Banded butterflyfish

Chaetodon striatus

The banded butterflyfish is a butterflyfish found in the tropical western Atlantic Ocean from Brazil to Bermuda. Common names include the banded butterflyfish, the butterbun, the butterflyfish, the Portuguese butterfly, the school mistress and the banded mariposa.

The name is derived from the dark vertical bands on the fish's body. This, combined with a vertical, black bar through the eye, is an antipredator adaptation, the bands disrupting the body's outlines.
Banded butterflyfish (Chaetodon striatus) Cozumel, Quintana Roo, Mexico. Jul 17, 2017 Banded butterflyfish,Chaetodon striatus,Geotagged,Mexico,Summer

Appearance

The banded butterflyfish grows to a maximum length of about 16 cm . The dorsal fin has 12 spines and 19 to 21 soft rays. The anal fin has 3 spines and 16 to 17 soft rays. The colour of this fish is silvery with a slender black bar passing through its eye, two wide black bars in mid-body and a third wide bar that starts on the rear of the dorsal fin and continues to the caudal peduncle. The pelvic fins and the caudal fin are black.
Banded Butterflyfish  Banded butterflyfish,Chaetodon striatus

Distribution

This fish is native to the tropical and subtropical western Atlantic Ocean at depths down to about 55 metres but mostly in less than 20 metres . Its range extends from Massachusetts in the United States to Santa Catarina in Brazil, and includes the Caribbean Sea, the Gulf of Mexico, Bermuda and Saint Peter and Saint Paul Archipelago. It is a benthic fish and is found on coral reefs.
Banded Butterflyfish Sep 13, 2017. Seen in the dive site Weber'sJoy/Witches Hut.
They are often seen in couple, as they are monogamous and pair for life. Banded butterflyfish,Caribbean Netherlands,Chaetodon striatus,Geotagged,Summer

Status

''C. striatus'' is a common species with a wide range. Although it is sometimes harvested for the reef aquarium trade, this is not thought to significantly impact the population which is believed to be stable. For these reasons, the International Union for Conservation of Nature has rated the fish's conservation status as being of "least concern".
butterflyfish  Banded butterflyfish,Chaetodon striatus,Geotagged,St Vincent and the Grenadines,Summer

Behavior

The banded butterflyfish is usually seen singly or in pairs, but can occur in small shoals of about twenty individuals. The diet is mainly small invertebrates, crustaceans, coral polyps, polychaete worms and various eggs. Sometimes it will act as a cleaning fish and remove the external parasites from surgeon fishes, grunts and parrot fishes.

Habitat

This fish is native to the tropical and subtropical western Atlantic Ocean at depths down to about 55 metres but mostly in less than 20 metres . Its range extends from Massachusetts in the United States to Santa Catarina in Brazil, and includes the Caribbean Sea, the Gulf of Mexico, Bermuda and Saint Peter and Saint Paul Archipelago. It is a benthic fish and is found on coral reefs.

References:

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Status: Least concern
EX EW CR EN VU NT LC
Taxonomy
KingdomAnimalia
DivisionChordata
ClassActinopterygii
OrderAcanthuriformes
FamilyChaetodontidae
GenusChaetodon
SpeciesC. striatus