Hyalinobatrachium yaku Guayasamin, Cisneros-Heredia, Maynard, Lynch, Culebras, and Hamilton, 2017

Class: Amphibia > Order: Anura > Family: Centrolenidae > Subfamily: Hyalinobatrachinae > Genus: Hyalinobatrachium > Species: Hyalinobatrachium yaku

Hyalinobatrachium yaku Guayasamin, Cisneros-Heredia, Maynard, Lynch, Culebras, and Hamilton, 2017, ZooKeys, 673: 5. Holotype: MZUTI 5001, by original designation. Type locality: "from a stream affluent of the Kallana river (1.4696°S, 77.2784°W, 325 m), nearby the Kichwa community of Kallana, province of Pastaza, Ecuador".  http://zoobank.org/93A045E0-130D-4217-B20F-60CB55510B06 

Common Names

Yaku Glassfrog (original publication; Coloma and Duellman, 2025, Amph. Ecuador. Vol. 4: xxix). 

Rana de Cristal Yaku (Coloma and Duellman, 2025, Amph. Ecuador. Vol. 4: xxix).

Distribution

Known from three localities in Amazonian Ecuador at elevations of 297 to 363 m: 1) Kallan in Pastaza Province; 2) Ahuano, Napo Province; and 3) San Jose de Payamino in Orellana; likely extending into adjacent Peru. 

Geographic Occurrence

Natural Resident: Ecuador

Likely/Controversially Present: Peru

Endemic: Ecuador

Comment

The sister of Hyalinobatrachium pellucidum according to the original publication. Guayasamin, Cisneros-Heredia, McDiarmid, Peña, and Hutter, 2020, Diversity, 12 (222): 139–142, provided a detailed account, including adult morphology, advertisement call, relationships, natural history, and conservation status. J. M. Guayasamin, L. A. Coloma, and A. Terán-Valdez in Coloma and Duellman, 2025, Amph. Ecuador. Vol. 4: 254–256, provided an account, with photographs, which summarized identification, adult morphology, systematics, natural history, distribution (including a dot map), conservation, and (on p. 408) vocalization.

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