Central Sipo
Chironius quadricarinatus
- Least concern
- Card rarity: Common
- Reptiles

Chironius quadricarinatus, the central sipo, is a species of nonvenomous snake in the family Colubridae. The species is found in Brazil, Paraguay, and Bolivia.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Colubridae
- Genus
- Chironius