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Euplica turturina, common name : the turtle dove shell, is a species of sea snail, a marine gastropod mollusk in the family Columbellidae, the dove snails. [1]
4 – columella 5 – suture 6 – body whorl 7 – apex Four views of a shell of Arianta arbustorum: Apertural view (top left), lateral view (top right), apical view (bottom left), and umbilical view (bottom right). The gastropod shell is part of the body of many gastropods, including snails, a kind of mollusc.
The length of the shell attains 2.4 mm. (Original description) Shell: Small, obovate, with a scarcely noticeable spire, strong and porcellanous white, lustrous, with an exceedingly narrow aperture. The outer lip is truncate but not emarginate, varixed, and toothless, while the columella has four small folds ending in a sharp point.
A spire is a part of the coiled shell of molluscs. The spire consists of all of the whorls except for the body whorl. Each spire whorl represents a rotation of 360°. A spire is part of the shell of a snail, a gastropod mollusc, a gastropod shell, and also the whorls of the shell in ammonites, which are fossil shelled cephalopods.
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 ...
Shell of marine snail Lunella torquata with the calcareous operculum in place Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place. An operculum (Latin for 'cover, covering'; pl. opercula or operculums) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also ...
List of gastropods described in 2010; 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
An empty shell of Abbottella calliotropis described by G. Thomas Waters A live individual of Zospeum tholussum discovered in 2013, deep in Lukina Jama–Trojama cave system in Croatia An empty shell of Vegrandinia trindadensis, type species of the genus Vegrandinia described by Brazilian malacologists Rodrigo B. Salvador, Luiz R. L. Simone and ...