Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
Single word	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

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) annamensis — Dubois, 1987, Alytes, 6: 3.

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

Microhyla (Nanohyla) annamensis — Mahony, Kamei, Brown, and Chan, 2024, Vert. Zool., Senckenberg, 74: 258, by implication.

Common 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).

Distribution

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).

Geographic Occurrence

Natural Resident: Cambodia, Laos, Thailand, Vietnam

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, Lê, 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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To search the NIH genetic sequence database, see GenBank
For additional information see AmphibiaWeb report
For information on conservation status and distribution see the IUCN Redlist
For information on distribution, habitat, and conservation see the Map of Life
For related information on conservation and images as well as observations see iNaturalist