Amalda fuscolingua

Amalda fuscolingua
Shell of Amalda fuscolingua (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. fuscolingua
Binomial name
Amalda fuscolingua
Kilburn & Bouchet, 1988[1]

Amalda fuscolingua is a species of sea snail, a marine gastropod mollusc in the family Ancillariidae, the olives.[2]

Description

The length of the shell attains 57 mm.

The shell is ovate-fusiform with a blunt orthoconoid spire. The primary spire callus is thick and micro-shagreened, covering all whorls except for 1–1.5 protoconch whorls. The diameter of the first protoconch whorl is 0.92–1.06 mm (mean 0.98 mm, n = 5). The secondary callus is also thick, seamlessly merging with the parietal callus without a visible border, and extends to the suture of the antepenultimate whorl. The plication plate has 3–6 ridges, with all but the outer two being weak, and the columella is smooth.

The olivoid groove is very shallow to nearly obsolete, and the labral denticle is very small, obtuse, or absent. The upper anterior band is nearly flat, except for a weak, low ridge in the submedian area. The lower anterior band is also nearly flat and micro-shagreened.

The primary callus is orange-brown in the lower part and brown on the spire, with distinct, strongly prosocline lighter axial lines. The secondary callus is orange-brown. The body whorl cloak is a light yellowish-brown, with the olivoid band usually slightly lighter. The anterior band is orange-brown, with the upper anterior band slightly darker, matching the cloak's color, and the plication plate is white. [3]

Distribution

Pacific Ocean: off southern New Caledonia at 450 m. depth.

References

  1. ^ Kilburn R.N. & Bouchet P. (1988). The genus Amalda in New Caledonia (Olividae, Ancillinae). Bulletin du Museum National d'Histoire Naturelle 4A10 Page 277-300.. World Register of Marine Species, Retrieved 28 April 2010.
  2. ^ Amalda fuscolingua Kilburn & Bouchet, 1988. Retrieved through: World Register of Marine Species on 28 April 2010.
  3. ^ Yuri I. Kantor, Magalie Castelin, Alexander Fedosov, Philippe Bouchet (2020), The Indo-Pacific Amalda (Neogastropoda, Olivoidea, Ancillariidae) revisited with molecular data, with special emphasis on New Caledonia; European Journal of Taxonomy, [S.l.], n. 706, aug. 2020. ISSN 2118-9773  This article incorporates text from this source, which is available under the CC BY-SA 4.0 license.
  • Kilburn R.N. & Bouchet P. (1988). "The genus Amalda in New Caledonia (Olividae, Ancillinae)" (PDF). Bulletin du Muséum National d'Histoire Naturelle. Ser. 4, section A (Zoologie). 10: 288.
  • Holotype at MNHN, Paris
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