''Turritella cingulifera'' is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
sea snail, a marine
gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Turritellidae.
It is placed either in subgenus ''Kurosioia'' or ''Haustator''.
Distribution
This marine species is found in the
sublittoral zone of
Australian waters, the
Indo-Pacific Region and the
East China Sea.
Description
The slender conical shell is whitish to yellowish brown with a chestnut band next to the suture. The shell sometimes has undulating, transverse chestnut lines or a central chestnut band made up of two or three close parallel lines on the
body whorl.
The shell has about twelve
whorls
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
Whorls in nature
File:Photograph and axial plane floral ...
. They are contracted between the deep suture and then rounded with a number of thin, elevated, spiral striae. The length of the shell is 1,90 cm (.75-inch).
[Tryon G. W. (1886). '']Manual of Conchology
George Washington Tryon Jr. (20 May 1838 – 5 February 1888) was an American malacologist who worked at the Academy of Natural Sciences in Philadelphia.
Biography
George Washington Tryon was the son of Edward K. Tryon and Adeline Savidt. ...
'' 8
198
References
* Sowerby, G. B., I. 1825. ''A catalogue of the shells contained in the collection of the late Earl of Tankerville, arranged according to the Lamarckian conchological system; together with an appendix, containing descriptions of many new species''. London: E. J, available online at https://books.google.com/books?id=TXqqeuJUQygC page(s): p. 56 + Appendix p. 14
* Gould, A.A. (1861) ''Description of new shells collected by the United States North Pacific Exploring Expedition.'' Proceedings of the Boston Society of Natural History 7: 382–389; 400–409. page(s): 386
* Garrard, T. A. (1972) ''A revision of Australian Recent and Tertiary Turritellidae (Gastropoda, Mollusca),'' J. Malac. Soc. Aust., 2(3): 267-338
External links
*
{{DEFAULTSORT:Turritella Cingulifera
Turritellidae
Gastropods described in 1825
Taxa named by George Brettingham Sowerby I