- The adult worms can reach the size of 100 feet long or more.
- They have a weird simian face in the tip of their tails and two long antennas which the Kraang - and April - use to ride and control them.
- The Kraang milk them for Mutagen as if they were cows.
- The Kraathatrogon are able to fly in Dimension X.
The Manhattan Project - The Kraang bring several worms to Earth to extract their mutagen, one of them eats Casey, Donnie and April kill it with salt, later April and Casey ride a worm to battle and Tiger Claw gets eaten, the Kraathatrogon is sent to the 80's turtles dimension. The Wrath of Tiger Claw - Tiger Claw's flashback shows how he was able to escape from the Kraathatrogon. Into Dimension X! - A Kraathatrogon appears flying over Raph's head, later several baby worms are feeding from their mother's mutagen.