Pimelodella Humeralis

📖 Overview

Collected along a sandy beach in the middle stretch of the river. Water parameters during the collection event were: 26.1-26.7ºC; pH 4.25-4.46; conductivity 76-77 mS. .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal spines: 4; Anal soft rays: 10 - 11; Vertebrae: 47 - 49. The species is distinguished from its congeners by the following set of characters: with a dark anteriorly oblique blotch in the humeral region, its anterior limit slightly ahead of vertical through the spinelet, and its posterior limit at vertical through the base of second branched dorsal-fin ray; 47-49 total vertebrae; 8-11 retrorse triangular, broad-based and strongly inclined dentations confined to basal three-fourths of pectoral-fin spine posterior margin; presence of an unpigmented region dorsally and ventrally adjacent to the dark midlateral stripe; maxillary barbels reaching at least the caudal fin insertion; the longest ray of dorsal-fin 18.7-22.5% SL; subequal caudal-fin lobes; dark midlateral stripe narrow, from pseudotympanum to the caudal-fin insertion, dorsal region of body without dark stripes; dorsal fin with hyaline stripe near base, followed distally by a dark stripe, then another hyaline stripe and distalmost two-fifths dark . : elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Pimelodella Humeralis is currently being reviewed.

🦐 Diet

Diet information for Pimelodella Humeralis is currently being compiled.

🥚 Reproduction

Reproduction data for Pimelodella Humeralis is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 4.3 - 4.5. Tropical; 26°C - 27°C South America: Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute