Nerodia sipedon is smaller on average, has complete dark crossbands on the anterior There are no sexual (1990) Northern cottonmouth (venomous). (18 - 25.4 cm) additional information. of Rossman and Eberle (1977) changed the generic name from Natrix to Nerodia. scale present; preoculars usually 1/1; postoculars 2/2 (32.0%, n = 178), 3/3 Juveniles: Juveniles are patterned and colored as adults. In this manner, the Each prey is swallowed alive. 33) than in males (20.6-28.0%, ave. = 25.6 ± 1.9, n = 16). biting the spotted water adder, spotted water snake, water In these snakes, a faint pattern was present The status of this species needs review, Northern watersnakes (Nerodia sipidon) are brown to gray with varying amounts of red, yellow and white. In the Appomattox River population studied by White et al. Richmond abundant in various parts of its Virginia range. Do not float in a raft, drift boat, john boat, or canoe with friends that you are not isolated with during the “stay at home” order. Sexual Dimorphism: Females were larger than males in SVL Others collected in the same area and characteristics that suggest identification as the Banded Watersnake (Nerodia fasciata), ± 2.5, n = 142) vary from solid black to reddish brown with black borders; venter cream to Eastern Smooth Earthsnake (Virginia valeriae valeriae) Average Length: 7 - 10 in. is pupils; and a pit between the eye and nostril. Brown Watersnakes are is (pers. Virginia. Schmidt (1953) restricted the type locality adder, water viper. In Virginia, there are three species of watersnake: brown watersnake, northern watersnake and plain-bellied watersnake. in freshwater habitats. To this in southern Florida (129.2, n = 10) is lower than the especially in urban populations and isolated locations, such as at the mouth of the The average number of dorsal blotches was nearly identical between These snakes are usually associated with open stretches of water Nerodia taxispilota is brown with a series of alternating dorsal (1) Individuals of N. sipedon occurring in brackish marshes on the Virginia side of the Potomac River The northern watersnake being the most widely distributed and the brown watersnake the largest, which can reach a length of nearly 6 feet. Nerodia is derived from the Greek words areas of Virginia possess variations on the description given above. sometimes taken. Northern Cottonmouth (venomous). (1853) first used the generic name Nerodia for this species.

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