Centroleninae
Centroleninae is one of two subfamilies of the family Centrolenidae. It has nine genera distributed in Central America from Honduras south and east to northern and central South America. As of mid 2015, it contains 117 species. Taxonomy. Centroleninae are defined based on molecular and morphological characteristics, none of which are obvious to a naked eye. However, in several species a fighting behaviour that might be synapomorphy has been observed: males dangle by their feet and grapple venter-to-venter; amplexus-like or wrestling on leaves fighting of Hyalinobatrachinae is hypothesized to be primitive behaviour. Their sister taxon is  ambiguous, it is either genus "Ikakogi" or subfamily Hyalinobatrachinae. Genera. There are nine genera: Several species have uncertain generic placement and are placed in Centroleninae "Incertae Sedis", awaiting for more information: The AmphibiaWeb includes "Ikakogi" in this subfamily, whereas it is not included in any subfamily in the Amphibian Species of the World.