. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 316. pair of oblique furrows (occasionally others indistinctly visible); strong, bifurcating occipital furrow; lunate eyes: granulose thorax; abruptly deflected pleurae; semi-elliptical, well-grooved pygidiuni, with strong border. Found in the Encrinal limestone, at Section 5 (very rare). Proetus rowi. (Green.) (Fig. 2G0.) (Pal. N. Y., Vol. VII., p. 119, Pis. XXL, XXllI.) Distinguishing ClmrHcters.— Semi-elliptical to semi-circular cephalon; broad flat border; genal spines reaching to fourth thoracic seg- ment; si
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 316. pair of oblique furrows (occasionally others indistinctly visible); strong, bifurcating occipital furrow; lunate eyes: granulose thorax; abruptly deflected pleurae; semi-elliptical, well-grooved pygidiuni, with strong border. Found in the Encrinal limestone, at Section 5 (very rare). Proetus rowi. (Green.) (Fig. 2G0.) (Pal. N. Y., Vol. VII., p. 119, Pis. XXL, XXllI.) Distinguishing ClmrHcters.— Semi-elliptical to semi-circular cephalon; broad flat border; genal spines reaching to fourth thoracic seg- ment; simple, elongate sub-conate gla- bella, sloping to a broadly rounded an- terior extremity; lateral furrows absent; large lunate eyes; axis occupying more than one-third the width of the thorax ; pleural? with grooves; pygidium with nine or ten low, flattened annulations in the axis, and six in the lateral lobes, with indications of a seventh; con- spicuously thickened border; smooth or faintly pustulose surfaces. Found at "Hamburg and Eighteen Mile Creek, Erie County-' (Hall). Found in the Trilobite (?) beds, at Section 8 (R. P. Johnson). Proetus curvimarchxatus. Hall. (?) (Fig. 261.) {Froetus sp. Grabau: Faunas Ham. Group, p. 242. Com- pare Pal. N. Y., Vol. VII., p. 94, PI. XXII.) Dis t ing uisli ing Clmracters.— Sub-triangular glabella, rounded anteriorly; three pair glabellar furrows, the last pair curving strongly backwards and reaching the occipital furrow, the two anterior pair somewhat less curving, and shorter. Surface strongly pustulose. The specimen here described and figured re- FiG. 261. Proetus tains oulv the glabella, which has the out- curvimarginatus. (?) ^ o pieurod'SlIm bed^i li^^© and pustulose character of P. curvi- wanakah Cliff. (Origil umrginatus Ivoiw l^endleton, Indiana. Fig. 260. Proetus rotvi. Outline of a small individ- ual, enlarged to two diameters (after Hall and Clarke).. Please note that these images are extracted from scanned page image
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