Cycloramphus izecksohni

Cycloramphus izecksohni is a species of frog in the family Cycloramphidae. It is endemic to southern Brazil and occurs in the Serra do Mar in the states of Santa Catarina, Paraná, and São Paulo.[3] Prior to its description in 1983, it was confused with Cycloramphus duseni.[2] Common name Izecksohn's button frog has been coined for this species.[3][4]

Cycloramphus izecksohni

Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Cycloramphidae
Genus: Cycloramphus
Species:
C. izecksohni
Binomial name
Cycloramphus izecksohni
Heyer, 1983[2]

Etymology

The specific name izecksohni honours Eugênio Izecksohn, a Brazilian herpetologist.[2][4]

Description

Adult males measure 29–38 mm (1.1–1.5 in) and adult females 31–44 mm (1.2–1.7 in) in snout–vent length.[2][5] The snout is rounded. The tympanum is hidden. The toes have moderate webbing. The dorsum is brown without distinctive colors. The texture is dorsal shagreen with small to large warts.[2]

The male advertisement call consists of individual notes emitted sporadically. The call is short, lasting about 0.03 seconds. The maximum energy is at 2200–2400 Hz.[5]

Habitat and conservation

Cycloramphus izecksohniast-flowing streams in primary and old secondary forests at elevations up to 1,000 m (3,300 ft) above sea level. The tadpole develop in the splash zone of waterfalls, out of the water.[1]

This species is locally common in Santa Catarina. Recent data from São Paulo are lacking and records from Paraná require confirmation. It is threatened by habitat loss caused by tourism, dam construction and human settlement. It occurs in some protected areas, but these lack adequate protection.[1]

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References
  1. Garcia, P. & Verdade, V. (2004). "Cycloramphus izecksohni". IUCN Red List of Threatened Species. 2004: e.T56371A11453723. doi:10.2305/IUCN.UK.2004.RLTS.T56371A11453723.en. Retrieved 20 December 2017.
  2. Heyer, W. Ronald (1983). "Notes on the frog genus Cycloramphus (Amphibia: Leptodactylidae), with descriptions of two new species". Proceedings of the Biological Society of Washington. 96: 548–559.
  3. Frost, Darrel R. (2018). "Cycloramphus izecksohni Heyer, 1983". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 1 May 2018.
  4. Beolens, Bo; Watkins, Michael; Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 169. ISBN 978-1-907807-42-8.
  5. Heyer, W. Ronald (1983). "Variation and systematics of frogs of the genus Cycloramphus (Amphibia, Leptodactylidae)". Arquivos de Zoologia. 30 (4): 235–339. doi:10.11606/issn.2176-7793.v30i4p235-339. Cycloramphus izecksohni appears as Cycloramphus duseni, as stated by Heyer (1983), Proceedings of the Biological Society of Washington 96: 552.
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