Neoglyphidodon nigroris

Neoglyphidodon nigroris
Adult of the second variety (top) and juvenile (bottom)
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
Abudefduf coracinus Seale, 1910 Abudefduf filifer Weber, 1913 Chromis bitaeniatus Fowler & Bean, 1928 Chrysiptera xanthura xanthura Bleeker, 1853 Glyphisodon behniiBleeker, 1847 Glyphisodon nigrorisCuvier, 1830 Glyphisodon xanthurusBleeker, 1853 Paraglyphidodon behnii(Bleeker, 1847) Paraglyphidodon nigroris(Cuvier, 1830)

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.

Distribution and habitat

This species of damselfish is found throughout the Indo-Pacific region. ^[3] In the Indian Ocean, it is found around Sri Lanka, the Andaman Sea, Indonesia, and Australia. In the Pacific Ocean, it is found around Indonesia, the Philippines, Australia, Vietnam, Japan, Malaysia, the Solomon Islands, Vanuatu, and Hawaii. ^[3] It lives in coral reefs and lagoons rich in corals, ^[3] and is found at depths of 2–21 m (6.6–68.9 ft). ^[4]

Description

Adults can grow up to 13 cm (5.1 in) in total length. ^[3] There are two coloration varieties in adults: individuals ranging from the Andaman Sea to Japan are black, while individuals from the western Pacific Ocean have a tan front and a yellow rear. The latter variety may deserve species status under the name N. xanthurus, ^[3] and the two varieties overlap around the island of Bali. ^[3] Juveniles are yellow with 2 longitudinal black stripes and a black spot at the pectoral-fin base.

Ecology

Diet

This species is omnivorous, feeding mainly on algae, crustaceans, tunicates, and salps. ^[3]

Behavior

This species is diurnal and normally solitary. ^[3] It is also territorial, ^[5] a trait that becomes more and more apparent as the fish gets older. ^[6]

Reproduction

During breeding, the female lays her eggs (which are demersal) on substrate. The male then guards them and aerates them until they hatch. ^[3]

In the aquarium

Juveniles are 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 22–25 °C (72–77 °F). ^[6] It chases smaller fishes and hides in crevices in order to avoid bigger fishes. ^[7]

References

1. Allen, G.R.; Arceo, H.; Mutia, M.T.M.; Muyot, F.B.; Nañola, C.L.; Santos, M. (2022). "Neoglyphidodon nigroris". IUCN Red List of Threatened Species . 2022 e.T188588A1898372. doi: 10.2305/IUCN.UK.2022-2.RLTS.T188588A1898372.en . Retrieved 3 April 2025.
2. Eschmeyer, W. N.; R. Fricke; R. van der Laan, eds. (1 March 2017). "Catalog of Fishes". California Academy of Sciences. Retrieved 2 March 2017.
3. Froese, Rainer; Pauly, Daniel (eds.). "Neoglyphidodon nigroris". FishBase . October 2016 version.
4. "Black-and-Gold Damselfish". ReefGuide. Retrieved November 28, 2014.
5. Hattori, Akihisa; Shibuno, Takuro (2013). "Habitat use and coexistence of three territorial herbivorous damselfish on different-size patch reefs" (PDF). Journal of the Marine Biological Association of the United Kingdom. 93 (8): 2265–2272. Bibcode:2013JMBUK..93.2265H. doi:10.1017/S0025315413000829.
6. "Black and gold Chromis – Neoglyphidodon nigroris". Aquarium's Life. March 23, 2009. Archived from the original on December 1, 2010. Retrieved November 29, 2014.
7. Youtube <<Advance Marine Aquarium>> Creatures section, Damselfish - Author:Sublanding Fish[2020-06-19]

External links

• Photos of Neoglyphidodon nigroris in the Sealife Collection