. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. r;l! , IN- ' f ^ !. 288 THE CA»CONIFEUOUS SYSTEM. In a longitudinal section the cells arc seen to rise vertically, and then suddenly curve to the surface, increasing at the same time in diameter, and having near the aperture a few thin transverse plates. It is perhaps worthy of inquiry whether this may not have heen a Polyzoan allied to lldopora. It is ve
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. r;l! , IN- ' f ^ !. 288 THE CA»CONIFEUOUS SYSTEM. In a longitudinal section the cells arc seen to rise vertically, and then suddenly curve to the surface, increasing at the same time in diameter, and having near the aperture a few thin transverse plates. It is perhaps worthy of inquiry whether this may not have heen a Polyzoan allied to lldopora. It is very ahundant at Windsor and on the Shu- benacadie, subdivision [d), Chaetetes tumidus (Fig. 85, J), Edwards and Ilaime.—I refer to this common Carboniferous species, a coral very abundant at Stewiacke, and occurring also at Windsor and in Cape Breton, and which a careless observer might readily confound with the preceding. It is, like it, a slender branching coral, but often moi'ti robust, and sometimes pre- senting even rounded or papillose masses; and in the longitudinal section its tubes do not curve suddenly outwards, but turn from the centre witli a gentle sweep toward the surface. Externally also it has no spines on the separating walls. Though I suspect that the synonymy given by Edwards and Haime includes several species, I feel certain that the present is one of them, and I have no hesitation more jiar- ticularly in identifying it with Favosites scabra of De Koninck. All these smnll branching corals of the Palaeozoic rocks require a thorough microscopical examination. Crinoidea.—Though some beds of limestone on the Shubenacadic at Windsor, and on the East River of Pictou, are full of crinoidal fragments, more particularly the joints of the stems, no specimens sufficiently complete for description have yet been found. MOLLUSCA. ; Polyzoa. Fenestclla Lyell'i, n. sp. (Fig, 86), coll. J. W. D., Windsor; coll. Hartt, Stewiacke.—This beautiful species is very charac
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