not dead unless its melting away, but it does look in pretty bad shape. What happen to it and what are your parameters?
gL =/ where did you get it from?
Looks a little rough for sure. Placing in a glass was probably a good idea. They prefer to be in the rockwork, so when it does start to recover, set it on the rocks and let it wander until it finds a comfy spot.
Just wondering about your set up. What size tank? What kind of lighting? How old is the tank? What kind of flow?