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

Dendropsophus rossalleni (Goin, 1959)

Class: Amphibia > Order: Anura > Family: Hylidae > Subfamily: Hylinae > Genus: Dendropsophus > Species: Dendropsophus rossalleni

Hyla alleni Goin, 1957, J. Washington Acad. Sci., 47: 60. Holotype: UF 8501, by original designation. Type locality: "near Leticia, Amazonas Comisaria, Colombia". Secondary junior homonym of Scytopis alleni Cope, 1870.

Hyla rossalleni Goin, 1959, Copeia, 1959: 340. Replacement name for Hyla alleni Goin, 1957.

Dendropsophus rossalleni — Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 91.

English Names

Ross Allen's Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 57).

Distribution

Amazon Basin of Brazil (Acre, Amazonas, and Pará), Colombia (Amazonas), and Peru (Loreto and Ucayali), below 200 m elevation; expected in Amazonian Bolivia.

Geographic Occurrence

Natural Resident: Brazil, Colombia, Peru

Likely/Controversially Present: Bolivia

Comment

Duellman, 1978, Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 65: 162–163, provided a brief account including characterization of tadpole. Rodríguez and Duellman, 1994, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 22: 37, provided a brief account for the Iquitos region of northeastern Peru as Hyla rossalleni. See De la Riva and Duellman, 1997, Amphibia-Reptilia, 18: 433-436. See comment under Hyla leali. De la Riva, Köhler, Lötters, and Reichle, 2000, Rev. Esp. Herpetol., 14: 57, and Köhler, 2000, Bonn. Zool. Monogr., 48: 69, consider this species possibly to occur in Bolivia. Likely within the Hyla parviceps group according to Duellman, 2001, Hylid Frogs Middle Am., Ed. 2: 859. In the Dendropsophus leucophyllatus group of Faivovich, Haddad, Garcia, Frost, Campbell, and Wheeler, 2005, Bull. Am. Mus. Nat. Hist., 294: 91. Lynch, 2005, Rev. Acad. Colomb. Cienc. Exact. Fis. Nat., 29: 581-588, provided a record for southeastern Colombia. Lynch and Suárez-Mayorga, 2011, Caldasia, 33: 235–270, illustrated the tadpole and included the species in a key to the tadpoles of Amazonian Colombia. Zimmerman, 1983, Herpetologica, 39: 235–246, reported on advertisement call, as Hyla rossalleni. Metcalf, Marsh, Torres Pacaya, Graham, and Gunnels, 2020, Herpetol. Notes, 13: 753–767, reported the species from the Santa Cruz Forest Reserve, Loreto, northeastern Peru. In the Dendropsophus leucophyllatus group of Orrico, Grant, Faivovich, Rivera-Correa, Rada, Lyra, Cassini, Valdujo, Schargel, Machado, Wheeler, Barrio-Amorós, Loebmann, Moravec, Zina, Solé, Sturaro, Peloso, Suárez, and Haddad, 2021, Cladistics, 37: 73–105. Schiesari, Rossa-Feres, Menin, and Hödl, 2022, Zootaxa, 5223: 57–58, detailed larval morphology and natural history. Crnobrna, Santa-Cruz Farfan, Gallegos, López-Rojas, Llanqui, Panduro Pisco, and Kelsen Arbaiza, 2023, Check List, 19: 443, provided a record from Ucayali Department, central-eastern Peru.

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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
For access to available specimen data for this species, from over 350 scientific collections, go to Vertnet.