Hydrolycus armatus (Jardine 1841, up to 1.1m in length) is the extant dogtooth characin or payara of tropical South America. Here it nests with Salmo, the salmon. The skull is taller and narrower. The anterior teeth are longer. The maxilla extends to the quadrate. The jugal and postorbital are extensive. The intertemporal, supratemporal and tabular are reduced. A parietal crest is present. The long teeth are used for spearing piscine prey. The palate includes maxilla processes contacting the pterygoid and aventral extension of one of the cranial bones (mesethmoid) developing vomer-type fangs. This seems unlikely. Perhaps these are ordinary vomer fangs. Also note the internal naris perforating the palateinside the premaxilla.