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6 Subspecies: Plainbelly water snake, Bogert’s water snake, redbelly water snake, yellbelly water snake, copperbelly water snake, blotched water snake. Plain-bellied water snakes are named for their bellies which are often red or they can also be a very plain color.
They possess broad, flat heads and keeled scales that give them a rough texture, and their backs exhibit dark, blotchy patterns of varying colors depending on the species and location. Water snakes are carnivorous predators that mainly feed on fish, frogs, and other small aquatic creatures.
The Blotched Watersnake (Nerodia erythrogaster transversa) is a moderately sized, non-venomous serpent. Most adults reach sexual maturity between 24 and 36 inches in total length.
This subspecies is commonly known as the blotched water snake. They’re found in select regions within the United States, including: Arkansas; Kansas; Oklahoma; Texas; They have a greenish-yellow belly, and their dorsal scales have dark blotches or bands. They have a brown or olive-colored body, with some having a reddish tint.
Learn about the Plain-bellied water snake (Nerodia erythrogaster) or redbelly water snake - what they eat, are they poisonous, their reproduction & juveniles.
Nerodia is a genus of nonvenomous colubrid snakes commonly referred to as water snakes due to their aquatic behavior. The genus includes nine species , all native to North America . Five of the species have recognized subspecies .
The Blotched Water Snake has three rows of large squarish blotches on the back, which are especially prominent in juveniles. As Blotched Water Snakes age, they become darker in color and may appear to lack markings. The cottonmouth is another large aquatic snake that may be confused with the Concho Water Snake.
Description. Plain-bellied watersnakes are large, heavy-bodied snakes that are usually found in, near, or above (on tree branches or shrubs) water, similar to diamondback watersnakes. In western Oklahoma, they are called blotched watersnakes because their adult coloration is considerably lighter.
Snake fungal infection associated with Fusarium found in Nerodia erythrogaster transversa (Blotched Water Snake) in Texas, USA. Herpetological Review 47 (1): 39-42 - get paper here Belford, Thomas J. 2015.
Plain-bellied water snakes are semi-aquatic snakes that are active during the day. They are mostly solitary, although mating can occur in groups of one female with several males. The active period over most of their range in the United States is from March to early November.