Peromyscus truei, upper palate

Peromyscus truei, upper right palate

Peromyscus truei, lower jaw

Peromyscus truei, lower left jaw

Peromyscus maniculatus, upper palate

Peromyscus maniculatus, upper right palate

Peromyscus maniculatus, lower jaw

Peromyscus maniculatus, lower left jaw

Peromyscus boylii, upper palate

Peromyscus boylii, upper right palate

Peromyscus boylii, lower jaw

Peromyscus boylii, lower left jaw