Genus Notophthalmus is a type of salamander that inhabits North America. It is commonly known as the "red-spotted newt" and has several synonyms, including Triturus viridescens, Diemyctylus viridescens, and Notophtalmodon viridescens. These synonyms are often used interchangeably when referring to the red-spotted newt. The newt is a popular pet and is known for its bright orange-red spots on its body. It also has a distinct three-stage life cycle, starting as an aquatic larva, transforming into a terrestrial juvenile, and finally becoming an aquatic adult. With its diverse range of synonyms, it's clear that the red-spotted newt is a fascinating and important species in the animal kingdom.