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The gastropod shell is part of the body of many gastropods, including snails, 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.
The anal sulcus, also called the anal sinus or anal canal, in Gastropods is a notch, a shelly tube at the top of the aperture. [1] It is the first notch close to the suture. It houses the anal siphon through which the snail expels water and waste products. Shell of Drillia poecila Sysoev & Bouchet, 2001, showing the anal sulcus on top of the ...
This is a list of pages in the scope of Wikipedia:WikiProject Gastropods along with pageviews. ... Gastropod shell: 3,272: 109 C: Top: 49 Anentome helena: 3,261: 108 ...
List of gastropods described in 2011; List of gastropods described in 2012 - 2012 in molluscan paleontology#Newly named gastropods; List of gastropods described in 2013 - 2013 in paleomalacology#Gastropods; List of gastropods described in 2014 - 2014 in molluscan paleontology#Newly named gastropods; List of gastropods described in 2015 - 2015 ...
Species attributed to the genus Thapsia sensu lato have shell diameters ranging from about 15 to 30 mm, with 5½-6½ whorls. These rather featureless dextral shells are characterized by a low spire and their yellow to brown color. The spiral sculpture of the postembryonic shell is slender. In some larger * The sculpture of the radial ribs is ...
In very large gastropods such as the queen conch (Aliger gigas) once the columellar muscles are cut with a knife, the soft parts of the animal fall out of the shell easily. Conch fishermen in the Caribbean Sea break a small hole in the spire of the shell, cut the columellar muscles, and harvest the live meat of this species. Often the fishermen ...
In gastropods the opposite to the aperture. [1] Ectocone – The outer cusp on the teeth of the radula. [1] Edentulous – Without teeth or folds, as the aperture in some gastropods. [1] Efferent – Carrying out. [1] Elliptical – With an oval form. [1] Elongated – Drawn out, as the spire of a shell. [1] Emarginate – Bluntly notched. [1]
Most species of wentletrap are white, and have a porcelain-like appearance. They are notable for their intricately geometric shell architecture, and the shells of the larger species are prized by collectors. The more or less turret-shaped shell consists of tightly-wound (sometimes loosely coiled), convex whorls, which create a high, conical spiral.