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Calyptraea Aurita
''Calyptraea'', commonly known as the Chinese hat snails is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, a family which contains the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Species Species within the genus ''Calyptraea'' include: * '' Calyptraea africana'' Rolán, 2004 * † '' Calyptraea alta'' (Conrad, 1854) * '' Calyptraea aurita'' Reeve, 1859 * ''Calyptraea barnardi'' Kilburn, 1980 * ''Calyptraea burchi'' Smith & Gordon, 1948 * ''Calyptraea capensis'' Tomlin, 1931 * ''Calyptraea centralis'' (Conrad, 1841) * '' Calyptraea chinensis'' (Linnaeus, 1758) * ''Calyptraea conica'' Broderip, 1834 * ''Calyptraea contorta'' (Carpenter, 1864) * '' Calyptraea edgariana'' Melvill, 1898 * ''Calyptraea fastigiata'' Gould, 1846 * '' Calyptraea helicoidea'' (G. B. Sowerby II, 1883) * '' Calyptraea inexpectata'' Rolán, 2004 * '' Calyptraea lichen'' Broderip, 1834 * '' Calyptraea mamillaris'' Broderip, 1834 * '' Calyp ... [...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] |
