Neoglyphidodon nigroris

Neoglyphidodon nigroris, commonly known as the black-and-gold chromis or Behn's damsel is a species of damselfish found in the Indo-West Pacific.^[2][3] It occasionally makes its way into the aquarium trade. It grows to a size of 13 centimetres (5.1 in) in total length.^[3]

Neoglyphidodon nigroris
Juvenile
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Blenniiformes
Family:	Pomacentridae
Genus:	Neoglyphidodon
Species:	N. nigroris
Binomial name
Neoglyphidodon nigroris (Cuvier, 1830)
Synonyms
Glyphisodon nigrorsis Cuvier in Cuvier & Valenciennes, 1830 Abudefduf behnii Bleeker, 1847 Abudefduf coracinus Seale, 1910 Abudefduf filifer Weber, 1913 Chromis bitaeniatus Fowler & Bean, 1928 Chrysiptera xanthura xanthura Bleeker, 1853 Glyphisodon behnii Bleeker, 1847 Glyphisodon xanthurus Bleeker, 1853 Paraglyphidodon behni Bleeker, 1847 Paraglyphidodon behnii Bleeker, 1847 Paraglyphidodon nigroris Cuvier, 1830

Distribution and habitat

This species of damselfish is found throughout the Indo-Pacific region.^[3] In the Indian Ocean, they are found around Sri Lanka, the Andaman Sea, Indonesia, and Australia. In the Pacific Ocean, they are found around Indonesia, the Philippines, Australia, Vietnam, Taiwan, Japan, Malaysia, the Solomon Islands, Vanuatu, and Hawaii.^[3] Behn's damselfishes live in coral reefs and lagoons that are rich in corals.^[3] They are found at depths of 2–21 metres (6.6–68.9 ft).^[4]

Description

Adults individuals of Benh's damselfish can grow up to 13 centimetres (5.1 in).^[3] There are two varieties of adult coloration.^[3] The adult individuals from the western Pacific Ocean have a tan front and a yellow back. In the area ranging from the Andaman Sea to Japan, adults are black.^[3] The two varieties overlap around the island of Bali. Juveniles have a yellow coloration with 2 horizontal black stripes.

Ecology

Diet

Benh's damselfish are omnivorous fish. They feed mainly on algae, crustaceans, tunicates, and salps.^[3]

Behavior

This species is normally encountered as a solitary fish.^[3] They are territorial fish.^[5] As the fish gets older, they get more aggressive and territorial.^[6]

In the aquarium

In the aquarium hobby, the juvenile fish is occasionally available for the aquarium trade. Most people keep this fish in water conditions of 1.020 to 1.025 gravity, pH 8.1 to 8.4, and 22 °C (72 °F) to 25 °C (77 °F).^[6] It chases smaller fishes but hides in living rocks gap in order to avoid bigger fishes.^[7]

Reproduction

During breeding, the females lay their eggs in the substrate. Then, the males guard them and aerate them until they hatch.^[3]