Biology:List of critically endangered reptiles
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 196 critically endangered reptile species, including 17 which are tagged as possibly extinct.[1][2] 3.8% of all evaluated reptile species are listed as critically endangered. The IUCN also lists 12 reptile subspecies as critically endangered.
Of the subpopulations of reptiles evaluated by the IUCN, ten species subpopulations have been assessed as critically endangered.
Additionally 910 reptile species (18% of those evaluated) are listed as data deficient, meaning there is not sufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN.[3] While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed".[4]
This is a complete list of critically endangered reptile species and subspecies evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Species and subspecies which have critically endangered subpopulations (or stocks) are indicated.
Turtles and tortoises
There are 40 species, four subspecies, and three subpopulations of turtle assessed as critically endangered.
Cheloniids
Species
- Hawksbill sea turtle (Eretmochelys imbricata)
- Atlantic ridley sea turtle (Lepidochelys kempii)
Subpopulations
- Loggerhead sea turtle (Caretta caretta) (3 subpopulations)
Platysternidae
- Big-headed turtle (Platysternon megacephalum)
Tortoises
Species
Subspecies
- Testudo graeca nikolskii
Geoemydids
Trionychids
Species
Subspecies
- Black spiny softshell turtle (Apalone spinifera atra)
Subpopulations
- African softshell turtle (Trionyx triunguis) (1 subpopulation)
Other turtles
Species
Subspecies
- Seychelles yellow-bellied mud turtle (Pelusios castanoides intergularis)
- Seychelles black mud turtle (Pelusios subniger parietalis)
Subpopulations
- Leatherback sea turtle (Dermochelys coriacea) (4 subpopulations)
Crocodilia species
Lizards
There are 110 species, four subspecies, and one subpopulation of lizard assessed as critically endangered.
Iguanids
Includes iguanas and related species.
Species
Subspecies
Subpopulations
- Black-chested spiny-tailed iguana (Ctenosaura melanosterna) (2 subpopulations)
Anguids
Includes slowworms, glass lizards, and alligator lizards.
Chameleons
Gekkonids
Wall lizards
Skinks
Other lizard species
Snakes
Species
Subspecies
See also
- Lists of IUCN Red List critically endangered species
- List of least concern reptiles
- List of near threatened reptiles
- List of vulnerable reptiles
- List of endangered reptiles
- List of recently extinct reptiles
- List of data deficient reptiles
References
- ↑ "IUCN Red List version 2016-2". International Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/. Retrieved 8 September 2016.
- ↑ "Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2016-2)". Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/about/summary-statistics. Retrieved 8 September 2016.
- ↑ "Limitations of the Data". Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/initiatives/mammals/description/limitations. Retrieved 11 January 2016.
- ↑ "2001 Categories & Criteria (version 3.1)". Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/static/categories_criteria_3_1. Retrieved 11 January 2016.
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