Parakysis Hystriculus

📖 Overview

Parakysis Hystriculus (Parakysis hystriculus), first described by Ng, 2009 is a tiny fish in the family Akysidae (order Siluriformes). Adults typically reach 2.90 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. On the IUCN Red List, it is classified as Endangered.

🔬 Taxonomy

🐟 Physical Description

Parakysis hystriculus is distinguished from other members of the genus in having a combination of: branched pelvic-fin rays with anterior branch always shorter than posterior branch (vs. almost same length in congeners), lateral edges of head evenly sloping in dorsal view (vs. gently curving in congeners), anteriormost pair of accessory inner mandibular barbels longer than (vs. equal to or shorter than in congeners) distance separating bases of left and right barbel, outer mandibular barbel with one accessory barbel (vs. absent in P. anomalopteryx), mandibular laterosensory pore between bases of inner and outer mandibular barbels present (vs. absent in P. anomalopteryx), margin of lower lip with medial concavity (vs. entire in P. anomalopteryx), anal fin rounded (vs. polygonal or rectangular in P. grandis), caudal fin with narrow lobes having evenly-tapering posteromedial margins (vs. broad lobes with curved posteromedial margins in P. grandis and P. longirostris) and 10 (vs. 11 in P. verrucosus) branched rays without secondary branches (vs. with secondary branching in P. grandis) .: elongated.

🌀 Behaviour

Behavioural data for Parakysis Hystriculus is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical; 1°S - 2°S, 103°E - 104°E South East Asia : Sumatra.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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