Opisthostoma mirabile

Opisthostoma mirabile is a species of air-breathing land snail with an operculum, a terrestrial gastropod mollusc in the family Diplommatinidae.

Opisthostoma mirabile
Drawing of the shell of Opisthostoma mirabile.
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Architaenioglossa
Superfamily:	Cyclophoroidea
Family:	Diplommatinidae
Genus:	Opisthostoma
Species:	O. mirabile
Binomial name
Opisthostoma mirabile E.A. Smith, 1893

Distribution

It is endemic to the Kinabatangan Valley, Sabah, Malaysia.^[1] It lives in Borneo.^[2]

Its natural habitat is lowland Dipterocarp rainforest. Opisthostoma mirabile is endemic to one limestone outcrop near Suan Lamba known as 'Gomanton Hill'.^[3] Subpopulations existed in two smaller limestone outcrops. This species is absent in surrounding non-calcareous regions, and therefore restricted to 1.5 km² of limestone hills.^[1]

Threats

It is threatened by habitat loss- limestone quarrying has extirpated Opisthostoma mirabile from the two lesser outcrops, and fire near the outcrops has caused forest desiccation which has led to a decline in Prosobranch populations.^[1]