Paramegophrys Liu, 1965, Abstr. 30th Anniv. China Zool. Soc. Sci. Conf.: 197. Type species: Leptobrachium pelodytoides Boulenger, 1893, by original designation. Unavailable name for for reason of having been published in a meeting abstract (Article 9.9, International Code of Zoological Nomenclature, 1999) according to Dubois, Grosjean, Ohler, Adler, and Zhao, 2010, Zootaxa, 2493: 66. The English-translated abstract published in 1968 ( Liu, 1968 , Abstr. 30th Anniv. China Zool. Soc. Sci. Conf.: 258) does not include the name Paramegophrys nor any diagnosis of any new taxa (DRF).
Carpophrys Sichuan Biological Research Institute, 1977, Syst. Key Chinese Amph.: 30. Type species: Not designated. Unavailable name due to anonymous authorship (see Dubois, 1981, Bull. Mens. Soc. Linn. Lyon, 50: 182, and Dubois, Grosjean, Ohler, Adler, and Zhao, 2010, Zootaxa, 2493: 66, for synonymy and discussion).
Leptolalax Dubois, 1980, Bull. Mens. Soc. Linn. Lyon, 49: 476. Type species: Leptobrachium bourreti Dubois, 1983, by original designation. Name coined explicitly as a subgenus of Leptobrachium.
Leptolalax — Dubois, 1983, Alytes, 2: 147. Elevation to generic rank.
Lalax Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 14. Type species: Leptobrachium gracile Gunther, 1872, by original designation. Coined as a subgenus. Preoccupied by Lalax Hamilton, 1990 (Hemiptera).
Lalos Dubois, Grosjean, Ohler, Adler, and Zhao, 2010, Zootaxa, 2493: 66-68. Replacement name for Lalax Delorme, Dubois, Grosjean, and Ohler, 2006.
Asian Toads (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 86).
Southern China, northeastern India, and Myanmar through Thailand and Vietnam to Malaya and Borneo.
Originally named as a subgenus of Leptobrachium, the rank of the taxon was elevated to generic status by Dubois, 1983, Alytes, 2: 147-153. Inger, Stuebing, and Tan, 1995, Raffles Bull. Zool., 43: 115-131, provided discussion of two distinctive, but unnamed populations, from Borneo. Lathrop, 1997, Asiat. Herpetol. Res., 7: 68-79, noted that Leptolalax lacked any identifiable apomorphies. Malkmus, Manthey, Vogel, Hoffmann, and Kosuch, 2002, Amph. Rept. Mount Kinabalu: 98, provided a key to the species of Borneo. Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 14, provided characters suggested to be apomorphic to diagnose Leptolalax with respect to Leptobrachella. Within Leptolalax, Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 14-15, recognized two nominal subgenera, Lalax, suggested to be diagnosed on apomorphies, and Leptolalax, the plesiomorphic residue of the genus Leptolalax, once Lalax is recognized. Fei, Hu, Ye, and Huang, 2009, Fauna Sinica, Amph. 2: 298-328, provided a key and accounts for the Chinese species, as Paramegophrys. Das, Tron, Rangad, and Hooroo, 2010, Zootaxa, 2339: 49, summarized the taxonomy and ranges of the species as known at that time. Das and Deuti, 2011, Curr. Herpetol., 30: 69-73, provided comparative data for the species known at the time. Pyron and Wiens, 2011, Mol. Phylogenet. Evol., 61: 543-583, did not address this taxon. Ohler, Wollenberg, Grosjean, Hendrix, Vences, Ziegler, and Dubois, 2011, Zootaxa, 3147: 1-83, reviewed and revised the subgenus Lalos.
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