Ichthyology belonging to the subfamily Trichomycterīnæ of fishes (cat-fishes), found in South American rivers ( Cent. Dict.); also as noun; compare trichomycteroidadj. [ < scientific Latin Trichomycterus, genus name (1833; < tricho-tricho-comb. form1 + ancient Greek μυκτήρ nostril: see mucusn.) + -inesuffix1, after scientific Latin Trichomycterinae (1891 or earlier).]