Pipidae

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Pipidae
Temporal range: 145–0 Ma
Lower Cretaceous to recent
Amplexus of ADF.jpg
African dwarf frog
Scientific classification
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Pipidae

Gray, 1825
PIPIDAE range.png
Distribution of Pipidae (in black).

The Pipidae are a family of primitive, tongueless frogs. The 41 species in the family Pipidae are found in tropical South America (genus Pipa) and sub-Saharan Africa (the three other genera).

These frogs are exclusively aquatic and have numerous morphological modifications befitting their habitat. For example, the feet are completely webbed, the body is flattened, and a lateral line system is present.[1] In addition, pipids possess highly modified ears for producing and receiving sound underwater. They lack a tongue or vocal cords, instead having bony rods in the larynx that help produce sound. They range from 4 to 19 cm (1.6 to 7.5 in) in body length.[2]

The fossil record for pipids is relatively good, with 12 extinct species known. Six of these are placed in the extant genus Xenopus, the remainder in extinct genera. These fossils are known from Africa, South America, and the Middle East back to the Lower Cretaceous.[2]

Genera[edit]

Family Pipidae Gray, 1825 [3]

  • Hymenochirus Boulenger, 1896 - dwarf clawed frogs (4 species)
  • Pipa Laurenti, 1768 - Surinam toads (7 species)
  • Pseudhymenochirus Chabanaud, 1920- Merlin's dwarf gray frog or Merlin's clawed frog (1 species)
  • Xenopus Wagler, 1827 - clawed frogs (29 species) [4]
    • Subgenus Silurana Wagler, 1827 - common clawed frogs
    • Subgenus Xenopus Gray, 1864 - tropical clawed frogs

References[edit]

  1. ^ "AmphibiaWeb: Pipidae". Berkeley, California: AmphibiaWeb. Retrieved 2009-10-25.
  2. ^ a b Zweifel, Richard G. (1998). Cogger, H.G.; Zweifel, R.G., eds. Encyclopedia of Reptiles and Amphibians. San Diego: Academic Press. pp. 86–87. ISBN 0-12-178560-2.
  3. ^ Pipidae at the Amphibian Species of the World 6.0
  4. ^ Evans et al. (2015), Genetics, morphology, advertisement calls, and historical records distinguish six new polyploid species of African Clawed Frog(Xenopus, Pipidae) from West and Central Africa., PLoS One 10(12): e0142823: 1–51.

External links[edit]

Data related to Pipidae at Wikispecies Media related to Pipidae at Wikimedia Commons