Conus xenicus (Pilsbry & Johnson, 1917)
Description (1):
The shell is broad above, the diameter about two-thirds of the length; spire low, its outline strongly
concave, rising to an acute apex;
periphery carinate, the slopes below it nearly straight. The early whorls have a smooth keel,
projecting above the suture, but the
last five are flat, with very weak traces of spiral striae, and separated by a
plain, narrowly impressed suture. The last whorl has coarse, well separated spiral cords
on the anterior end, but under suitably
oblique light very faint spirals may be seen throughout.
The faint
growth-striae retract rather strongly near the shoulder. The aperture is very narrow.
Length 29 mm., diam. 19 mm. (type).
Length 27 mm., diam. 17 mm.
Besides the type, No. 2575, A. N. S. P., there are three other specimens in the lot. It was labeled "Conus
sp. ?, monstrosity" by
Gabb, but none of the specimens shows any trace of injury, and we have every reason to believe that
they are entirely normal.
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Conus xenicus
(2)
ANSP 2575 TAV.XX Fig. 11 mm. 28,5 – mm. 27,0 Oligocene |
Conus xenicus (3)
ANSP
2575 mm. 28,5 |
Bibliografia Consultata
·
(1) -
Pilsbry, H. A., and Johnson, 1917. Oligocene Fossils from the Neighborhood of
Cartegena, Columbia, with Notes on Some Haitian Species. Proceedings of
the Academy of Natural Sciences of Philadelphia, 69.
·
(2) - Pilsbry, 1921. “REVISION OF W.
M. GABB'S TERTIARY MOLLUSCA OF SANTO
DOMINGO.” Proceedings of the Academy of Natural Sciences of
Philadelphia. Vol. 73 1921