Back-fin codlet (Bregmaceros retrodorsalis) is a ray-finned fish of the family Bregmacerotidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 6.4 cm. It occurs at depths between 10 and 455 metres. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms.
Dorsal soft rays (total): 52 - 57; Anal soft rays: 58 - 63; Vertebrae: 55 - 58. This species is distinguished by the following characters: orgin of second dorsal-fin well posterior, above bases of 5th to 7th anal-fin rays; snout pointed distinctly longer than eye diameter; upper lobe of the opercle branched distally; body is relatively slender, its depth 10.0-13.0% SL; principal caudal-fin rays 13 (middle 11 branched); D2 52.57; A 58-63; transverse scale rows below orgin of second dorsal-fin 16-18; longitudinal scale rows along body axis 86-93; vertebrae 55-58; the entire body evenly covered with melanophores, those on lateral sides forming regular longitudinal rows, one melanophores per scale; head and isthmus are entirely, but loosely, covered with variably sized melanophores .Cross section: compressed.
Behavioural data for Back-fin codlet is currently being reviewed.
Marine; pelagic-neritic; depth range 10 - 455 m . Subtropical
No observations yet - be the first to log one!
View all observations for Back-fin codlet ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.