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Description

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A small (Males 20–23 mm, females 23 mm) Afrixalus from south-western Ethiopia where it is found at the edge of tropical deciduous forests at an altitude of 1750–1800 m. Dorsum green, rarely brownish, with broad dark brown lateral stripes and usually a trace of dorsolateral dark lines.The males have a well-developed gular pouch with a small gland. Large dark asperities often situated on a pale spot are concentrated on the posterior region of the back and upper surface of the tibia, and smaller and more scattered spines may extend forward onto the upper eyelid and snout. Large asperities are found at the base of the thigh, smaller ones on the chin, gular flap and sometimes on the chest and abdomen. The females have a few large but colourless asperities on the snout and upper eyelid. Mature males have a concentration of pale glandules on the inner surface of the forearm, extending onto the upper surfaces of the first, second and occasionally third fingers. Pectoral glands absent. Voice. – The voice consists of an initial creak followed by a small number of metallic clicks, emitted at a rate of 7–8 per second and with an indistinct frequency-intensity maximum of 3000–3500 cps.This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira (http://www.chimaira.de/) publishers, Frankfurt am Main.
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Distribution and Habitat

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Occurs in south-western Ethiopia where it is found at the edge of tropical deciduous forests at an altitude of 1750–1800 m.
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Afrixalus clarkei

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Afrixalus clarkei is a species of frog in the family Hyperoliidae.[1][3][4] It is endemic to southwestern Ethiopia and has been recorded from near Chira, Jimma, Bonga, and Bodare.[3][5] The specific name clarkei honours Mr and Mrs R. O. S. Clarke (hence emendation to plural clarkeorum,[6] but such change is nevertheless considered unjustified under the International Code of Zoological Nomenclature[7]), who are acknowledged for their help and hospitality.[2][6] Common name Clarke's banana frog has been coined for this species.[1][3][8]

Description

Adult males measure 20–23 mm (0.8–0.9 in)[2][4] and adult females 23–24 mm (0.9–0.9 in) in snout–vent length.[2][5] The head is broad with short snout. The tympanum ranges from completely hidden to somewhat noticeable. The fingers are unwebbed or have some webbing between the fingers III and IV. The toes are moderately webbed. Dorsal skin is smooth, but chest and abdomen may be rather coarsely granular. The dorsum is yellow-green to bright green, sometimes rarely olive to dark brown, with some scattered small white flecks and larger dark brown spots. There is a pair of dorsolateral lines or rows of dark brown spots, and broad brown lateral stripe running from the tip of the snout over the eye and reaching almost the groin. Males have yellow gular flap.[2]

The male advertisement call consists of an initial creak, followed by a small number of metallic clicks.[2][4]

Habitat and conservation

Afrixalus clarkei is found in tropical deciduous forests and forest edges as well as in some moderately modified secondary habitats such as coffee plantations[1] at elevations of 820–2,030 m (2,690–6,660 ft) above sea level.[5] It has recently been recorded also in marshes and riverine floodplains in open disturbed landscapes.[5] Afrixalus clarkei breeds in marshy pools with emergent vegetation. It is threatened by habitat loss caused by selective logging and encroachment of agriculture and human settlements. It is present in the Kafa Biosphere Reserve.[1]

References

  1. ^ a b c d e IUCN SSC Amphibian Specialist Group (2020). "Afrixalus clarkei". IUCN Red List of Threatened Species. 2020: e.T56057A175770500. doi:10.2305/IUCN.UK.2020-2.RLTS.T56057A175770500.en. Retrieved 14 November 2021.
  2. ^ a b c d e f Largen, Malcolm J. (1974). "The status of the genus Afrixalus (Amphibia, Anura, Hyperoliidae) in Ethiopia, including descriptions of two new species". Monitore Zoologico Italiano. Nuova Serie, Supplemento. 5: 111–127. doi:10.1080/03749444.1974.10736796.
  3. ^ a b c d Frost, Darrel R. (2018). "Afrixalus clarkei Largen, 1974". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 24 September 2018.
  4. ^ a b c "Afrixalus clarkei". AmphibiaWeb. University of California, Berkeley. 2008. Retrieved 24 September 2018.
  5. ^ a b c d Mertens, Jan; Jocque, Merlijn; Geeraert, Lore & De Beenhouwer, Matthias (2016). "Newly discovered populations of the Ethiopian endemic and endangered Afrixalus clarkei Largen, implications for conservation". ZooKeys (565): 141–146. doi:10.3897/zookeys.565.7114. PMC 4820099. PMID 27081339.
  6. ^ a b Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. p. 43. ISBN 978-1-907807-42-8.
  7. ^ Dubois, Alain (2007). "Genitives of species and subspecies nomina derived from personal names should not be emended". Zootaxa. 1550 (1): 49–68. doi:10.11646/zootaxa.1550.1.2.
  8. ^ Afrixalus clarkei media from ARKive
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Afrixalus clarkei: Brief Summary

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Afrixalus clarkei is a species of frog in the family Hyperoliidae. It is endemic to southwestern Ethiopia and has been recorded from near Chira, Jimma, Bonga, and Bodare. The specific name clarkei honours Mr and Mrs R. O. S. Clarke (hence emendation to plural clarkeorum, but such change is nevertheless considered unjustified under the International Code of Zoological Nomenclature), who are acknowledged for their help and hospitality. Common name Clarke's banana frog has been coined for this species.

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