|First appearance||The Return of Tsul 'Kalu|
Sea scorpion is living a fossil sighted from the coast of Florida. It made its first and only appearance in The Return of Tsul 'Kalu.
The sea scorpions are ancient, extinct crustaceans from the earliest times of living creatures. Somehow, many sorts of these creatures have evolved slightly and yet drastically to live in our times. The few seen in the tank are very small compared to their ancient ancestors.
Real World Information
Eurypterids lived around 460 to 248 Million Years ago, reaching around two meters and came in many families and genre, the one shown in the series is probably from the Slimonia Genis.
Their closest living relative is the Horse-Shoe Crab.