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

Pelobatrachus stejnegeri (Taylor, 1920)

Class: Amphibia > Order: Anura > Family: Megophryidae > Subfamily: Megophryinae > Genus: Pelobatrachus > Species: Pelobatrachus stejnegeri

Megalophrys stejnegeri Taylor, 1920, Philipp. J. Sci., 16: 347. Holotype: EHT F315, by original designation; now CM 3394 according to McCoy and Richmond, 1966, Ann. Carnegie Mus., 38: 247. Type locality: "Bunawan, Agusan [Province], Mindanao", Philippines.

Megophrys monticola stejnegeri — Inger, 1954, Fieldiana, Zool., 33: 224.

Megophrys steynegeri — Iskandar, 1998, Amph. Java Bali: 38. Incorrect subsequent spelling.

Megophrys stejnegeri — Delorme, Dubois, Grosjean, and Ohler, 2006, Alytes, 24: 17.

Megophrys (Pelobatrachus) stejnegeri — Mahony, Foley, Biju, and Teeling, 2017, Mol. Biol. Evol., 34: 754.

Pelobatrachus stejnegeri — Lyu, Zeng, Wang, Liu, Huang, Li, and Wang, 2021, Zootaxa, 4927: 39.

Common Names

Mindanao Horned Frog (IUCN; Diesmos, del Prado, Kim, Caguimbal, Venturina, Lorenzo, and Diesmos, 2026, ZooKeys, 1269: 309).

Distribution

Forest-floor habitats on Basilan, Biliran, Bohol, Dinagat, Leyte, Samar, and Mindanao islands, Philippines.

Geographic Occurrence

Natural Resident: Philippines

Endemic: Philippines

Comment

Removed from the synonymy of Megophrys montana by Iskandar, 1998, Amph. Java Bali: 38, where it had been placed by Inger, 1954, Fieldiana, Zool., 33: 224. 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: 438. See brief notes for Mindanao, Philippines, by Sanguila, Cobb, Siler, Diesmos, Alcala, and Brown, 2016, ZooKeys, 624: 33. See comments by Baron, Marin, Logramonte, and Mohagan, 2021, Asian Herpetol. Res., 12: 76–87, as Megophrys stejnegeri. Flores, Diesmos, and Nuñeza, 2023, Raffles Bull. Zool., 71: 658–668, discussed larval morphology and identification. Rosales, Yu, and Nanual, 2023, Davao Res. J., 14: 50–65, reported on distribution and habitat with special reference to the Mt. Hamiguitan Range Wildlife Sanctuary and surrounding areas of Mindanao. Flores, Mondejar, Caballero, Maceda, Olowa, and Nuñeza, 2025, Biodiversitas, 26: 3769–3780, discussed the habitat in Mount Gutom Protected Landscape on Zamboanga del Norte, Mindanao, Philippines. Plaza, Seronay, Ruales, Bantilan, Abucayon, Naling, and Gamalinda, 2025, Asian Herpetol. Res., 16: 331–359, reported the species from Tinuy-an Falls Protected Landscape, southeastern Mindanao, Philippines. Diesmos, del Prado, Kim, Caguimbal, Venturina, Lorenzo, and Diesmos, 2026, ZooKeys, 1269: 303–328, discussed the range on Samar I., Philippines. Sanguila, Labaja, Bernstein, and Brown, 2026, ZooKeys, 1272: 203–251, reported the species (as Megophrys stejnegeri) from the Agusan Marsh Wildlife Sanctuary, eastern Mindanao I., Philippines. Baguio and Nuñeza, 2026, Internatl. J. Multidiscipl. Res., 8: 1–19, discussed habitat preference in the Mt. Sumagaya Range, Misamis Oriental, Mindanao, Philippines.

External links:

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For access to general information see Wikipedia
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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