Regal Demoiselle (Neopomacentrus cyanomos) クロリボンスズメダイ (size 10cm)
The Regal Demoiselle is a dark fish with an even darker spot behind the upper gill cover. White spot at the back base of the dorsal fin. Slight blue edge to the dorsal and anal fins. The dorsal, caudal and anl fins can have yellow rays extending from them. Black rays on some as in the above picture. Amami