Ranitomeya hwata Twomey, Melo-Sampaio, Brown, Castroviejo-Fisher, Gagliardi-Urrutia, Padial, Gutiérrez, and Chaparro, 2025

Class: Amphibia > Order: Anura > Superfamily: Dendrobatoidea > Family: Dendrobatidae > Subfamily: Dendrobatinae > Genus: Ranitomeya > Species: Ranitomeya hwata

Ranitomeya hwata Twomey, Melo-Sampaio, Brown, Castroviejo-Fisher, Gagliardi-Urrutia, Padial, Gutiérrez, and Chaparro Auza, 2025, Zootaxa, 5701: 433. Holotype: MNRJ 91674, by original designation. Type locality: "Fazenda Experimental Catuaba, Senador Guiomard, state of Acre, Brazil (10.0727°S, 67.6239°W), 200 m elevation." ZooBank Publication registration: 8DEB156C-640C-43FF-9314-4F2E7FFF3A73

Common Names

None noted. 

Distribution

Distributed throughout much of the state of Acre, Brazil, and extends into southeastern Peru in Ucayali department near the village of Sepahua; known from one site in Amazonas, Brazil (Reserva Extrativista Arapixi), Pando department in northern Bolivia, and from Rio Acre (which forms the border of Acre and Madre de Dios), making its presence in Madre de Dios department of Peru a virtual certainty. Occurs at elevations ranging from 190 to 356 m. 

Geographic Occurrence

Natural Resident: Bolivia, Brazil, Peru

Comment

In the Ranitomeya vanzolinii group according to the original publication, where comparative adult and larval morphology, advertisement call, molecular markers, a dot map of its distribution, as well as sorting earlier literature under different taxonomic names. Most recently this species was considered to be outlying eastern populations of Ranitomeya sirensis. Recorded in Bolivia (as Dendrobates biolat) by De la Riva, Köhler, Lötters, and Reichle, 2000, Rev. Esp. Herpetol., 14: 57, Köhler, 2000, Bonn. Zool. Monogr., 48: 69; and Maldonado-M. and Reichle, 2007, Kempffiana, 3: 13-17. Melo-Sampaio and Souza, 2009, Herpetol. Rev., 40: 447, provided the first record (as Ranitomeya biolat) for Acre, Brazil. França and Venâncio, 2010, Biotemas, 23: 71–84, provided a record (as Ranitomeya biolat) for the municipality of Boca do Acre, Amazonas, with a brief discussion of the range. Crnobrna, Santa-Cruz Farfan, Gallegos, López-Rojas, Llanqui, Panduro Pisco, and Kelsen Arbaiza, 2023, Check List, 19: 441, provided a record (as Ranitomeya sirensis) from Ucayali Department, central-eastern Peru. 

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