. 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. flpf \ FOSSILS. G05 angular band on the volution is the only means of determining its generic relations. This differs from any of the described species of Murchisonia from American localities. Arisaig, coll. J. \V. D. Murchisonia aciculata, Hall. Shell slender, very gradually tapering, volutions about six or seven, the last ones moderately vcntricose, apert
. 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. flpf \ FOSSILS. G05 angular band on the volution is the only means of determining its generic relations. This differs from any of the described species of Murchisonia from American localities. Arisaig, coll. J. \V. D. Murchisonia aciculata, Hall. Shell slender, very gradually tapering, volutions about six or seven, the last ones moderately vcntricose, aperture elongate-oval or ovate, rounded at the anterior margin, columella plain; volutions marked by p. distinct band along the centre, and a sub-sutural carina marking the upper side of the volu- tions ; surface striated, Arisaig, coll. J. W. D. Pleurotomaria. A flat species with four turns. Arisaig, Dr Iloney- man. Nictaux, J. W. D. Holopea reversa, Hall (Fig. 211). Shell small, sinistral; spire depressed, volutions about tliree; the two first small and gradually expanding, the last one rapidly expanding and ventri- â. cose ; aperture wide expanded ; suture impressed. Sur- face unknown. This shell \v i the general form of Holo- (Qj pea, but I have seen only a single specimen, which is a cast. It is remarkable and readily recognised from the spire. Arisaig, coll. J. W. D. Bucanla trilobifa, Hall. Arisaig, East River, Nictaux, coll. J. W. I). Bellerophon expansus ('?), Sow. Arisaig, Dr Iloneyman. Bellerophon carinatus, Sow. Arisaig, Dr Honeyman. Platyschimna helicites, Sow. Arisaig, Dr Honeyman. Acroculia hclicitcs, Sow. Arisaig, iJr Honeyman. This and the three last species are from the lists of Dr Iloneyman and Mr Salter. Orthoceras punctostriatiim, Hall (Fig. 212). Shell slender, very gradually tapering, almost cylindrical. S«-'pta distant about one-third the diameter. Siphuncle central ; action circular. Surface very finely striated with unequal undulating
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