Sites

Echimyidae - English
URL: http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Deuterostoma/Chordata/Synapsid

Cladistic tree.

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Echimyidae: Spiny Rats - English
URL: http://www.press.jhu.edu/books/walkers_mammals_of_the_world/rodentia.echimyidae.

These rodents sometimes live in small groups. Various scolding sounds have been noted, but captives are often peaceful. If handled carefully, they do not attempt to bite. Breeding may occur throughout the year in much of the range of the Echimyidae. Litter size is one to seven young. The newborn are well furred, and their eyelids are formed.

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Echimyidae - English
URL: http://animaldiversity.ummz.umich.edu/chordata/mammalia/rodentia/echimyidae.html

This family, with 78 species in around 20 genera (including a few probably-extinct West Indian species), is the most diverse of the South American hystricognath rodents. This is certainly true in terms of number of species, and may be true in terms of the ecological range of the family as well. Echimyids are found in tropical regions of Central and South America.

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Rodentia Echimyidae Heteropsomys, World Distribution Table - English
URL: http://www.press.jhu.edu/books/walkers_mammals_of_the_world/tables/table.genus.r

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