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Phylum Chordata > Subphylum Vertebrate > fishes > Family Chaetodontidae
Copperband butterflyfish
Chelmon rostratus

Family Chaetodontidae
updated Sep 09

if you learn only 3 things about it ...
Has a false eye to distract potential predators.
This fish forms monogamous pairs.
It does poorly in a home aquarium, Don't collect them.

Where seen? This gaily patterned fish is commonly seen on many of our shores, among coral rubble and near reefs. It is said to be more active during the day, but those seen at night were quite frisky.

Features: To about 20cm, those seen during low tide usually about 4-8cm. Four bands across the body which are orange or yellow edged in black and white. A pointed snout and a distinctive white-ringed black eye spot on the dorsal fin. The pelvic fins are bright orange and yellow. Usually seen alone or in pairs. It is sometimes called the Beaked coralfish.

Adults have proportionally taller fins and usually found in monogamous pairs, swimming in the open near the sea bottom. Juveniles are solitary, more secretive and found in shallower water.

What does it eat? It eats mostly worms.


Human uses: Unfortunately these beautiful fishes are popular in the live aquarium trade although they are considered among the most difficult to keep and feed.

Sentosa, Oct 03

Pointed snout to nibble on small things.
Fish traps left on the intertidal often contain several of these beautiful fishes. Sometimes, they are already dead as the trap is exposed out of water.

Status and threats: The Copperband butterflyfish is not listed among the threatened animals of Singapore. But like other creatures of the intertidal zone, it is affected by human activities such as reclamation and pollution. Over-collection can also have an impact on local populations.

They are often caught in fish traps
Kusu Island, Jun 04

It almost disappears when seen
from above or head on.
Sentosa, Oct 03

Copperband butterflyfishes on Singapore shores


Pulau Sekudu, Jul 04

Pulau Sekudu, Jul 08

Chek Jawa, Jun 06

more photos of copperband butterflyfishes on Singapore shores
northern shores | southern shores

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References

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