Peromyscus

Peromyscus

1. Long tail equal to or longer than body?

   • foot length 20-23 mm?
     • Peromyscus attateri
   • foot length 24/25mm?
     • Peromyscus pectoralis

2. Tail shorter than body length?

   • Dumbo ears?
     • yes?
       • Peromyscus truei
     • no?
       • bicolored tail?
         • Peromyscus maniculatus
       • tail color grades from light to dark?
         • Peromyscus leucopus