body is oval and compressed. The snout is short and has
a concave profile. The dorsal and anal fins are rounded
and the caudal fins are slightly incised. The general
coloration of the body is dark blue. The head is black.
The dorsal fin is yellow, edged with black and light blue.
The caudal fin is light blue at the centre while the edges
are black and dark blue. The base of the pectoral fin
is orange. There is a yellow spot on the caudal peduncle
which indicates the position of the sharp erectile spine.
These fish live in schools and are herbivorous. They attain
a length of twenty centimetres.
body is oval and compressed. The mouth is terminal with
protruding incisors and the snout is pointed. The caudal
fin is rounded. The colouring of is very vivid making
it very easy to recognise. The clown triggerfish is one
the best known in its family. The upper portion of it
body is dark and speckled with yellow. The lower portion
is adorned with large white spots. The lips are a yellowish
orange and there is a yellow band beneath the eyes. The
clown triggerfish live along the outer wall of the reef
and grow to a length of 50 centimetres.