Chenari
- Appearance: Reptilian
- Slightly larger than Humans (TOS Novel: The Captain's Oath)
- Horizontal torsos cantilevered by heavy tails (TOS Novel: The Captain's Oath)
- Frilled heads with beaked mouths (TOS Novel: The Captain's Oath)
- Bat-like wings (TOS Novel: The Captain's Oath)
- Capable only of gliding, not flight (TOS Novel: The Captain's Oath)
- Homeworld: Chenar
- Rendered near-extinct mid-2263 following devastation of Chenar biosphere by Murasaki 274 radiation surge (TOS Novel: The Captain's Oath)
- Several hundred rescued by USS Sacagawea following surge (TOS Novel: The Captain's Oath, Ex Machina; VOY: "Q2")
- Biological notes
- Oviparous (TOS Novel: The Captain's Oath)
- Annual spawning (TOS Novel: The Captain's Oath)
- Oviparous (TOS Novel: The Captain's Oath)