''Rhadinaea calligaster'', the thick graceful brown snake, is a species of snake in the family

Colubridae Colubridae (, commonly known as colubrids , from la, coluber, 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest species of the family date back to the Oligocene epoch. Colubrid snakes are found on ever ...

. It is found in

Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...

and Panama.

References

* Reptiles described in 1875 Rhadinaea Snakes of Central America Reptiles of Costa Rica Reptiles of Panama Taxa named by Edward Drinker Cope {{Dipsadinae-stub