. Annual report of the Regents. New York State Museum; Science. faint mesial depression in pedicle valve; slight frontal sinuosity; fine radiating striae near the front. Found in the upper Clinton Hmestone at Lockport (Hall). Probably also at Niagara. Whitfleldella sulcata (Vanuxem) (Fig. 128) (Grabau. Geol. soc. Am. Bui. 11:367, pi. 22) Distinguishing characters. Ventricose, elongate; well marked sinus in both valves; lines of growth and prominent wrinkles and changes in direction of growth. Found in the Manlius limestone of North Buffalo, etc. Whitfleldella rotundata (Whitfield) (Fig. 129) (
. Annual report of the Regents. New York State Museum; Science. faint mesial depression in pedicle valve; slight frontal sinuosity; fine radiating striae near the front. Found in the upper Clinton Hmestone at Lockport (Hall). Probably also at Niagara. Whitfleldella sulcata (Vanuxem) (Fig. 128) (Grabau. Geol. soc. Am. Bui. 11:367, pi. 22) Distinguishing characters. Ventricose, elongate; well marked sinus in both valves; lines of growth and prominent wrinkles and changes in direction of growth. Found in the Manlius limestone of North Buffalo, etc. Whitfleldella rotundata (Whitfield) (Fig. 129) (Grabau. Geol. soc. Am. Bui. 11:368, pi. 22) Distinguishing characters. Small, subcir- cular; moderately convex; beak curved at Fig. 129 whitfieweiia rotundata X 11^ right angles to plane of contact of valves. Found in the Manlius limestone of Erie county (N. Y.) Whitfleldella laevis (Whitfield) (Fig. 130) (Grabau. Geol. soc. Am. Bui. 111369, pi. 22) Distinguishing characters. Small; broad- ly ovoid; moderately gibbous, greatest gibbosity in posterior third; faint mesial depression. Found in the Manlius limestone of Erie rig. 130 Whitfleldella laevis x 13^ cOUUtV (N Y ) Genus hyattella Hall & Clarke [Ety.: proper name] (1893. Pal. N. Y. V. 8, pt 2, p. 61) Shell similar to Whitfieldella, but compactly subpenta- hedral, and without the median septum in the brachial valve. Hyattella congesta (Conrad) (Fig. 131 and 131a). Atrypa congesta Hall (1852. Pal. N. Y. 2:67, pi. 23); Atrypa quadricostata Hall (Pal. N. Y. 2:68, pi. 23). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience
