Costa Rica Water Snake
Hydromorphus concolor
- Least concern
- Card rarity: Common
- Reptiles

Hydromorphus concolor, also known as the Costa Rica water snake, is a snake of the colubrid family. It is moderately-sized, growing to lengths of 690 mm (27 in) for males and 797 mm (31.4 in) for females. It is widely distributed in Central America from Guatemala south to Panama. It inhabits freshwater rainforest streams in dense lowland and premontane rainforests. It feeds on small crabs, frogs, fish, and Atya shrimp. It is classified as being of least-concern on the IUCN Red List.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Colubridae
- Genus
- Hydromorphus