Regional Morphology
This is relevant for Pit Vipers in Indian Subcontinent and Southeast Asia.
Morphological identification key
| Crotalinae | ||||
| Scales on the top of the head consist of:
a) several large scales |
b) numerous small scales |
b
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| a
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Where did the accident occur?
b) Thailand, Indochina, Malaysia or Indonesia c) elsewhere in this region |
a | Hypnale sp. | ||
| b | Calloselasma rhodostoma
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| c | ||||
| Gloydius himalayanus
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