Samoana fragilis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	MOLLUSCA	GASTROPODA	STYLOMMATOPHORA	PARTULIDAE

Scientific Name:

Samoana fragilis

Species Authority:

(Ferussac, 1821)

Common Name/s:

English

–

Tree Snail

Assessment Information [top]

Red List Category & Criteria:

Critically Endangered B1+2cd ver 2.3

Year Published:

2000

Annotations:

Needs updating

Assessor/s:

Mollusc Specialist Group

Reviewer/s:

Seddon, M.B. (Mollusc Red List Authority)

Contributor/s:

Justification:
The fragile tree snail was originally known as a widespread but uncommon species from Guam and Rota. Currently, one population on Rota supports about 100 individuals. The fragile tree snail has not been seen on Guam since 1996 and may be extinct on the island.

History:

1996	–	Endangered
1994	–	Endangered (Groombridge 1994)
1990	–	Endangered (IUCN 1990)

Geographic Range [top]

Countries:	Native: Guam
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Decreasing

Population Trend:

Decreasing

Habitat and Ecology [top]

Systems:	Terrestrial

Systems:

Terrestrial

Bibliography [top]

	Baillie, J. and Groombridge, B. 1996. 1996 IUCN Red List of Threatened Animals. International Union for Conservation of Nature, Gland, Switzerland. Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK. Hilton-Taylor, C. 2000. 2000 IUCN red list of threatened species. IUCN, Gland, Switzerland and Cambridge, UK. Hilton-Taylor, C. 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK. IUCN. 1990. IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Baillie, J. and Groombridge, B. 1996. 1996 IUCN Red List of Threatened Animals. International Union for Conservation of Nature, Gland, Switzerland.

Groombridge, B. (ed.). 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Hilton-Taylor, C. 2000. 2000 IUCN red list of threatened species. IUCN, Gland, Switzerland and Cambridge, UK.

Hilton-Taylor, C. 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK.

IUCN. 1990. IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland and Cambridge, UK.

Citation:	Mollusc Specialist Group 2000. Samoana fragilis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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