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

Megastomatohyla mixe (Duellman, 1965)

Class: Amphibia > Order: Anura > Family: Hylidae > Genus: Megastomatohyla > Species: Megastomatohyla mixe

Hyla mixe Duellman, 1965, Herpetologica, 21: 32. Holotype: KU 87110, by original designation. Type locality: "a stream 4.2 kilometers by road south of Campamento Vista Hermosa, (near latitude 17° 50′ N and longitude 96° 20′ W), at an elevation of 1,800 meters on the northern slope of Sierra de Juárez, Distrito de Ixtlán, Oaxaca, México".

Megastomatohyla mixe — Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 104.

Common Names

Mixe Treefrog (Liner, 1994, Herpetol. Circ., 23: 23; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 56; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 17).

Distribution

Elevations of 1590–1800 m in the Sierra Juárez and Sierra Madre del Sur in Oaxaca, Mexico.

Geographic Occurrence

Natural Resident: Mexico

Endemic: Mexico

Comment

See Duellman, 1970, Monogr. Mus. Nat. Hist. Univ. Kansas: 425-427. See photograph, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 262. Martínez-Campos, Wedow, Huerta-García, Corona-Garduño, La Forest, and Grünwald, 2025, Bull. Chicago Herpetol. Soc., 60: 149-152, reported the species from a new locality in the Sierra Juárez, in the Municipio de Ixtlán de Juárez, Oaxaca, Mexico, the first collection record in 50 years. Ballesteros-Barrera, Tapia-Pérez, Leyte-Manrique, Martínez-Bernal, Zárate-Hernández, Vargas-Miranda, Martínez-Coronel, and Ortiz-Burgos, 2026, Climate, 14(114): 1–22, modeled potential distribution modifications under climate change.

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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 related information on conservation and images as well as observations see iNaturalist