Daphnella arcta

Daphnella arcta
	Image of a shell of Daphnella arcta
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Raphitomidae
Genus:	Daphnella
Species:	D. arcta
Binomial name
	Daphnella arcta; (Smith E. A., 1884)
Synonyms[1]
	Daphnella (Daphnella) arcta (Smith, 1884); Mangilia arcta Smith E.A., 1884; Pleurotoma arcta Smith E. A., 1884;

Daphnella arcta is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.[1]

Description

This is a narrow cytharoid species, evidently a near ally of the protean Paraclathurella gracilenta, Reeve, 1843. The granulately cancellate third whorl hints at identity with this, and also the form of the aperture and outer lip. But the mature shell is more abbreviate and considerably smaller. As E.A. Smith points out, there is much variation in the colour; some specimens are white, others reddish, and we have examples from Hong Kong of a dark greenish brown. [2]

Distribution

This marine species occurs in the Persian Gulf and off Japan.

References

Daphnella arcta (Smith E. A., 1884). Retrieved through: World Register of Marine Species on 5 April 2010.
J.C. Melvill (1917), A revision of the Turridae (Pleurotomidae) occurring in the Persian Gulf, Gulf of Oman and North Arabian Sea, as evidenced mostly through the results of dredgings carried out by Mr. F. W. Townsend, 1893-1914; Proceedings of the Malacological Society of London vol. 12, 1917 This article incorporates text from this source, which is in the public domain.

External links

Smith E.A. (1884). Diagnoses of new species of Pleurotomidae in the British Museum. Annals and Magazine of Natural History. ser. 5, 14: 317-329
Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.

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[WoRMS-1] Daphnella arcta (Smith E. A., 1884). Retrieved through: World Register of Marine Species on 5 April 2010.

[2] J.C. Melvill (1917), A revision of the Turridae (Pleurotomidae) occurring in the Persian Gulf, Gulf of Oman and North Arabian Sea, as evidenced mostly through the results of dredgings carried out by Mr. F. W. Townsend, 1893-1914; Proceedings of the Malacological Society of London vol. 12, 1917 This article incorporates text from this source, which is in the public domain.