Zaoalena

Zaoalenas are crustacean creatures native to the oceans of the icy moon Arnabus, orbiting the gas giant Anear G.

Biology
They are spider-like crabs with four legs, and have bizarre electrical abilities. Because of their lack of eyes or ears, they sense their environment through electrical senses like electroreception, and use an electrical attack to kill their prey, using a tentacle-like tongue to consume it.

Appearances

 * The Universe, s03e05, "Alien Faces" (2008)