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Hognose snake is a common name for several unrelated species of snakes with upturned snouts, classified in two colubrid snake families and one pseudoxyrhophiid snake family. They include the following genera: Heterodon, which occur mainly in the United States and northern Mexico. Leioheterodon, the hognose snakes native to Madagascar.
Eastern hognose snake. The eastern hog-nosed snake[ 3 ] (Heterodon platirhinos), is a species of mildly venomous rear-fanged snake in the family Colubridae. The venom is specifically adapted to amphibian prey and is harmless to humans. However, some people may have an allergic reaction, and experience local swelling and other symptoms.
Binomial name. Heterodon simus. (Linnaeus, 1766) Synonyms. Coluber simus Linnaeus, 1766. Heterodon simus — Holbrook, 1842[3] Adult Southern Hognose Snake, H. Simus. Heterodon simus, commonly known as the southern hog-nosed snake, is a harmless [4] snake species endemic to the southeastern United States. No subspecies are currently recognized.
Characteristics: The eastern hognose snake is one of the most diverse, being 2 to 4 feet long and with many patterns and colors. There are both spotted and solid variants, with black, gray and ...
The western hognose snake is a relatively small, stout-bodied snake. Its color and pattern is highly variable between subspecies, although most specimens appear much like rattlesnakes to the untrained eye, which appears to be Batesian mimicry. Males are considerably smaller than females, with adults rarely exceeding a total length (including ...
Description. This snake is distinguishable by its namesake upturned rostral scale and striking banded pattern of white stripes bordered with black on a red base. They use mimicry for defense, as they display the same colors and patterns as some venomous coral snakes. [4] When threatened, it may use a defensive display involving bluff strikes ...
To complicate the issue more, the South American tricolored hognose snake (Xenodon pulcher) has repeated bands of red-black-white-black, imitating the coral snake as a defense mechanism, with the key visual difference being their upturned snout (used for burrowing). The hognoses are, actually, mildly rear-fanged venomous; although generally not ...
Xenodon dorbignyi. — Zaher et al., 2009. Xenodon dorbignyi, the South American hognose snake, is a species of snake in the family Colubridae. The species is native to southern South America. There are four recognized subspecies .