This study shows that the Japanese serow, one of the wild bovidae in Japan, has the zygomatic salivary gland similar to that of some carnivores. This gland is located inside the zygomatic arch on either side, lying on the ventro-lateral part of the periorbita. Two or three ducts of this gland open at the surface of the buccal membrane near the root of the last upper molar tooth. Histological observation reveals that the gland of this species is predominantly serous in nature, unlike that of carnivores.