Anachis costellata

Anachis costellata
Shell of Anachis costellata (specimen at the Natural History Museum Rotterdam)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Columbellidae
Genus:	Anachis
Species:	A. costellata
Binomial name
Anachis costellata (Broderip & G. B. Sowerby I, 1829)
Synonyms
Columbella costellataBroderip & G. B. Sowerby I, 1829 (original combination)

Anachis costellata is a species of sea snail in the family Columbellidae, the dove snails. ^[1]

The variety Anachis costellata var. pachydermaP. P. Carpenter, 1857 is a synonym of Anachis scalarina (G. B. Sowerby I, 1832)

Description

The length of the shell attains 15 mm.

(Described by P.P. Carpenter) The Mazatlán shells divide themselves with tolerable accuracy into two sets: the one is characterized by a coarse lamellar epidermis, while the other has one that is very thin, smooth, or rarely scaly, closely adherent, and displays the rich chestnut color of the shell. They differ from Anachis scalarina in their very much smaller size, chestnut markings, flattened whorls, and the adherence of the epidermis.

Distinguishing Features: Should the epidermal differences prove constant, they may be the best characters to recognize the species, as the features recorded by Sowerby I are subject to great variation. The decussation of the interspaces is generally only seen on the spire in the young shell; the spiral striae at the base are sufficiently conspicuous. ^[2]

Distribution

This species occurs in the Gulf of California and in the Pacific Ocean off Mexico, Panama and Ecuador.

References

1. Anachis costellata . 15 June 2025. Retrieved through: World Register of Marine Species .
2. Carpenter, P.P. (1857). Catalogue of the collection of Mazatlan Mollusca in the British Museum collected by Frederick Reigen. London: British Museum. p. 527. Retrieved 15 June 2025. This article incorporates text from this source, which is in the public domain .

• Ramírez, R.; Paredes, C.; Arenas, J. (2003). Moluscos del Perú. Revista de Biologia Tropical. 51(supplement 3): 225-284.

External links

• Broderip, W. J. & Sowerby, G. B. I. (1832–1833). "Descriptions of new species of shells from the collection formed by Mr. Cuming on the western coast of South America, and among the islands of the southern Pacific Ocean". Proceedings of the Committee of Science and correspondence of the Zoological Society of London. Part 2: 116.