Amalda tankervillii is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
| Amalda tankervillii | |
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| Amalda tankervillii shell | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Ancillariidae |
| Genus: | Amalda |
| Species: | A. tankervillii
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| Binomial name | |
| Amalda tankervillii | |
| Synonyms[2] | |
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This gastropod (Swainson, 1825) is probably named for Charles Bennet, 4th Earl of Tankerville (or less probably his son).[3]
Description
editThe size of the shell varies between 25 mm and 91 mm.
It conchologically quite different from the other species included in the genus. It is indeed somewhat different from Indo-Pacific species in being thin, broadly oval, with a large inflated last whorl and a very low spire. [4]
The shell is ovately fusiform, with a pale yellowish or dull flesh color and an acuminated spire. Just above the suture is a distinct elevated line. The upper part of the body whorl is encircled by a broad callous belt that covers about two-thirds of the whorl. Remarkably, this belt widens as the shell ages.
Below this belt is a deeply impressed line that ends in a sharp, projecting tooth near the lower edge of the outer lip. Below the line, two additional belts are present, with the upper belt featuring a slightly raised upper edge and a central depression. A deep groove sits just above the columellar varix, which is smooth and has a single groove.
The aperture is somewhat blunt at the top and notched at the base. The outer lip has a smooth edge with a single tooth near its lower part. [5]
Distribution
editThis species occurs in the Caribbean Sea in shallow waters (6 mm to 70 mm) off Venezuela and down to Brasil. [4]
References
edit- ^ Swainson W.J. (1823). A monograph of the genus Ancillaria, with descriptions of several new species. Quarterly Journal of Science, Literature, and the Arts 18 Page 272-289.. World Register of Marine Species, Retrieved 28 April 2010.
- ^ Rosenberg, G. (2015). Amalda tankervillii (Swainson, 1825). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=580824 on 2016-04-03
- ^ Biographical Etymology of Marine Organism Names. Retrieved 3 March 2016
- ^ a b 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
- ^ Sowerby G.B. I (1830). Species Conchylirum or concise original descriptions and accompanied by figures of all the species of Recent shells, with their varieties. G.B. Sowerby, London.
This article incorporates text from this source, which is in the public domain.
External links
edit
- "Amalda tankervillii". Gastropods.com. Retrieved 15 January 2019.