Traits

Iris + Pupil allows a Biovent to show both an iris and pupil. Round or slit pupils are both allowed.
Shaped Pupil can be used for any other shapes.

Mixed eyes allow a Biovent to have two different types of eyes.
Examples: Left full sclara and right  shaped pupil.
If paired with the Multi-Eyes trait they may have a unique eye type in each eye.

This trait allows Biovents to have multiple eyes! The eyes may be located anywhere on the body but may not be anywhere in the infection.

This trait allows Biovent to have more than one tongue.
They can also be mixed types such as one forked and one round.