Hylaeamys megacephalus
{{Short description|Species of rodent}}
{{speciesbox
| name = Large-headed rice rat
| status = LC
| status_system = IUCN3.1
- {{cite journal | last1 = Weksler | first1 = M.
| last2 = Percequillo | first2 = A. R. | last3 = Voss | first3 = R. S.
| title = Ten new genera of oryzomyine rodents (Cricetidae: Sigmodontinae)
| journal = American Museum Novitates | issue = 3537 | pages = 1–29
| publisher = American Museum of Natural History | location = New York
| date = 2006-10-19 | hdl = 2246/5815 | issn = 0003-0082| doi=10.1206/0003-0082(2006)3537[1:TNGOOR]2.0.CO;2| s2cid = 84088556
| url = http://digitallibrary.amnh.org/bitstream/2246/5815/1//v3/dspace/updateIngest/pdfs//N3537.pdf }}
| genus = Hylaeamys
| species = megacephalus
| authority = (Fischer, 1814)
| synonyms = Mus megacephalus Fischer, 1814
Mus capito Olfers, 1818
Oryzomys capito Cabrera, 1961
Oryzomys megacephalus Bonvicino et al., 1996
[Hylaeamys] megacephalus Weksler et al., 1996
}}
Hylaeamys megacephalus, also known as Azara's broad-headed oryzomys or the large-headed rice rat, is a species of rodent in the genus Hylaeamys of family Cricetidae, of which it is the type species. It is found mainly in lowland tropical rainforest from its type locality in Paraguay north through central Brazil, French Guiana, Guyana, Suriname, and Venezuela onto Trinidad and Tobago. To its west and east, other closely related species of Hylaeamys are found: H. perenensis in western Amazonia, H. acritus in Bolivia, and H. laticeps and H. oniscus in the Atlantic Forest of eastern Brazil.
Taxonomy
It was first described by Spanish naturalist Félix de Azara.{{cite journal |author1= Musser, G.G.|author2= Carleton, M.D.|author3= Brothers, E.M.|author4= Gardner, A.L.|title= Systematic studies of oryzomyine rodents (Muridae: Sigmodontinae): diagnoses and distributions of species formerly assigned to Oryzomys "capito"|journal= Bulletin of the American Museum of Natural History|volume= 236|pages= 1–376|date= 1998|hdl= 2246/1630}} Based on his description, several names were given to the animal, including Mus megacephalus Fischer, 1814 and Mus capito Olfers, 1818, both of which were largely forgotten for over a century. When capito was rediscovered in 1960, it came in use (as Oryzomys capito) for a "species" that included about all species now placed in Euryoryzomys, Hylaeamys and Transandinomys. Later, its scope was restricted, most definitively in a detailed study in 1998 by Guy Musser and coworkers, who also reinstated the older name Mus megacephalus (as Oryzomys megacephalus). In subsequent years, the western Amazonian H. perenensis was reinstated as a species and both were moved to the new genus Hylaeamys, because they are not closely related to the type species of Oryzomys.{{MSW3 Muroidea | id = 13000809 | page = 1151}}
References
{{Reflist}}
{{Oryzomyini nav}}
{{Taxonbar|from=Q1769066}}
Category:Mammals of French Guiana
Category:Mammals of Trinidad and Tobago
Category:Mammals of the Caribbean
Category:Mammals described in 1814
Category:Taxa named by Gotthelf Fischer von Waldheim
Category:Taxonomy articles created by Polbot
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