Trachycorystes menezesi Britski & Akama 2011

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 withthree posterior diverticula, one medial and paired posterolateral) (Ref. 87314).

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Analsoft rays: 19 - 22; Vertebrae: 41

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 (Ref. 87314).

梅尼氏粗盔鯰，為輻鰭魚綱鯰形目項鰭鯰科的其中一種，為熱帶淡水魚類，分布於南美洲巴西Aripuanã河流域，體長可達19.9公分，棲息在底層水域，生活習性不明。