Stegastes adustus

Stegastes adustus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Perciformes
Family:	Pomacentridae
Genus:	Stegastes
Species:	S. adustus
Binomial name
Stegastes adustus (Castelnau, 1855)

Stegastes adustus, the dusky damselfish or scarlet-backed demoiselle, is a damselfish of the family Pomacentridae found at one- to three-meter depths on surging and wavy coral reefs in the Caribbean Sea, the tropical waters of the western Atlantic Ocean, and the Gulf of Mexico.

Adults feed on algae, plants, and detritus. S. adustus exhibits different feeding behaviors between those that live in coral rubble and patch reef habitats.

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Wikipedia