Plethodon ainsworthi
Catahoula Salamander, Ainsworth's Salamander
Subgenus: Plethodon
family: Plethodontidae
subfamily: Plethodontinae
Taxonomic Notes: This taxon, known only from two poorly preserved specimens, one subsequently destroyed is of questionable validity. Himes and Beckett's (2014, Southeastern Naturalist 24: 103-110) morphological studies led them to consider the taxon synonymous with the syntopic Plethodon mississippi. Pierson et al. (2020, J Herpetology 54:137-143) questioned their findings, but were unable to obtain suitable material for molecular studies and confirmed the demineralization of the skeleton that makes skeletal comparisons impossible. They state "we tentatively recommend continued recognition of P. ainsworthi as a valid but possibly extinct taxon".

Country distribution from AmphibiaWeb's database: United States

U.S. state distribution from AmphibiaWeb's database: Mississippi

IUCN (Red List) status: Extinct (EX).
For Red List information on this species, see the IUCN species account.


View distribution map in BerkeleyMapper.

From Laura Blackburn, Priya Nanjappa, and Michael J. Lannoo (2001) US Amphibian Dist. Maps (

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Citation: AmphibiaWeb. 2020. <> University of California, Berkeley, CA, USA. Accessed 24 Sep 2020.

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