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Acanthuridae
oneknife unicornfish
Naso thynnoides
Mottled pattern appears while sleeping
oneknife unicornfish is known around Indo-Pacific as a marine fish; It occurs in reef habitat, and the largest recorded length is 40 cm.
- Class
- Teleosts
- Family
- Acanthuridae
- Genus
- Naso
- Maximum length
- 40 cm
- Water
- Marine
- Body shape
- fusiform
- Distribution
- Indo-Pacific: East Africa to Micronesia (excluding the Marshall Islands), north to the Ryukyu Islands, south to the Solomon Islands and the Great Barrier Reef. Range extending to Rangiroa Atoll, Tuamotu Archipelago.
- Conservation status
- LCLeast Concern

