A worldwide community photographing and learning about wildlife
Project Noah Nature School
Naso lituratus
The orangespine unicornfish has a continuous, unnotched dorsal fin with VI spines and 27-30 soft rays. The anal fin is long, with II spines and 28-30 soft rays. The caudal fin is lunate; adult males develop a long filament from the tip of each lobe. The caudal peduncle bears two forward-directed knife-like plates. These plates are not well-developed in juveniles. The keeled peduncular plates are bright orange. Body color is grey-brown with distinctive black, yellow and white markings. The species lacks any anterior protuberance or "horns" along that forehead that are found in some other acanthurids. It was originally believed that the Naso, Blonde Naso and Streamer versions were all different species, but this is not the case. The Blonde is a color variant and the streamers indicate that the fish is male
Shark's Cove
Spotted on Oct 16, 2014
Submitted on Dec 5, 2014
No Comments