Glassy jawfish

📖 Overview

Glassy jawfish (Opistognathus hyalinus), first described by Vaniz, 2023 is a tiny fish in the family Opistognathidae (order Perciformes). Adults typically reach 3.80 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 20 to 70 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 10 - 11; Anal spines: 2; Anal soft rays: 10. This species is distinguished from its congeners by the following set of characters: rigid upper jaw lacking flexible lamina posteriorly, extending about 0.7-1.0 eye diameters behind posterior margin of orbit; infraorbitals all trough-like, open laterally; absence of suborbital shelf on 3rd infraorbital; D XI, 10-11; A II, 10; vertebrae 10+15-17, typically 16; posterior infraorbital pore positions all or mostly occupied by single pores; preopercular pore positions occupied by single pores; total gill rakers 33-39; spinous dorsal fin with a wide submarginal dusky stripe, and interradial membranes between spines 1-4 or 5 either with or without a dark blotch of variable size and intensity; other fins unpigmented. .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Glassy jawfish is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Marine; demersal; depth range 20 - 70 m . Tropical West Pacific: Andaman Is, Philippines, Indonesia, and Papua New Guinea.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute