Listrura Gyrinura

📖 Overview

Listrura Gyrinura (Listrura gyrinura), first described by Costa, Feltrin & Katz, 2023 is a tiny fish in the family Trichomycteridae (order Siluriformes). Adults typically reach 4.20 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 6 - 8; Anal soft rays: 8; Vertebrae: 51 - 52. This species is distinguished from its congeners by the following set of characters: deep caudal peduncle, deeper than the preanal region of the body, as the result of an expanded skin fold involving procurrent caudal-fin rays; vertebrae 51 or 52; process on the dorsal surface of the autopalatine articular facet for the mesethmoid absent; mesethmoid cornu being slightly posteriorly folded; dorsal fin present; dorsal-fin origin at a vertical between the centra of the 31st to 33rd vertebrae, anal-fin origin at a vertical between the centra of the 32nd and 33rd vertebrae; ventral projection on the hyomandibula articular facet for the opercle absent; parhypural posterior process length about half or slightly less of the length between the anterior margin of the parurohyal head and the proximal limit of the posterior process; ventral procurrent caudal-fin rays 31-36 .: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Listrura Gyrinura is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical South America: Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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