closeup on a red subadult of the rare plethodon asupak, scot barr salamander on green moss in north california

amphibia amphibian chordata caudata hightonia nature north american plethodon asupak plethodontidae salamander scott bar river drainage siskiyou county usa animal biology california closeup endangered endemic herpetology lungless macro newt outdoors predator single tailed urodela vertebrate wild wildlife wood zoology natural red subadult rare scot barr green moss