Asperdaphne walcotae

Asperdaphne walcotae
Drawing of a shell of Asperdaphne walcotae (holotype)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Raphitomidae
Genus:	Asperdaphne
Species:	A. walcotae
Binomial name
Asperdaphne walcotae (G.B. Sowerby III, 1893)
Synonyms [1]
Clathurella walcotae(Sowerby III, 1893). Drillia walcotaeSowerby III, 1893 Pleurotoma walcotaeSowerby III, 1893

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

Subspecies: Asperdaphne walcotae pallidaSowerby III, 1896

Description

The length of the shell attains 20 mm, its diameter 10 mm.

(Original description in Latin) The turreted shell is relatively short, rough, and pale. It is marked anteriorly by a pale purple band. The spire itself is turreted, sharp, and graduated The suture is inconspicuous. It consists of eight whorls that are spirally striated throughout. Each whorl is angled above its middle, convex below the angle, and features longitudinal ribs (approximately 12 on the body whorl). It is also marked by spiral ridges (four on the penultimate whorl). The body whorl is nearly equal in height to the spire. It is slightly convex below the angle, and contracts towards the base, terminating in a short beak. The aperture is rather wide and has a purple-gray throat. The siphonal canal is very short and slightly curved backward. The columella is relatively straight, and the outer lip is sharp and finely crenulated, featuring a deep, fairly wide sinus at the top. ^[2]

Distribution

This marine species is endemic to Australia and occurs in the waters off the coast of South Australia.

References

1. Asperdaphne walcotae (G.B. Sowerby III, 1893) . Retrieved through: World Register of Marine Species  on 5 April 2010.
2. Sowerby, G.B. (3rd) 1893. Descriptions of fifteen new species of shells of the family Pleurotomidae. Proceedings of the Zoological Society of London 1893: 487–492 This article incorporates text from this source, which is in the public domain .

• Powell, A.W.B. 1966. The molluscan families Speightiidae and Turridae, an evaluation of the valid taxa, both Recent and fossil, with list of characteristic species. Bulletin of the Auckland Institute and Museum. Auckland, New Zealand 5: 1–184, pls 1–23

External links

• Verco, J.C. 1909. Notes on South Australian marine Mollusca with descriptions of new species. Part XII. Transactions of the Royal Society of South Australia 33: 293–342
• Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295
• 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 .