Redback (?) Salamander (Plethedon or Plethodon cinereus)

Using The Field Guide to Reptiles and Amphibians of New Jersey from the NEW JERSEY DEPARTMENT OF ENVIRONMENTAL PROTECTION, I tried to identify this little fellow we found among some of the garden clippings. He looked reddish brown with very small white spots all over his body. The belly was the same color. As you can see in the picture, he didn't want to sit still for a photograph, so we quickly snapped these pictures and then let him go into the Egg Garden. Interestingly, it also looked like he may have recently lost his tail. If someone more knowledgeable can verify or correct the identification, leave a comment.