Heminodus

Heminodus is a genus of marine ray-finned fish belonging to the subfamily Peristediinae, the armoured gurnards or armored sea robins. It is currently considered to be a monotypic genus, its only species being Heminodus philippinus.

==Taxonomy== Heminodus was first described as a genus in 1917 by the American ichthyologist Hugh McCormick Smith when he was describing its only species H. phillipinus with its type locality being given as the Mindanao Sea off Tawi-tawi in the Philippines. Specimens collected in the eastern Indian Ocean off Western Australia between 1989 and 1991 were identified as probably belonging to the genus Hemidonus but were not identified to species, so may have been H. phillipinus or a new undescribed species. The genus name was not explained by Smith but means "half knot", may be an allusion to the short and spiny rostral processes as compared to the long and flat processes on the jaggedhead gurnard (Gargariscus prionocephalus). The specific name refers to the type locality.