Davies's big-eared bat or the graybeard bat (''Glyphonycteris daviesi'') is a species of bat in the family Phyllostomidae. It is named after James (Jim) Noel Davies (B. 1936) who discovered it whilst on an expedition in British Guiana,

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the souther ...

(Guyana since 1966) in 1963. This was the Cambridge University expedition to the rainforest reserve near

Bartica Bartica, Essequibo, is a town on the left bank of the Essequibo River in Cuyuni-Mazaruni (Region 7), at the confluence of the Cuyuni and Mazaruni Rivers with the Essequibo River in Guyana. It is the regional capital of Cuyuni-Mazaruni. Cons ...

in British Guiana. This species can weigh 30 grams and has a wingspan of up to 50cm. It is bigger than most micronycteris bats with a fierce disposition. A small frog was found in the stomach of a specimen, and the bat is strong-willed enough to chew its way out of a cloth bag. The species is found across the tropical regions of

, including

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

, Colombia, Costa Rica,

Ecuador Ecuador ( ; ; Quechuan languages, Quechua: ''Ikwayur''; Shuar language, Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechuan ...

French Guiana French Guiana ( or ; french: link=no, Guyane ; gcr, label=French Guianese Creole, Lagwiyann ) is an overseas departments and regions of France, overseas department/region and single territorial collectivity of France on the northern Atlantic ...

, Guyana, Honduras,

Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Co ...

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

Suriname Suriname (; srn, Sranankondre or ), officially the Republic of Suriname ( nl, Republiek Suriname , srn, Ripolik fu Sranan), is a country on the northeastern Atlantic coast of South America. It is bordered by the Atlantic Ocean to the north ...

Trinidad and Tobago Trinidad and Tobago (, ), officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean. Consisting of the main islands Trinidad and Tobago, and numerous much List of islands of Trinidad and Tobago, small ...

, and

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in ...

. It is recorded (2021) in the ''Eponym Dictionary'', published by

Johns Hopkins University Johns Hopkins University (Johns Hopkins, Hopkins, or JHU) is a private research university in Baltimore, Maryland. Founded in 1876, Johns Hopkins is the oldest research university in the United States and in the western hemisphere. It consiste ...

of Baltimore USA.

References

Glyphonycteris Mammals of Colombia Bats of Central America Mammals described in 1964 Taxonomy articles created by Polbot {{leafnosed-bat-stub