Peromyscus mexicanus

The Mexican deer mouse (Peromyscus mexicanus) is a species of forest-dwelling rodent in the family Cricetidae. It is found in southern Mexico and throughout much of Central America. Mexican deer mice are moderately sized mouse-like animals with narrow, slightly elongated, heads and long tails. They have a combined head and body length of 9 to 12 centimetres (3.5 to 4.7 in), and a tail 10 to 13 centimetres (3.9 to 5.1 in) long.