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Just a note that it appears that these species are properly capitalized as Oldfield mice since their name comes from zoologist Oldfield Thomas. However, the North American species Peromyscus polionotus (oldfield mouse) is consistently lower case in sources and I have been unable to come up with the origin of the name. See discussion at User talk:Plantdrew#Oldfield Thomas. Thank you, SchreiberBike | ⌨ 21:35, 6 July 2016 (UTC)[reply]