Hypselostoma insularum is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae, the vertigo snails.
Distribution The type locality is Yonaguni, Ryukyu Islands, Japan.
It is critically endangered and endangered species. ラッパガイ Hypselostoma insularum. Japanese Red Data Book, accessed 21 April 2010.
References
External links http://bigai.world.coocan.jp/pic_book/data54/r005367.html