Biology:Alexteroon obstetricans

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Short description: Species of amphibian


Alexteroon obstetricans
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Hyperoliidae
Genus: Hyperolius
Species:
A. obstetricans
Binomial name
Alexteroon obstetricans
(Ahl, 1931)
Synonyms[2]

Hyperolius obstetricans Ahl, 1931

Alexteroon obstetricans is a species of frog in the family Hyperoliidae.[1][2][3][4] It is known from southern and southwestern Cameroon, Equatorial Guinea, and Gabon, and it is likely to occur in adjacent Republic of the Congo.[1][2] Common name frilled egg-guarding frog has been proposed for it.[2][3]

Description

Alexteroon obstetricans grow to 31 mm (1.2 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 large, rounded discs; the fingers have medium webbing while the toes have almost complete webbing. Dorsal skin is granular. The dorsum is blueish green-grey, grass- or olive-green to brownish green with many minute white dots and possibly with some darker markings on the head and shoulders; the region from the eyelids to the nostrils is brownish. Skin is ventrally finely granular. The anterior part of the throat is white while the posterior part is dark blue in males and turqoise in females. The belly is translucent turquoise to black, with the inner organs visible through the skin.[3]

The male advertisement call is a slow, metallic "tuc" that is repeated 5–6 times.[3]

Habitat and conservation

Alexteroon obstetricans occurs in forests at elevations below 800 m (2,600 ft) in association with narrow streams under continuous canopy. Its favoured streams have well-aerated, flowing, but not torrential water. The eggs are laid in small clumps on leaves above streams, into which the tadpoles fall and develop further. It is a common but patchily distributed species that is often absent from apparently suitable habitat. It is probably threatened by loss of closed-canopy forests. It is present in the Moukalaba-Doudou National Park (Gabon) and probably in some other protected areas too.[1]

References

  1. 1.0 1.1 1.2 1.3 IUCN SSC Amphibian Specialist Group (2013). "Alexteroon obstetricans". IUCN Red List of Threatened Species 2013: e.T56089A18371179. doi:10.2305/IUCN.UK.2013-2.RLTS.T56089A18371179.en. https://www.iucnredlist.org/species/56089/18371179. Retrieved 10 March 2021. 
  2. 2.0 2.1 2.2 2.3 Frost, Darrel R. (2021). "Alexteroon obstetricans (Ahl, 1931)". Amphibian Species of the World: an Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. https://amphibiansoftheworld.amnh.org/Amphibia/Anura/Hyperoliidae/Hyperoliinae/Alexteroon/Alexteroon-obstetricans. 
  3. 3.0 3.1 3.2 3.3 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. 
  4. "Alexteroon obstetricans". AmphibiaWeb. University of California, Berkeley. 2021. https://amphibiaweb.org/species/473. Retrieved 10 March 2021. 

Wikidata ☰ Q1942973 entry