Mediterranean Rainbow Wrasse

Physical Characteristics

Slender, elongated body with a pointed snout. Coloration varies by sex and age: females and juveniles (Initial Phase) are brown to brownish-orange with a dark horizontal band; terminal males are brightly colored with a jagged orange-red band on the side and a dark spot behind the gill cover.

Habitat & Distribution

Inhabits the Mediterranean Sea and the eastern Atlantic Ocean. Found in shallow coastal waters, typically over Neptune grass (Posidonia) meadows or rocky reefs at depths from 1 to 120 meters.

Size & Weight

Standard size is 15-20 cm, with a maximum recorded length of 25 cm. Weight is generally light, typically under 100 grams.

Similar Looking Species

Thalassoma pavo (Ornate Wrasse), which has a more robust body and vertical blue barring in males. It can also be confused with juvenile Labrus species, though Coris julis has a more distinct horizontal line pattern.

Ecological Role

This species is a protogynous hermaphrodite (starts life as female and can turn male). It acts as a carnivore, feeding on small gastropods, sea urchins, worms, and crustaceans. It is classified as 'Least Concern' by the IUCN.

Identified on: 4/7/2026

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