Halfnaked jawfish
📖 Overview
Halfnaked jawfish (Opistognathus seminudus) is a ray-finned fish of the family Opistognathidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 8.6 cm. It occurs at depths between 0 and 22 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 14 - 16; Anal spines: 2; Anal soft rays: 14 - 15; Vertebrae: 28 - 29. This species is distinguished by the following set of characters: D XI (exceptionally X), 14-16; about 28-36 oblique scale rows in longitudinal series on body; no scales anterolaterally forward of verticals from ultimate spine to 2nd segmented dorsal-fin ray; conspicuous ocellus between spines 2-5 of dorsal fin; 1-3 vomerine teeth .: elongated.
🌀 Behaviour
Behavioural data for Halfnaked jawfish is currently being reviewed.
🦐 Diet
Diet information for Halfnaked jawfish is currently being compiled.
🥚 Reproduction
Reproduction data for Halfnaked jawfish is currently being compiled.
🌍 Habitat & Distribution
Marine; demersal; depth range 0 - 22 m . Tropical
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Halfnaked jawfish ↗Spotted incorrect or outdated data?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.