Photos: New Amazon species New Amazon species – Allobates amissibilis -- Believed to be highly endangered, this amphibian found in Guyana marked the third Allobates species found there. Hide Caption 1 of 11

Photos: New Amazon species New Amazon species – Apistogramma cinilabra -- This fish from the cichlid family is potentially endangered, according to the WWF. Hide Caption 2 of 11

Photos: New Amazon species New Amazon species – Callicebus caquetensis -- About 20 species of titi monkeys live in the Amazon basin. The newly discovered species purrs like a cat. Hide Caption 3 of 11

Photos: New Amazon species New Amazon species – Cercosaura hypnoides -- Scientists were able to collect hatchlings from eggs of this "flame-patterned and elusive lizard" in Colombia, the World Wildlife Fund says. Hide Caption 4 of 11

Photos: New Amazon species New Amazon species – Chironius challenger -- In the mountains of the northern Amazon, snake discoveries are rare, but this critter was found in Tepuis, at 1,500 meters of elevation. Hide Caption 5 of 11

Photos: New Amazon species New Amazon species – Dicrossus warzeli -- This fish was named eponymously for a German aquarist who was able to observe the fish's behavior in Brazil and Colombia. Hide Caption 6 of 11

Photos: New Amazon species New Amazon species – Gonatodes timidus -- In Guyana, this lizard, with a black head with irregular stripes and blotches, can avoid being seen by darting between rocks. Hide Caption 7 of 11

Photos: New Amazon species New Amazon species – Passiflora longifilamentosa -- A new species of passion flower, with spaghetti-like filaments, was found in Brazil's Para state. Hide Caption 8 of 11

Photos: New Amazon species New Amazon species – Sobralia imavieirae -- In the Brazilian Amazon, scientists found this in Roraima, one of the least populated parts of the country. Hide Caption 9 of 11

Photos: New Amazon species New Amazon species – Potamotrygon tatianae -- In Peru, in the Río Madre de Díos, a river stringray was found. Hide Caption 10 of 11