Dermis Turtle

Dermis Turtles were small, peaceful turtle Rahi with almost impenetrable silver shells. They were good weather indicators: they would retreat into their shells if a storm was on the way. Rahaga Gaaki said they also had a musical cry that the Ga-Matoran on Metru Nui had gotten used to and even enjoyed. It could use its sharp silver tusks for defense.

Trivia
The Dermis Turtle was designed for the BIONICLE:Rahi Building Contest, and was picked a winner. Greg Farshety brought the turtle and all the other contest winners into BIONICLE canon.