Copperband butterfly fish

Chelmon rostratus
The elongation of the "beak" of the
copperband butterfly fish (more
pronounced than that of the
Chaetodon genus) has evolved
to enable it to pick out food
from crevices in the coral. This
robust species swims slowly,
except when it is alarmed. It
feeds on small, live prey,
notably crustaceans.
Size: 17 cm.