Plethodon vehiculum is a scientific name commonly used to describe a particular species of salamander. However, there are several synonyms that can be used to refer to this species. Some of the common synonyms include Appalachian salamander, mountain slimy salamander, and southern Appalachian salamander. These names are often used interchangeably depending on the geographical location of the salamander. Additionally, there are other synonyms that are more specific to certain subspecies of the Plethodon vehiculum. Regardless of the synonym used, these salamanders are known for their slimy skin and unique physical characteristics that make them a fascinating creature to study.