Ranoidea (genus)

  (Redirected from Cyclorana)

Ranoidea is a genus of frogs in the subfamily Pelodryadinae. They are found in Australia, New Guinea, and two nearby groups of islands: Maluku Islands (=Moluccas) and Louisiade Archipelago.[1] The circumscription of this taxon is still controversial.

Litoria aurea green2.jpg
Ranoidea aurea, the type species
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Pelodryadidae
Subfamily: Pelodryadinae
Genus: Ranoidea
Tschudi, 1838
Type species
Ranoidea jacksoniensis
Tschudi, 1838
  • Dryopsophus Fitzinger, 1843
  • Euscelis Fitzinger, 1843
  • Pelodryas Günther, 1859 "1858"
  • Cyclorana Steindachner, 1867
  • Phractops Peters, 1867
  • Chirodryas Keferstein, 1867
  • Mitrolysis Cope, 1889
  • Fanchonia Werner, 1893
  • Brendanura Wells and Wellington, 1985
  • Neophractops Wells and Wellington, 1985
  • Mosleyia Wells and Wellington, 1985
Ranoidea novaehollandiae is the type species of the genus Cyclorana which—pending further studies—may become recognized again.[2]


Species in this genus were until recently placed in the then-paraphyletic genus Litoria; many of them had been placed in even larger Hyla before. However, in 2016 Duellman and colleagues split Litoria into several genera.[1][2] The systematic and taxonomic conclusions based on Duellman et al.[2] should be treated with caution, because 78.9% of individuals (397/503) used in the concatenated analyses had less than half of the gene sequences available for the 19 genes used. Missing data can be problematic in phylogenetic analyses (e.g.[3][4][5][6]) and lead to erroneous conclusions about systematic relationships. Additionally, there is no mention of checking for base-composition bias amongst taxa (non-stationarity), which can also lead to incorrect tree phylogenies (e.g.[7][8]). The species now in Ranoidea were placed in the genus Dryopsophus. However, the oldest available name for these species is Ranoidea.[1] These changes are not yet widely recognized or accepted,[9] and the AmphibiaWeb continues to recognize Litoria in the older, broad sense[10] The AmphibiaWeb also recognizes Cyclorana,[10] a position that, without additional amendments, renders Ranoidea paraphyletic; it may be treated as a subgenus.[1]

Some controversy also surrounds whether the subfamily Pelodryadinae is part of the family Pelodryadidae, as suggested by Duellman and colleagues[2] and recognized in the Amphibian Species of the World,[1] or part of the family Hylidae, as recognized in the AmphibiaWeb.[10]

Description and ecologyEdit

The pupil is horizontally elliptical, and the palpebral membrane is unpigmented. Many species have tadpoles that develop in mountain streams and have enlarged ventral mouths.[2] However, "Cyclorana" are adapted to standing and often temporary bodies of water.[11]


The following species are recognised in the genus Ranoidea:[1]

Although currently listed as incertae sedis, it is expected that "Ranoidea papua" (Van Kampen, 1909) will also be included in the genus once its range has been properly delimited.


  1. ^ a b c d e f g Frost, Darrel R. (2018). "Ranoidea Tschudi, 1838". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 18 June 2018.
  2. ^ a b c d e Duellman, William E.; Marion, Angela B. & Hedges, S. Blair (19 April 2016). "Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae)". Zootaxa. 4104 (1): 1–109. doi:10.11646/zootaxa.4104.1.1. PMID 27394762.
  3. ^ Simmons, M.P. 2012. Misleading results of likelihood‐based phylogenetic analyses in the presence of missing data. Cladistics 28(2): 208-222. DOI: 10.1111/j.1096-0031.2011.00375.x)
  4. ^ Dunn, K.A., McEachran, J.D., & Honeycutt, R.L. 2003. Molecular phylogenetics of myliobatiform fishes (Chondrichthyes: Myliobatiformes), with comments on the effects of missing data on parsimony and likelihood. Molecular Phylogenetics and Evolution 27(2): 259-270. DOI: 10.1016/S1055-7903(02)00442-6
  5. ^ Kearney, M. 2002. Fragmentary taxa, missing data, and ambiguity: mistaken assumptions and conclusions. Systematic biology 51(2): 369-381. DOI:10.1080/10635150252899824
  6. ^ Xi, Z., Liu, L., & Davis, C.C. 2016. The impact of missing data on species tree estimation. Molecular Biology and Evolution 33(3): 838-860. DOI: 10.1093/molbev/msv266
  7. ^ Jermiin, L.S., Ho, S.Y., Ababneh, F., Robinson, J., & Larkum, A.W. 2004. The biasing effect of compositional heterogeneity on phylogenetic estimates may be underestimated. Systematic biology 53(4): 638-643. DOI: 10.1080/10635150490468648
  8. ^ Song, H., Sheffield, N.C., Cameron, S.L., Miller, K.B., & Whiting, M.F. 2010. When phylogenetic assumptions are violated: base compositional heterogeneity and among‐site rate variation in beetle mitochondrial phylogenomics. Systematic Entomology 35:3, 429-448. DOI: 10.1111/j.1365-3113.2009.00517.x
  9. ^ McDonald, K.R., Rowley, J.J., Richards, S.J., & Frankham, G.J. (2016). A new species of treefrog (Litoria) from Cape York Peninsula, Australia. Zootaxa 4171(1): 153-169. DOI: 10.11646/zootaxa.4171.1.6
  10. ^ a b c "Hylidae". AmphibiaWeb. University of California, Berkeley. 2018. Retrieved 18 June 2018.
  11. ^ Van Buskirk, J. (2009). "Getting in shape: adaptation and phylogenetic inertia in morphology of Australian anuran larvae". Journal of Evolutionary Biology. 22 (6): 1326–1337. doi:10.1111/j.1420-9101.2009.01750.x.