Yridian
- Appearance: Mammalian
- Generally hairless scalps
- Medial ridge from rear of scalp to bottom of chin
- Wrinkled skin
- Large, broad ears
- Homeworld: Yridia I
- Believed extinct some point after 22nd century; rediscovered by Federation mid-24th century (VOY: "Equinox")
- Generally noted as information brokers
- Cultural notes