Nanohyla annamensis (Smith, 1923)

Class: Amphibia > Order: Anura > Family: Microhylidae > Subfamily: Microhylinae > Genus: Nanohyla > Species: Nanohyla annamensis

Microhyla annamensis Smith, 1923, J. Nat. Hist. Soc. Siam, 6: 47. Holotype: BMNH 1923.5.14.10 according to Parker, 1934, Monogr. Frogs Fam. Microhylidae: 130; now BMNH 1947.2.11.60, by museum records. Type locality: "Sui Kat, 1000 metres altitude, Langbian plateau, S. Annam", Vietnam.

Microhyla (Microhyla) annamensisDubois, 1987, Alytes, 6: 3.

Nanohyla annamensis — Gorin, Scherz, Korost, and Poyarkov, 2021, Zoosyst. Evol., 97: 38. 

English Names

Vietnam Rice Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 90).

Annam Narrow-mouthed Frog (Nutphund, 2001, Amph. Thailand: 160; Neang and Holden, 2008, Field Guide Amph. Cambodia: 62).

Annam Chorus Frog (Chan-ard, 2003, Photograph. Guide Amph. Thailand: 100).

Minute Narrow-mouth Frog (Nguyen, Ho, and Nguyen, 2005, Checklist Amph. Rept. Vietnam: 44).

Annam Pigmy Narrow-mouth Frog (Poyarkov, Nguyen, Popov, Geissler, Pawangkhanant, Neang, Suwannapoom, and Orlov, 2021, Russ. J. Herpetol., 28 (3A): 43). 


Known with confidence only from the Langbian Plateau and surrounding mountain systems of Vietnam and adjacent Laos; records from Thailand (Khao Sebab, Chantaburi Province) and Cambodia are questionable (see comment). 


Subgenus Microhyla, Microhyla berdmorei group. Related to Microhyla berdmorei, according to the original publication. See comment under Microhyla borneesis. See accounts by Bourret, 1942, Batr. Indochine: 513–514, and Taylor, 1962, Univ. Kansas Sci. Bull., 43: 542–543. Orlov, Murphy, Ananjeva, Ryabov, and Ho, 2002, Russ. J. Herpetol., 9: 99, provided a statement of range. Reported for southwestern Cambodia by Ohler, Swan, and Daltry, 2002, Raffles Bull. Zool., 50: 465–481. Nutphund, 2001, Amph. Thailand: 170, provided a brief characterization and photograph, which Ohler, 2003, Alytes, 21: 102, attributed to Microhyla berdmorei. Stuart, 1999, in Duckworth et al. (eds.), Wildlife in Lao PDR: 49, reported the species in Laos. Chan-ard, 2003, Photograph. Guide Amph. Thailand: 100–101, provided a very brief account, map for Thailand, and photograph. Neang and Holden, 2008, Field Guide Amph. Cambodia: 62, provided a photograph, brief account of identification, ecology, and range in Cambodia. Chan-ard, Cota, and Makchai, 2011, Amph. E. Region Thailand: 130, detailed the distribution in Thailand. See comparative account by Poyarkov, Vassilieva, Orlov, Galoyan, Tran, Le, Kretova, and Geissler, 2014, Russ. J. Herpetol., 21: 94–101, who considered records of this montane species from Cambodia and Thailand as doubtful, apparently on biogeographic grounds. Niyomwan, Srisom, and Pawangkhanant, 2019, Field Guide Amph. Thailand: 220, provided a brief account (photograph, habitat, and range) for Thailand (in Thai). Gorin, Solovyeva, Hasan, Okamiya, Karunarathna, Pawangkhanant, de Silva, Juthong, Milto, Nguyen, Suwannapoom, Haas, Bickford, Das, and Poyarkov, 2020, PeerJ, 8 (e9411): 1–47, placed this species in their Microhyla annectens group. Hoang, Nguyen, Ninh, Luong, Pham, Nguyen, Orlov, Chen, Wang, Ziegler, and Jiang, 2021, ZooKeys, 1036: 47–74, provided placement in a mtDNA tree.   

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