Dorsally, it has a pattern of 27–34 dark-brown, black, or bluish-black crossbands on the body and tail, which are narrowed and rounded on the sides.

An unbanded black phenotype also occurs in some populations, reportedly in West and Central Java.

[3] It is found in Southeast Asia from Indochina south to Java and Bali in Indonesia.

The major components of the venom are notably three-finger toxins (3FTxs) and Kunitz-type inhibitors.

These toxins as reported can mostly trigger progressive neuromuscular paralysis leading to respiratory failure and in some cases, cardiovascular interruptions like hypertension and shock.