''Tegula mariana'' 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 ...

Tegulidae Tegulidae is a family of small to large sea snails, marine gastropod mollusks in the superfamily Trochoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Bouchet, P. (2013). Tegulidae Kuroda, Habe & Oyama, 1971. Access ...

.WoRMS (2012). ''Tegula mariana'' Dall, 1919. Accessed through:

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialis ...

at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575632 on 2012-09-01

Description

The height of the shell varies between 8.9 mm, its diameter 10.5 mm. The shell has a shiny surface. Its color is dingy white, with broad radiating flames of brown or red above irregularly maculated below, sometimes nearly unicolored, pinkish, with the lirae of the base articulated with red and white dots. The

spire A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spires a ...

is either conic or depressed. The sutures are either simple, linear, or somewhat canaliculate. There is a concavity in the subsutural area. The about 5 whorls are spirally transversed by excessively minute spiral striae. The body whorl has an acute nodulous carina at the periphery, and another angulation or keel at the middle of the upper surface of the whorl and continued upon the spire, and which is usually nodose on the body whorl. There is usually, too, a third ridge or carina, generally coarsely nodose, between the two already described. The base of the shell is more or less convex, generally shows microscopic concentric striae under a lens, and has about 5 low, narrow, separated spiral lirulae. The

columella Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the wo ...

and the inside of the umbilicus are either green or white. This species is thus characterized by the two angulations on the body whorl and the fine, spiral sculpture between the two keels.Hertlein & Strong, Marine Mollusks collected during the "Askoy" expedition to Panama, Colombia and Ecuador in 1941; Bulletin of the America: 2n museum of Natural History, v. 107 (1955)
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Distribution

This species occurs in the Pacific Ocean and is common under rocks at high-tide level from

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

, Mexico, to

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = National seal , national_motto = "Firm and Happy f ...

References

External links

To GenBank (2 nucleotides; 1 proteins)

To USNM Invertebrate Zoology Mollusca Collection

To World Register of Marine Species
* {{Taxonbar, from=Q3710081

mariana Mariana may refer to: Literature * ''Mariana'' (Dickens novel), a 1940 novel by Monica Dickens * ''Mariana'' (poem), a poem by Alfred Tennyson, 1st Baron Tennyson * ''Mariana'' (Vaz novel), a 1997 novel by Katherine Vaz Music *"Mariana", a so ...

Gastropods described in 1919