Description:

Dorsal spines: 13; Dorsal rays: 13-14; Anal spines: 2; Anal rays: 13-14.
Oblong, laterally compressed small fish. Terminal mouth. Broad peduncle. Long base dorsal fin soft dorsal more elongate than hard dorsal. Forked tail 
Colour. Dark grey-brown body, dorsal and anal fins. 5 narrow white bars on the sides, the 5th at the end of the caudal peduncle. Dark margin to opercle. Pectoral fin hyaline with dark spot at axil. Caudal fin yellow. 
 

Maturity: Lm unknown. Range unknown. Max Length: 17cm TL. 

Inhabits the upper edges of sheltered drop-offs and inshore reefs with moderate to strong wave action (depth 1-12m). Occurs in small groups. Feeds mainly on zooplankton. Oviparous, distinct pairing during breeding. Eggs are demersal and adhere to the substrate. Males guard and aerate the eggs.

This species is not protected or subject to fishery regulations. It is caught in the fish trap fishery, but is an uncommon component of the catch, possibly because it is usually returned to the water when caught. 

Bray, D.J.  Abudefduf notatus in Fishes of Australia, http://fishesofaustralia.net.au/home/species/4842 (06/07/19).

Froese, R. & D. Pauly. Eds. 2019. FishBase. http://www.fishbase.us/summary/SpeciesSummary.php?genusname=Abudefduf&speciesname=notatus (06/07/19).

Jenkins, A. et al 2017. Abudefduf notatus. The IUCN Red List 2017: e.T188537A1889540.  http://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T188537A1889540.en. (06/07/19).