Plain-bellied Water Snake
- kingdom: Animalia
- phylum: Chordata
- class: Reptilia
- order: Squamata
- family: Natricidae
- genus: Nerodia
- species: Nerodia erythrogaster
Villa de García
Nuevo León
Mexico
Northport- Tuscaloosa
Alabama- Denver
Colorado- Lincolnton
- Nashville
- Rome
- Statesboro
Georgia- Mount Carmel
- Olney
Illinois- Gueydan
- Houma
- Jennings
- Mandeville
- Montz
- Natchitoches
- Ponchatoula
- Slidell
Louisiana- St. Louis
Missouri- Columbus
Ohio- Charleston
- Conway
- Red Hill
- Saint Stephen
South Carolina- Alamo Heights
- Archer City
- Austin
- Beaumont
- Beverly
- Beverly Hills
- Blanco
- Bryan
- Burnet
- Canadian
- Canyon Lake
- Castroville
- China
- Cleveland
- Comanche
- Cross Mountain
- Early
- Fort Stockton
- Ganado
- Georgetown
- Granger
- Groveton
- Houston
- Ingram
- Junction
- Kerrville
- Lampasas
- Leonard
- Lumberton
- Markham
- Maud
- Medina
- Nixon
- Nocona
- Olmos Park
- Palo Pinto
- Preston
- Princeton
- San Angelo
- San Antonio
- San Marcos
- Sanger
- Serenada
- Sinton
- Sweeny
- Terrell Hills
- Tomball
- Trinity
- Waco
- West Livingston
- Wichita Falls
- Woodway
Texas- Washington, D. C.
Washington, D.C.
United States