Mangrove snake venom can cause extensive pain, swelling, and coagulopathy (thinning of the blood) hence the bleeding response however the species being rear-fanged lacks an effective venom delivery system unless you are prey size or they get a good chew on you. Effects are treated symptomatically since no antivenin exist.

Hognose bites have been documented as causing significant pain, bruising and swelling that can progress up a limb as pointed out. An excellent case study of Western Hognose Envenomation was presented at the Venom Week Symposium, but again treatment is symptomatic.

Another snake included in this discussion would be the False Water Cobra which has been doscumented as causing significant pain, swelling and even a mild paralysis in the bitten limb (But not a severe flaccid paralysis capable of respiratory paralysis). Again the bite is treated symptomatically.

Joe Pittman, RN, CSPI, Snakebite Treatment Specialist
Director, Florida Snakebite Institute
Poison Specialist, Florida Poison Information Center-Tampa

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