The Asfur Angelfish (Pomacanthus asfur) is also known as Arabian Angelfish and Crescent Angelfish.
Size and appearance
The largest scientifically measured Asfur Angelfish was 40.0 cm / 15.7 in.
Juvenile specimens have blue bodies decorated with light-blue and white stripes. They can be confused with Koran Angelfish (Pomacanthus koran), but the Asfur Angelfish features three (predominantly) white bars. As the juvenile ages, it will develop yellow markings on its dorsal fin and the caudal fin will also turn yellow.
The adult Asfur Angelfish has a dark blue or dark purple body with a black head and bright yellow tail fin. Just as the name Crescent Angelfish suggests, a yellow crescent bisects the body vertically. As an adult, the Asfur Angelfish can be mistaken for Maculosus Angelfish (Pomocanthus maculosus) but Maculosus Angelfish doesn’t have a bright yellow non-transparent tail.