Polycentrus Jundia
📖 Overview
Polycentrus Jundia (Polycentrus jundia), first described by Coutinho & Wosiacki, 2014 is a tiny fish in the family Polycentridae (order Perciformes). Adults typically reach 2.80 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 15 - 16; Dorsal soft rays (total): 7 - 9; Anal spines: 11 - 12; Anal soft rays: 5 - 6. Polycentrus jundia can be distinguished from P. schomburgkii by the following characters: diagonal upper postorbital band being shorter than orbital diameter (vs. longer); median postorbital horizontal band present (vs. absent); subocular band being shorter than orbital diameter (vs. length of subocular band equal to or greater than orbital diameter; snout blunt (vs. protruding); mouth isognathous (vs. prognathous); serrations absent on lower edge of lacrimal or two tiny serrations at the posterior end (vs. 8-14 conspicuous serrations distributed throughout the lower edge); posterior edge of vertical arm of preopercle fully serrated (vs. smooth edge); five pungent opercular spines, the three dorsalmost largest (vs. one or two short spines); subopercle widely serrated along most of the edge (vs. no serrations); cleithrum with serrations on posterior dorsal margin (vs. no serrations); interopercle with widely serrated edge (vs. clusters of three to five serrations along the edge of varying position between individuals); fourth pectoral-fin ray reaching vertical through anal-fin origin (vs. reaching vertical from spine III or IV of anal fin); 19-20 scales on dorsal-fin base (vs. 26-31); 12-14 scales on anal-fin base (vs. 16-20); 19-21 predorsal scales (vs. 28-30); and median opercular blotch absent (vs. present) .
🌀 Behaviour
Behavioural data for Polycentrus Jundia is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical South America: Rio Negro basin in Brazil.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Polycentrus Jundia ↗Spotted incorrect or outdated data?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.