Isodaphne perfragilis

Isodaphne perfragilis
	Original image of a shell of Isodaphne perfragilis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Raphitomidae
Genus:	Isodaphne
Species:	I. perfragilis
Binomial name
	Isodaphne perfragilis; (Schepman, 1913)
Synonyms
	Daphnella perfragilisSchepman, 1913

Last updated September 19, 2021

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

Description

The length of the shell attains 18.5 mm, its diameter 7.5 mm.

(Original description) The white, fusiform shell has a moderately long siphonal canal. It is very thin, fragile and hyaline. It contains eight whorls, of which about 2½ form the protoconch, with convex whorls and criss-cross sculpture. The subsequent whorls are convex, separated by a deep, linear suture, the upper ones are strongly angular at the shoulder, the angle however is fainter on lower whorls and nearly disappears on the body whorl. A second prominent liration is visible on upper whorls, but becomes likewise fainter. Moreover, the shell is crossed by numerous, fine, raised, spiral striae and finer axial ones, producing a fine cancellation. On the siphonal canal the spirals are stronger. The aperture is oval, angular above, with a rather short, moderately wide siphonal canal below. The peristome is broken, according to growth lines with a shallow sinus above, roundedly angular at the entrance of the siphonal canal. The columellar margin is convex at the body whorl, then nearly straight, slightly curved to the left, with a thin layer of enamel. ^[2]

Distribution

This marine species occurs in the Makassar Strait and in the Ceram Sea, Indonesia at depths between 835 m - 2029 m

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References

1 2 Isodaphne perfragilis (Schepman, 1913) . Retrieved through: World Register of Marine Species on 5 April 2010.
↑ Schepman, 1913. The prosobranchia of the Siboga expedition. Part IV -V - VI: Toxoglossa This article incorporates text from this source, which is in the public domain.

External links

Sysoev, Alexander (1997). Crosnier, A.; Bouchet, P. (eds.). "Mollusca Gastropoda: New deep-water turrid gastropods (Conoidea) from eastern Indonesia" (PDF). Résultats des Campagnes MUSORSTOM. Mém. Mus. natn. Hist. nat. 16 (172): 325–355. ISBN 2-85653-506-2 . Retrieved 11 October 2014.
Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.

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[WoRMS-1] 1 2 Isodaphne perfragilis (Schepman, 1913) . Retrieved through: World Register of Marine Species on 5 April 2010.

[2] Schepman, 1913. The prosobranchia of the Siboga expedition. Part IV -V - VI: Toxoglossa This article incorporates text from this source, which is in the public domain.

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