Sigmodon alleni (Allen's cotton rat) (Vulnerable) (Attributes)
Sigmodon alstoni (Alston's cotton rat) (Attributes)
Sigmodon arizonae (Arizona cotton rat) (Attributes)
Sigmodon bakeri
Sigmodon chonensis
Sigmodon curtisi
Sigmodon fulviventer (tawny-bellied cotton rat) (Attributes)
Sigmodon hirsutus (southern cotton rat) (Attributes)
Sigmodon hispidus (hispid cotton rat) (Attributes)
Sigmodon hudspethensis
Sigmodon inopinatus (unexpected cotton rat) (Vulnerable) (Attributes)
Sigmodon leucotis (white-eared cotton rat) (Attributes)
Sigmodon libitinus
Sigmodon lindsayi
Sigmodon mascotensis (Jaliscan cotton rat) (Attributes)
Sigmodon minor
Sigmodon ochrognathus (yellow-nosed cotton rat) (Attributes)
Sigmodon peruanus (Peruvian cotton rat) (Attributes)
Sigmodon planifrons (Miahuatl�n Cotton Rat) (Attributes)
Sigmodon toltecus (Toltec cotton rat) (Attributes)
Sigmodon zanjonensis (montane cotton rat) (Attributes)