Turricula navarchus

Turricula navarchus
	Original drawing of a shell of Turricula navarchus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Clavatulidae
Genus:	Turricula
Species:	T. navarchus
Binomial name
	Turricula navarchus; (Melvill & Standen, 1903)
Synonyms
	Pleurotoma(Gemmula) navarchus Melvill & Standen, 1903

Turricula navarchus is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.^[1]^[2]

Description

The length of the shell attains 64 mm, its diameter 18 mm.

The solid, fusiform shell contains 13 whorls of which two are in the protoconch. The shell is remarkable for its regular beaded spiral zone just below the sutures of each whorl, above which are two spiral clearly-cut grooves, the middle of the upper whorls being most beautifully obliquely costulate. The costae are terminated above by a double sulcus surrounding a narrow spiral lira. The body whorl, equalling the others in size, is almost entirely grooved and spirally lirate. The liree below are rufous-spotted. The outer lip is thin, perhaps not quite fully developed. The sinus is well marked but not deep. The columella is somewhat straight. The siphonal canal is broad and rather prolonged.^[3]

Distribution

This marine species occurs in the Persian Gulf and the Gulf of Oman.

References

^ ^a ^b Turricula navarchus (Melvill & Standen, 1903). Retrieved through: World Register of Marine Species on 4 April 2010.
^ 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.
^ Melvill c& Standen (1903), Descriptions of 68 new gastropoda from the Red Sea, the Gulf of Oman and the Northern Arabian Sea; The Annals and magazine of natural history 7th ser. v. 12 (1903)

External links

"Turricula navarchus". Gastropods.com. Retrieved 16 January 2019.
Barnard K.H. (1958), Contribution to the knowledge of South African marine Mollusca. Part 1. Gastropoda; Prosobranchiata: Toxoglossa; Annals of The South African Museum v. 44 p. 73–163

[WoRMS-1] Turricula navarchus (Melvill & Standen, 1903). Retrieved through: World Register of Marine Species on 4 April 2010.

[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] Melvill c& Standen (1903), Descriptions of 68 new gastropoda from the Red Sea, the Gulf of Oman and the Northern Arabian Sea; The Annals and magazine of natural history 7th ser. v. 12 (1903)

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