Mediterranean rainbow wrasse
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The Mediterranean rainbow wrasse (Coris julis) is a small, colourful fish in the family Labridae. It can be found in the Mediterranean Sea and in the northeast Atlantic Ocean from Sweden to Senegal (though it is a rare wanderer to the southern British Isles).[1][2] Records of this species south from Senegal and the Cape Verde Islands are actually the closely related Coris atlantica.[2]
It feeds on amphipods, isopods, sea urchins, polychaete, shrimps, and small gastropods.[2]
Description
Like many wrasses, C. julis is a sequential hermaphrodite: all start in the smaller initial phase. These initial-phase individuals (both females and males) can turn into the larger secondary-phase males.[3] At a length of about Script error: No such module "convert"., all individuals are secondary-phase males.[2] The maximum length for the species is Script error: No such module "convert".. There is a marked difference in the appearance of the two phases. In the Mediterranean Sea, the secondary-phase male is green, blue, or brown, with white belly, a dark blue spot over the ventral fin, and a bright orange band on the side, while the smaller primary-phase females and males are brown with yellowish sides and white bellies.[4] Populations in the Atlantic differ in colour and genetics from the Mediterranean population, but are maintained in a single species at present.[5][3] If found to be separate, the scientific name Coris festiva (at present considered a synonym of C. julis) is available for the Atlantic population.
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Habitat
It is typically found near the shore in places with seagrass or rocks. It is usually found at depths of Script error: No such module "convert"., but occurs as deep as Script error: No such module "convert"..[2]
Gallery
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Female
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Male
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Females
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Females feeding
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Female
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Female
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Male
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Male displaying dorsal fin
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Male
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Male
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References
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