Systematic study of wood mouse (Genus: Apodemus) was carried out using morphological and morphometric dental and cranial characters in eight specimens from Noor region (Altitude: -26 m) in Mazindaran Province. According to present study, this is the first record of wood mouse (A.hyrcanicus) in Noor region. The skin is black brown in ventral side, which obviously is different from the other species of Apodemus in Iran. V shaped Fronto-parietal suture with frequency of %88, curved posterior edge of palatine (frequency: %77), developed and wide Angular process, massive bulla, absence of Cingulums in lower M/2 (frequency: %87.5), Absence of C1 Cingulum in lower M/2 (frequency: %100), largeness of length and width of lower Molars, and largeness of length and width of upper M2/ are the Key discriminating characters. The geographic distribution of Apodemus hyrcanicus, which is native to the hyrcanian region, stretch from deciduous lowland forest of eastern Caucasus in the west to the easternmost limit of hyrcanian forest in the southern coast of the Caspian Sea in Iran
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