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

Craugastor pygmaeus (Taylor, 1937)

Class: Amphibia > Order: Anura > Superfamily: Brachycephaloidea > Family: Craugastoridae > Genus: Craugastor > Species: Craugastor pygmaeus

Eleutherodactylus pygmaeus Taylor, 1937 "1936", Trans. Kansas Acad. Sci., 39: 352. Holotype: EHT-HMS 3691, by original designation; now UIMNH 16125, according to J.D. Lynch in Frost, 1985, Amph. Species World: 315. Type locality: "1 mile north of Rodriguez Clara, Vera Cruz", Mexico.

Microbatrachylus albolabris Taylor, 1940 "1939", Univ. Kansas Sci. Bull., 26: 502. Holotype: EHT-HMS 6407, by original designation; now FMNH 100071 according to Marx, 1976, Fieldiana, Zool., 69: 58. Type locality: "two miles west of Córdoba, Veracruz", Mexico. Synonymy by Duellman, 1961, Univ. Kansas Publ. Mus. Nat. Hist., 15: 34.

Microbatrachylus pygmaeus — Taylor, 1940 "1939", Univ. Kansas Sci. Bull., 26: 500.

Microbatrachylus minimus Taylor, 1940 "1939", Univ. Kansas Sci. Bull., 26: 507. Holotype: EHT-HMS 6416, by original designation; now FMNH 100323 according to Marx, 1976, Fieldiana, Zool., 69: 58. Type locality: "Agua del Obispo, Guerrero (km. 350) in pine forest", Mexico. Synonymy by Duellman, 1961, Univ. Kansas Publ. Mus. Nat. Hist., 15: 34.

Microbatrachylus imitator Taylor, 1942, Univ. Kansas Sci. Bull., 28: 70. Holotype: USNM 115508, by original designation. Type locality: "La Esperanza, near Escuintla, Chiapas", Mexico. Synonymy by Duellman, 1961, Univ. Kansas Publ. Mus. Nat. Hist., 15: 34.

Eleutherodactylus pygmaeus — Lynch, 1965, Nat. Hist. Misc., 182: 9.

Eleutherodactylus (Craugastor) pygmaeus — Hedges, 1989, in Woods (ed.), Biogeograph. W. Indies: 317, by implication; Lynch, 1996, in Powell and Henderson (eds.), Contr. W. Indian Herpetol.: 154; Heinicke, Duellman, and Hedges, 2007, Proc. Natl. Acad. Sci. USA, 104: 10094.

Craugastor pygmaeus — Crawford and Smith, 2005, Mol. Phylogenet. Evol., 35: 551, by implication; Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 360.

Craugastor (Craugastor) pygmaeus — Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 39.

Common Names

Pigmy Free-fingered Frog (Liner, 1994, Herpetol. Circ., 23: 20).

Pigmy Robber Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 78; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 11).

Distribution

Widely distributed throughout lowland to intermediate localities in the states of Chiapas, Puebla, Oaxaca, and Veracruz and Queretaro (also possibly Tabasco, Mexico, and western Guatemala) from near sea level to 2000 m. Doubtfully from Nayarit, Mexico. See comment.

Geographic Occurrence

Natural Resident: Guatemala, Mexico

Comment

See discussion by Lynch, 1965, Nat. Hist. Misc., 182: 1–12. In the Eleutherodactylus (Craugastor) rhodopis group according to Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 231. 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: 309. Köhler, 2011, Amph. Cent. Am.: 140–191, provided a key to the genera and species of Brachycephaloidea (= Craugastoridae, Eleutherodactylidae) in Central America and provided maps and photographs of the species, including this one. In the Craugastor (Craugastor) mexicanus species series of Padial, Grant, and Frost, 2014, Zootaxa, 3825: 123. García-Padilla and Mata-Silva, 2014, Herpetol. Rev., 45: 468, provided a record for the Municipality of Santa Catarina Juquila, Oaxaca, Mexico, and briefly discussed the documented range in that state. The records by Ahumada-Carrillo, Arenas-Monroy, Fernández-Nava, and Vázquez-Huizar, 2013, Rev. Mexicana Biodiversidad, 84: 1338–1342, reported the species for Sinaloa, Nayarit, and Jalisco, Mexico, were subsequently reassigned to Craugastor pygmaeus by Jameson, Streicher, Manuelli, Head, and Smith, 2022, Herpetol. Monogr., 36: 34–35, who addressed morphometrics, molecular phylogenetics, morphology, and placed this species in their Craugastor mexicanus series. Reyna-Bustos, Huerta-Martínez, and Serrano-Serrano, 2021, Rev. Latinoam. Herpetol., 104: 108–115, reported on the advertisement call. Tepos-Ramírez, Garduño-Fonseca, Peralta-Robles, García-Rubio, and Cervantes Jiménez, 2023, Check List, 19: 269–292, discussed the distribution and conservation status of the species in Queretaro, Mexico. Loc-Barragán, Smith, Woolrich-Piña, and Lemos-Espinal, 2024, Herpetozoa, Wien, 37: 30, reported on the distributional and conservation status in the state of Nayarit, Mexico, although this appears to be doubtful on geographic grounds (DRF).

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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 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.