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Taxon profile

species

Favartia funafutiensis Ch. Hedley, 1899

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Muricidae - Muricids »  genus Favartia

Images

Favartia funafutiensis

Author: Hedley

Favartia funafutiensis

Author: Kaicher

Taxon in country check-lists*

North America: Hawaii, Oceania: Tuvalu

* List of countries might not be complete

Description

Shell small, biconical. Colour ochraceous buff, banded with chocolate, interior of aperture pale lilac. Whorls seven, sculptured each with seven prominent varices, which mount the spire continuously and obliquely. On the spire each varix presents a hollow spine above a blunt tubercle. Between and parallel to the varices are a series of imbricating lamellae five spiral ridges run round the shoulder of the shell, and undulate both the blades and the interstices of the varices. The lamellae are likewise microscopically beaded by minute spiral threads. The aperture is oblique, ovate, choked by an inner tuberculate ridge, and by the great development of the columella; the latter is arched, deeply obliquely entering, anteriorly with two incipient tubercles, and truncate below. Canal short, open, and recurved ; above it are two series of disused canals, corresponding to the ultimate and penultimate varices. Length 9, breadth 5 mm. One specimen, taken by tangles, at a depth of forty to eighty fathoms, on the western slope of Funafuti.
Hedley,C., 1899. The Mollusca of Funafuti.
We have not seen a specimen of this shell; the following is taken, verbatim, from the original description:
"Shell small, biconical. Colour ochraceous buff, banded with chocolate, interior of aperture pale lilac. Whorls seven, sculptured each with seven prominent varices, which mount the spire continuously and obliquely. On the spire each varix presents a hollow spine above a blunt tubercle. Between and parallel to the varices are a series of imbricating lamellae. Five spiral ridges run round the shoulder of the shell, and undulate both the blades and the interstices of the varices. The lamellae are likewise microscopically beaded by minute spiral threads. The aperture is oblique, ovate, choked by an inner tuberculate ridge and by the great development of the columella; the latter is arched, deeply obliquely entering, anteriorly with two incipient tubercles, and truncate below. Canal short, open, and recurved; above it are two series of disused canals, corresponding to the ultimate and penultimate varices. Length 9 mm, breadth 5 mm.
"One specimen, taken by tangles, at a depth of 40-80 fathoms [80-160 m], on the western slope of Funafuti [Atoll, southwestern Pacific]."
Radwin, G.E. & D'Attilio, A., 1976. Murex Shells of the World. An Illustrated Guide to the Muricidae.

Interchangeable taxa

This species approaches nearest to Murex nuclea (is now Favartia cyclostoma), Reeve, which it resembles both in colour and form. Judging from his account of that species, it differs by being just half the size, by having seven whorls instead of five, with seven varices apiece instead of six, and especially by being longer in proportion to breadth than the Philippine shell is. Whether these differences are constant or not I cannot say.
Hedley,C., 1899. The Mollusca of Funafuti.
Author: Jan Delsing

Similar species

Favartia cyclostoma Sowerby, 1841

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Favartia funafutiensis (Hedley, 1899)]
Data retrieved on: 23 November 2013

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