Leptobrachella Smith, 1925

Class: Amphibia > Order: Anura > Family: Megophryidae > Genus: Leptobrachella
67 species

Nesobia Van Kampen, 1923, Amph. Indo-Austral. Arch.: 6. Type species: Leptobrachium natunae Günther, 1895, by monotypy. Synonymy with Leptobrachella by Dubois, 1980, Bull. Mens. Soc. Linn. Lyon, 49: 474. A junior homonym of Nesobia Ancey, 1887 (Mollusca).

Leptobrachella Smith, 1925, Sarawak Mus. J., 3: 27. Type species: Leptobrachella mjöbergi Smith, 1925, by monotypy.

Paramegophrys Liu, 1964, Unpub. 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 provided 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, Engl. Transl. Abstr. 30th Anniv. China Zool. Soc. Sci. Conf.: 258) does not include the name Paramegophrys nor any diagnosis of any new taxa (DRF).

Paramegophrys Liu, 1964, 4th Sichuan Med. Coll. Sci. Symp. Abstracts: 1. Type species: Leptobrachium pelodytoides Boulenger, 1893, by original designation. Unavailable name for for reason of having been provided in a meeting abstract (Article 9.9, International Code of Zoological Nomenclature, 1999), although this has been disputed by Fei and Ye, 2016, Amph. China, 1: 593. DRF is attempting to get a copy of the abstract book. 

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 with Leptolalax and discussion).

Leptolalax Dubois, 1980, Bull. Mens. Soc. Linn. Lyon, 49: 476. Type species: Leptobrachium gracile Günther, 1872, by original designation. Name coined explicitly as a subgenus of Leptobrachium. Synonymy by Chen, Poyarkov, Suwannapoom, Lathrop, Wu, Zhou, Yuan, Jin, Chen, Liu, Nguyen, Nguyen, Duong, Eto, Nishikawa, Matsui, Orlov, Stuart, Brown, Rowley, Murphy, Wang, and Che, 2018, Mol. Phylogenet. Evol., 124: 162. 

Leptolalax — Dubois, 1983, Alytes, 2: 147. Elevation to generic rank.

Lalax Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 14. Type species: Leptobrachium bourreti Dubois, 1983, by original designation. Coined as a subgenus of Leptolalax. 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.

English Names

Borneo Frogs (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 85).

Slender-armed Frogs (Ananjeva, Borkin, Darevsky, and Orlov, 1988, Dict. Amph. Rept. Five Languages: 106).

Asian Toads (Leptolalax [no longer recognized]: Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 86).

Metacarpal-tuberculed Toads (Leptolalax [no longer recognized]: Fei and Ye, 2016, Amph. China, 1: 592). 

Distribution

Southern China, northeastern India, and Myanmar through Thailand and Vietnam to Malaya and Borneo and Natuna Island.

Comment

Leptobrachella (prior to the synonymy of Leptolalax) was reviewed by Dring, 1983, Amphibia-Reptilia, 4: 89-102. Inger and Stuebing, 1992 "1991", Raffles Bull. Zool., 39: 102, and Malkmus, Manthey, Vogel, Hoffmann, and Kosuch, 2002, Amph. Rept. Mount Kinabalu: 89, provided a key to the species of Leptobrachella of Borneo, prior to the synonymy of Leptolalax. Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 13, provided characters suggested to be apomorphic with respect to Leptolalax, its purported sister taxon. Leptobrachella (in the sense of not including Leptolalax) was addressed by Pyron and Wiens, 2011, Mol. Phylogenet. Evol., 61: 543-583. Matsui, Eto, Nishikawa, Hamidy, Belabut, Ahmad, Panha, Khonsue, and Grismer, Curr. Herpetol., Kyoto, 36: 11–21, also presented an mtDNA tree of Leptobrachella and Leptolalax, finding the Leptobrachella imbedded within LeptolalaxLeptolalax was 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 of Leptolalax, 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 Leptolalax 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 LeptolalaxDelorme, 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 (now Lalos) is recognized. Fei, Hu, Ye, and Huang, 2009, Fauna Sinica, Amph. 2: 298–328, provided a key and accounts for the Chinese species of Leptolalax, as ParamegophrysDas, Tron, Rangad, and Hooroo, 2010, Zootaxa, 2339: 49, summarized the taxonomy of Leptolalax and ranges of the species as known at that time. Das and Deuti, 2011, Curr. Herpetol., Kyoto, 30: 69–73, provided comparative data for the species of Leptolalax known at the time. Pyron and Wiens, 2011, Mol. Phylogenet. Evol., 61: 543–583, did not address LeptolalaxOhler, Wollenberg, Grosjean, Hendrix, Vences, Ziegler, and Dubois, 2011, Zootaxa, 3147: 1–83, reviewed and revised the subgenus Lalos. Sung, Yang, and Wang, 2014, Asian Herpetol. Res., 5: 80–90, provided a molecular tree of a selection of species of LeptolalaxPoyarkov, Rowley, Gogoleva, Vassilieva, Galoyan, and Orlov, 2015, Zootaxa, 3931: 221–252, provided a Bayesian inference dendrogram of the species based on 1.083 kb of 16S rRNA mtDNA, that suggested that the subgenera Lalos and Leptolalax are monophyletic sister taxa. Rowley, Tran, Le, Dau, Peloso, Nguyen, Hoang, Nguyen, and Ziegler, 2016, Zootaxa, 4085: 63–102, reported on phylogenetics, comparative morphology and calls of the Leptolalax applebyi group of species. Matsui, Eto, Nishikawa, Hamidy, Belabut, Ahmad, Panha, Khonsue, and Grismer, Curr. Herpetol., Kyoto, 36: 11–21, also presented an mtDNA tree of Leptobrachella and Leptolalax, finding the Leptobrachella imbedded within LeptolalaxFei and Ye, 2016, Amph. China, 1: 591–611, reviewed the species of Leptolalax in China (as Paramegophrys) and provided accounts, photographs, and dot maps.Yuan, Sun, Chen, Rowley, Wu, Hou, Wang, and Che, 2017, Zootaxa, 4300: 551–570, provided a comparative table of morphological features for the species of Leptolalax north of the Isthmus of Kra. : 162–171, reported on the molecular phylogenetics of the group, found Leptolalax to be nonmonophyletic with respect to Leptobrachella, and placed Leptolalax into the synonymy of Leptobrachella

Contained taxa (67 sp.):

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