Megalophaedusa martensi

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Megalophaedusa martensi
Megalophaedusa martensi 02.jpg
Megalophaedusa martensi. The individual in the photo has a shell 45.5 mm long and weighs 3.2g with the soft parts intact.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra

Superfamily: Clausilioidea
Family: Clausiliidae
Genus: Megalophaedusa
Species: M. martensi
Binomial name
Megalophaedusa martensi
(Martens, 1860)

Megalophaedusa martensi is a species of medium-sized air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium.


This is the largest species in the family Clausiliidae, worldwide.


This species is endemic to Japan.[1]


  1. ^ (Japanese) Megalophaedusa martensi. Japanese Red Data Book. Accessed 24 November 2009