Scarus tricolor   Bleeker,  1847 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Size: 18-40 cm.

Weight: 2.5 kg.

Color: 2 adult color phases; initial phase- upper half of body dark purplish to blackish, shading on lower side to blue-green and blue, the edges of the scales blackish, becoming orange-yellow ventrally, the scales still with black edges; head and thorax blackish (top of head may be paler); dorsal fin blackish, suffused with light red; anal fin orange-yellow; caudal fin light red; pectoral fins with blackish rays and pale membranes ; pelvic fins dusky yellowish to orangish; dental plates whitish; terminal phase - body green with a crescentic pale salmon-pink bar basally on each scale; head dull lavender, suffused with green dorsally above a horizontal green band at level of lower edge of orbit; cheek and opercle below the green band orangish; another green band from front of snout through upper edge of eye to upper end to upper end of gill opening; a broad margin of salmon-pink on upper lip; lower lip edged with blue-green, followed by a transverse band of salmon, then a transverse band of blue-green which is linked to a broad longitudinal band of the same color ventrally on head; dorsal and anal fins with blue distal margins, a broad median band of light salmon-pink, and a narrow green basal band; caudal fin blue-green with a submarginal band of lavender-pink in each lobe connected across the basal scaled part of fin with a broad irregular bar of same color; pectoral fins with dusky reddish rays, pale membranes, and a broad upper border of blue-green; axil of pectoral fins mainly yellow; pelvic fins pale salmon-pink with a broad pale bluish margin.

A slender fish, the body depth contained 2.7 to 3.5 times in standard length. Head profile pointed; mouth almost terminal; teeth fused in upper and lower jaws to form dental plates; plates smooth, the individual teeth only visible at free margin of plates; upper jaw enclosing lower jaw with the mouth closed; lip covering about 2/3 of dental plates; 0 to 2 canines posteriorly on upper dental plates; 5 to 7 (usually 6) median predorsal scales; 3 rows of scales on cheek, with 6 to 9 (usually 7 ) scales in dorsal row, 6 to 10 (usually 8 ) scales in middle row, and 3 to 6 (usually 4 or 5) scales in ventral row. Pectoral fins with 12 (occasionally 11 or 13) branched rays; caudal fin truncate to moderately emarginate in initial phase, becoming lunate with long caudal lobes in terminal phase.

Synonym (s)
Callyodon lepidus Smith, 1959
Callyyodon urbanus Smith, 1959
Scarus lepidus Schultz, 1969
Callyodon cyanognathos Smith, 1959

Common Name (s)
• Tricolour parrotfish (English)
Economic Importance and Threats
Importance:  Commercial
(Fisheries, aquarium)

Habitat:  Reef Associated
Trophic Level:  Consumer
Prey:  Algae



Literature Source(s)
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 3 Available at -

Page last updated on:2010-05-13

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