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

Kaloula mediolineata Smith, 1917

Class: Amphibia > Order: Anura > Family: Microhylidae > Subfamily: Microhylinae > Genus: Kaloula > Species: Kaloula mediolineata

Callula mediolineata Smith, 1917, J. Nat. Hist. Soc. Siam, 2: 224. Syntypes: BMNH 1916.4.17.3 (now 1947.2.10.57, from Nong Pling, Paknampo) and, 1917.5.14.41–44 (now 1947.2.10.58–61, from Prachuap, Kirikam), according to museum records, and 1921.4.1.279–283, according to Parker, 1934, Monogr. Frogs Fam. Microhylidae: 82. Type locality: "Prachuap Kirikan, S. W. Siam [Thailand]".

Kaloula mediolineata — Parker, 1934, Monogr. Frogs Fam. Microhylidae: 81.

Common Names

Siam Bullfrog (Poyarkov, Nguyen, Popov, Geissler, Pawangkhanant, Neang, Suwannapoom, and Orlov, 2021, Russ. J. Herpetol., 28 (3A): 39).

Siam Narrowmouth Toad (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 90).

White-backed Bullfrog (Nutphund, 2001, Amph. Thailand: 161).

Stripe-back Bullfrog (Nutphund, 2001, Amph. Thailand: 161).

Median-striped Bullfrog (Chan-ard, 2003, Photograph. Guide Amph. Thailand: 98).

Middle Back-stripe Bullfrog (Nguyen, Ho, and Nguyen, 2005, Checklist Amph. Rept. Vietnam: 43).

Distribution

Southern mainland (non-peninsular) Thailand and into northern Cambodia (Phnom Kulen National Park) and southern Vietnam (Dac Lac Province and Phu Qui Island, Bin Thuan Province) through intervening Laos (Sikhottabong District, Vientiane Municipality).

Geographic Occurrence

Natural Resident: Cambodia, Laos, Thailand, Vietnam

Comment

See accounts by Bourret, 1942, Batr. Indochine: 485–486, and Taylor, 1962, Univ. Kansas Sci. Bull., 43: 566–569. Heyer, 1971, Fieldiana, Zool., 58: 83–91, described the tadpole from Thailand. Orlov, Murphy, Ananjeva, Ryabov, and Ho, 2002, Russ. J. Herpetol., 9: 99, provided the Vietnam distribution without reference to voucher specimens. Nutphund, 2001, Amph. Thailand: 161, provided a brief characterization and photograph. Stuart, 1999, in Duckworth et al. (eds.), Wildlife in Lao PDR: 49, reported the species in Laos. Chan-ard, 2003, Photograph. Guide Amph. Thailand: 98–99, provided a very brief account, map for Thailand, and photograph. See statement of geographic range, habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 626. Chan-ard, Cota, and Makchai, 2011, Amph. E. Region Thailand: 40–41, provided a photograph and brief account for eastern Thailand, and (p. 130), detailed the distribution in Thailand. Phung, Nguyen, Rauhaus, and Ziegler, 2013, Herpetol. Notes, 6: 463–465, provided a record from Phu Qui Island, Binh Thuan Province, southern Vietnam. Niyomwan, Srisom, and Pawangkhanant, 2019, Field Guide Amph. Thailand: 214–215, provided a brief account (photographs, habitat, and range) for Thailand (in Thai). Geissler, Hartmann, Ihlow, Neang, Seng, Wagner, and Böhme, 2019, Cambodian J. Nat. Hist., 2019: 40–63, provided a record from Phnom Kulen National Park, northern Cambodia. Vassilieva, 2021, Zootaxa, 4952: 71–86, described larval morphology. Huynh, Quang, and Nguyen, 2024, Biomed. Biotech. Res. J., 8: 532–537, reported on the complete mtDNA genome and the placement of the species within Kaloula, although only sampling 6 out of 20 species in the genus. Stuart, Seateun, Sivongxay, and Phimmachak, 2025 "2024", in Wildlife Lao PDR: 36, summarized literature, taxonomy, habitat, and detailed range for Laos.

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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