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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Colubroidea

Familia: Colubridae
Subfamilia: Natricinae
Genus: Liodytes
Species (3): L. alleni – L. pygaea – L. rigida

Liodytes Cope, 1885: 194

Type species: Helicops alleni Garman, 1874, by original designation.


Seminatrix Cope, 1895: 678 [synonymised by McVay & Carstens (2013: 430)]
Type species: Contia pygaea Cope, 1871, by monotypy.

Primary references

McVay, J.D. & Carstens, B. 2013. Testing monophyly without well-supported gene trees: Evidence from multi-locus nuclear data conflicts with existing taxonomy in the snake tribe Thamnophiini. Molecular Phylogenetics and Evolution 68(3): 425–431. DOI: 10.1016/j.ympev.2013.04.028 Reference page.


Uetz, P. & Hallermann, J. 2021. Liodytes . The Reptile Database. Accessed on 16 May 2019.

Liodytes is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus contains three species.

Geographic range

All species of the genus Liodytes are endemic to the southeastern United States.[1]

The following species are recognized as being valid.[1]

Liodytes alleni (Garman, 1874) – striped crayfish snake
Liodytes pygaea (Cope, 1871) – black swamp snake
Liodytes rigida (Say, 1825) – crayfish snake

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Liodytes.

Genus Liodytes at The Reptile Database. www.reptile-database.org.

Further reading

Cope ED (1885). "Twelfth Contribution to the Herpetology of Tropical America". Proceedings of the American Philosophical Society, Philadelphia 22: 167–194. (Liodytes, new genus, p. 194).
Powell R, Conant R, Collins JT (2016). Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Fourth Edition. Boston and New York: Houghton Mifflin Harcourt. xiv + 494 pp., 47 plates, 207 figures. ISBN 978-0-544-12997-9. (Genus Liodytes, p. 412).


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