# pit viper

> subfamily of vipers (family Viperidae)

**Wikidata**: [Q595983](https://www.wikidata.org/wiki/Q595983)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pit_viper)  
**Source**: https://4ort.xyz/entity/pit-viper


## References

1. A phylogeny and revised classification of Squamata, including 4161 species of lizards and snakes
2. Freebase Data Dumps. 2013
3. Taxonomy database of the U.S. National Center for Biotechnology Information
4. Integrated Taxonomic Information System
5. Fossilworks
6. BBC Things
7. UMLS 2023
8. National Library of Israel Names and Subjects Authority File