Green Keelback – Venomous – Not Dangerous

Rhabdophis nigrocinctus, Thailand. This is a venomous and poisonous snake with nuchal glands.
This Rhabdophis nigrocinctus was in Phuket, Thailand. ©2015 Elliot Pelling.

Rhabdophis nigrocinctus (Green Keelback)

Thai: (noo ly sab keow kwan dam)

Length: Up to 90 cm

Habitat / Range: Thailand and Southeast Asia. Found in a range of areas, usually fairly close to water. This snake is terrestrial – ground based, and is very common in Phuket, Thailand and Phang Nga, and across much of Thailand. Here in Krabi, I have never seen one.

Notes: These snakes are commonly found near water, lakes, ponds, and in gardens.

Active Time? Daylight hours, especially dawn and dusk near water.

Food: Frogs, poisonous Bufo toads, and fish.

Defensive Behavior: Rarely strike.

Venom Toxicity: Though this snake is not known to have caused medically significant bites with envenomation, it is closely related to the Rhabdophis subminiatus which has proven capable of deadly bites. Do be very careful and treat these snakes as venomous and potentially deadly.

Offspring: Nothing known.

Green Keelback Scientific Classification:

Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Rhabdophis
Species: Rhabdophis nigrocinctus

About Vern Lovic

Snake posts by Vern Lovic. Amateur herpetologist roaming about Thailand on field herping tours and events to find king cobras, kraits, vipers, corals, keelbacks, and other snakes native to Thailand. FYI - Thailand has over 200 snake species. Here's our latest book with detailed information on Thailand's 35 Deadly Snakes. "Is That Snake In Your House Dangerous? Identify Deadly Thailand Snakes In Under 5 Minutes!" INFO HERE.

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