Megalophaedusa spelaeonis

Megalophaedusa spelaeonis, in Japanese: Kazaanagiseru (カザアナギセル), is a species of small, air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium.

Description
The height of the shell is 10–11 mm. The width of the shell is 2.5–3 mm.



Distribution
This species is endemic to central part of Kumamoto Prefecture, Kyushu, Japan.

It is endangered species (CR+EN) in Japan.

Ecology
It lives in limestone caves.