Two New Frogs of the Genus Fleutherodactylus from Eastern Ecuador (Amphibia: Leptodactylidae)

Resumen

Two new species of the leptodactylid frog genus Eleuth- erodactytus (E. croceoinguinis and E. variabilis) are named from the upper Amazon lowlands of Ecuador. Both are small species whose re- lationships are obscure; they do not appear to be closely related to one another. Eleutherodactylus variabilis exhibits extensive pattern poly- morphism whereas E. croceoinguinis is uniform in coloration. Relatively few species of Eleutherodactylus have been recorded from the Ama- zonian lowlands of Brasil, Colombia, Ecuador, and Peru. The vast majority of the frogs of the genus described from South America are Andean or from the Pacific versant of Colombia and Ecuador, and the Caribbean versant of Venezuela. Nearly all of the species known to date from the upper Amazonian lowlands were reported by Andersson (1945), Lutz and Kloss (1952), Melin (1941), and Shreve (1935)o Field work by parties from the University of Kansas Museum of Natural His-