- Pronounced hairless bulge on the sides of their skulls
- Telepaths, with the power to enhance & recover lost memories
- Other telepathic species had difficulty in reading their minds
- Great passion for their work, did not wish to coerce others into participating
- Were once a violent people; telepathic memory invasion was common
- By the end of the 21st century, they had become peaceful;
- Did not use their telepathic powers without permission
- By 2368, they construct a library of memories from species across the Federation
