Gastrophrynoides immaculatus Chan, Grismer, Norhayati, and Daicus, 2009, Zootaxa, 2124: 65. Holotype: HC 00279, by original designation. Type locality: "Gunung Besar Hantu, Negeri Sembilan, Peninsular Malaysia . . . at an elevation of 800-1400 meters a.s.l.".
Tung's Narrow-mouthed Frog (original publication).
Known from the type locality in Gunung Besar Hantu, Negeri Sembilan, Peninsular Malaysia.
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