Common names: hognose pit vipers
Common names: hognose pit vipers
Porthidium is a genus of pit vipers found in Mexico and southward to northern South America. The name is derived from the Greek word portheo and the suffix -idus, which mean "destroy" and "having the nature of", apparently a reference to the venom. As of January 2026 nine species are recognized as being valid. The snakes of the genus Hypnale in southern India and Sri Lanka look quite similar to those of this genus, possibly an example of convergent evolution.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).