Sphenophryne variabilis Boulenger, 1896, Ann. Mag. Nat. Hist., Ser. 6, 18: 64. Syntypes: "numerous specimens"—including BMNH 96.4.29.75-84 (according to Parker, 1934, Monogr. Frogs Fam. Microhylidae: 164); NHMB 1350 (presumably exchanged from BMNH) designated lectotype by Forcart, 1946, Verh. Naturforsch. Ges. Basel, 57: 134. Type locality: "Bonthain Peak, Celebes, 5000-6000 feet", Indonesia.
Oreophryne variabilis — Van Kampen, 1923, Amph. Indo-Austral. Arch.: 112.
Variable Cross Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 91).
Mounts Bonthain and Latimojong, southern Sulawesi, above 1000 m elevation, and Gunung Karua at 1200 m elevation, Indonesia.
Menzies, 2006, Frogs New Guinea & Solomon Is.: 203-204, provided a brief account. 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: 454.
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