Stereophaedusa japonica perobscura (Pilsbry, 1901)

• オボロナミギセル

Scientific classification
(unranked):clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Subfamily: Phaedusinae
Tribe: Phaedusini
Genus: Stereophaedusa
Species: Stereophaedusa japonica
Subspecies: S. japonica perobscura

Kitakyushu, Fukuoka, Kyushu, Japan

Clausiliidae, also known by their common name the door snails, are a taxonomic family of small, very elongate, mostly left-handed, air-breathing land snails, sinistral terrestrial pulmonate gastropod mollusks.

Most species of Clausiliidae have an anatomical structure known as a clausilium, which enables the snail to close off the aperture of the shell with a sliding “door”.

via Flickr

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