The venomous quid split from its ancestors and moved further out into the tropical zones within Darwin's surrounding oceans. Due to the large number of predators within the oceans, the venomous quid is slightly smaller than its ancestor. Its eyes have become more advanced than its ancestor's, which allows it to see in the dark. Lastly, the venomous quid has a sharp claw on each end of its tentacles. Each of these is connected to a venom gland that contain hemotoxins, which damages blood cells in prey. The venomous quid waits for prey to come close to its burrow, then it lashes its tentacles onto its prey, coils it, and then injects the venom into it. Once that is done, the tissues in the prey will start to break down and venomous quid will begin feeding on its prey.
Other than these changes, it is much like its ancestor in that it digs burrows, changes colors for mating, and do not need to feed terribly often.