Trachycorystes Menezesi

📖 Overview

Found in abundance in tributaries of the rio Aripuanã, such as igarapé do Aeroporto and igarapé Genipapo, clear water creeks two or three m wide and up to 0.6 m deep, with forested margins and sandy bottoms where fallen trunks, branches and vegetal detritus were abundant. Collected using deep nets and by displacing the submerged debris, the natural hiding-places of the species. Feeds on fish, various insects as well a scorpion and a crustacean .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal soft rays: 19 - 22; Vertebrae: 41. Diagnosed from Trachycorystes trachycorystes by having the following characters: jaws equal in length (vs. lower jaw longer, prognathous in Trachycorystes trachycorystes); skull roof covered by thick integument concealing bony sculptures (vs. skull roof covered by thin integument, bony sculptures visible); inner mental barbel thin and very short, not reaching base of outer mental barbel (vs. inner mental barbel thicker, extending to or beyond base of outer mental barbel); dorsal-fin spine serrated only along posterior margin (vs. dorsal-fin spine serrated only along anterior margin); caudal fin weakly forked (vs. emarginate); gas bladder simple, without diverticula (vs. gas bladder with three posterior diverticula, one medial and paired posterolateral) .

🌀 Behaviour

Behavioural data for Trachycorystes Menezesi is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Aripuanã (Madeira drainage) and its tributaries above the falls of Dardanelos and Andorinhas in Mato Grosso State, Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🦠 Common Diseases

The following diseases are known to affect Trachycorystes Menezesi.

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute