Nassarius speciosus

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Nassarius speciosus
Nassarius speciosus 001.jpg
Shell of Nassarius speciosus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Nassariidae
Genus: Nassarius
Species:
N. speciosus
Binomial name
Nassarius speciosus
(A. Adams, 1852)
Synonyms [1]
  • Alectrion plicosa(Dunker, 1846)
  • Buccinum plicosumDunker, 1846 (non Menke, 1830)
  • Nassa plicosa(Dunker, 1846)
  • Nassa speciosaA. Adams, 1852 (original combination)
  • Nassarius (Niotha) speciosus(A. Adams, 1852)
  • Nassarius plicosus(Dunker, 1846)
  • Phos plicosus(Dunker, 1846)

Nassarius speciosus, common name the purple-lipped dogwhelk or the splendid nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks. [1]

Contents

Description

The length of the shell varies between 20 mm and 35 mm. [2]

The shell is small and robust, featuring strong, widely spaced axial ribs crossed by finer, closely spaced spiral cords. The whorls are shouldered, with the ribs creating nodules along the shoulder. On the latter part of the body whorl, the ribs become weaker. The aperture has a distinct siphonal notch, and the inner lip shows a well-developed callus that extends over both the columella and parietal region. The outer lip has a subterminal external thickening and low internal ridges. [2]

The shell is whitish to buff, with paler axial ribs. The aperture and callus are white, while the siphonal notch is a dark purplish-brown when fresh. The surface of a living shell is often covered by a khaki-brown, periostracum-like layer formed by encrusting organisms. [2]

Distribution

This marine species is endemic to South Africa and occurs off the West coast to Agulhas Bank (southern Namibia to western Transkei), in shallow water to 130 m, possibly deeper. [2]

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<i>Nassarius distortus</i> Species of gastropod

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<i>Nassarius olivaceus</i> Species of gastropod

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<i>Nassarius papillosus</i> Species of gastropod

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<i>Nassarius pullus</i> Species of gastropod

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<i>Nassarius siquijorensis</i> Species of gastropod

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<i>Nassarius dorsatus</i> Species of gastropod

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<i>Nassarius conoidalis</i> Species of gastropod

Nassarius conoidalis, common name the cone-shaped Nassa or the jewelled dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails.

<i>Nassarius pyrrhus</i> Species of gastropod

Nassarius pyrrhus, common name the red-banded nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.

<i>Nassarius gayii</i> Species of gastropod

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<i>Nassarius subspinosus</i> Species of gastropod

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<i>Nassarius vinctus</i> Species of gastropod

Nassarius vinctus, common name the violet-mouthed dog-whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails or dog whelks.

References

  1. 1 2 Nassarius speciosus . Retrieved through: World Register of Marine Species  on 30 October 2012.
  2. 1 2 3 4 Herbert, D.G., Jones, G.J. & Atkinson, L.J. (2018). Phylum Mollusca. In: Atkinson, L.J. and Sink, K.J. (eds) Field Guide to the Offshore Marine Invertebrates of South Africa. Pretoria: Malachite Marketing and Media. p. 289. doi:10.15493/SAEON.PUB.10000001. ISBN   978-1-86868-098-6 . Retrieved 17 October 2024.{{cite book}}: CS1 maint: multiple names: authors list (link) Creative Commons by-sa small.svg  This article incorporates textfrom this source, which is available under the CC BY-SA 4.0 license.
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