Two other species in the same genus are found locally - the Blue-spotted and Jefferson's Salamander. However, things aren't that simple as the parent species are often outnumbered by polyploid indivduals, with more copies of each chromosome (most animals, including humans, have 2 copies of each chromosome). These individuals incorporate genetic material from both species, but are stable populations, with little to no interbreeding with the parent species. These polyploids, which are almost always female, still need to breed with a male to lay eggs, but produce young using only their own chromosomes. A pretty crazy story for these unassuming little creatures!
In the photo above, the left individual looks more like a Blue-spotted, and the right more like a Jefferson's, but quite likely both are polyploid individuals.