Skip to main content


Echimyidae (spiny rats; order Rodentia, suborder Hystricomorpha) A family of ground-dwelling, burrowing rodents, some of which are arboreal and others semi-aquatic. The legs are long, the first digit of the fore limb is rudimentary, the hind limb is pentadactyl. The hair tends to be spiny. Echimyidae are distributed throughout tropical S. America. There are 14 genera, with about 43 species.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Echimyidae." A Dictionary of Zoology. . 17 Dec. 2018 <>.

"Echimyidae." A Dictionary of Zoology. . (December 17, 2018).

"Echimyidae." A Dictionary of Zoology. . Retrieved December 17, 2018 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.