Class Mammalia Linnaeus, 1758 - mammals
Order Rodentia Bowdich, 1821 - rodents
Suborder Sciurognathi (Tullberg, 1899)
see Suborder Sciuromorpha Brandt, 1855
Family Muridae Batsch, 1788 - rats, mice, hamsters, voles, lemmings, and gerbils
Subfamily Sigmodontinae Wagner, 1843
Genus Reithrodontomys Giglioli, 1873 - American harvest mice
01 Reithrodontomys brevirostris Goodwin, 1943 - short-nosed harvest mouse
02 Reithrodontomys burti Benson, 1939 - Sonoran harvest mouse
03 Reithrodontomys chrysopsis Merriam, 1900 - volcano harvest mouse
04 Reithrodontomys creper Bangs, 1902 - Chiriqui harvest mouse
05 Reithrodontomys darienensis Pearson, 1939 - Darien harvest mouse
06 Reithrodontomys fulvescens J.A. Allen, 1894 - fulvous harvest mouse
07 Reithrodontomys gracilis J. A. Allen & Chapman, 1897 - slender harvest mouse
08 Reithrodontomys hirsutus Merriam, 1901 - hairy harvest mouse
09 Reithrodontomys humulis (Audubon & Bachman, 1841) - eastern harvest mouse
10 Reithrodontomys megalotis (Baird, 1858) - western harvest mouse
11 Reithrodontomys mexicanus Saussure, 1860 - Mexican harvest mouse
12 Reithrodontomys microdon Merriam, 1901 - small-toothed harvest mouse
13 Reithrodontomys montanus (Baird, 1855) - plains harvest mouse
14 Reithrodontomys paradoxus Jones & Genoways, 1970
15 Reithrodontomys raviventris Dixon, 1908 - saltmarsh harvest mouse
16 Reithrodontomys rodriguezi Goodwin, 1943 - Rodriguez's harvest mouse
17 Reithrodontomys spectabilis Jones & Lawlor, 1965 - Cozumel harvest mouse
18 Reithrodontomys sumichrasti Saussure, 1861 - Sumichrast's harvest mouse
19 Reithrodontomys tenuirostris Merriam, 1901 - narrow-nosed harvest mouse
20 Reithrodontomys zacatecae Merriam, 1901
21 Subgenus Aporodon
22 Subgenus Reithrodontomys Giglioli, 1873