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Siciliaria Septemplicata
''Siciliaria'' is a genus of small, air-breathing land snails, Terrestrial animal, terrestrial pulmonate gastropod molluscs in the family (biology), family Clausiliidae, all of which have a clausilium. Species Species in the genus ''Siciliaria'' include: AnimalBase, accessed 1 April 2009. *''Siciliaria calcarae'' (Philippi, 1844) *''Siciliaria crassicostata'' (Pfeiffer, 1856) *''Siciliaria eminens'' (Schmidt, 1868) *''Siciliaria ernae'' Fauer, 1978 *''Siciliaria ferrox'' Brandt, 1961 *''Siciliaria gibbula'' (Rossmässler, 1836) *''Siciliaria grohmanniana'' (Rossmässler, 1836) *''Siciliaria incerta'' (Küster, 1861) *''Siciliaria kobeltiana'' (Küster, 1876) *''Siciliaria lamellata'' (Rossmässler, 1836) *''Siciliaria leucophryna'' (Pfeiffer, 1862) *' ... [...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] |
