Asperdaphne perissa

Asperdaphne perissa
Original image of a shell of Asperdaphne perissa
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Raphitomidae
Genus:	Asperdaphne
Species:	A. perissa
Binomial name
Asperdaphne perissa (Hedley, 1909)
Synonyms [1]
Mangelia perissaHedley, 1909

Asperdaphne perissa is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae. ^[1]

Description

The length of the shell attains 7.4 mm, its diameter 2.9 mm.

(Original description) The thin shell is ovate-fusiform and has an acuminate spire. it contains five whorls of which two in the protoconch, the latter subulate with spiral punctate grooves. The colour of the shell is dead white except a cinnamon protoconch. The sculpture shows spiral threads predominating, amounting on the body whorl to about thirty, not impinging on a broad anal fasciole, beneath this strong and widely spaced, becoming feebler and closer below the periphery, but waxing stronger on the back of the siphonal canal. The penultimate carries six such spirals, then three, then two on the earlier whorls. The radials are stronger on the younger whorls, but decrease on the older. In the body whorl they fade away about the periphery, and in the penultimate scarcely reach across the whorl. In every case they are overridden by the spirals. The aperture is elliptical. The inner lip is overlaid by a substantial callus which, opposite the sulcus and at the base of the siphonal canal, is provided by a small but sharp tubercle. The outer lip is produced externally into a prominent varix, and beset within by a row of small tubercles. The siphonal canal is short and broad. ^[2]

Distribution

This marine species is endemic to Australia and occurs off Queensland.

References

1. Asperdaphne perissa (Hedley, 1909) . Retrieved through: World Register of Marine Species  on 5 April 2010.
2. Ch. Hedley (1909), Mollusca from the Hope Islands, north Queensland; Proceedings of the Linnean Society of New South Wales v. 34 p. 458 This article incorporates text from this source, which is in the public domain.

• Hedley, C. 1909. Mollusca from the Hope Islands, north Queensland. Proceedings of the Linnean Society of New South Wales 34(1): 420–466, pls 36–44
• Li B.-Q. [Baoquan] & Li X.-Z. [Xinzheng] (2014) Report on the Raphitomidae Bellardi, 1875 (Mollusca: Gastropoda: Conoidea) from the China Seas. Journal of Natural History 48(17-18): 999-1025

External links

• Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213-359, pls 42-56 This article incorporates text from this source, which is in the public domain.
• Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.