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" ... extremity, with a length of seventyfive millimeters. Surface marked by fine closely arranged striae, or frequently with more distant oblique annulations, receding from the aperture or sinuate on the ventral side — the degree of obliquity depending... "
Natural History of New York ...: pt.i-vi - Página 187
por New York (State). Natural History Survey - 1879
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Report, Volumen25

Indiana. Dept. of Geology and Natural Resources - 1901 - 8 páginas
...individuals a diameter of six millimeters at the largest extremity, with a length of seventyfive millimeters. Surface marked by fine closely arranged striae, or...longitudinal striae are visible in well preserved specimens." This species is not uncommon, but well preserved specimens are rare. The specimens which I have are...
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Annual Report, Tema 25

Indiana. Department of Geology and Natural Resources - 1901
...individuals a diameter of six millimeters at the largest extremity, with a length of seventyfive millimeters. Surface marked by fine closely arranged striae, or...longitudinal striae are visible in well preserved specimens." This species is not uncommon, but well preserved specimens are rare. The specimens which I have are...
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Maryland Geological Survey: pt.1] Lower Devonian, text

Maryland Geological Survey - 1913
...Surface marked by fine closely arranged stria1, or frequently with more distant oblique annulatious, receding from the aperture, or sinuate on the ventral...view. Interrupted longitudinal striae are visible in well-preserved specimens." Hall, 1879. This is an abundant and characteristic species of the Parkhead...
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Maryland Geological Survey: pt.1] Lower Devonian, text

Maryland Geological Survey - 1913
...individuals, a diameter of six millimeters at the larger extremity, with a length of seventy-five millimeters. Surface marked by fine closely arranged striae, or...more distant oblique annulations, receding from the aperature, or sinuate on the ventral side; interrupted longitudinal striae are visible in well preserved...
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