EnglishName: Threespot dascyllus,Domino
Local Name : Kalhu murakamas
Size : Common to 7 cm; max. 12 cm
Family: POMACENTRIDAE
Order : Perciformes
Distinctive Characters: Dorsal fin with 12 spines and 14-16 rays. Anal fin with 2 spines and 14-15 rays. Pectoral rays 19-21. Body depth 1.4-1.6 in standard length. Preopercular margin finely serrate. Suborbital bones scaled, their lower margins finely serrate.
Colour: Black to dark brown with 3 white spots, particularly prominent in juveniles. Adults generally lose the forehead spot, and the spot on the upperside is much reduced or frequently absent.
Habitat and Biology: Inhabits lagoons and reef areas up to 55 m. Occurs in small to large aggregations. Juveniles usually associate with sea anemones, Diadema sea urchins, or small coral heads. Feeds mainly on zooplankton and algae.
Distribution: Indo-Pacific.
Remarks: Dascyllus trimaculatus is very common in Maldives. It is a hardy species, and so despite its rather dull colouration it is popular with aquarists.