|
Skeneinae
Turbinidae, the turban snails, are a family of small to large marine gastropod molluscs in the superfamily Trochoidea.Bouchet, P. (2014). Turbinidae Rafinesque, 1815. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=503 on 2014-07-28 Description Turbinidae have a strong, thick calcareous operculum readily distinguishing them from the somewhat similar Trochidae or top snails, which have a corneous operculum. This strong operculum serves as a passive defensive structure against predators that try to enter by way of the aperture or that would break the shell at the outer lip. These operculum are rounded ovals that are flat with a swirl design on one side and domed on the other. They are known as Pacific cat's eye or Shiva eye shells or mermaid money, and are used for decorative purposes. Etymology The common name ''turban snail'' presumably refers to the shell's similarity in appearance to a turban. However, the scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turban
A turban (from Persian دولبند‌, ''dulband''; via Middle French ''turbant'') is a type of headwear based on cloth winding. Featuring many variations, it is worn as customary headwear by people of various cultures. Communities with prominent turban-wearing traditions can be found in the Indian subcontinent, Southeast Asia, the Arabian Peninsula, the Middle East, the Balkans, the Caucasus, Central Asia, North Africa, West Africa, East Africa, and amongst some Turkic peoples in Russia as well as Ashkenazi Jews. A keski is a type of turban, a long piece of cloth roughly half the length of a traditional "single turban", but not cut and sewn to make a double-width "Double Turban" (or Double Patti). Wearing turbans is common among Sikh men, and infrequently women. They are also worn by Hindu monks. The headgear also serves as a religious observance, including among Shia Muslims, who regard turban-wearing as ''Sunnah mu’akkadah'' (confirmed tradition). The turban is also the tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angariinae
''Angaria'' is a genus of sea snails, marine gastropod mollusks in the family Angariidae. ''Angaria'' is the only genus in the family Angariidae. Taxonomy According to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005, ''Angaria'' belongs in the subfamily Angariinae, within the family Turbinidae. Williams ''et al.'' (2008) moved ''Angaria'' to the family Angariidae within the newly created superfamily Angarioidea.Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined". ''Zoologica Scripta'' 37(5): 483-506. Species Species in the genus ''Angaria'' include: * '' Angaria aculeata'' (Reeve, 1843) * '' Angaria carmencita'' Günther, 2007 * †'' Angaria complanata'' Gain, Belliard & Le Renard, 2018 * †'' Angaria constantinensis'' Gain, Belliard & Le Renard, 2018 * '' Angaria delphinus'' (Linnaeus, 1758) * '' Angaria formosa'' (Reeve, 1843) * '' Angaria fratrummonsecourorum'' Gà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_opened.jpg "Click for more on -> Skeneinae")
