The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T177435A7435886
Phalotris lemniscatus, Dumeril's Diadem Snake
Assessment by: Martins, M.
View on www.iucnredlist.org
Citation: Martins, M. 2010. Phalotris lemniscatus. The IUCN Red List of Threatened Species 2010:
e.T177435A7435886. http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Reptilia
Squamata
Dipsadidae
Taxon Name: Phalotris lemniscatus (Duméril, Bibron & Dumérill, 1854)
Synonym(s):
• Elapomorphus bilineatus subspecies lemniscatus Duméril, Bibron & Duméril, 1854
• Elapomorphus iheringi
• Elapomorphus lemniscatus
• Elapomorphus reticulatus
• Phalotris divittatus
• Phalotris melanopleurus
Common Name(s):
• English:
Dumeril's Diadem Snake
Taxonomic Notes:
This species has four subspecies:
P. lemniscatus lemniscatus (Duméril, Bibron & Dumérill, 1854)
P. lemniscatus divittatus (Lema, 1984)
P. lemniscatus iheringi (Strauch, 1884)
P. lemniscatus trilineatus (Boulenger, 1889).
Assessment Information
Red List Category & Criteria:
Least Concern ver 3.1
Year Published:
2010
Date Assessed:
June 30, 2009
Justification:
Phalotris lemniscatus has been assessed as Least Concern owing to its large distribution. No specific
threats have been reported and this species is not undergoing significant population declines.
Geographic Range
Range Description:
This species is found in Brazil (in the state of Rio Grande do Sul), Argentina (in the states of Corrientes
and Misiones), and in Uruguay.
Country Occurrence:
Native: Argentina (Corrientes, Misiones); Brazil (Rio Grande do Sul); Uruguay
© The IUCN Red List of Threatened Species: Phalotris lemniscatus – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.en
1
Distribution Map
© The IUCN Red List of Threatened Species: Phalotris lemniscatus – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.en
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Population
There is no population information available for this species.
Current Population Trend: Unknown
Habitat and Ecology (see Appendix for additional information)
This species is found in moist grassland and forest habitat.
Systems: Terrestrial
Threats
It is unlikely that any major threat is impacting this species.
Conservation Actions (see Appendix for additional information)
There are no known species-specific conservation measures in place for this species, however, in places
its distribution coincides with protected areas. No further conservation measures are needed.
Credits
Assessor(s):
Martins, M.
Reviewer(s):
Böhm, M., Collen, B. & Ram, M. (Sampled Red List Index Coordinating Team)
Contributor(s):
De Silva, R., Milligan, HT, Wearn, O.R., Wren, S., Zamin, T., Sears, J., Wilson, P.,
Lewis, S., Lintott, P. & Powney, G.
© The IUCN Red List of Threatened Species: Phalotris lemniscatus – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.en
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Bibliography
IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.4). Available at: http://www.iucnredlist.org.
(Accessed: 27 October 2010).
Lema, T. 1979. Sobre a validade dos nomes Elapomorphus bilineatus Dumeril, Bibron & Dumeril, 1854 e
E. lemniscatus Dumeril, Bibron & Dumeril, 1854 (Ophidia: Colubridae). Iheringia Serie Zoologia 54: 7781.
Lema, T. 1984. Sobre o genero Elapomorphus Wiegmann, 1843 (Serpentes, Colubridae,
Elapomorphinae). Iheringia Serie Zoologia 64: 53-86.
Martins, M. 2007. pers. comm. Red List Assessment.
Peters, J.A. and Donoso-Barros, R. 1986. Catalogue of the Neotropical Squamata. Smithsonian
Institution Press, Washington DC.
Scharfer, E.F. 1998. Phalotris lemniscatus. Herpetological Review 29(3): 178.
Citation
Martins, M. 2010. Phalotris lemniscatus. The IUCN Red List of Threatened Species 2010:
e.T177435A7435886. http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.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: Phalotris lemniscatus – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.en
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Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
-
Suitable
-
4. Grassland -> 4.6. Grassland - Subtropical/Tropical Seasonally
Wet/Flooded
-
Suitable
-
Conservation Actions in Place
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Conservation Actions in Place
In-Place Land/Water Protection and Management
Occur in at least one PA: Yes
Additional Data Fields
Population
Population severely fragmented: No
© The IUCN Red List of Threatened Species: Phalotris lemniscatus – published in 2010.
http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T177435A7435886.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™