About Neoglyphidodon nigroris (Cuvier, 1830)
Adults of Neoglyphidodon nigroris can reach a maximum total length of 13 cm (5.1 inches). Adult individuals of this species display two distinct coloration varieties. Fish ranging from the Andaman Sea to Japan are entirely black, while individuals from the western Pacific Ocean have a tan front body and a yellow rear body. The western Pacific variety may be recognized as a separate species under the name N. xanthurus, and the two varieties have overlapping ranges around the island of Bali. Juveniles are yellow with two longitudinal black stripes, and have a black spot at the base of the pectoral fin. This damselfish species is distributed across the entire Indo-Pacific region. In the Indian Ocean, it occurs around Sri Lanka, the Andaman Sea, Indonesia, and Australia. In the Pacific Ocean, it occurs around Indonesia, the Philippines, Australia, Vietnam, Japan, Malaysia, the Solomon Islands, Vanuatu, and Hawaii. Neoglyphidodon nigroris inhabits coral-rich coral reefs and lagoons, and can be found at depths between 2 and 21 meters (6.6 to 68.9 feet). During reproduction, females lay demersal eggs that attach to the underwater substrate. Males then guard and aerate these eggs until they hatch.
