Hyperolius jynx
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hyperoliidae
Genus: Hyperolius
Species:
H. jynx
Binomial name
Hyperolius jynx
(Amiet, 2000)
Rumpi Hills in Cameroon
Rumpi Hills in Cameroon
Alexteroon jynx is only known from the Rumpi Hills in Cameroon
Synonyms[2]
  • Alexteroon jynx Amiet 2000[3]

Hyperolius jynx is a species of frog in the family Hyperoliidae.[2][4] It is endemic to the Rumpi Hills in south-western Cameroon.[1][2][4] The common name smooth egg-guarding frog has been proposed for this species.[2][5]

Description

Hyperolius jynx grow to 23 mm (0.9 in) in snout–vent length. The body is slender while the head is broad with a rounded snout. The eyes are large. The tympanum is distinct. The finger and toe tips are enlarged into rounded discs; the fingers have basal webbing while the toes have complete webbing. Dorsal skin is granular. The dorsum is yellowish to dark green to green-brown with numerous tiny white spots. There is a reddish-brown spot between the eyes and blotches on the dorsum and limbs; there may reddish-brown spots on the eyelids and the sides of the snout. Skin is ventrally finely granular; the pectoral region is white while the posterior part of the belly is translucent turquoise, with the inner organs visible through the skin.[5]

The male advertisement call is a single blunt, metallic "click" that is repeated irregularly.[5]

Habitat and conservation

Hyperolius jynx is known from forests on the eastern slopes of the Rumpi Hills at elevations of 800–1,050 m (2,620–3,440 ft) above sea level. Its favoured streams have well-aerated, flowing (but not torrential) water. Males call from dense vegetation near streams. The eggs are probably laid in small clumps on leaves above streams, into which the tadpoles fall and develop further.[1]

This species is only known from two localities 6 km apart. Severe forest loss caused by smallholder farming activities, logging, and human settlement is taking place in the Rumpi Hills. Because of its small range and ongoing habitat loss, this species is considered "critically endangered".[1]

References

  1. 1 2 3 4 IUCN SSC Amphibian Specialist Group (2018). "Alexteroon jynx". IUCN Red List of Threatened Species. 2018: e.T56088A95747724. doi:10.2305/IUCN.UK.2018-1.RLTS.T56088A95747724.en. Retrieved 15 November 2021.
  2. 1 2 3 4 Frost, Darrel R. (2022). "Hyperolius jynx (Amiet, 2000)". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 12 January 2022.
  3. ↑ Amiet, J. L. (2000). "Les Alexteroon du Cameroun (Amphibia, Anura, Hyperoliidae)". Alytes (in French). 17 (3–4): 125–164.
  4. 1 2 Ernst, Raffael; Kehlmaier, Christian; Baptista, Ninda L.; Pinto, Pedro Vaz; Branquima, Makaya Futuro; Dewynter, Maël; Fouquet, Antoine; Ohler, Annemarie & Schmitz, Andreas (2021). "Filling the gaps: The mitogenomes of Afrotropical egg-guarding frogs based on historical type material and a re-assessment of the nomenclatural status of Alexteroon Perret, 1988 (Hyperoliidae)". Zoologischer Anzeiger. 293: 215–224. doi:10.1016/j.jcz.2021.06.002.
  5. 1 2 3 Channing, Allan & Rödel, Mark-Oliver (2019). Field Guide to the Frogs & other Amphibians of Africa. Cape Town: Struik Nature. pp. 168–169. ISBN 978-1-77584-512-6.
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