Linnaeus, C. 1758. Systema naturae per regna tria naturae, secundum classes, ordines, genera, species sum characteribus, differentiis, synonymis, locis. Edition 10th 1:1–824.

Boulenger, G. A. 1899b. Descriptions of new reptiles and batrachians collected by Mr. P.O. Simons in the Andes of Ecuador. Annals and Magazine of Natural History 4: 454–457.

Hartert, E. 1898. On a collection of birds from North-Western Ecuador, collected by Mr. W. F. H. Rosenberg. Novitates Zoologicae 5: 477–505.

Boulenger, G. A. 1898. An account of the reptiles and batrachians collected by Mr. W. F. H. Rosenberg in western Ecuador. Proceedings of the Zoological Society of London 1898: 107–126.

Wolf, T. 1892. Geografía y geología del Ecuador. Leipzig: Tipografía de F. A. Brockhaus.

Steindachner, F. 1892. Über zwei noch unbeschriebene Nototrema-Arten aus Ecuador und Bolivia. Sitzungsberichten der kaiserl. Akademie der Wissenschaften in Wien 101: 1–6.

Boulenger, G. A. 1882. Account of the reptiles and batrachians collected by Mr. Edward Whymper in Ecuador in 1879–80. Annals and Magazine of Natural History, Series 5 9:457–467.

Boulenger, G. A. 1882a. Account of the reptiles and batrachians collected by Mr. Edward Whymper in Ecuador in 1879–80. Annals and Magazine of Natural History 5: 457–467.

Peters, W. C. H. 1882. Den Namen der Batrachiergattung Hylonomus in Hyloscirtus zu ändern und legte zwei neue Arten von Schlangen, Microsoma notatum, und Liophis ygraecum. Sitzungsberichte der Gesellschaft naturforschender Freunde zu Berlin 1882: 127–129.

Jiménez de la Espada, M., F. de P. Martínez, M. Almagro, and J. Isern. 1866. “1998”. El gran viaje. M. A. Cabodevilla, ed. Quito, Ecuador: Ediciones Abya-Yala.

Peters, W. C. H. 1862a. Eine neue gattung von laubfröschen, Plectromantis, aus Ecuador. Monatsberichte der Königlich Akademie der Wissenschaften zu Berlin 1862: 232–233.

Günther, A. C. 1859. Second list of cold-blooded Vertebrata collected by Mr. Fraser in the Andes of western Ecuador. Proceedings of the Zoological Society of London 1859: 402–422.

Cornalia, E. B. M. 1849. Vertebratorum Synopsis in Musaeo Mediolanense extantium quae per novum Orbem Cajetanas Osculati collegit Annis 1846-47-48. Speciebus novis vel minus cognitis adjectis, nec non Descriptionibus atque Iconibus illustratis. Corbetta: Mediolani.

de Velasco, J. 1789. Historia del Reino de Quito en la América Meridional, escrita por el presbítero Dn. Juan de Velasco, nativo del mismo reino. Tomo I y Parte I que contiene la historia natural. Quito: Imprenta del Gobierno, por Suarez de Valdés, 1841–1844.