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Ptychadena mascareniensis.jpg
Ptychadena mascareniensis
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ptychadenidae
Genus: Ptychadena
Boulenger, 1917
Type species
Rana mascareniensis
Duméril and Bibron, 1841

Ptychadena is a genus of frogs in the grassland frog family, Ptychadenidae.[1][2] They are distributed in Sub-Saharan Africa, as well as nilotic Egypt. The common names of this genus are ridged frogs and grass frogs.[1] This type of family have many different characteristics such as the species, Ptychadena neumanni who have long hindlimbs and a large ear drum compared to the Ptychadena erlangeri, for example.[3] They also have a unique bone structure which is a fusion between the presacral vertebrae and sacrum.[4]


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


  1. ^ a b c Frost, Darrel R. (2014). "Ptychadena Boulenger, 1917". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 7 February 2014.
  2. ^ "Ptychadena Boulenger, 1917". Integrated Taxonomic Information System.
  3. ^ Goutte, Sandra; Reyes-Velasco, Jacobo; Freilich, Xenia; Kassie, Abeje; Boissinot, Stephane (2 November 2021). "Taxonomic revision of grass frogs (Ptychadenidae, Ptychadena) endemic to the Ethiopian highlands". ZooKeys. 1016: 77–141. doi:10.3897/zookeys.1016.59699. ISSN 1313-2970.
  4. ^ Blackburn, David C.; Roberts, Eric M.; Stevens, Nancy J. (4 March 2015). "The earliest record of the endemic African frog family Ptychadenidae from the Oligocene Nsungwe Formation of Tanzania". Journal of Vertebrate Paleontology. 35 (2): e907174. doi:10.1080/02724634.2014.907174. ISSN 0272-4634.