Isbrücker's Hypopygus

📖 Overview

Isbrücker's Hypopygus (Hypopygus isbruckeri), first described by de Santana & Crampton, 2011 is a small fish in the family Rhamphichthyidae (order Gymnotiformes). Adults typically reach 9.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.

🔬 Taxonomy

🐟 Physical Description

Hypopygus isbruckeri is diagnosed from congeners by the following combination of characters: the total number of anal-fin rays (136–156 versus 102–135 in H. hoedemani, H. lepturus, and H. minissimus), the presence of the sixth infraorbital bone (versus absence in H. hoedemani, H. lepturus, and H. minissimus), the presence of oblique bands (versus absence in H. minissimus), the presence of scales at midbody (versus absence in H. minissimus), the total number of pectoral fin rays (12–16 versus 10–12 in H. nijsseni), the number of scales above the lateral line (seven to eight versus five to six in H. nijsseni, and three to five in H. neblinae), the head length (13.2–22.9% of LEA versus 12.6–13.9 in H. ortegai), and the dorsal rami of intermittent branch of anterior lateral line nerve visible as two black parallel lines (versus not visible in H. ortegai) .: elongated.

🌀 Behaviour

Behavioural data for Isbrücker's Hypopygus is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Hypopygus isbruckeri is known only from the vicinity of San Fernando de Atabapo, Amazonas, Venezuela (Ref.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

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