Salamanders are amphibians that shed their skin several times throughout the course of their lives. It comes off and you may sometimes find it floating in or on top of the water. Sometimes the shedded skin may even have the same shape as the salamander that it came off of, including hands and feet. Salamanders consume the skin that they shed because it is a high source of protein and helps them grow. If a piece of skin does not shed and gets stuck, it can cause complications for the salamander and even restrict blood flow.
In this case it would be wise to soak the stuck skin in water and gently massage it to remove. When handling salamanders that are going through the shedding process, it is necessary to be very cautious and only handle them if it’s a necessity as too much handling can hinder the process and cause complications.