Bluespot Damsel

Pomacentrus grammorhynchus

Size to 12 cm.
The adult is dark brown to yellow tan; blue to lavender spots and markings on cheek and gill cover; may have 'dark ear'spot, neon-blue saddle spot over upper tail base. Tail orange in Java sea.

The juvenile of 3-4.5 cm is blue-gray gradating to yellow over most of lower and rear body and adjacent fins; neon-blue lines on upper head and back; blue spot on upper tail base. Usually found around branching corals.

Adults inhabit lagoons and passages among branching corals. They occur solitarily or in small groups. Feed mainly on benthic algae. Oviparous, distinct pairing during breeding. Eggs are demersal and adhere to the substrate. Males guard and aerate the eggs.

Marine; reef-associated; non-migratory; depth range 2 - 12 m.
Western Pacific: Philippines, New Guinea, Rowley Shoals, Great Barrier Reef, and Palau (Belau), Truk, and Pohnpei in Micronesia.
Taxonomy
KingdomAnimalia
DivisionChordata
ClassActinopterygii
OrderPerciformes
FamilyPomacentridae
GenusPomacentrus
SpeciesPomacentrus grammorhynchus
Photographed in
Indonesia