Conus
(Lithoconus) abruptus (Marshall, 1918)
Description.
Conus (Lithoconus) abruptus. n. sp. (Plate XX, figs. 7, 7a.)
Shell of moderate size, conical, 20 mm. by 11 mm.
Spire of 5 whorls, almost flat, and from it the protoconch of 3 whorls projects
sharply. Aperture narrow. Columella with a spiral groove near its anterior end.
Ornamentation: The whorls of the spire each with about
5 spiral lirae crossed by numerous growth-lines. Suture moderately deep.
Body-whorl with numerous but indistinct growth-lines. Eleven distinct spiral
lirae near the anterior end. Otherwise the surface is quite smooth.
One specimen, in good condition. This subgenus has not
previously been recorded from New Zealand.
Type in the Wanganui Museum.
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Conus
abruptus (1) Plate XX figs.
7, 7a mm. 20 x 11 |
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AU
6511 Geological
Collections, The University of Auckland A fossil cone
shell from the Early Miocene (22-19 million years old) of Kaipara Harbour,
Northland, North Island, New Zealand |
Bibliografia Consultata