Banded Humbug, Dascyllus aruanus (Linnaeus 1758)


Other Names: Humbug, Humbug Dascyllus, White-tailed Footballer

Banded Humbug, Dascyllus aruanus, at Yankee Reef, Great Barrier Reef, Queensland. Source: Richard Ling / Flickr. License: CC by Attribution-NonCommercial-ShareAlike

Summary:

A small damselfish with three black bars on the head and body, a large white spot between the eyes, black pelvic fins and a white tail.

Banded humbugs are common inhabitants of shallow coral reefs. They form aggregations around coral bommies, often above Acropora corals, sheltering amongst the branches for protection.


Cite this page as:
Bray, D.J. 2020, Dascyllus aruanus in Fishes of Australia, accessed 27 Nov 2020, http://136.154.202.208/home/species/347

Banded Humbug, Dascyllus aruanus (Linnaeus 1758)

More Info


Distribution

Recorded in Australia from the Houtman Abrolhos to North West Cape, and offshore reefs of north Western Australia, Ashmore Reef in the Timor Sea, and the far northern Great Barrier Reef, Queensland, and reefs in the Coral Sea, to Sydney, New South Wales; also at Cocos (Keeling) Islands in the eastern Indian Ocean, and the Lord Howe Province in the Tasman Sea. Elsewhere the species occurs in the tropical, Indo-west-central Pacific.
Lives in a symbiotic mutualistic relationship with corals, preferring the coral host Pocillopora damicornis.

Features

Dorsal fin XII, 11-13; Anal fin II, 11-13; Pectoral fin 17-19; Gill rakers 21-26; Lateral line scales 15-19.

Size

10 cm TL, 8.5 cm SL

Colour

A black and white damselfish with three black bars, a large white spot between the eyes, black pectoral and pelvic fins and a white tail.

Feeding

Feeds on zooplankton in the water column.

Biology

Species of the genus Dascyllus are obligate coral dwellers. They are protogynous hermaphrodites, with females having the ability to change sex during their life cycle. One or two dominant males defend a single branching coral head with a harem of juveniles and females. In return for the shelter provided by the coral, the fish remove unwanted algal growth from the coral. Females spawn demersal adhesive eggs that are guarded by the male parent until the larvae hatch.

Fisheries

A popular aquarium fish.

Remarks

Hybridizes with the Headband Humbug, Dascyllus reticulatus,on the Great Barrier Reef, Queensland (He et al. 2019)

Similar Species

Most similar to Dascyllus melanurus which has the outer part of the tail black, a white outer margin on the middle part of the dorsal fin, and white lips.

Species Citation

Chaetodon aruanus Linnaeus, 1758. Systema Naturae 1: 275. Type locality: "Habitat in Indiis" [Aru Islands, Molucca Islands, Indonesia]

Author

Bray, D.J. 2020

Resources

Atlas of Living Australia

Australian Faunal Directory

Catalog of Fishes

Banded Humbug, Dascyllus aruanus (Linnaeus 1758)

References


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Quick Facts


CAAB Code:37372073

Biology:Hermaphrodite

Depth:0-20 m

Fishing:Aquarium fish

Habitat:Reef associated

Max Size:10 cm TL

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CAAB distribution map