Sinum cymba

Sinum cymba
Five views of a shell of Sinum cymba
Apertural view of a shell of Sinum cymba
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Naticidae
Genus:	Sinum
Species:	S. cymba
Binomial name
Sinum cymba (Menke, 1828)
Synonyms [1]
Natica cymba Menke, 1828 Sigaretus maximus Philippi, 1844

Sinum cymba, common name the concave ear moon snail, is a species of predatory sea snail, a marine gastropod mollusk in the family Naticidae, the moon snails. ^[1]

It was classified by the German malacologist Karl Theodor Menke in 1828 with the name Natica cymba.

Description

Shell with a wide opening, brown and smooth; with an external coloration of purplish-brown to pale, gray or white, on a surface with a waxy shine, provided with fine spiral lines. The spiral is low and up to 7 centimeters long, when developed; ending in a broad turn. There is no umbilical underneath. The outer lip is thin and angular. ^{[2] [3] [4] [5]}

The species lives in cold, shallow waters. ^[6]

Distribution

It is common in the eastern Pacific Ocean, on the coasts of South America to Chile, including the Galápagos, and southern Central America, in Panama. ^{[2] [3]}

Subfamily Sininae

The Naticidae of the subfamily Sininae have a low spiral and a wide aperture or so wide that they are mistaken for abalones without perforations; they have auriform (ear -shaped) shells. They have a very small horny operculum.

References

1. Sinum cymba (Menke, 1828) . WoRMS (2009). Sinum concavum (Lamarck, 1822). Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575242 on 26 November 2012 .
2. Isermann, Lukas; Gavras, Konstantin (2021-03-10). "archiveRetriever: Retrieve Archived Web Pages from the 'Internet Archive'". CRAN: Contributed Packages. Retrieved 2024-11-10.
3. Peter, P. (2002). The Photographic Recognition Guide to Seashells of the World (2nd ed.). London, England: Dorling Kindersley. p. 78. ISBN   0-7894-8987-2.
4. Wye, Kenneth R. (1989). The Mitchell Beazley pocket guide to shells of the world. London: M. Beazley. ISBN   978-0-85533-738-4.
5. Ferrario, Marco (1992). Guía del Coleccionista de Conchas[Shell Collectors' Guide] (in Spanish) (1st ed.). Barcelona, Spain: Editorial de Vecchi. p. 83. ISBN   84-315-1972-X.
6. Abbott, R. Tucker; Dance, S. Peter (1982). Compendium of seashells: a color guide to more than 4,200 of the world's marine shells (1st ed.). New York: E.P. Dutton. ISBN   978-0-525-93269-7.

External links

• Three views of the shell of Sinum cymba (Panama), on Flickr, by Pei-Jan Wang.
• "Sinum concavum". Gastropods.com. Retrieved 4 May 2011.