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

Leptodactylus stenodema Jiménez de la Espada, 1875

Class: Amphibia > Order: Anura > Family: Leptodactylidae > Subfamily: Leptodactylinae > Genus: Leptodactylus > Species: Leptodactylus stenodema

Leptodactylus stenodema Jiménez de la Espada, 1875, Vert. Viaje Pacif. Verif. 1862–1865: 64. Syntypes: MNCN (2 specimens); MNCN 190 designated lectotype by Heyer and Peters, 1971, Proc. Biol. Soc. Washington, 84: 168; now numbered MNCN 1687 according to González-Fernández, 2006, Graellsia, 62: 140, and González-Fernández, García-Díez, and San Segundo, 2009, Spixiana, München, 32: 273. Type locality: "San José de Moti (Canton de Quíjos)", Napo, Ecuador. (This confirmed by González-Fernández, García-Díez, and San Segundo, 2009, Spixiana, München, 32: 273.)

Leptodactylus vilarsi Melin, 1941, Göteborgs K. Vetensk. Vitterh. Samh. Handl., Ser. B, 1: 52. Holotype: NHMG Ba. ex. 498, according to Heyer, 1979, Smithson. Contrib. Zool., 301: 14. Type locality: "Taracuá, Rio Uaupés, [Amazonas,] Brazil". Synonymy by Heyer, 1979, Smithson. Contrib. Zool., 301: 14.

Common Names

Popoco Thin-toed Frog (Coloma and Duellman, 2025, Amph. Ecuador. Vol. 4: xxxi).

Rana Dedilarga Popoco (Spanish: Coloma and Duellman, 2025, Amph. Ecuador. Vol. 4: xxxi).

San Jose White-lipped Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 82).

Distribution

Central and western Amazon basin of Brazil; from eastern Colombia south to southeastern Peru and east to the Guianas and adjacent Brazil, likely to occur in extreme northern Bolivia.

Geographic Occurrence

Natural Resident: Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname

Likely/Controversially Present: Bolivia

Comment

In the Leptodactylus pentadactylus group of Heyer, 1972, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 231: 1–8, and Heyer, 1979, Smithson. Contrib. Zool., 301: 1–43. See Pyburn and Heyer, 1975, Copeia, 1975: 585–587, for account. Duellman, 1978, Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 65: 90–91, provided a brief account and characterization of the call. Zimmerman, 1983, Herpetologica, 39: 235–246, and Zimmerman and Bogart, 1984, Acta Amazonica, 14: 473–520, reported on vocalization. Lescure and Marty, 2000, Collect. Patrimoines Nat., Paris, 45: 252–253, provided a photo and brief account for French Guiana. Zimmerman and Rodrigues, 1990, in Gentry (ed.), Four Neotropical Rainforests: 426–454, provided a record from near Manaus, Amazonian Brazil. Rodríguez and Duellman, 1994, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 22: 69–70, provided a brief account for the Iquitos region of northeastern Peru. von May, 2004, Herpetol. Rev., 35: 282, provided a Peruvian record and briefly discussed the range. França and Venâncio, 2010, Biotemas, 23: 71–84, provided a record for the municipality of Boca do Acre, Amazonas, with a brief discussion of the range. See account for Suriname population by Ouboter and Jairam, 2012, Amph. Suriname: 262–265. In the Leptodactylus pentadactylus species group of de Sá, Grant, Camargo, Heyer, Ponssa, and Stanley, 2014, S. Am. J. Herpetol., 9(Spec. Issue 1): 1–123, and who provided a summary of relevant literature (adult morphology, identification, advertisement call, and range) on pp. 62–63. 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. For identification of larvae in central Amazonia, Brazil, see Hero, 1990, Amazoniana, 11: 201–262. Taucce, Costa-Campos, Carvalho, and Michalski, 2022, Eur. J. Taxon., 836: 96–130, reported on distribution, literature, and conservation status for Amapá, Brazil. Coloma and Duellman, 2025, Amph. Ecuador. Vol. 4: 94–95, provided an account, with photographs, which summarized identification, adult morphology, systematics, natural history, distribution (including a dot map for Ecuador), conservation, and (on p. 389) vocalization.

External links:

Please note: these links will take you to external websites not affiliated with the American Museum of Natural History. We are not responsible for their content.

For access to general information see Wikipedia
For additional sources of general information from other websites search Google
For access to relevant technical literature search Google Scholar
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 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 additional information specific to Ecuador see FaunaWebEcuador: Anfibios del Ecuador