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12 are present additional specimens aperture Bartsch base is hemispherical Chrysallida columella is slender cream-yellow decollated deposits of North diameter 1.1 distinguish this species elongate-ovate figure fold a little gently curved incised spiral lines insertion intercostal spaces last whorl Length lip is gently Locklinia mollusks Mormula naming this species nodulose North St nuclear whorls nucleus consists oblique fold Odostomia Odostomia outer lip paleontology parietal wall Petersburg pleasure in naming Pliocene deposits Pliocene of North postnuclear turn postnuclear whorls Pyrgiscus readily distinguish rendered wavy retractively slanting axial ribs and spiral right angles rounded and marked Shell elongate-conic Shell elongate-turrited Shell small slanting axial ribs species Plate 15 spiral cords spiral pits spire whose axis stout strong axial ribs strong fold strongly rounded whorls subquadrate summit suture take pleasure thin callus tubercles Turbonilla Chemnitsia turrited umbilicated varix wall is covered wall is glazed whorls and measures whorls remaining