The eastern spotted skunk, "S. putorius", is a conservation concern. Eastward, its range borders that of the eastern spotted skunk ("Spilogale putorius"). The pygmy spotted skunk ("Spilogale pygmaea") is a species of mammal in the family Mephitidae. The spotted skunk and Channel Islands fox also are endemic. The island spotted skunk exhibits habitat preferences similar to those of the mainland species. The southern spotted skunk is nocturnal and secretive in its habits. The western spotted skunk typically reach sexual maturity much faster than other skunk species .