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This feature also explains the family name Pomacanthidae; from the Greek πομα, poma meaning "cover" and ακάνθα, akantha meaning "thorn". Many species of marine angelfishes have streamer-like extensions of the soft dorsal and anal fins. The fish have small mouths, relatively large pectoral fins, and rounded to
Pomacanthus semicirculatus, also known as the semicircled angelfish, Koran angelfish, blue angelfish, zebra angelfish or half-circled angelfish, is a species of ray-finned fish, a marine angelfish, in the family Pomacanthidae. It is found in the Indo-West Pacific Ocean. It occasionally makes its way into the aquarium trade.
The most commonly recorded is a mostly gold or bright orange morph. Other morphs may be bright blue with some yellow, black or white coloration or even all white. [16] Another color morph was recorded off Dry Tortugas, Florida, in 2009. This fish was mostly cobalt blue with white and yellow-orange colored areas. [17]
The bluering angelfish (Pomacanthus annularis), also known as the annularis angelfish and the blue king angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. [3] It is member of the genus Pomacanthus, composed of large marine angelfish. [4]
The sections are separated by pale blue bands edged with black. The mouth and lips are blue as are the rays of the pectoral and anal fins, while the dorsal and caudal fins are yellow, edged with pale blue. There is a long spine on the gill cover which is used in defence. Juvenile fish are dark blue with slightly curved, white lateral stripes. [4]
The name is a compound of poma meaning"lid" and acanthus which means "thorn", a reference to the prominents spine on the rear margin of the operculum, a feature shared by all the marine angelfishes. [4] Some authorities divide the genus up into the following subgenera: [4] Pomacanthus Lacépède, 1802. Pomacanthus (Pomacanthus) arcuatus
The mouth is just above the tip of the snout. The fins are large and rounded and are yellow, some edged with blue round the margins. The dorsal fin is set just in front of the caudal region, has a distinctive black eyespot at the base and has 13–14 spines and 16–18 soft rays. The anal fin has 3 spines and 16–18 soft rays.
Scientific name Common name Distribution Holacanthus africanus Cadenat, 1951. Guinean angelfish, coast of tropical West Africa, in the warmer sections of the eastern Atlantic Ocean. Holacanthus bermudensis Goode, 1876. Bermuda blue angelfish,