Turritella declivis
| Turritella declivis | |
|---|---|
| File:Turritella declivis 001.jpg | |
| Shell of Turritella declivis | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Family: | Turritellidae |
| Genus: | Turritella |
| Species: | T. declivis
|
| Binomial name | |
| Turritella declivis Adams & Reeve, 1850
| |
| Synonyms | |
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Turritella declivis is a species of sea snail, a marine gastropod mollusk in the family Turritellidae.[1]
Description
[edit | edit source]The shell can reach a maximum length of 100 mm, though it typically measures less than 65 mm.
The shell is long and slender, with whorls that are flattened or slightly concave, giving them an inwardly hollowed appearance. The base of the body whorl is angular, and the aperture is small, slightly flaring at the base. The surface is marked by fine, curved axial growth lines that fade on the lower part of each whorl. There is no spiral sculpture present. The outer lip is thin and often shows signs of damage.
The shell is cream-colored, featuring a broad brown spiral band around the mid-whorl. In some specimens, the shell surface may be etched, causing the coloration to appear less distinct. Juveniles often display brown spots just below the suture. [2]
Distribution
[edit | edit source]This marine species is endemic to South Africa. It is common on the Agulhas Bank (Kei River to False Bay), in places hugely abundant and dominating the marine benthos; also found on West Coast, but evidently in much lower numbers
References
[edit | edit source]- ^ Vos, C. (2014). Turritella declivis Adams & Reeve in Reeve, 1849. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=731296 on 2014-06-12
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).File:Creative Commons by-sa small.svg This article incorporates text from this source, which is available under the CC BY-SA 4.0 license.
- Adams A. & Reeve L. (1850) Mollusca [in] Adams A. (ed.) The zoology of the voyage of H. M. S. Samarang under the command of Captain Sir Edward Belcher, C. B., F. R. A. S., F. G. S., during the years 1843-1846. Reeve, Benham & Reeve: London. Parts I-III
- Herbert, D. G. (2013) Turritella declivis Adams & Reeve, in Reeve, 1849 (Mollusca: Gastropoda) – a South African not an Australian species, and a characteristic component of the Agulhas Bank benthos. African Zoology 48(2):412-417 page(s): 412–417
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