Serrapinnus Tocantinensis

📖 Overview

Overview information for Serrapinnus Tocantinensis is currently being compiled by our editorial team.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 10 - 11. Serrapinnus tocantinensis is distinguisged from its congeners by the elongation of the unbranched dorsal and pelvic-fin rays into filaments in mature males. It differs further from S. sterbai by the absence of a continuous mid-lateral black stripe extending from the opercular region to the caudal-peduncle spot. It can be separated from other congeners by having the following characters: 9 to 11 cusps in the premaxillary teeth (vs. 5 in S. microdon and S. potiguar, 7 in S. aster, 7 to 9 in S. calliurus, S. heterodon, S. kriegi, S. micropterus, S. notomelas and S. piaba and 10 to 12 in S. gracilis and S. littoris); dentary teeth without expanded cusps forming a sharp cutting edge (vs. dentary teeth with expanded cusps forming a sharp cutting edge in S. heterodon); hyaline dorsal fin (vs. with a proximal black blotch in S. notomela; and black spot absent on the posteroventral region of the abdomen (vs. present in S. kriegi) . : elongated.

🌀 Behaviour

Behavioural data for Serrapinnus Tocantinensis is currently being reviewed.

🦐 Diet

Diet information for Serrapinnus Tocantinensis is currently being compiled.

🥚 Reproduction

Reproduction data for Serrapinnus Tocantinensis is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Tocantins-Araguaia basin in Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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