As the perch only grows to 6cm, it has developed various strategies for its protection, forming groups that seek shelter between sea urchins, black corals and gorgonians.
Characteristic is a semi-transparent, whitish body colouring with a pointed, dark brown central stripe, in the middle of the caudal fin base there is a pupil-sized black spot a thin, dark mid-lateral stripe.
Colour and identification:
The animal is generally translucent to whitish with silvery reflections on head and belly.
A diffuse to distinct brown stripe, which extends from the tip of the snout through the eye to the middle of the base of the caudal fin, tapers towards the back and ends in a striking black spot (about pupil size or slightly larger) is also particularly striking.
A pair of silver stripes on the snout, which run through the eye at the level of the upper and lower pupil edge and translucent whitish fins complete the short description of the cardinalfish.
The word "ostorhinchus" comes from the Greek, "osteon" means "bone", the word "rhynchos", which also comes from the Greek, stands for the "beak" and refers to the bony jaws, which are very advanced and jagged, taking the place of the teeth.
The Greek word "cladophilos" stands for "klados" = "branch" and the Greek word "philo" means "loving". The name refers to the habit of the species to hide between branches of antipatharic and alcyonarian corals and sea urchins.
Similar species: Ostorhinchus capricornis (Allen & Randall, 1993)
Synonym: Apogon cladophilos (Allen & Randall, 2002)