Conus bramkampi (Hanna & Strong, 1949)
Descrizione e caratteristiche (1):
whorls about 10; shoulder rounded; color
markings consist of a uniform series
of square brown spots in
spiral rows, rather distantly spaced.
Length 48
mm., diameter 30.5 mm.
Holotype: No.
34198 (Univ. Calif. Mus. Paleo.),
from Loc. A-1269(U.C.), “south side of Carrizo Mountain, Imperial County, California;
Pliocene; in a small canyon about
3/8 mile east of the mouth
of Alverson Canyon in small
draws cut in
basal conglomerate on west side of canyon, 100-120 yards from
its mouth." (Bramkamp).
The species
is named for the late Mr. R. A. Bramkamp, Paleontologist, California Arabian Standard
Oil Company, who collected the
specimen along with many other forms. The
well preserved type specimen shows
the color markings better than a previous lot which
was identified as Conus regularis when adequate comparative material and
literature were not available. The similarity
is plainly seen with tessulatus and it indicates that the group is no late migrant into the
region, as might be supposed
from the rare occurrence of living specimens
here.
Woodring (Carnegie Inst. Washington, Publ. 418, Jan. 1931, p. 20) suggested the
possibility of this species being Conus proteus.
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Conus bramkampi
Holotype 34198 - Plate 10 fig. 2 mm. 48 x 30,5 Pliocene California |
Bibliografia Consultata
·
(1) - Hanna, G. D., and
Strong, 1949. West American mollusks of the genus Conus. Proceedings of the California
Academy of Sciences, ser. 4. vol. 26 (9 ): 247 -322
·