The Peruvian rainbow boa, Epicrates cenchoa gaigei, is the most brilliantly colored and iridescent race of this snake. In bright light their iridescence can vary from royal blue to turqoise green. This is a mainly terrestrial boa that can reach a length of 5 - 6 feet. It is found in the lowland rainforests of eastern Peru and western Bolivia. Photographed in habitat near the Orosa River, Loreto, Peru.