Agkistrodon piscivorus

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Agkistrodon piscivorus


Taxonavigation: Viperoidea 

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: Viperoidea

Familia: Viperidae
Subfamilia: Crotalinae
Genus: Agkistrodon
Species: Agkistrodon piscivorus



Agkistrodon piscivorus (Lacépède, 1789) [conserved name]

  • Type material: not designated, unknown.
  • Type locality: “Caroline”, restricted to “vicinity of Charleston, South Carolina”, by Schmidt (1953: 225).
  • Placed on the Official List of Specific Names in Zoology by Opinion 1463 (1987: 265).


  • Crotalus piscivorus Lacépède, 1789: 130 [original combination]
  • Scytale piscivorusDaudin, 1803: 344 [subsequent combination]
  • Natrix piscivorusMerrem, 1820: 131 [subsequent combination]
  • Trigonocephalus piscivorusHolbrook, 1838: 63 [subsequent combination]
  • Cenchris piscivorusGray, 1842: 51 [subsequent combination]
  • Toxicophis piscivorusBaird & Girard, 1853: 19 [subsequent combination]
  • Ancistrodon piscivorusCope, 1860: 336 [subsequent combination]
  • Agkistrodon piscivorusJordan, 1888: 199 [subsequent combination]


  • Acontias leucostoma Troost, 1836: 176
    • Holotype: unknown, probably lost.
    • Neotype: CHAS 5604, adult ♂, collected by W.F. Ross in 1935. [designated by Gloyd & Conant (1943: 164)]
    • Type locality: “western district of Tennessee”, redesignated by neotype designation to “10 miles northeast of Bolivar, Hardeman County, Tennessee” by Gloyd & Conant (1943: 164).
  • Toxicophis pugnax Baird & Girard, 1853: 20
    • Holotype: USNM 61063 (formerly 4262), head only, collected by J.D. Graham [U.S. and Mexican Boundary Survey].
    • Type locality: “Indianola, Tex. [=Texas]”.



Primary references


Additional references


Vernacular names

com: Tuhparokooʔ
Deutsch: Wassermokassinotter
English: Cottonmouth
français: Mocassin d’eau
magyar: Vízi mokaszinkígyó, halászvipera
Nederlands: Watermoccasinslang
osa: Níi wécʼa
polski: Mokasyn błotny
Türkçe: Su makoseni
Wikimedia Commons For more multimedia, look at Agkistrodon piscivorus on Wikimedia Commons.