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Image of Pictorium koperbergi (Schepman 1907)
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Pictorium koperbergi (Schepman 1907)

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Cerithium koperbergi Schepman, 1907

Cerithium koperbergi Schepman, 1907:188–189. pl 12: fig. 1, 1a [holotype: ZMA 3-06-004, 8.9 mm, one paratype, ZMA; type locality: Kajoe Ragi, Celebes, Indonesia, post-Teitiaiy],

DESCRIPTION.—Shell (Figure 67): Shell short, squat, with nearly concave, rapidly expanding upper spire, and comprising 11 or 12 inflated adult whorls, reaching 8.7 mm length and 4.5 mm width. Protoconch unknown. Early teleoconch whorls (Figure 67D) straight-sided, sharply indented presuturally, sculptured with 3 spiral threads. Adult teleoconch whorls inflated, sculptured with about 15 fine spiral lirae crossed over by 18 or 19 strong axial ribs. Suture strongly impressed. Body whorl large, wide, and with strong varix opposite outer lip of aperture. Base of body whorl rounded, with very slight siphonal constriction. Aperture circular-ovate, about one-third the shell length. Anterior siphonal canal short, shallow, wide, turned to left of shell axis. Anal canal a short spout at posterior of aperture. Columella sharply concave with callus and slight columellar lip. Outer Up of aperture thick, nearly smooth, sometimes with weak crenulation, and slightly pendant below anterior canal. Shell color cream with wide orange and rose spiral bands. Aperture white, tinged with rose. Measurements (Table 24). Operculum unknown.

Radula: Unknown.

Anatomy: Unknown.

SYNONYMIC
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bibliographic citation
Houbrick, Richard S. 1992. "Monograph of the genus Cerithium Bruguiere in the Indo-Pacific (Cerithiidae: Prosobranchia)." Smithsonian Contributions to Zoology. 1-211. https://doi.org/10.5479/si.00810282.510