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Ayna
''Ayna'' is a monotypic genus of air-breathing land snails, terrestrial gastropod mollusks in the family Enidae. The sole species in the genus is ''Ayna mienisi''. It was described as ''Zebrina'' (''Ramusculus'') ''mienisi''. The genus ''Ramusculus'' however is a monotypic genus only distantly related to ''Ayna''. The closest relative of ''Ayna'' is probably ''Clausilioides''.
''A. mienisi'' is a chirally enantiomorphic species. This means that some specimens have sinistral (left-coiled), others dextral (right-coiled) shells. The sinistral and dextral specimens form "clear" populations but can by found sympatrically as well. The sinistral specimens were described as a species (''Ramusculus laevitortus'' Schütt, 1995) differs from the dextral ''Ramusculus mienisi''. The species inhabits a relatively small area in Erzurum Province, northeastern Turkey.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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