Nayarit mouse

The Nayarit mouse is the smallest mouse within the P. boylii species group, with a head and body length of about , and a tail measuring about the same again. They typically also have a shorter snout than other members of the species group. They have tawny fur, with creamy-white underparts and a poorly defined stripe of darker, almost black, fur down the middle of the back. The limbs are dusky to sooty, with white feet. The tail is hairy, usually darker above than below, and ends in a distinct tuft. ==Distribution and habitat==

The Nayarit mouse is found only along the Pacific coast of Mexico, from southern Sinaloa to central Nayarit. in coastal plains and river valleys below , including mangrove swamps, acacia thickets and thorn scrub. There are no recognised subspecies. ==References==