Select the snake family or subfamily and your current world region. If you don't know the family/subfamily, go to the "Find terrestrial snake by morphology (general)" page and follow the instructions.
Find terrestrial venomous snake by morphology (regional)
Selection
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Morphological identification key
| Viperinae | ||||||||||||||||||||||||
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Are there at least 3 (up to 9) large shields on the top of the head? |
yes |
Did the accident occur north of the 35th parallel? |
yes |
Vipera berus or Vipera renardi |
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| no | Azemiops feae |
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| no |
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