Thamnophis couchii

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Thamnophis couchii


Taxonavigation: Colubroidea 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Cladus: Unidentata, Episquamata
Cladus: Toxicofera
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Colubroidea

Familia: Colubridae
Subfamilia: Natricinae
Genus: Thamnophis
Species: Thamnophis couchii



Thamnophis couchii (Kennicott in Baird, 1859)

  • Holotype: USNM 866, adult ♀, collected by J.S. Newberry [Pacific Railroad Expedition] in 1855.
  • Type locality: “Bank of Pit River, California”, speficied as “near mouth of Hat Creek”, tributary of the Pit River, Sasha County, California, by Fitch (1940: 59).


  • Eutaenia couchii Kennicott in Baird, 1859: 10 [original combination]
  • Thamnophis ordinoides couchiiVan Denburgh & Slevin, 1918: 251 [subsequent combination, reduce to subspecies]
  • Thamnophis elegans couchiiFox, 1948: 120 [subsequent combination, as subspecies]
  • Thamnophis couchiiFox & Dessauer, 1964: 266 [subsequent combination, restaure to species]



Primary references


Additional references


Vernacular names

English: Western Aquatic Garter Snake
Wikimedia Commons For more multimedia, look at Thamnophis couchii on Wikimedia Commons.