|
The Lord Howe Flax Snail or the Lord Howe placostylus, scientific name ''Placostylus bivaricosus'', is a species of large air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Bothriembryontidae. This large snail is found only on Lord Howe Island off the east coast of Australia. Its conservation status has declined from common to endangered since rats were accidentally introduced to this World Heritage island in 1918. == Subspecies == Subspecies of ''Placostylus bivaricosus'' include: * ''Placostylus bivaricosus bivaricosus'' (Gaskoin, 1855)〔Ponder W. F., Colgan D. J., Gleeson D. M. & Sherley G. H. (2003). "Relationships of ''Placostylus'' from Lord Howe Island: an investigation using the mitochondrial cytochrome c oxidase 1 gene". ''Molluscan Research'' 23(2): 159-178. , (PDF ).〕 * ''Placostylus bivaricosus etheridgei'' (Hedley, 1891)〔 - extinct〔Ponder W. F. (1996). ("''Placostylus bivaricosus'' ssp. ''etheridgei''" ). In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.3. * ''Placostylus bivaricosus cuniculinsulae'' (Cox, 1872)〔 * ''Placostylus bivaricosus solidus'' (Brazier in Etheridge, 1889)〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lord Howe flax snail」の詳細全文を読む スポンサード リンク
|