What geographical observation distinguishes the Yellow Form of *Naja sumatrana*?
Answer
It is generally found in Thailand and Northern Peninsular Malaysia.
Coloration serves as a significant variable within the species, defining different regional populations or 'forms.' The text specifies that the Yellow Form of the Equatorial Spitting Cobra is characteristically observed in Thailand and the northern regions of Peninsular Malaysia. This contrasts with the Black Form, which is commonly sighted across Singapore, the islands of Indonesia, and the Philippines. Understanding these geographical color variations is important for field identification, though the high toxicity remains constant across all forms.

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