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The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T197874A2503535
Macrobrachium leptodactylus
Assessment by: De Grave, S. & Wowor, D.
View on www.iucnredlist.org
Citation: De Grave, S. & Wowor, D. 2013. Macrobrachium leptodactylus. The IUCN Red List of
Threatened Species 2013: e.T197874A2503535. http://dx.doi.org/10.2305/IUCN.UK.20131.RLTS.T197874A2503535.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Taxon Name: Macrobrachium leptodactylus (De Man, 1892a)
Taxonomic Source(s):
Ou, A.C.T. and Yeo, D.C.J. 1995. A new species of freshwater prawn, Macrobrachium platycheles
(Decapoda: Caridea: Palaemonidae) from Singapore and Peninsular Malaysia. Raffles Bulletin of Zoology
43: 299-308.
Taxonomic Notes:
Ou and Yeo (1995) consider that Macrobrachium leptodactylus is a synonym of M. pilimanus.
Assessment Information
Red List Category & Criteria:
Extinct ver 3.1
Year Published:
2013
Date Assessed:
November 30, 2011
Justification:
The species is only known from the type specimen collected from an unknown location in the Bogor
Regency (2,664 km2) in Java, Indonesia in 1888. Surveys in the past 30 years in the area have failed to
collect the species. This complex of freshwater shrimp species have been well surveyed in the wider
region and based on the total lack of records over the past 30 years (surveyed every year) in the Bogor
Regency and the level of development of the Regency since the description, the species is assessed as
Extinct. It is however noted that Ou and Yeo (1995) consider that Macrobrachium leptodactylus could be
a synonym of M. pilimanus, a widespread species in Java.
Geographic Range
Range Description:
The species is only known from the type specimen collected from an unknown location in the Bogor
Regency in Java, Indonesia in 1888 (Chace and Bruce 1993). Surveys in the past 30 years in the area
failed to collect the species.
Country Occurrence:
Regionally extinct: Indonesia (Jawa)
© The IUCN Red List of Threatened Species: Macrobrachium leptodactylus – published in 2013.
http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197874A2503535.en
1
Distribution Map
© The IUCN Red List of Threatened Species: Macrobrachium leptodactylus – published in 2013.
http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197874A2503535.en
2
Population
Extinct. Surveys in the past 30 years in the area have failed to collect the species.
Current Population Trend: Stable
Habitat and Ecology (see Appendix for additional information)
The exact habitat requirements are unknown.
Systems: Freshwater
Use and Trade
No information is available.
Threats (see Appendix for additional information)
Since the species was collected 1888, the Bogor Regency has developed significantly (urban and
agriculture). There are now 1,791 people per km2 according to 2010 official population census of the
Bogor Regency.
Conservation Actions
None
Credits
Assessor(s):
De Grave, S. & Wowor, D.
Reviewer(s):
Cumberlidge, N. & Smith, K.
© The IUCN Red List of Threatened Species: Macrobrachium leptodactylus – published in 2013.
http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197874A2503535.en
3
Bibliography
Chace, F.A.Jr. and A.J. Bruce. 1993. The caridean shrimps (Crustacea: Decapoda) of the Albatross
Philippine Expedition 1907-1910, Part 6: Superfamily Palaemonoidea. Smithsonian Contributions to
Zoology 543: 1-152.
IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: http://www.iucnredlist.org.
(Accessed: 12 June 2013).
Ou, A.C.T. and Yeo, D.C.J. 1995. A new species of freshwater prawn, Macrobrachium platycheles
(Decapoda: Caridea: Palaemonidae) from Singapore and Peninsular Malaysia. Raffles Bulletin of Zoology
43: 299-308.
Citation
De Grave, S. & Wowor, D. 2013. Macrobrachium leptodactylus. The IUCN Red List of Threatened Species
2013: e.T197874A2503535. http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197874A2503535.en
Disclaimer
To make use of this information, please check the Terms of Use.
External Resources
For Images and External Links to Additional Information, please see the Red List website.
© The IUCN Red List of Threatened Species: Macrobrachium leptodactylus – published in 2013.
http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197874A2503535.en
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Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
0. Root -> 18. Unknown
-
-
-
Threats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Threat
Timing
Scope
Severity
Impact Score
1. Residential & commercial development -> 1.1.
Housing & urban areas
Ongoing
Whole (>90%)
Very rapid
declines
High impact: 9
Stresses:
1. Ecosystem stresses -> 1.1. Ecosystem conversion
Ongoing
Whole (>90%)
Stresses:
1. Ecosystem stresses -> 1.2. Ecosystem degradation
Ongoing
Whole (>90%)
Stresses:
1. Ecosystem stresses -> 1.2. Ecosystem degradation
2. Agriculture & aquaculture -> 2.1. Annual &
perennial non-timber crops -> 2.1.4. Scale
Unknown/Unrecorded
2. Agriculture & aquaculture -> 2.3. Livestock farming
& ranching -> 2.3.4. Scale Unknown/Unrecorded
Very rapid
declines
Very rapid
declines
High impact: 9
High impact: 9
Research Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Research Needed
1. Research -> 1.1. Taxonomy
Additional Data Fields
Population
Population severely fragmented: No
Habitats and Ecology
Movement patterns: Unknown
© The IUCN Red List of Threatened Species: Macrobrachium leptodactylus – published in 2013.
http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197874A2503535.en
5
The IUCN Red List Partnership
The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species
Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN
Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation
International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas
A&M University; Wildscreen; and Zoological Society of London.
THE IUCN RED LIST OF THREATENED SPECIES™