nematognath
/ˈnɛmətə(ʊ)naθ/ /ˌnɛməˈtɒɡnaθ/ /ˈniːmətə(ʊ)naθ/Ichthyol.
noun
A fish of the order Nematognathi (now Siluriformes); a catfish. Now rare or disused.
Origin
Late 19th century (in an earlier sense). From nemato- + -gnath, after scientific Latin Nematognathi, order name.