 Shell elongate, subulate. Volutions moderately convex, about thirteen in the largest specimens known, very gradually increasing in size from the minute apex, the last one ventricose. Aperture ovate, narrowing below; columella extended. Surface marked...  Natural History of New York ...: pt.i-vi - Página 45por New York (State). Natural History Survey - 1879Vista completa - Acerca de este libro
 | New York State Museum - 1862 - 598 páginas
...nexilii of PHILLIPS. SHELL elongate, subulate. Volutions convex, about thirteen in the largest specimens, very gradually increasing in size from the minute...extended. SURFACE marked by longitudinal sharp curving striffi, which bend backwards from the suture and forwards towards the base of the volution, having... | |
 | Kentucky Geological Survey, Henry Nettelroth - 1889 - 392 páginas
...volutions are gradually increasing in size from the very minute apex to the aperture ; the last one becomes ventricose. Aperture ovate, narrowing below, columella...bend gently backward from the suture, and forward to the base of the volution, having the greatest curve near the middle, those of the last volution... | |
 | Indiana. Department of Geology and Natural Resources - 1901 - 936 páginas
...hamiltoniae Hall, Pal. NY, Vol. V, Pt. II, 1879, p. 45, PI. 13, figs. 15-17. Hall's description. — "Shell elongate, subulate. Volutions moderately convex,...striae, which bend gently backward from the suture, and forwards toward the base of the volution, having the greatest curve near the middle, those of the last... | |
 | Indiana. Department of Geology and Natural Resources - 1901 - 932 páginas
...hamiltoniae Hall, Pal. NY, Vol. V, Ft. II, 1879, p. 45, PI. 13, figs. 15-17. Hall's description. — "Shell elongate, subulate. Volutions moderately convex,...striae, which bend gently backward from the suture, and forwards toward the base of the volution, having the greatest curve near the middle, those of the last... | |
 | Wisconsin Geological and Natural History Survey - 1911 - 352 páginas
...p. 53, pl. 4, fig. 8. Pal. New York, Vol. V, pt 2, 1879, p. 45, pl. XIII, figs. 15, 17. Description: "Shell elongate, subulate. Volutions moderately convex,...gently backward from the suture, and forward towards tho base of the volution, having the greatest curve near the middle, those of the last volution curving... | |
 | Arthur Clifford Veatch - 1911 - 822 páginas
...5, pt. 2, 1879, p. 45, pi. 13, figs. 15, 17. This species has been described by Hall ' as follows: Shell elongate, subulate. Volutions moderately convex,...extended. Surface marked by longitudinal, sharp, curving stria, which bend gently backward from the suture, and forwards toward the base of the volution, having... | |
 | Geological Survey (U.S.) - 1912 - 178 páginas
...5, pt. 2, 1879, p. 45, pi. 13, figs. 15, 17. This species has been described by Hall * as follows : Shell elongate, subulate. Volutions moderately convex,...striae, which bend gently backward from the suture, and forwards toward the base of the volution, having the greatest curve near the middle, those of the last... | |
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