Eudolium bairdii
| Eudolium bairdii | |
|---|---|
| |
| Specimen from the Beijing Museum of Natural History | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Tonnidae |
| Genus: | Eudolium |
| Species: | E. bairdii
|
| Binomial name | |
| Eudolium bairdii | |
| Synonyms[1] | |
|
Dolium (Eudolium) bituminatum Martin, 1933 | |
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
[edit]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
[edit]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
[edit]Minimum recorded depth is 17 m and maximum recorded depth is 823 m.[4]
References
[edit]- ^ a b c d 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.
- ^ "Eudolium bairdii (A.E.Verrill & S.Smith, 1881)". Global Biodiversity Information Facility. Retrieved 22 January 2021.
- ^ Palomares ML, Pauly D, eds. (2019). "Eudolium bairdii" in SeaLifeBase. December 2019 version.
- ^ a b c 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.
- ^ a b 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.
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Media related to Eudolium bairdii at Wikimedia Commons