Rising-sun cardinalfish (Apogon soloriens), first described by Yoshida & Motomura, 2020 is a tiny fish in the family Apogonidae (order Apogoniformes). Adults typically reach 3.10 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 4 to 45 metres. It occurs in Subtropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8; Vertebrae: 24. This species is distinguished by the following set of characters: D VI-I, 9; A II,8; pectoral-fin rays 13; developed gill rakers 8 or 9 (modally 9); total gill rakers (including rudiments) 15-18 (16); interorbital width 9.1-11.1% (mean 9.8%) of SL; supraneural bones 2; membranous flap at lower corner and along ventral margin of the preopercle; without black band on body below second dorsal fin; with a wide blackish band with reddish suffusion on the caudal peduncle from before midpoint to base of caudal fin .Cross section: compressed.
Behavioural data for Rising-sun cardinalfish is currently being reviewed.
Marine; reef-associated; depth range 4 - 45 m . Subtropical Northwest Pacific: Japan (Ogasawara Is.
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