Multicolorfin rainbowfish

Reddish brown dotted line between the black lines.

Scientific name	Halichoeres poecilopterus
English name	Multicolorfin rainbowfish
Japanese name	Kyusen
Classification	Actinopterygii
Classification details	Perciformes Labridae
Full length	~30cm
Distribution	South of Hakodate to Kyushu.

Characteristics

Males and females look different. The female has a light brown background with Japanese black vertical lines, and reddish brown dotted lines between the black lines. Males are yellow-green with vague vertical lines.

Ecology

Inhabits rocky reefs and sandy areas. They eat small animals such as crustaceans and shellfish. Adult fish are known to change sex, with adult females turning into males.

Habitat

Miura Peninsula Arasaki

Multicolorfin rainbowfish is relatively common in Arasaki. The individual photographed was foraging on the seafloor in shallow water. When the water depth comes out, large individuals can be seen.