Neha Patil (Editor)

Halichoeres richmondi

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Kingdom
  
Animalia

Class
  
Actinopterygii

Family
  
Labridae

Rank
  
Species

Phylum
  
Chordata

Order
  
Perciformes

Genus
  
Halichoeres

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Halichoeres richmondi, commonly called the Richmond's wrasse or chain-lined wrasse, is a fish species in the wrasse family native from the central Indo-Pacific.

Contents

Description

The Richmond's wrasse is a small fish that can reach a maximum length of 19 cm.

It has a thin, elongate body with a terminal mouth and a more pointed snout than other wrasse belonging to genus Halichoeres.

Body coloration has few variations according to age.

The juvenile has a light blue-green background color with many orange stripes. It has also two black ocellus: the first one on top part of its caudal peduncle and the second one in the middle of its dorsal fin. A black spot occurs on the first rays of the dorsal fin. Juveniles and females have in common an orange anal fin.

Mature male are quite different. Their body is greenish with many fin blue lines that are chain-like. A concave head profile with a green-brown color. The external border of their dorsal, caudal and anal fins are blue.

Distribution & habitat

The chain-lined wrasse is widespread throughout the tropical and subtropical waters of the central Indo-Pacific, from Indonesia to Philippines and from Solomon Islands to south Japan.

This wrasse occurs in shallow waters from lagoons and channels rich in soft coral down to a depth of 12 meters.

Biology

The chain-lined wrasse lives and feeds in small loose groups. It is a benthic predator that feeds mainly on small marine invertebrates such as crustaceans, molluscs, worms and echinoderms captured on or in the substrate. Like most wrasse, the chain-lined wrasse is a protogynous hermaphrodite, i.e. individuals start life as females with the capability of turning male later on.

Conservation status

The species is targeted but not thought to be threatened by the aquarium trade. It is listed as Least Concern (LC) on the UICN

References

Halichoeres richmondi Wikipedia