Megalophrys montana var. aceras Boulenger, 1903, in Annandale and Robinson (eds.), Fasciculi Malayenses, 2(1): 131-132. Type(s): Not stated; presumably BMNH or ZRC; clearly including animal figured on pl. 5, fig. 1 of the original publication. Type locality: "Bukit Besar", 2500 feet elevation, Perak, Malay Peninsula, Malaysia.
Megalophrys aceras — Smith, 1926, Proc. Zool. Soc. London, 1926: 983.
Megophrys aceras — Smith, 1930, Bull. Raffles Mus., 3: 132.
Megophrys (Megophrys) aceras — Dubois, 1980, Bull. Mens. Soc. Linn. Lyon, 49: 472.
Panophrys aceras — Rao and Yang, 1997, Asiat. Herpetol. Res., 7: 98-99. Tentative arrangement.
Megophrys (Xenophrys) aceras — Dubois and Ohler, 1998, Dumerilia, 4: 14.
Xenophrys aceras — Khonsue and Thirakhupt, 2001, Nat. Hist. J. Chulalongkorn Univ., 1: 75. Ohler, 2003, Alytes, 21: 23; by implication; Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 17.
Perak Spadefoot Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 86).
White Breastgland Spine-eyed Frog (Nutphund, 2001, Amph. Thailand: 86).
Yellow Horn Frog (Nutphund, 2001, Amph. Thailand: 86).
Malayan Horned Frog (Chan-ard, 2003, Photograph. Guide Amph. Thailand: 82).
Peninsular Thailand and Malaya.
Accounta provided by Bourret, 1942, Batr. Indochine: 192-194, and Taylor, 1962, Univ. Kansas Sci. Bull., 43: 287-290. See also Dring, 1979, Bull. Brit. Mus. (Nat. Hist.), Zool., 34: 184. See brief account and photo by Manthey and Grossmann, 1997, Amph. Rept. Südostasiens: 79-80. Nutphund, 2001, Amph. Thailand: 86, provided a brief characterization and photograph (as Megophrys aceras). Chan-ard, 2003, Photograph. Guide Amph. Thailand: 82-83, provided a very brief account, map for Thailand, and photograph. Grismer, Youmans, Wood, Ponce, Wright, Jones, Johnson, Sanders, Gower, Yaakob, and Lim, 2006, Hamadryad, 30: 61-74.
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