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.4
There are nine genera:5
Several species have uncertain generic placement and are placed in Centroleninae Incertae Sedis, awaiting for more information:6
The AmphibiaWeb includes Ikakogi Guayasamin, Castroviejo-Fisher, Trueb, Ayarzagüena, Rada, and Vilà, 2009 in this subfamily,7 whereas it is not included in any subfamily in the Amphibian Species of the World.8
Frost, Darrel R. (2015). "Centroleninae Taylor, 1951". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 20 June 2015. http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Centrolenidae/Centroleninae ↩
"Centrolenidae Taylor, 1951". Integrated Taxonomic Information System. Retrieved 20 June 2015. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=208050 ↩
Guayasamin, J. M.; Castroviejo-Fisher, S.; Trueb, L.; Ayarzagüena, J.; Rada, M.; Vilà, C. (2009). "Phylogenetic systematics of glassfrogs (Amphibia: Centrolenidae) and their sister taxon Allophryne ruthveni". Zootaxa. 2100: 1–97. doi:10.11646/zootaxa.2100.1.1. hdl:1808/13694. http://www.mapress.com/zootaxa/list/2009/zt02100.html ↩
"Centrolenidae". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2015. Retrieved 20 June 2015. http://www.amphibiaweb.org/lists/Centrolenidae.shtml ↩
Frost, Darrel R. (2015). "Centrolenidae Taylor, 1951". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 20 June 2015. http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Centrolenidae ↩