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

Ameerega yoshina Brown and Twomey, 2009

Class: Amphibia > Order: Anura > Superfamily: Dendrobatoidea > Family: Dendrobatidae > Subfamily: Colostethinae > Genus: Ameerega > Species: Ameerega yoshina

Ameerega yoshina Brown and Twomey, 2009, Zootaxa, 2049: 10. Holotype: MUSM24945, by original designation. Type locality: "Departamento Loreto, Peru, 17.5 km NE Contamana at the western foot of the Serranía de Contamana, 310 m elevation, 7° 11′7.43″ S, 74° 57′ 13.12″ W. Found near El Unión, on the ground near a small creek flowing into the coldwater stream."

Common Names

Phantom Poison Frog (Geralds, Twomey, Deutsch, Chávez, and Brown, 2026, Zootaxa, 5759: 312).

Distribution

Known from two premontane regions with an elevational range of 195–873 m: east of Ucayali River in the Serranía de Contamana (near the Sierra del Divisor National Park) and then west of the Ucayali River in the northern Cordillera Azul. Within Cordillera Azul it is found at two disjunct locations: Callanayacu in the northern Cordillera Azul near the Huallaga River, and near Shamboyacu at two isolated sites, Loreto, Peru.

Geographic Occurrence

Natural Resident: Peru

Endemic: Peru

Comment

The advertisement call was described in the original publication as well as external morphology and natural history. In the Ameerega bassleri species group of Guillory, French, Twomey, Chávez, Prates, von May, De la Riva, Lötters, Reichle, Serrano-Rojas, Whitworth, and Brown, 2020, Mol. Phylogenet. Evol., 142 (106638): 1–13.. Geralds, Twomey, Deutsch, Chávez, and Brown, 2026, Zootaxa, 5759: 295–320, revised the Ameerega bassleri group, including a review of adult and larval morphology, systematics, phylogenetics, distribution (including a dot map of the range), and advertisement calls of the contained species.

External links:

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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