''Craugastor matudai'' (common names: Matuda's robber frog, Matuda's stream frog) is a species of

frog A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-f ...

in the family

Craugastoridae Craugastoridae, commonly known as fleshbelly frogs, is a family of New World direct-developing frogs. As delineated here, following the Amphibian Species of the World, it contains 129 species. They are found from the southern United States south ...

. It is found in the lower montane zone at elevations of

above sea level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The comb ...

on the Pacific versant of

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

and

Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...

, from Cerro Ovando in southwestern

Chiapas Chiapas (; Tzotzil language, Tzotzil and Tzeltal language, Tzeltal: ''Chyapas'' ), officially the Free and Sovereign State of Chiapas ( es, Estado Libre y Soberano de Chiapas), is one of the states that make up the Political divisions of Mexico, ...

(Mexico) to Fraternidad, a village in Esquipulas Palo Gordo, central Guatemala. It is named after

Eizi Matuda (1894–1978) was a Mexican botanist of Japanese origin. In scholarly works his name is generally romanised Romanization or romanisation, in linguistics, is the conversion of text from a different writing system to the Roman (Latin) scri ...

, Japanese–Mexican botanist who hosted

Hobart Muir Smith Hobart Muir Smith, born Frederick William Stouffer (September 26, 1912 – March 4, 2013), was an American herpetologist. He is credited with describing more than 100 new species of American reptiles and amphibians. In addition, he has been ...

and his wife Rozella B. Smith, the collectors of the

type series In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the ...

from Cerro Ovando.

Description

Males measure and females in snout–vent length. The body is heavily rugose with tiny pearly-topped tubercles. The

canthus rostralis In snakes and amphibians, the canthus, canthal ridge or ''canthus rostralis'',Spawls S, Branch B. 1995. ''The Dangerous Snakes of Africa''. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. . is the angle between the flat crown of the head and the ...

is sharp with slightly raised edges. The diameter of the tympanum relative to the eye is much larger in males (>⁴/₅) than in females (little more than ¹/₂). Males lack

vocal sac The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call. The presence or development of the vocal sac is one way o ...

Habitat and conservation

Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

is pine-oak forest where it lives terrestrially. This rare species is potentially threatened by

habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...

. Mexican law protects it under the "Special Protection" category (Pr).

References

{{Taxonbar, from=Q3002293 matudai Amphibians of Guatemala Amphibians of Mexico Amphibians described in 1941 Taxa named by Edward Harrison Taylor Taxonomy articles created by Polbot