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The Oxycheilinus digramma or bandcheek wrasse belong to the family „Labridae“ and subfamily „Cheilininae“, a widespread predator of invertebrates and part of a diverse assemblage of wrasses found in coral reefs in the Indian and Pacific Oceans. Distributed to the Indo-Pacific from the Red Sea along the coast of East Africa to the Marshall Islands and Samoa. They inhabited coral rich lagoons and coral reefs may be external to a depth of 120 meters. The species is observed to swim with a group of goatfish and they're able to change their color to some extent at will to resemble these fish, it then darts out from the group to catch small, unwary fish.
Synonyms:
Cheilinus coccineus Rüppell, 1828
Cheilinus commersoni Bennett, 1832
Cheilinus diagramma (Lacepède, 1801)
Cheilinus diagrammus Valenciennes, 1840
Cheilinus diagrammus (Lacepède, 1801)
Cheilinus digramma (Lacepède, 1801)
Cheilinus digrammas (Lacepède, 1801)
Cheilinus digrammus (Lacepède, 1801)
Cheilinus lacrymans Valenciennes, 1840
Cheilinus radiatus Valenciennes, 1840
Cheilinus roseus Valenciennes, 1840
Labrus digramma Lacepède, 1801
Oxycheilinus diagrammus (Lacepède, 1801)
Oxycheilinus digrammus (Lacepède, 1801)
Sparus radiatus Bloch & Schneider, 1801
Classification: Biota > Animalia (Kingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Gnathostomata (Superclass) > Pisces (Superclass) > Actinopterygii (Class) > Perciformes (Order) > Labridae (Family) > Cheilininae (Subfamily) > Oxycheilinus (Genus)
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!