Royal threadfin
📖 Overview
Adults occur over sandy and muddy bottoms in shallow waters , frequently in brackish waters and estuaries . Carnivorous , They feed on fish and shrimps .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 9; Dorsal soft rays (total): 14 - 18; Anal spines: 3; Anal soft rays: 28 - 30. Diagnosis: detached pectoral filaments very long, exceeding body length; base of anal fin much longer than base of 2nd dorsal fin; body moderately elongate and compressed, its height comprised 3.0-3.4 in standard length; snout very short, blunt and prominent; mouth inferior; maxillary bone strongly widened at its end, reaching largely past eye; 2 widely separated dorsal fins, 1st with 8 flexible spines, 2nd with 1 spine and 14-18 soft rays; anal fin base much longer than 2nd dorsal fin base; pectoral fin inserted very low on body; threadlike filaments, 5 in number, 4 of them longer than total length of fish; scales ctenoid; head scaly . Coloration: body uniformly silvery, greyish on back, shading to whitish ventrally; fins tinged with yellow .: fusiform / normal.
🌀 Behaviour
Behavioural data for Royal threadfin is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; brackish; demersal; depth range 10 - 70 m . Tropical; 21°N - 18°S, 27°W - 14°E
🌿 Ecology
fish and shrimps (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Polynemus artedii | Bennett | 1831 | Synonym |
| Polynemus macronemus | Pel | 1851 | Synonym |
| Polynemus peli | Njock | 1990 | Heterotypic |
| Polynemus quinquarios | Linnaeus | 1758 | Synonym |
| Polynemus quinquarius | Linnaeus | 1758 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 716 records indexed .
👥 Community & Contribute
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