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

Hylarana annamitica (Sheridan and Stuart, 2018)

Class: Amphibia > Order: Anura > Family: Ranidae > Genus: Hylarana > Species: Hylarana annamitica

Sylvirana annamitica Sheridan and Stuart, 2018, PLoS One, 13(3: e0192766): 30. Holotype: FMNH 256535, by original designation. Type locality: "Laos, Khammouan Province, Nakai District, Nakai-Nam Theun National Protected Area (formerly Nakai-Nam Theun National Biodiversity Conservation Area), 17.9667 N, 105.5667 E, 700 m elev." Zoobank publication registration: 4CDDD642-D6FE-47E8-AC15-3F5AD0148F2B

Hylarana annamitica — Dubois, Ohler, and Pyron, 2021, Megataxa, 5: 549, by implication.

Hylarana (Pterorana) annamitica — Wu, Xu, Suwannapoom, Nguyen, Murphy, Papenfuss, Lathrop, Kilunda, Gao, Yuan, Chen, Zhang, Zhao, Wang, Rahman, Nneji, Zhao, Wang, Jin, Zhang, and Che, 2024 "2025", Mol. Phylogenet. Evol., 108223: 1–11, by implication.

Common Names

Annam Stream Frog (Poyarkov, Nguyen, Popov, Geissler, Pawangkhanant, Neang, Suwannapoom, and Orlov, 2021, Russ. J. Herpetol., 28 (3A): 52).

Distribution

Northern Vietnam southward through central Laos (northern part of Northern Annamites in Khammouan Province, 700 m) and central and northern Vietnam (Bac Kan, Vinh Phuc, Thanh Hoa, Nghe An, Ha Tinh, Hue, Ha Nam, and Quang Nam Provinces), with most of its distribution coinciding with the Annamite (= Xai Phou Luang or Day Truong Son) Mountains.

Geographic Occurrence

Natural Resident: Laos, Vietnam

Comment

The sister taxon of Sylvirana montosa according to the original publication. Poyarkov, Nguyen, Duong, Gorin, and Yang, 2018, PeerJ, 6 (e5771): 17, provided a record (as Sylvirana cf. annamitica) from Cuc Phuong National Park, Ninh Binh Province, Vietnam. Ziegler, Ong, Hoang, Pham, and Nguyen, 2022, Acad. J. Biol., 44: 114, referred their earlier record of Rana nigrovittata (Ziegler, 2002, Amph. Rept. Tieflandfeuchtwald–Schutzgebietes Vietnam: 1–342) from Ke Go Nature Reserve, Ha Tinh Province, Vietnam, to Sylvrana annamitica. Stuart, Seateun, Sivongxay, and Phimmachak, 2025 "2024", in Wildlife Lao PDR: 41, summarized literature, taxonomy, habitat, and detailed range for Laos. Pham, Nguyen, Phan, Le, Pham, and Pham, 2025, Biodiversity Data J., 13 (e159973): 1–25, reported the species from Ha Nam Provinces, northern Vietnam, and briefly discussed the range in Vietnam. Dau, Hoang, Do, Le, Trinh, Nguyen, and Pham, 2025, Amph. Rept. Conserv., 19: 79–98, reported the species from Pu Luong Nature Reserve, Tanh Hoa Province, Vietnam.

External links:

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For access to general information see Wikipedia
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For access to relevant technical literature search Google Scholar
For images search CalPhoto Images and Google Images
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 related information on conservation and images as well as observations see iNaturalist