Osborn's key mouse

{{Short description|Extinct species of rodent}}

{{speciesbox

| name = Osborn's key mouse{{MSW3 Woods|id=13400605|page=1599}}

| image =

| fossil_range = Pleistocene

| status_ref =

| genus = Clidomys

| species = osborni

| parent_authority = Anthony, 1920

| authority = Anthony, 1920

| synonyms =

• Clidomys cundalli (Anthony, 1920)
• Clidomys jamaicensis (Anthony, 1920)
• Clidomys major (Anthony, 1920)
• Clidomys parvus (Anthony, 1920)

}}

Osborn's key mouse (Clidomys osborni), also known as the larger Jamaican giant hutia, is an extinct species of large rodent in the family Heptaxodontidae.{{cite web |url=https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=584887 |title=Clidomys osborni |accessdate=2008-04-15 |publisher=Integrated Taxonomic Information System }} It was endemic to the island of Jamaica and likely became extinct before the end of the Pleistocene.{{cite journal |last1=Morgan |first1=Gary S. |last2=Wilkins |first2=Laurie |year=2003 |title=The Extinct Rodent Clidomys (Heptaxodontidae) From a Late Quaternary Cave Deposit in Jamaica |journal=Caribbean Journal of Science |volume=39 |issue=1 |pages=34–41 |url=http://caribjsci.org/april03/39_34-41.pdf |accessdate=November 3, 2013 }} Osborn's key mouse has only been found in six caves: Wallingford Roadside Cave, Sheep Pen Cave, Molton Fissure, Worthy Park Cave 1, Luidas Vale Cave, and Slue's Cave.