Doublesash butterflyfish

The doublesash butterflyfish, (Chaetodon marleyi), also known as the fourbanded butterflyfish or Marley’s butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the southwestern Indian Ocean and the extreme southwestern Atlantic Ocean off southern Africa.

Doublesash butterflyfish
Chaetodon marleyi.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Chaetodontidae
Genus: Chaetodon
C. marleyi
Binomial name
Chaetodon marleyi
Regan, 1921


The doublesash butterflyfish has a silvery-white body marked with three broad yellowish-brown vertical bands, another one runs through the eyes, and there is a similar coloured caudal peduncle. The caudal fin has a yellow band while the dorsal and anal fins are yellow.[2] The dorsal fin contains 11 spines and 23-24 soft rays while the anal fin has 3 spines and 18-19 soft rays. This species attains a maximum total length of 20 centimetres (7.9 in).[3]


The doublesash butterflyfish is found off Southern Africa from Delagoa Bay in Mozambique to Lambert's Bay on the Atlantic coast of Western Cape Province in South Africa.[1]

Habitat and biologyEdit

The doublesash butterflyfish can be found on both rock and coral reefs, as well as in estuaries.[3] They may be found at depths of up to 120 metres (390 ft).[1] This is an oviparous species which forms pairs for spawning.[3] This species is omnivorous and feeds on macroalgae,[2] as well as benthic invertebrates such as polychaetes, crustaceans, hydroids and ascidians.[4]


The doublesash butterflyfish was first formally described in 1921 by the English ichthyologist Charles Tate Regan (1878-1943) with the type locality given as East London.[5] Regan honoured the collector of the type, the Natal fisheries officer Harold Walter Bell-Marley (1872-1945), in the specific name.[6] Its closest relative is the West African Chaetodon hoefleri.[4] Some authorities place this species within the nominate subgenus Chaetodon but others consider it to be incertae sedis.[6]


  1. ^ a b c Rocha, L.A.; Pyle, R.; Myers, R.F. (2010). "Chaetodon marleyi". IUCN Red List of Threatened Species. 2010: e.T4362A10816177. doi:10.2305/IUCN.UK.2010.RLTS.T4362A10816177.en. Retrieved 16 November 2021.
  2. ^ a b "Chaetodon marleyi". Saltcorner!. Bob Goemans. 2012. Retrieved 31 December 2020.
  3. ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2019). "Chaetodon marleyi" in FishBase. December 2019 version.
  4. ^ a b Vine, Niall Gordon (1998). "Aspects of the biology of the doublesash butterflyfish, Chaetodon marleyi (Pisces : Chaetodontidae)". Rhodes University. Archived from the original on 2012-12-24. Cite journal requires |journal= (help)
  5. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Chaetodon". Catalog of Fishes. California Academy of Sciences. Retrieved 31 December 2020.
  6. ^ a b Christopher Scharpf & Kenneth J. Lazara (21 July 2020). "Order ACANTHURIFORMES (part 1): Families LOBOTIDAE, POMACANTHIDAE, DREPANEIDAE and CHAETODONTIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 29 December 2020.