Viviparous halfbeak
📖 Overview
Viviparous halfbeak (Zenarchopterus gilli), first described by Smith, 1945 is a medium-sized fish in the family Zenarchopteridae (order Beloniformes). Adults typically reach 20.00 cm in maximum length. It is diadromous, migrating between freshwater and marine environments during its life cycle. 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): 0; Dorsal soft rays (total): 10 - 12; Anal spines: 0; Anal soft rays: 11 - 13; Vertebrae: 38 - 39. Upper jaw about as long as wide. Top of snout uniform brown. Sixth anal ray of males greatly enlarged and elongated, reaching the tip of the caudal fin in adults. Fourth dorsal ray of adult males elongated, thickened distally, curving back to the base of the caudal fin. Vertebrae 38-39. Dorsal rays 10 in females and 11 or 12 in males. Anal rays 10-12 in females and 13 in males. : elongated; Cross section: oval.
🌀 Behaviour
Behavioural data for Viviparous halfbeak is currently being reviewed.
🦐 Diet
🥚 Reproduction
Ovoviviparous.
🌍 Habitat & Distribution
Marine; freshwater; brackish; reef-associated; amphidromous ; depth range 0 - ? m. Tropical East Indies, Caroline Islands, Fiji, Guam and northern Australia.
🌿 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View all observations for Viviparous halfbeak ↗Spotted incorrect or outdated data?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.