What is Hyloscirtus tolkieni?
{{Speciesbox | image =Hyloscirtus tolkieni.jpg | status = | status_ref = | status_system = IUCN3.1 | taxon = Hyloscirtus tolkieni | authority = (Sánchez-Nivicela, Falcón-Reibán, and Cisneros-Heredia, 2023) | range_map = |synonyms= | synonyms_ref=<ref name=AMNH /> }} The '''Río Negro stream frog''' (''Hyloscirtus tolkieni'') is a [[frog]]. It lives in [[Ecuador]] in the [[Andes Mountains]]. Scientists have seen it 3190 meters above sea level.<ref name=Reptiles>{{cite news|url=https://reptilesmagazine.com/hyloscirtus-tolkieni-stream-frog-discovered-in-andes-named-after-j-r-r-tolkien/|publisher=Reptiles Magazine|accessdate=February 19, 2023|title=Hyloscirtus tolkieni, A New Stream Frog Species Named After J.R.R. Tolkien|author1=John Virata|date=February 16, 2023}}</ref><ref name=AMNH>{{BioRef|ASW6 |title=''Hyloscirtus tolkieni'' Sánchez-Nivicela, Falcón-Reibán, and Cisneros-Heredia, 2023 |url=https://amphibiansoftheworld.amnh.org/Amphibia/Anura/Hylidae/Hylinae/Hyloscirtus/Hyloscirtus-tolkieni |access-date=February 19, 2023}}</ref><ref name=Des>{{cite journal|url=https://zookeys.pensoft.net/article/90290/|accessdate=February 19, 2023|title=A new stream treefrog of the genus Hyloscirtus (Amphibia, Hylidae) from the Río Negro-Sopladora National Park, Ecuador|journal=ZooKeys|author1=expand article infoJuan C. Sánchez-Nivicela|author2= José M. Falcón-Reibán|author3= Diego F. Cisneros-Heredia|date=19 January 2023 |issue=1141 |type=full text|pages=75–92|doi=10.3897/zookeys.1141.90290|doi-access=free }}</ref><ref name=Amph>{{BioRef|amphibiaweb |title= ''Hyloscirtus tolkieni'' Sánchez Nivicela, Falcón & Cisneros-Heredia, 2023 |author1= |editor1= |date= |language= |url=https://amphibiaweb.org/species/9663 |access-date=February 19, 2023}}</ref> The adult female frog is 64.9 mm long from [[snout-vent length|nose to rear end]].<ref name=Des /> It is gray-green in color with yellow and black marks. The iris of the eye is pink and black in color. There are yellow and black spots on the belly and sides too.<ref name=Reptil