Chaltenobatrachus grandisonae (Lynch, 1975)

Class: Amphibia > Order: Anura > Family: Batrachylidae > Genus: Chaltenobatrachus > Species: Chaltenobatrachus grandisonae

Telmatobius grandisonae Lynch, 1975, Bull. S. California Acad. Sci., 74: 160. Holotype: BMNH 1962.629, by original designation. Type locality: "the Plateau below the south peak, Puerto Eden, Wellington Island, Magallanes, Chile, 640 m."

Atelognathus grandisonaeLynch, 1978, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 72: 1-57.

Chaltenobatrachus grandisonaeBasso, Úbeda, Bunge, and Martinazzo, 2011, Zootaxa, 3002: 34.

English Names

Puerto Eden Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 70).


Rain forests and wetlands of the southern fjordlands and Andes in Patagonia, at least from 48° to 49° S, and from the level of Lago del Desierto, Chubut, Argentina (500 m a.s.l.) to very near the treeline (830 m).

Geographic Occurrence

Natural Resident: Argentina, Chile


Basso, 1997, in Rocek and Hart (eds.), Abstr. 3rd World Congress Herpetol.: 13, discussed phylogenetic relationships among the species and suggested that Atelognathus granidsonae might be the sister-taxon of Somuncuria + other Atelognathus. Evidence from the original paper naming Chaltenobatrachus suggested that this species is the sister of Atelognathus. Díaz-Páez, Alveal, Cisternas-Medina, and Ortiz, 2015, Check List, 11: 1–3, provided records from Chilean Patagonia and discussed the range. See Charrier, 2019, Anf. Bosques Centro Sur y Patagonia de Chile: 162–165, for account (morphology, habitat, natural history) and polygon distribution map. 

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