Eudolium bairdii

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Eudolium bairdii
Eudolium bairdii IMG 5347 Beijing Museum of Natural History - NHM of Guangxi - Gulf of Tonkin collection.jpg
Specimen from the Beijing Museum of Natural History
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Tonnidae
Genus: Eudolium
Species:
E. bairdii
Binomial name
Eudolium bairdii
(Verrill & Smith in Verrill, 1881) [1]
Synonyms [1]

Dolium (Eudolium) bituminatumMartin, 1933
Dolium (Eudolium) crosseanum var. solidior Dautzenberg & Fischer, 1906
Dolium bairdiiVerrill & Smith in Verrill, 1881
Dolium bayrdi 'Verrill'Paetel, 1887
Dolium biornatumTate, 1894
Eudolium inflatumKuroda & Habe, 1952
Eudolium kuroharaiAzuma, 1960
Eudolium lineatumOsima, 1943
Morio lineataSchepman, 1909

Contents

Eudolium bairdii, common name Baird's bonnet, is a species of large sea snail, a marine gastropod mollusk in the family Tonnidae, the tun shells. [1]

Distribution

This marine species has a circumtropical distribution in the Atlantic, Indian, and Pacific Oceans. [1] [2] [3] The species is recorded recorded off South and East coast of South Africa at depths between 100 m and 500 m. [4]

Description

The maximum recorded shell length is 76 mm. [4]

The shell is thin and globose, with a prominent spire and rounded whorls, accompanied by a strongly indented suture. Its surface is adorned with well-defined, narrow spiral cords of alternating strength. In adult specimens, the outer lip is thickened and flares outward, with a finely toothed inner edge. The anterior end features a pronounced siphonal notch. [5]

The colour of the shell ranges from buff to pale brown, with the primary spiral cords being a darker brown. The spire may exhibit a subtle grey-blue tinge, while the tip of the spire (protoconch/apex), if present, is distinctly brown in color. [5]

Habitat

Minimum recorded depth is 17 m and maximum recorded depth is 823 m. [4]

References

  1. 1 2 3 4 Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2021). "Eudolium bairdii (Verrill & S. Smith, 1881)". MolluscaBase. World Register of Marine Species . Retrieved 22 January 2021.
  2. ↑ "Eudolium bairdii (A.E.Verrill & S.Smith, 1881)". Global Biodiversity Information Facility . Retrieved 22 January 2021.
  3. ↑ Palomares ML, Pauly D, eds. (2019). "Eudolium bairdii" in SeaLifeBase. December 2019 version.
  4. 1 2 3 Welch, John J. (2010). "The "Island Rule" and deep-sea gastropods: re-examining the evidence". PLOS ONE. 5 (1) e8776. doi: 10.1371/journal.pone.0008776 . PMC   2808249 . PMID   20098740.
  5. 1 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. 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.
Shell of Eudolium bairdii Eudolium bairdii 003.jpg
Shell of Eudolium bairdii

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