. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 208 Found ill the Moscow shales, at Sections 2, 8, 4 (rare); Encrinal limestone, at Section 5 (rare); Hamilton shales, at Sections 5 to <S, and on the Lake Shore (eA'erywhere abun- dant); Strophalosia bed and Transition shales, on the Lake Shore (not nncomnion); Marcehus shales, on the Lake Shore (rare). Measurements.—A very much extended individual gave: width, 100 mm.; height, 15 mm.; average width is less. Spirifek tullius. Hall. (Fig. 115.) (Pal. N. Y., Vol. IV., p. 218. PI. XXXV.) Distinguishing Cliaracter
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 208 Found ill the Moscow shales, at Sections 2, 8, 4 (rare); Encrinal limestone, at Section 5 (rare); Hamilton shales, at Sections 5 to <S, and on the Lake Shore (eA'erywhere abun- dant); Strophalosia bed and Transition shales, on the Lake Shore (not nncomnion); Marcehus shales, on the Lake Shore (rare). Measurements.—A very much extended individual gave: width, 100 mm.; height, 15 mm.; average width is less. Spirifek tullius. Hall. (Fig. 115.) (Pal. N. Y., Vol. IV., p. 218. PI. XXXV.) Distinguishing Cliaracters.— Small size (es])ecially so in this region); gibbous character; sub-elliptical outline; well- defined sinus, which extends quite u]:) to the beak; strongly. i^p^c ^'sm Fig. 115. Sjiirifer tullius. Ventral and cardinal views of pedicle valve and brachial valve of the normal form, as it occurs in the center of the State ; the Eighteen Mile Creek specimens are much smaller (from Hall). marked fold, which is wide at the bottom and naiTow at top; comparatively high cardinal area of pedicle valve; low, round and rather flattened surface plications; and fine, uniform radiating stria', which are esjiecially well visible be- tween the plications, on the fold and in the sinus; faint concentric stria^ also occur. Found in the Styliolina band, at Section 1; upper Moscow shales, between one and one-half and three feet below the Styliolina limestone, at Sections 2, 8, -1 (common). Measurements.— .\verage specimen in this region: width, 8 mm.; height, 5 mm. Spikifer (Delthyris) sculftilis. (Hall.) (Fig. IIG.) (Pal. N. Y., Vol. IV., p. 221, PI. XXXV.) Distinguisliing Cliaracters.— Medium size; gibbous char- acter; semi-elli})tical to sub-triangular outline; extended hinge line; sub-angular sinus, and strongly elevated Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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