Neoglyphidodon nigroris (Behn’s damsel)


The Behn’s damsel has two very different forms: long, yellow-tailed and yellow rear fins and black front body with a dark black bar on the gill cover as adults occur. The second form is yellow, with 2 distinct black stripes and pointy fins, as juveniles occur. They have been suggested as being 2 different species, but the appearance changes over time.


Has not yet been assessed by the IUCN Red List.


The Behn’s damsel is found from the Indo-West Pacific region: Andaman Sea (Phuket), Malayan Archipelago, Indonesia, Philippines, Taiwan, Ryukyu Islands, Palau, New Guinea, Solomon Islands, Vanuatu, and northern Australia. Occurs in coral-rich areas of lagoon and seaward reefs at a depth range between 2 and 23 meter. Usually solitary.


Distinct pairing during breeding. The eggs are aerated and guarded by the male and stick to the substrate.


Max. length is 13.0 cm.

Prey / Predation

They feed on algae, crustaceans, and pelagic tunicates and salps.

Special features

The species  is referred to by a lot of common names, such as Black-and-gold chromis (referring to its juvenile state) or the blackmouth bicolor chromis.