Callimedusa

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Callimedusa
Callimedusa tomopterna

Callimedusa tomopterna

Systematics
without rank: Amphibians (Lissamphibia)
Order : Frog (anura)
Subordination : Neobatrachia
without rank: Tree frogs (arboranae)
Family : Griffin frogs (Phyllomedusidae)
Genre : Callimedusa
Scientific name
Callimedusa
Duellman , Marion & Hedges , 2016

Callimedusa is a genus of griffin frogs (Phyllomedusidae) and includes six species that occur in the cloud and rainforests of South America from the eastern slope of the Andes to the upper Amazon basin .

description

The species of the genus Callimedusa cannot contrast their first toes with the rest like most other griffin frogs. As a result, they cannot climb up thin plant parts as well as this one. The first toes are slightly longer than the second.

Their body shape looks unusually angular for frogs . The genus includes small to medium-sized species. The smallest species is Callimedusa atelopoides . It reaches a head-torso length of up to 44 millimeters. The largest species, Callimedusa tomopterna , becomes 62 millimeters long.

distribution

The four species Callimedusa baltea , Callimedusa duellmani , Callimedusa ecuatoriana and Callimedusa perinesos , which look very similar to one another and are also closely related, live in the cloud forests on the slopes of the Andes that face the Amazon basin. Their distribution areas in Ecuador and Peru do not overlap. Geographical isolation is believed to be a major contributor to speciation.

They are contrasted by the purely terrestrial species Callimedusa atelopoides , which occurs in the upper Amazon basin. This species has certainly been found in Peru in the Loreto and Madre de Dios regions as well as in Brazil in the states of Acre and Amazonas and in Bolivia in the Beni department . Since the distribution area is close to the borders of Colombia and Ecuador, it is assumed that Callimedusa atelopoides could also be found in the corresponding habitats of the border area.

The sister taxon of all other Callimedusa species is the colorful species Callimedusa tomopterna . It is widespread in the Brazilian Amazon basin, as far as Colombia, Ecuador, Peru, and Bolivia. Their occurrence extends in the north to the Guyanese regions from south-eastern Venezuela to French Guiana . Despite the large distribution area, the occurrence hardly overlaps with that of the species native to the Andes.

Systematics

The genus was separated from the genus of the maci frog ( Phyllomedusa ) in 2016 after molecular biological studies . The studies confirmed the phylogenetic relationship of the six species in the group. The name of the new genus was made up of the Greek word kalos ( beautiful ) and the name of the mythological figure Medusa . Medusa is often used by herpetologists to name genera and species.

species

The genus currently includes six species:

As of June 3, 2017

Individual evidence

  1. ↑ a b c William E. Duellman, Angela B. Marion & S. Blair Hedges: Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae). Zootaxa 4104, 1, pp. 1–109, April 2016.
  2. ↑ Callimedusa atelopoides .  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. In: Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, New York, USA, 1998–2017 @1@ 2Template: Dead Link / research.amnh.org  
  3. ↑ Callimedusa tomopterna .  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. In: Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, New York, USA, 1998–2017 @1@ 2Template: Dead Link / research.amnh.org  

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