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Phylum Chordata > Subphylum Vertebrata > fishes > Family Pomacentridae
Black-spot sergeant
Abudefduf sordidus

Family Pomacentridae
updated Sep 2020
Where seen? This fish was seen once at Sisters Islands near living reefs.

Features: To about 23cm, the one seen about 8cm long. Head and body white. It is identified by the prominent black spot at the top of the tail just before the tail fin. Like other sergeants, it has about 6 dark or grey bars. More on how to tell apart sergeants.

Sisters Island, Aug 08

Sisters Island, Aug 08
What does it eat? It is said to feed on algae, crustaceans and other invertebrates during the day.

Human uses: It is considered a food fish in Hawaii.

Black-spot sergeants on Singapore shores
On wildsingapore flickr



  • Ria Tan. 26 December 2014. Blackspot sergeant at Sisters Island. Singapore Biodiversity Records 2014: 333
  • Allen, Gerry, 2000. Marine Fishes of South-East Asia: A Field Guide for Anglers and Divers. Periplus Editions. 292 pp.
  • Lieske, Ewald and Robert Myers. 2001. Coral Reef Fishes of the World Periplus Editions. 400pp.
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