Chironius bicarinatus

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: Colubrinae
Genus: Chironius
Species: Chironius bicarinatus
Name

Chironius bicarinatus (Wied, 1820)

Type locality: Lake near the Rio Jacú, 5 "leguas" south of Espirito Santo city, Espirito Santo, Brazil.
Synonyms

Coluber bicarinatus Wied, 1820
Natrix bicarinata Merrem, 1820
Erpetodryas bicarinatus Boie, 1826
Herpetodryas bicarinatus Wagler, 1830
Herpetodryas bicarinata Fitzinger, 1843
Herpetodryas carinatus Duméril, Bibron & Duméril, 1854
Herpetodryas carinatus var. bicarinata Boettger, 1898
Chironius carinatus (not Linnaeus) Amaral, 1925
Chironius bicarinatus Bailey, 1955

References

Wied, 1820. Reise nach Brazilien, l: 181.
Amaral, 1925. Proc. U. S. nat. Mus. 67: 4.
Bailey, 1955. Occ. Pap. Mus. Zool. Univ. Michig. 571: 8.
Chironius bicarinatus at the New Reptile Database. Accessed on 22 August 2008.

Vernacular names
English: Two-headed Sipo