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species

Fusivoluta profundorum P. Bail & N. Puillandre, 2012

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Volutidae - volutes »  genus Fusivoluta

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Fusivoluta profundorum

Author: Bail & Puillandre

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Description

Diagnosis: Shell of moderate size, fusiform, with high spire. Protoconch bulbous, with 2-3 whorls. Teleoconch sculptured with axial ribs. Columella without plaits. Aperture with flared outer lip when adult. Fasciole indistinct. Siphonal notch absent. Thin periostracum and horny operculum present.

Description: Adult shell of moderate size for genus (length 45-55 mm), light, fusiform. Surface dull covered by thin, adherent, gray periostracum. Protoconch small (average width: 2 mm), with 2 whorls, first whorl flattened, subsequent very convex. Transition protoconch-teleoconch sharp. Spire moderately high, forming average of 48% of total length of shell. Protoconch and abapical part of spire usually eroded. Teleoconch of 5 whorls, last slightly inflated. Suture indented. Sculpture of axial ribs (14-15 on antepenultimate whorl), blunt or knobbed on some specimens, prominent onto spire, then becoming obsolete on half abapical part of penultimate whorl and on whole last whorl. Spiral sculpture of numerous, regularly spaced, minute cords covering whole teleoconch, becoming weaker on last whorl, crossed by faint axial lirae giving cancellate appearance. Aperture large, semi-circular, with outer lip thin and anteriorly flared. Columella slightly sigmoid without plaits. Anterior canal very short without siphonal notch. Surface of teleoconch and aperture gray-white, anterior part of columella and inner edge of outer lip slightly tinged with orange.
Source: Bail P. & Puillandre N. (2012) A new species of Fusivoluta Martens, 1902 (Gastropoda: Volutidae) from Mozambique.
Author: Jan Delsing

Links and literature

https://science.mnhn.fr/institution/mnhn...
Muséum National d'Histoire Naturel – Collection - Holotype

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