What kind of water snakes live in Oklahoma
Sarah Silva
Updated on April 19, 2026
#1. Common Water Snake.#2. Plain-bellied Watersnake.#4. Broad-banded Watersnake.#5. Diamond-backed Watersnake.#6. Graham’s Crayfish Snake.#7. Gulf Swampsnake.
Are water snakes in Oklahoma poisonous?
“While there are several species of water snakes in Oklahoma, only one species, the western cottonmouth, is venomous,” Elmore said. “Although cottonmouth often act aggressive, their bark is worse than their bite.” All snakes provide important ecological services, including those that are venomous.
How can you tell the difference between a water snake and a cottonmouth?
Cottonmouths also usually have a neck that is narrower than their heads, while water snakes have necks that are not distinct from their bodies. Head shape can also be a telling clue. While cottonmouths have thick, block-shaped heads, a water snake’s head is flat or slender, the University of Florida reports.
How many water snakes are in Oklahoma?
Many snakes are either aquatic or semi-aquatic. The six species of water snakes in Oklahoma are found statewide in lakes, ponds, rivers, and streams. Cottonmouths are well known aquatic residents of the eastern one-third of the state Page 2 9010-2 and those counties along the southern boundary, west to Comanche county.Are water moccasins common in Oklahoma?
The true cottonmouth is commonly seen only in the extreme southeastern counties of McCurtain, Choctaw, Pushmataha, LeFlore, Latimer, Pittsburg, Haskell, Bryan, and Atoka, with occasional sightings occurring throughout the eastern third of the state.
What does a plain-bellied water snake look like?
The plain-bellied water snake is a large, thick-bodied, solid-colored snake. Subspecies can be brown, gray, olive green, greenish-gray, and black in color. Some lighter colored snakes display dark dorsal blotches.
WHAT DOES A Oklahoma water snake look like?
Most individuals are dark gray to black with a broad head, heat-sensing pits between the eyes and nostrils, elliptical pupils, and a blunt snout. Some individuals have a brown, gray, tan, or blackish coloration. Also commonly called Water Moccasins, Black Moccasins, or Gapers.
What is the most venomous snake in Oklahoma?
Western diamondback They particularly like the Pineywoods region and the forested swathes of southern Oklahoma, where they inhabit the Choctaw Nation and the Chickasaw Nation in great numbers. There’s no getting around it – the western diamondback rattlesnake is one of the most feared snakes in the country.Where do plain bellied water snakes live?
A plain-bellied water snake can be found in wetlands, rivers, lakes, and ponds.
Is a diamondback water snake poisonous?The diamondback water snake is non-venomous but extremely aggressive, and often misidentified as poisonous cottonmouths. They release musk and fecal mater when defensive (Missouri Department of Conservation).
Article first time published onWhy do water moccasins chase you?
Despite these examples of relatively benign defensive behaviors, cottonmouths maintain a reputation of being ‘aggressive’ or ‘mean’. Many people will tell you of cottonmouths ‘chasing’ people that get to close, implying that the goal of this behavior is ultimately to bite people.
What water snake looks like a copperhead?
At first glance, common watersnakes (Nerodia sipedon) look like they have a similar pattern to copperheads, but look closer. The Hershey Kisses are upside down. These shapes look more like saddles. As you might expect from their name, watersnakes spend a lot of their time in the water; copperheads rarely do.
How long do you have after a water moccasin bite?
Patients presenting after a cottonmouth bite should undergo observation for eight hours post-envenomation. If there are no physical or hematologic signs within eight hours, then the patient can be discharged home.
How do you identify a water moccasin?
The quick and easy way to identify a water moccasin is to look for its wedge-shaped, blocky head (from above, as in a boat, you can’t see its eyes), check for the heat-sensing slits beneath and between its eyes and nose, and note its olive, dark tan, dark brown or an almost black body, thick and python-like in its …
Where are water moccasins found?
Cottonmouths are native to the U.S. and range from southeastern Virginia to Florida, west to central Texas and north to southern Illinois and Indiana, according to the IUCN. They primarily live in aquatic and wetland habitats, including swamps, marshes, drainage ditches, ponds, lakes and streams.
Are all water moccasins poisonous?
It’s often thought that water moccasins are harmless, non-venomous creatures, and cottonmouths are more dangerous and venomous. In reality, both terms refer to the same species, Agkistrodon piscivorus, which is the only venomous water snake in North America.
Are water snakes black?
The markings and coloration of water snakes vary somewhat from species to species, but for the most part they are brown, gray, olive green or reddish with dark splotches or bands on their backs. Sometimes they look solid brown or black when wet.
Do plain bellied water snakes lay eggs?
This snake gives birth to live young (does not lay eggs). Like most watersnakes, it is sometimes mistaken for the venomous Cottonmouth but is thinner and has round eye pupils.
What does a yellow bellied water snake look like?
IUCN Red List least concern species. Reptiles described in 1766.
Is a red belly water snake poisonous?
This snake is not venomous at all but is a more “aggressive” snake in that it will bite hard and repeatedly if you attempt to pick it up, and it has been known to leave long teeth embedded in its bite.
Do water moccasins have yellow bellies?
The belly typically has dark and brownish-yellow blotches with the underside of the tail being black. As pit-vipers they have facial pits that sense heat and are used to detect prey and predators. Male cottonmouths are larger than females.
What kind of snake is green with a yellow belly?
The Eastern Yellowbelly Racer (Coluber constrictor flaviventris) is a long, lean, fast snake. The adults are usually olive grey-green with a yellow belly.
What kind of snake is brown with an orange belly?
Red-bellied Watersnake (Nerodia erythrogaster) Description: Red-bellied watersnakes are fairly large — 30-48 in (76-122 cm) – semi-aquatic snakes. They are generally dark brown, light brown, or grey with a bright orange to yellowish, unpatterned underside.
What's the deadliest animal in Oklahoma?
- Feral Hogs – Most Aggressive Dangerous Creature in Oklahoma. …
- Copperhead. …
- Cottonmouth or Water Moccasin. …
- Coral Snake. …
- Pygmy Rattlesnake. …
- Timber Rattlesnake. …
- Prairie Rattlesnake. …
- Diamondback Rattlesnake.
Are there any coral snakes in Oklahoma?
North Texas has the same venomous snakes as Oklahoma with one addition, the Texas coral snake, which also might be rarely found near the Red River in extreme southern Oklahoma. The coral snake is not a pit viper- it is a member of the cobra family, Elapidae.
Are Copperheads in Oklahoma?
Common venomous snakes in Oklahoma include rattlesnakes, cottonmouths and copperheads. Copperheads are the most common snakes to cause bites. These snakes are about 2 to 3 feet long and are pit vipers, meaning they strike by detecting the heat produced by their prey.
How do I identify a diamondback water snake?
Diamond-backed Watersnakes are large, stocky snakes identified by dark, diamond-shaped blotches on their back and sides. Their background color is usually brown, but can range from yellowish to greenish. Their belly is light yellow with dark, half-moon shaped spots.
Does a diamondback water snake have a rattle?
While they tend not to prefer wet areas, these snakes are adept swimmers and will occasionally swim in saltwater between barrier reefs and along the edges of swamps. When threatened, the rattle on this snake’s tail issues a final warning before it strikes.
What snake looks like a Diamondback?
Gopher Snake An untrained eye finds the gopher, looking eerily similar to the rattlesnake. The gopher has transverse, square, or diamond-shaped bar markings that resemble those of a rattlesnake.
Can a cottonmouth and copperhead mate?
Kissing Cousins. Cottonmouths (Agkistrodon piscivorus) and copperheads (Agkistrodon contortrix) are members of the same genus, which means they are closely related species, and have even been known to mate and produce hybrid babies in captivity.
What time of day are water moccasins most active?
When swimming, the cottonmouth holds its head above water with most of its body barely touching the surface. Cottonmouths are nocturnal, most active at night. The young wiggle their tails so that the tip appears to be a small worm.