Angel’s Mountain Keelback
Trimerodytes praemaxillaris (Angel, 1929)
Also calledBraune Bachnatter (deu) · Brown Stream Snake (eng) · 老挝副后棱蛇 (zho)
Trimerodytes praemaxillaris is a species of snake in the subfamily Natricinae of the family Colubridae. It is also known commonly as Angel's mountain keelback, Angel's stream snake, and the brown stream snake. The species is endemic to Southeast Asia.
- Recorded from
- N Laos, Thailand, China (Yunnan)
- Also published as
- Paratapinophis praemaxillaris Angel, 1929
From Wikipedia (CC BY-SA), quoted section by section
Description
Dorsally, T. praemaxillaris is brown. Ventrally, it is dirty yellowish. The dorsal scales are smooth and are in 19 rows at midbody.
Range & habitat
T. praemaxillaris is found in China (Yunnan province), northern Laos, and Thailand.
What it does
T. praemaxillaris is oviparous. The cotypes are hatchlings, each with an egg-tooth and a fresh umbilical scar. Each of these little snakes has a total length of 21.5 cm (8.5 in), which includes a tail 5 cm (2.0 in) long.
Where it has been recorded
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Trimerodytes praemaxillaris in the Biodiversity Heritage Library →
References
- Uetz, P. H., Patel, M., Gbadamosi, Z., Nguyen, A., & Shoope, S. (2024). A Reference Database of Reptile Images. Taxonomy 4: 723–732.
- Shen, Y., Kaiser, C. M., Nishikawa, K., Sanamxay, D., Inthavong, P., & Kaiser, H. (2025). First record of Trimerodytes praemaxillaris (Angel, 1929) from Xaisomboun Province, Laos, with additional comments on morphology, natural history, and the type locality. Herpetology Notes 18: 143-153.
- Brown, W. C., & Leviton, A. E. (1961). Discovery of the snake genus Opisthotropis in the Philippine Islands, with description of a new species. Occasional Papers of the Natural History Museum of Stanford University (8): 1-11.
- Rasmussen, Jens B. (1982). A new record of the rare Opisthotropis praemaxillaris (Serpentes: Colubridae). Amphibia-Reptilia 3: 279-280.
- Ziegler, T., & Patrick David, V. N. T. (2008). A new natricine snake of the genus Opisthotropis from Tam Dao, Vinh Phuc Province, northern Vietnam (Squamata, Colubridae). Zoosystematics and Evolution 84 (2): 197 -203.
- Pope, CLIFFORD H. (1935). The Reptiles of China. Turtes, Crocodilians, Snakes, Lizards. Amer. Mus. Nat. Hist., New York, Nat. Hist. Central Asia, 10: Lii, 1-604.
From the Catalogue of Life (catalogueoflife.org), compiled from its specialist databases; CC BY 4.0. This name in the Catalogue of Life.