Brown water snake

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Brown water snake
Brown Water Snake.jpg
Nerodia taxispilota in West Palm Beach, Florida
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Nerodia
N. taxispilota
Binomial name
Nerodia taxispilota
(Holbrook, 1842)
brown water snake (Nerodia taxispilota)

The brown water snake (Nerodia taxispilota) is a large species of nonvenomous natricine snake endemic to the southeastern United States.

Lycodonomorphus rufulus is sometimes also called the brown water snake, but L. rufulus is found in South Africa.

Common Names[edit]

Brown water snake, water-pilot,[2] aspic, false moccasin, great water snake, pied water snake, southern water snake, water rattle.[3]

Geographic Range[edit]

Nerodia taxispilota is found in lower coastal regions from southeastern Virginia, through North Carolina, South Carolina, and Georgia, to northern and western Florida (Gulf Coast), then west through Missouri, Alabama and Mississippi, to Louisiana, normally from sea level to 500 ft. (150 m) elevation.[3]


The brown water snake is very heavy-bodied, and its neck is distinctly narrower than its head. Dorsally it is brown or rusty brown with a row of about 25 black or dark brown square blotches down its back. Smaller similar blotches alternate on the sides. Ventrally it is yellow heavily marked with black or dark brown.[4] Dorsal scales are in 27-33 rows (more than any other North American water snake), and it has 2-4 anterior temporals (usually 1 in others).[5] Adults measure 30-60 in. (76–152 cm) in total length; record 69 in. (175 cm).[6]


Nerodia taxispilota is found in swamps and streams and is often mistaken for a venomous snake.


Nerodia taxispilota is ovoviviparous. Mating takes place in the spring on land or on tree branches. On average adult females are larger than adult males. The young are born alive, usually in August, in broods of 14-58, more commonly 30-40. The newborns are 7-10¾ in. (18–27 cm) long, with males longer than females, opposite of adults.[3]

Original publication[edit]

  • Holbrook, J.E. (1842). North American Herpetology; or, a Description of the Reptiles Inhabiting the United States, Vol. IV. Philadelphia: J. Dobson. 138 pp. (Tropidonotus taxispilotus, new species, pp. 35–36 & Plate VIII).


  1. ^ Hammerson, G.A. (2007). "Nerodia taxispilota". The IUCN Red List of Threatened Species. IUCN. 2007: e.T63857A12722712. doi:10.2305/IUCN.UK.2007.RLTS.T63857A12722712.en. Retrieved 23 December 2017.
  2. ^ Stejneger, L., and T. Barbour (1917). A Check List of North American Amphibians and Reptiles. Cambridge, Massachusetts: Harvard University Press. 125 pp. (Natrix taxispilota, p. 97).
  3. ^ a b c Wright, A.H., and A.A. Wright (1957). Handbook of Snakes of the United States and Canada. Ithaca and London: Comstock Publishing Assosciates, a division of Cornell University Press. 1,105 pp. (in 2 volumes) (Natrix taxispilota, pp. 544-547, Figure 162, Map 41).
  4. ^ Schmidt, K.P., and D.D. Davis. 1941. Field Book of Snakes of the United States and Canada. New York: G.P. Putnam's Sons. 365 pp. (Natrix taxispilota, pp. 213-215 + Plate 23, Center, on p. 343.)
  5. ^ Smith, H.M., and E.D. Brodie Jr. (1982). Reptiles of North America: A Guide to Field Identification. New York: Golden Press. 240 pp. ISBN 0-307-13666-3 (paperback) (Nerodia taxispilota, pp. 154-155).
  6. ^ Conant, Roger (1975). A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. Boston: Houghton Mifflin. 429 pp. ISBN 0-395-19979-4 (hardcover), ISBN 0-395-19977-8 (paperback) (Natrix taxispilota, p. 141 + Plate 21 + Map 107).

Further reading[edit]

  • Conant, R., and W. Bridges (1939). What Snake Is That? A Field Guide to the Snakes of the United States East of the Rocky Mountains. (with 108 drawings by Edmond Malnate). New York and London: D. Appleton-Century. Frontispiece map + viii + 163 pp. + Plates A-C, 1-32.) (Natrix taxispilota, pp. 106–107 + Plate 20, Figure 58).
  • Morris, P.A. (1948). Boy's Book of Snakes: How to Recognize and Understand Them. A volume of the Humanizing Science Series, edited by Jacques Cattell. New York: Ronald Press. viii + 185 pp. ("The Brown Water Snake", pp. 84–85, 180).
  • Powell, R., R. Conant, and J.T. Collins (2016). Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Fourth Edition. Boston and New York: Houghton Mifflin Harcourt. xiv + 494 pp., 47 plates, 207 figures. ISBN 978-0-544-12997-9. (Nerodia taxispilota, pp. 420-422, Figure 191 + Plate 41).

External links[edit]