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Opisthostoma mirabile 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Architaenioglossa Diplommatinidae

Scientific Name: Opisthostoma mirabile E.A. Smith, 1893

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B2ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Annotations:
Needs updating
Assessor(s): Schilthuizen, M. & Vermeulen, J.
Reviewer(s): Seddon, M.B. & Schilthuizen, M. (Mollusc Red List Authority)
Justification:
Listed asCritically Endangered because the AOO is 1.5 kmĀ², with only one known locality, which has declining habitat quality due to logging in the forest and quarrying which has already lead to the loss of two subpopulations.

Geographic Range [top]

Range Description:Recorded from Suan Lamba, a limestone outcrop in the Kinabatangan Valley, Sabah, Malaysia. Also formerly occurred on other small surrounding hills.
Countries occurrence:
Native:
Malaysia (Sabah)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:Currently known from only one large limestone outcrop; absent in the surrounding non-calcareous area. Found in lowland tropical Dipterocarp rainforest.
Systems:Terrestrial

Threats [top]

Major Threat(s): Two smaller limestone outcrops nearby Suan Lamba, which also supported subpopulations of this species, have probably disappeared due to quarrying since the 1960s. Repeated cycles of logging and fire on and around the limestone outcrops cause drying out of the forest and decline of Prosobranch populations.

Citation: Schilthuizen, M. & Vermeulen, J. 2004. Opisthostoma mirabile. The IUCN Red List of Threatened Species 2004: e.T44625A10929311. . Downloaded on 21 September 2018.
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