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Species: Dascyllus aruanus, Whitetail Dascyllus

All Families:   All Genera:   All Species:

white + 3 broad black bars
D,A & pelvics black
C white

Dascyllus aruanus (Linnaeus, 1758)

Whitetail Dascyllus

Body a deep oval, compressed; upper and lower head profiles convex; snout very short, blunt; bone under eye and preoperculum finely serrated; head scaled except for front of snout; bone under eye scaled; teeth conical; gill rakers 21-26; dorsal fin XII, 11-13; anal fin II, 11-13; pectoral fin 17-19; tail fin bluntly forked, upper and lower edges of fin base with 2-3 short, projecting spiny rays; scales large, 15-19 on lateral line.

Head and body white; three broad black bars from top to bottom profiles: 1st from nape through eye and enclosing mouth, 2nd from center of spinous dorsal fin through pectoral base and to pelvics, 3rd on tail base; tail fin white; dorsal fin white, with black edge and last two black body bars extending across it; anal fin black, with white front; pectorals translucent, with black base; pelvics black

Reaches 10 cm

Forms aggregations around small live branching coral colonies

Depth range 1-20 m

Indo-central Pacific; introduced to SE Florida.

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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Bottom + water column
  • Near Bottom
  • Reef only
  • Water column
  • Corals
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Data
  • Omnivore
  • Planktivore
  • Data
  • Zooplankton
  • Benthic microalgae
  • Mobile benthic crustacea (shrimps/crabs)
  • Mobile benthic worms
Egg Type
  • Benthic
  • Data
  • Pelagic larva
Global Endemism
  • All species
  • Exotic (Introduced)
  • Greater Caribbean non-endemic
Regional Endemism
  • Continent
  • Continent only
  • Exotic (Introduced)
  • GC non-endemic
  • All species
  • Vagrant
Climate Zone
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 10
Depth Range Min
  • 1
Depth Range Max
  • 20