Phrynopus wettsteini (Parker, 1932)
| A review of the Andean leptodactylid frog genus Phrynopus John D Lynch (1975) Occasional Papers of the Museum of Natural History, The University of Kansas 35: 1-51 | |
| Leptodactylid frogs of the genus Eleutherodactylus from the Andes of southern Ecuador John D Lynch (1979) University of Kansas Natural History Museum Miscellaneous Publication 66: 1-62 | |
| The Systematic Status Of Syrrhophus juninensis Shreve (Anura, Leptodactylidae) D C Cannatella (1985) Proceedings of The Biological Society of Washington 98: 774-777 |