Chiasmocleis antenori (Walker, 1973)

Class: Amphibia > Order: Anura > Family: Microhylidae > Subfamily: Gastrophryninae > Genus: Chiasmocleis > Species: Chiasmocleis antenori

Syncope antenori Walker, 1973, Occas. Pap. Mus. Nat. Hist. Univ. Kansas, 20: 3. Holotype: KU 124009, by original designation. Type locality: "Puerto Libre, Río Aguarico, 570 m, Provincia Napo, Ecuador".

Chiasmocleis antenori — Peloso, Sturaro, Forlani, Gaucher, Motta, and Wheeler, 2014, Bull. Am. Mus. Nat. Hist., 386: 33. 

Chiasmocleis (Syncope) antenori — de Sá, Tonini, van Huss, Long, Cuddy, Forlani, Peloso, Zaher, and Haddad, 2018 "2019", Mol. Phylogenet. Evol., 130: 206. 

Common Names

Antenor's Snouted Frog (Coloma and Duellman, 2025, Amph. Ecuador. Vol. 2: xxxiv). 

Ranita Hocicuda de Antenor (Spanish: Coloma and Duellman, 2025, Amph. Ecuador. Vol. 2: xxxiv).

Ecuador Silent Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 93).

Distribution

Amazonian Ecuador in the Provinces of Orellana, Pastaza, Morona Santiago, Zamora Chinchipe, Napo, and Sucumbíos, Ecuador, 223_1305 m elevation; Amazonian Peru in the provinces of Huánuco, Loreto, San Martín, Cusco and Madre de Dios; adjacent Acre, Brazil; expected in Amazonian Colombia. 

Geographic Occurrence

Natural Resident: Brazil, Ecuador, Peru

Likely/Controversially Present: Colombia

Comment

von May, Santa-Cruz Farfan, and Jennings, 2007, Herpetol. Rev., 38: 476, provided a record from Madre de Dios, Peru. Duellman, 1978, Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 65: 192–127, provided a brief account including characterization. Rodríguez and Duellman, 1994, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 22: 76, provided a brief account for the Iquitos region of northeastern Peru. Krügel and Richter, 1995, Copeia, 1995: 955–963, reported on larval morphology. Bernarde, Machado, and Turci, 2011, Biota Neotrop., 11: 117–144, reported specimens from Reserva Extrativista Riozinho da Liberdade, Acre, Brazil. Morales and Vargas, 2003, Herpetol. Rev., 34: 203–206, reported on vocalization. Peloso, Sturaro, Forlani, Gaucher, Motta, and Wheeler, 2014, Bull. Am. Mus. Nat. Hist., 386: 33–34, provided an account and implied some controversy over the identity of some Peruvian records as well as placing it in the Chiasmocleis hudsoni clade. See brief account for the Manu region, Peru, by Villacampa-Ortega, Serrano-Rojas, and Whitworth, 2017, Amph. Manu Learning Cent.: 242–243. Coloma and Duellman, 2025, Amph. Ecuador. Vol. 2: 18–20, provided an account with photographs which summarized identification, adult and larval morphology, systematics, natural history, distribution (including a dot map for Ecuador), and conservation.  

External links:

Please note: these links will take you to external websites not affiliated with the American Museum of Natural History. We are not responsible for their content.