Amalda hilgendorfi is a species of sea snail, a marine gastropod mollusc in the family Ancillariidae, the olives.[1]

Amalda hilgendorfi
Shell of Amalda hilgendorfi (specimen at MNHN, Paris)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Ancillariidae
Genus: Amalda
Species:
A. hilgendorfi
Binomial name
Amalda hilgendorfi
(Martens, 1897)
Synonyms
  • Amalda hilgendorfi herlaari Van Pel, 1989
  • Amalda hilgendorfi hilgendorfi (Martens, 1897)
  • Amalda hilgendorfi richeri Kilburn & Bouchet, 1988
  • Amalda hilgendorfi vezzaroi Cossignani, 2015
  • Ancillaria hilgendorfi E. von Martens, 1897 (original combination)

Description

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This species attains a size of 50 mm, its diameter 18 mm.

(Original description in Latin) The shell is fusiform-turreted, very faintly grooved in spirals. It is violet-white in color, with a pale orange callus covering the upper whorls and the sutural area of the penultimate and body whorls. Near the base, there is a more violet-colored band bordered above by a spiral groove, followed by a slightly swollen, pale orange callus.

The aperture is rather narrowly elliptical, approximately half the total length of the shell. It is white, with a blunt outer edge that is very slightly arched and thickened above. Near the base, it shows a small denticle, while the basal margin is broadly notched. The columellar margin is slightly sinuous and is sculpted outwardly with several obliquely aligned, somewhat indistinct folds. A thin white callus extends onto the final and penultimate whorls. [2]

Distribution

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Deep water: 400 metres. Broadly distributed in the West Pacific, recorded from Japan, the Philippines, Papua New Guinea and the Solomon Islands, eastern Australia, the Coral Sea, and New Caledonia. [1]

References

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  1. ^ a b Amalda hilgendorfi (Martens, 1897). Retrieved through: World Register of Marine Species on 28 April 2010.
  2. ^ Martens, E. von (1897). "Conchologische Miscellen II". Archiv für Naturgeschichte. 63 (1): 167. Retrieved 12 November 2024.   This article incorporates text from this source, which is in the public domain.
  • van Pel, P.L. (1989). "A new subspecies of the genus Amalda from the Arafura Sea (Gastropoda, Olividae)". La Conchiglia. 21 (238–241): 13–15.
  • Wilson, B. (1994). Australian marine shells, prosobranch gastropods. Kallaroo, W.A.: Odyssey Publishing.
  • Tsuchida E. (2017). Family Olivellidae. pp. 995–997, in: T. Okutani (ed.), Marine Mollusks in Japan, ed. 2. 2 vols. Tokai University Press. 1375 pp.
  • Cossignani, T. (2015). "Amalda hilgendorfi vezzaroi nuova ssp". Malacologia Mostra Mondiale. 89: 24–25.
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