Scientific Name
Heniochus varius

Common Name
Horned bannerfish

Biology
Dorsal spines (total): 11; Dorsal soft rays (total): 22-25; Anal spines: 3; Anal soft rays: 17 - 18. Mostly black with two white bands running from caudal peduncle and breast to each end of spinous section of dorsal fin. Young with banner (Ref. 48636). Adults develop a prominent hump on the forehead and a curved horn above each eye, and lose the elongate dorsal filament (Ref.1602).

Classification

Classified By

Cuvier, 1829

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Butterflyfishes (Chaetodontidae)

Distribution

Region

Pacific Ocean

Distribution

Pacific Ocean: Indonesia to the Society Islands, north to southern Japan, south to Rowley Shoals and New Caledonia; throughout Micronesia. Reported from Christmas Island in the eastern Indian Ocean (Ref. 5439). Replaced by Heniochus pleurotaenia in the Indian Ocean (Ref. 37816).

Range

32°N - 23°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

2 m

Depth To - meters

20 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 2 - 20 m (Ref. 1602)

Trophic Level

3.17 s.e. 0.42 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

19.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5039 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; aquarium: commercial

Vulnerability

Low vulnerability (14 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)