Pseudexostoma Longipterus

📖 Overview

Pseudexostoma Longipterus (Pseudexostoma longipterus), first described by Zhou, Yang, Li & Li, 2007 is a small fish. Adults typically reach 9.90 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 5; Anal soft rays: 3 - 4. This species is distinguished from Pseudexostoma yunnanensis by the following characters: posterior margin of lower lip with 3 notches, depth of middle one shallower than lateral ones (vs. same depth), length of 2 smaller median lobes of lower lip longer than lateral lobes (vs. the same length); pelvic fin I, 3-4 (vs. I, 5); base of adipose fin longer, 37.8-45.1% SL (vs. 28.8-39.8); caudal peduncle more slender, depth 4.6-6.1% SL and 19.6-30.8% in length of caudal peduncle (vs. 6.4-8.3 and 32.6-42.7); premaxillary tooth band with 16-18 teeth (vs. 18-22), it is divided into 2 and are isolated (vs. connected partially). The species differs from P. brachysoma in having a longer pectoral fin 30.1-31.3% SL (vs. 24.9-29.8), pelvic 23.1-24.3% SL (16.1-22.9), and caudal 18-19.6% SL (vs. 13.6-17.9) fins; bigger eyes, diameter 8.2-10% HL (vs. 5.8-7.8) and wider interorbital width 25.5-30.8% HL (vs. 19.7-24.7) .: elongated.

🌀 Behaviour

Behavioural data for Pseudexostoma Longipterus is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; demersal. Temperate known only from the middle Nujiang (= Salween) basin.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

📊 Population Risk & Fisheries

🐠 Related Species

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