Red Leech
The red leech (Crimson Horror) was a species of leech native to Earth.
Biology
The leeches were small creatures that resembled lobsters. They had large black eyes, sucker-like mouths and two tentacles covered in barbs. They lived by attaching themselves to other creatures and needed excessive amounts of salt to live. If the host was dying, the leech would detach itself and find a new host.
They could produce a deadly poison which could cause blindness, paralysis, or even death. In some cases, the poison would cause a person’s skin to become red, waxy, and hard.
Appearances
The Crimson Horror (TV)