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Neptunea Vladivostokensis
''Neptunea'' is a genus of large sea snails, marine (ocean), marine gastropod Mollusc, mollusks in the subfamily Neptuneinae of the family Buccinidae, the true whelks.Bouchet, P.; Gofas, S. (2010). ''Neptunea'' Röding, 1798. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137710 on 2010-11-02 Species According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus ''Neptunea'' : * ''Neptunea acutispiralis'' Okutani, 1968 * ''Neptunea alabaster'' Alexeyev & Fraussen, 2005 * ''Neptunea alexeyevi'' Fraussen & Terryn, 2007 * ''Neptunea amianta'' (Dall, 1890) * † ''Neptunea angulata'' Harmer, 1914 * ''Neptunea antiqua'' (Carl Linnaeus, Linnaeus, 10th edition of Systema Naturae, 1758) * ''Neptunea arthritica'' (Valenciennes, 1858) * ''Neptunea aurigena'' Fraussen & Terry, 2007 * ... [...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] |
