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Taxon profile

species

Gibbula multicolor (Krauss, 1848)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Trochida »  family Trochidae - top-shells »  genus Gibbula

Scientific synonyms

Stomatella biporcata A. Adams, 1850
Gibbula fucata A. Gould, 1861

Images

Gibbula multicolor

Author: Jay, M.

Gibbula multicolor

Author: Bartsch, P.

Gibbula multicolor

Author: Kensley, B.

Taxon in country check-lists*

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Description

As Gibbula fucata Gould:
Shell elevated, helicoid, apex red, the rest variously spotted, streaked and blotched with Indian red, pale yellow, light green and brown. Nuclear whorls two and one-half, well rounded, smooth. Postnuclear whorls marked by four, very strong, rounded, equal, and equally spaced, spiral cords, of which the first is at the summit and the fourth at the periphery. On the last turn the cord at the summit becomes obsolete. In addition to the spiral sculpture the whorls are marked by very retractively slanting, closely spaced lines of growth. Periphery of the last whorl rendered decidedly angulatcd by the spiral cord. Base short, well rounded, marked on the posterior fourth by six, narrow, flattened, spiral bands and between these and the umbilical chink by seven additional bands of about double the width of the former. Umbilicus covered with a white callus. Aperture subcircular, very oblique; outer lip thin at the edge, thick within; columella strong and decidedly curved; parietal wall covered by a moderately thick callus.
Gould's co types, Cat. No. 2047, U.S.N.M., two Specimens, were col-lected by William Stimpson on the North Pacific Exploring Expedition at the Cape of Good Hope. The largest of these two specimens has two and one-eighth postnuclear whorls, and measures: Altitude, 5.6 mm.; greater diameter, 7.3 mm.; lesser diameter, 0 mm. Cat. No. 186876, U.S.N.M., contains three specimens from Port Alfred (Coll. No. 246).
Bartsch, P., 1915. Report on the Turton Collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum.
Author: Jan Delsing

Links and literature

EN Australian Faunal Directory [ac5618ee-b1c5-425b-848d-254a59631509]

ABRS (2009-2019): Australian Faunal Directory [https://biodiversity.org.au/afd/home], Australian Biological Resources Study, Canberra [as Stomatella biporcata A. Adams, 1850]
Data retrieved on: 15 February 2015
EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Gibbula multicolor Krauss, 1848]
Data retrieved on: 23 November 2013

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