Amalda montrouzieri is a species of sea snail, a marine gastropod mollusc in the family Ancillariidae, the olives.[2]
| Amalda montrouzieri | |
|---|---|
.jpeg)
| |
| Shell of Amalda montrouzieri (holotype at MNHN, Paris) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Ancillariidae |
| Genus: | Amalda |
| Species: | A. montrouzieri
|
| Binomial name | |
| Amalda montrouzieri (Souverby, 1860)[1]
| |
| Synonyms | |
|
Ancillaria montrouzieri Souverbie, 1860 (original combination) | |
Description
editThe length of the shell attains 41.5 mm.
The shell is ovate-fusiform with a cyrtoconoid spire. The primary spire callus is thick and weakly micro-shagreened, covering all the whorls, including most of the protoconch, making precise measurements difficult. It features weak spiral lirae, with 8–10 on the penultimate whorl. The secondary callus is moderately thick, forming an extensive pad on the right side of the spire. The plication plate has 2–4 ridges, typically 3. The olivoid groove ranges from shallow to moderately deep, while the denticle of the outer lip is weak and rounded. The upper anterior band is very slightly convex, almost flat, and the lower anterior band is flat and smooth.
The shell color ranges from uniform white to chestnut brown. In darker specimens, the primary spire callus and upper anterior band are darker, while the olivoid band is lighter than the body whorl cloak, and the plication plate is white. [3]
Distribution
editAlmada montrouzieri is typically distributed 10 meters (33 ft) to 70 meters (230 ft) below sea level in the areas around Southern New Caledonia, with sightings as deep as 280 meters (920 ft) attested. It has also been anecdotally attested in or around the Loyalty Islands, Fiji, the Ryukyu Islands, and the Philippines. [2]
References
edit- ^ Souverby J. (1860). Descriptions d'espèces nouvelles de l'Archipel calédonien. J.Conchyl. 8:207. World Register of Marine Species, Retrieved 28 April 2010.
- ^ a b Amalda montrouzieri (Souverby, 1860). Retrieved through: World Register of Marine Species on 28 April 2010.
- ^ 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 in the public domain.
- Souverbie, M., 1860. Descriptions d'espèces nouvelles de l'Archipel calédonien. Journal de Conchyliologie 8: 311–326
- Fischer-Piette, E., 1950. Listes des types décrits dans le Journal de Conchyliologie et conservés dans la collection de ce journal. Journal de Conchyliologie 90: 8–23
External links
edit- Souverbie, M., 1860. Description d'espèce nouvelles de l'Archipel calédonien. Journal de Conchyliologie 8: 204–207
- 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: 278.