Acanthixalus spinosus
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| Acanthixalus spinosus | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Hyperoliidae |
| Genus: | Acanthixalus |
| Species: | A. spinosus |
| Binomial name | |
| Acanthixalus spinosus | |
 | |
| Synonyms[2] | |
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Acanthixalus spinosus, commonly known as the African wart frog,[2] is a species of frog in the family Hyperoliidae, the sedge and bush frogs. It is native to Africa, where it can be found from south-eastern Nigeria to Gabon and the Democratic Republic of the Congo.[1][2][3]
Males measure 30–38 mm (1.2–1.5 in) and females 32–36 mm (1.3–1.4 in) in snout–vent length.[4] The dorsum is warty, black or brownish to olive in color, and bears an hourglass pattern consisting of very irregular transverse bands on dorsum and limbs. Males have no vocal sac or vocal sac openings and are believed to be mute. Males also have strong spines on the tarsus, and they have larger digital discs than females.[3]
The tadpoles grow to 60 mm (2.4 in) in total length. Newly metamorphosed juveniles are brightly colored: they are dorsally orange, with the top of the head and bars across the middle of the back and in the lumbar region deep maroon.[3]