Single-spot butterfly fish (confirmed introduction)
Single-spot butterfly From the name of the fish, you can tell that there is a water-spot-like black spot on the upper center of its body, which is very characteristic of the single-spot butterfly fish. There is no difference between the juveniles and adults of the single-spot butterfly fish, and their body color They are all yellow, but the characteristics of juvenile fish are brighter.
The body of the single-spotted butterfly fish is tall and oval; the upper surface of the head is straight, and the snout is concave and pointed. Mouth-shaped. The front nostril has a nasal valve. The edge of the front operculum is finely serrated; the outer teeth of the two jaws are relatively strong, and the inner teeth are smaller; the lateral line rises steeply to the dorsal fin. The dorsal fin of the single-spot butterflyfish is simple, with XIII hard spines and 23-24 soft rays; the anal fin has hard spines III and 19-20 soft rays. Half yellow, the lower half is light-colored; there are 10 yellowish-brown straight fine lines on the front of the body; there is a black round spot with a white edge about twice the diameter of the eye above the middle of the body; the head has a mark about the size of the eye. The black eyeband extends downward only to the forehead. The back, abdomen and anal fin are golden; there is a black narrow band from the rear edge of the dorsal fin through the caudal fin to the rear edge of the anal fin; the remaining fins are light or yellowish.
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