Nassarius vinctus

Nassarius vinctus
	Shell of Nassarius vinctus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Nassariidae
Genus:	Nassarius
Species:	N. vinctus
Binomial name
	Nassarius vinctus; (Marrat, 1877)
Synonyms
	Nassa (Amycla) circumtexta E. von Martens, 1904; Nassa (Tritia) trifasciata A. Adams, 1853; Nassa aenigmatica W. H. Turton, 1932; Nassa analogica G. B. Sowerby III, 1903; Nassa circumtexta E. von Martens, 1904 ·; Nassa trifasciata A. Adams, 1853 (invalid: secondary junior homonym of Buccinum trifasciatum Gmelin, 1791); Nassa vincta Marrat, 1877 (original combination); Nassarius (Telasco) vinctus (Marrat, 1877); Nassarius analogicus (G. B. Sowerby III, 1903); Nassarius circumtextus (E. von Martens, 1904); Nassarius trifasciatus (A. Adams, 1853);

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.^[1]

Description

The length of the shell attains 22 mm.^[2]

The shell is small, with a relatively elongated spire and weakly convex whorls. The periphery is rounded, and the sculpture is variable, often reticulate. It consists of low axial ribs crossed by broad, flat spiral cords with narrow intervals, though the axial ribs may be weak or absent in some specimens. The inner lip features a thin, glossy callus that extends over the parietal region. The outer lip is not noticeably thickened and may be smooth internally or display weak, in-running ridges. The siphonal notch is wide and shallow.^[2]

Fresh specimens are reddish-brown to purplish-brown, typically featuring pale spiral bands. Axial ribs, when present, are paler. The inner lip and interior of the aperture are violet, though the color intensity fades over time. The shell is often encrusted with marine organisms, and its surface frequently becomes chalky or etched.^[2]

Distribution

This marine species is endemic to South Afriuca and occurs off the West coast and Agulhas Bank (northern Namibia to western Transkei) at depths between 10 m and 150 m.^[2]

References

^ ^a ^b Nassarius vinctus (Marrat, 1877). 22 October 2024. Retrieved through: World Register of Marine Species.
^ ^a ^b ^c ^d 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) This article incorporates text from this source, which is available under the CC BY-SA 4.0 license.

Marrat, F. (1877). On some proposed new forms in the genus Nassa. Liverpool: privately published. p. 12.
Turton, W.H. (1932). The marine shells of Port Alfred S. Africa. London: Humphrey Milford. p. 58.
Marais J.P. & R.N. Kilburn (2010) Fasciolariidae. pp. 106–137, in: Marais A.P. & Seccombe A.D. (eds), Identification guide to the seashells of South Africa. Volume 1. Groenkloof: Centre for Molluscan Studies. 376 pp.
Aiken, R. & Seccombe, A. (2019). "Five new Gastropoda (Casmaria, Sassia, Kilburnia, Quasimitra and Calliostoma) from the eastern seaboard of southern Africa and a revision of Mitra boswellae". The Festivus. 51 (3): 198–217. doi:10.54173/F513198.{{cite journal}}: CS1 maint: multiple names: authors list (link)
Martens, E. von (1904). Die beschalten Gastropoden der deutschen Tiefsee-Expedition 1898–1899. A. Systematisch-geographischer Teil. Wissenschaftliche Ergebnisse der deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia". p. 27.

External links

Sowerby, G.B. III (1903). "Descriptions of new species of Nassa, Purpura, Latirus, Voluta, Conus, Stomatella, and Spondylus". Journal of Malacology. 10 (3): 73–77.
Adams, A. (1852–1853). "Catalogue of the species of Nassa, a genus of gasteropodous Mollusca belonging to the family Buccinidae, in the collection of Hugh Cuming, Esq., with the description of some new species". Proceedings of the Zoological Society of London. 1853 (19): 113.
Cernohorsky, W.O. (1984). "Systematics of the family Nassariidae (Mollusca: Gastropoda)". Bulletin of the Auckland Institute and Museum. 14 (i–iv): 1–356.
Adam, W. & Knudsen, J. (1984). "Révision des Nassariidae (Mollusca: Gastropoda Prosobranchia) de l'Afrique occidentale" (PDF). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. 55 (9).{{cite journal}}: CS1 maint: multiple names: authors list (link)

[WoRMS-1] Nassarius vinctus (Marrat, 1877). 22 October 2024. Retrieved through: World Register of Marine Species.

[Herbert-2] 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) This article incorporates text from this source, which is available under the CC BY-SA 4.0 license.

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