel. K