Hyla grandisonae Goin, 1966, Q. J. Florida Acad. Sci., 29: 39. Holotype: BMNH 1938.10.3.25, by original designation. Type locality: "in the forest at Mazaruni, British Guiana [= Guyana]".
Dendropsophus grandisonae — Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 93.
Mazaruni Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 55).
Known only from the type locality in the lowlands of Guyana.
In the Hyla parviceps group according to Duellman, 2001, Hylid Frogs Middle Am., Ed. 2: 859, who stated the distribution to be "lowlands of the Guianan Region in northeastern South America". In the Dendropsophus parviceps group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 93.
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