Ansonia muelleri (Boulenger, 1887)

Class: Amphibia > Order: Anura > Family: Bufonidae > Genus: Ansonia > Species: Ansonia muelleri

Bufo muelleri Boulenger, 1887, Ann. Mag. Nat. Hist., Ser. 5, 20: 52. Holotype: BMNH 1947.2.20.57 (formerly 1887.4.12.18), according to Inger, 1985, in Frost (ed.), Amph. Species World: 26. Type locality: "Mindanao, Philippine Islands".

Ansonia muelleriInger, 1954, Fieldiana, Zool., 33: 239.

English Names

Muller's Stream Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 39).


Mountains of central and western Mindanao and Dinagat Island, Philippines (see comment).

Geographic Occurrence

Natural Resident: Philippines

Endemic: Philippines


See Ross and Lazell, 1990, Philipp. J. Sci., 119: 259, for report of material from Dinagat I. See comment under Ansonia mcgregori. See account by Inger, 1954, Fieldiana, Zool., 33: 242–247. See photograph, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 158.Sanguila, Siler, Diesmos, Nuñeza, and Brown, 2011, Mol. Phylogenet. Evol., 61: 333–350, reported on the phylogeography of this species in Mindanao, noting at least four unnamed lineages, which to be named will require a restriction in type locality inasmuch as the species does not seem to be morphologically distinguishable. See account by Sanguila, Cobb, Siler, Diesmos, Alcala, and Brown, 2016, ZooKeys, 624: 15–17. See account by Baron, Marin, Logramonte, and Mohagan, 2021, Asian Herpetol. Res., 12: 76–87. Bedoya, Nuñeza, Amparado, Torres, and Leaño, 2019, IOP Conf. Ser.: Earth & Environm. Sci., 528 (012019): 1–7, reported on geographic variation in advertisement call. Pitogo, Saavedra, and Afuang, 2021, Philipp. J. Sci., 150: 1279–1306, regarded the Mount Busa population on Mindanao as an evolutionary significant unit and provided a brief description of natural history.   

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