Red-necked Keelback

Keelbacks & Mock Vipers

Rhabdophis subminiatus

Basic stats

Venom

Venomous (rear-fanged; bites have caused serious, occasionally fatal envenoming)

Diet

Frogs, toads

Habitat

Forest, forest edge, near water

Range

Borneo, South and Southeast Asia

Clutch size

6–14 eggs (typical for Rhabdophis)

Incubation period

About 60–80 days (typical for Rhabdophis)

Size

Medium (up to 1m)

Weight

~80–150g

A keelback that looks unthreatening but is one of the more medically significant 'mildly venomous' colubrids in the region — Rhabdophis subminiatus has caused serious, occasionally fatal envenomation in documented cases, unusual for a rear-fanged snake generally assumed harmless.

Feeds heavily on frogs and toads, also sequestering toxins from toad prey into neck glands for additional defence. Given documented serious bites, this species should not be handled under any circumstances despite its common, unassuming appearance.

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