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]
Species The following species are recognised in the genus Ptychadena :[ 5]
Ptychadena aequiplicata (Werner, 1898) Ptychadena amharensis (Smith, Noonan, and Colston, 2017) Ptychadena anchietae (Bocage, 1868) Ptychadena ansorgii (Boulenger, 1905) Ptychadena arnei (Perret, 1997) Ptychadena baroensis (Smith, Noonan, and Colston, 2017) Ptychadena beka (Goutte et al, 2021) Ptychadena bibroni (Hallowell, 1845) Ptychadena boettgeri (Pfeffer, 1893) Ptychadena broadleyi Stevens, 1972 Ptychadena bunoderma (Boulenger, 1907) Ptychadena christyi (Boulenger, 1919) Ptychadena chrysogaster Laurent, 1954 Ptychadena cooperi (Parker, 1930) Ptychadena doro (Goutte et al, 2021) Ptychadena delphina (Goutte et al, 2021) Ptychadena erlangeri (Ahl, 1924) Ptychadena gansi Laurent In Gans, Laurent & Pandit, 1965 Ptychadena goweri Smith, Noonan, and Colston, 2017 Ptychadena grandisonae Laurent, 1954 Ptychadena guibei Laurent, 1954 Ptychadena harenna Largen, 1997 Ptychadena hylaea Schmidt and Inger, 1959 Ptychadena ingeri Perret, 1991 Ptychadena keilingi (Monard, 1937) Ptychadena levenorum (Smith, Noonan, and Colston, 2017) Ptychadena longirostris (Peters, 1870) Ptychadena mahnerti Perret, 1996 Ptychadena mapacha Channing, 1993 Ptychadena mascareniensis (Duméril & Bibron, 1841) Ptychadena mossambica (Peters, 1854) Ptychadena mutinondoensis Channing and Willem, 2018 Ptychadena nana (Perret, 1980) Ptychadena neumanni (Ahl, 1924) Ptychadena newtoni (Bocage, 1886) Ptychadena nilotica (Seetzen, 1855) Ptychadena nuerensis Smith, Noonan, and Colston, 2017 Ptychadena obscura (Schmidt & Inger, 1959) Ptychadena oxyrhynchus (Smith, 1849) Ptychadena perplicata Laurent, 1964 Ptychadena perreti Guibé & Lamotte, 1958 Ptychadena porosissima (Steindachner, 1867) Ptychadena pujoli Lamotte & Ohler, 1997 Ptychadena pumilio (Boulenger, 1920) Ptychadena retropunctata (Angel, 1949) Ptychadena robeensis (Goutte et al, 2021) Ptychadena schillukorum (Werner, 1908) Ptychadena stenocephala (Boulenger, 1901) Ptychadena straeleni (Inger, 1968) Ptychadena submascareniensis (Guibé & Lamotte, 1953) Ptychadena subpunctata (Bocage, 1866) Ptychadena superciliaris (Günther, 1858) Ptychadena taenioscelis Laurent, 1954 Ptychadena tellinii (Peracca, 1904) Ptychadena tournieri (Guibé & Lamotte, 1955) Ptychadena trinodis (Boettger, 1881) Ptychadena upembae (Schmidt & Inger, 1959) Ptychadena uzungwensis (Loveridge, 1932) Ptychadena wadei Largen, 2000
References ^ a b 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 . ^ "Ptychadena Boulenger, 1917" . Integrated Taxonomic Information System .^ 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 . PMC 7892535 . PMID 33628080 . ^ 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 . S2CID 53369792 . ^ Cite error: The named reference polar was invoked but never defined (see the help page ).