The Tehachapi slender salamander is endemic to the Tehachapi Mountains and a listed vulnerable species. The Oregon slender salamander is endemic to the Northwestern United States. The garden slender salamander ("Batrachoseps major") is a species of salamander in the family Plethodontidae. The state of Oregon has taken seriously their duty to protect the California slender salamander. The Oregon slender salamander ("Batrachoseps wrightorum") is a species of salamander in the family Plethodontidae. The sequoia slender salamander ("Batrachoseps kawia") is a species of salamander in the family Plethodontidae. There is one amphibian, the Channel Islands slender salamander ("Batrachoseps pacificus"). The Hell Hollow slender salamander is an IUCN Red List Vulnerable species. Further down the Kern River Canyon, the Gregarious slender salamander ("Batrachoseps gregarius") occurs. The Greenhorn Mountains slender salamander ("Batrachoseps altasierrae") is endemic to the Greenhorn Mountains. The relictual slender salamander ("Batrachoseps relictus") is a species of salamander in the family Plethodontidae.