
Photo: (c) Ian Dugdale, some rights reserved (CC BY) · CC BY 4.0 (May be cropped or resized)
Sibynophis triangularis
Range
Thailand
Sibynophis triangularis, listed here as the Triangle Blackhead, is recorded from Thailand in the national reptile checklist (Thailand reptile checklist). It is Nationally Least Concern (Thailand Red Data 2025).