Clionella subventricosa

Clionella subventricosa
	Clionella subventricosa kaffraria
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Clavatulidae
Genus:	Clionella
Species:	C. subventricosa
Binomial name
	Clionella subventricosa; (E.A. Smith, 1877)
Synonyms[1]
	Clavatula subventricosa (E. A. Smith, 1877); Clionella subventricosa subventricosa (E. A. Smith, 1877) · accepted, alternate representation; Pleurotoma subventricosa Smith E. A., 1877 (original combination);

Clionella subventricosa is a species of sea snail, a marine gastropod mollusc in the family Clavatulidae.[1][2]

Subspecies

Clionella subventricosa kaffraria Kilburn, 1985 (Eastern Cape subspecies)
Clionella subventricosa subventricosa (E. A. Smith, 1877)

Description

The shell grows to a length of 22 mm.

The ovate, rather dark brown shell has a squat, fusiform shape. The eight whorls are slightly convex. The spiral sculpture shows shallow, well-spaced grooves. The axial ribs are rounded and number 11-14 per whorl. The shoulder angle lies below the middle of the whorl. The periphery is flattened so that body whorl is weakly biangulate. The aperture is rather large with a rather narrow, slightly notched siphonal canal. The color inside the aperture shows various shades of pale brown. The anal sinus is very shallow.[3]

Distribution

This marine species occurs from False Bay to Cape Agulhas, South Africa

References

Clionella subventricosa (E.A. Smith, 1877). Retrieved through: World Register of Marine Species.
P. Bouchet; Yu. I. Kantor; A. Sysoev; N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of Molluscan Studies. 77 (3): 273–308. doi:10.1093/mollus/eyr017.
Smith, E.A. (1877). "Diagnoses of new Species of Pleurotomidae in the British Museum". The Annals and Magazine of Natural History: Including Zoology, Botany, and Geology. vol. xix. p. 499.

Kilburn, R.N. (1985). Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 2. Subfamily Clavatulinae. Annals of the Natal Museum 26(2), 417–470
Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector's Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 150

External links

"Clionella subventricosa subventricosa". Gastropods.com. Retrieved 23 August 2011.

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[WoRMS-1] Clionella subventricosa (E.A. Smith, 1877). Retrieved through: World Register of Marine Species.

[Conoidea-2] P. Bouchet; Yu. I. Kantor; A. Sysoev; N. Puillandre (2011). "A new operational classification of the Conoidea (Gastropoda)". Journal of Molluscan Studies. 77 (3): 273–308. doi:10.1093/mollus/eyr017.

[3] Smith, E.A. (1877). "Diagnoses of new Species of Pleurotomidae in the British Museum". The Annals and Magazine of Natural History: Including Zoology, Botany, and Geology. vol. xix. p. 499.