Herpetology of Ethiopia and Eritrea


Ranidae, Rafinesque 1814



Pelophylax demarchii (Scortecci, 1929)


Short description:
This species is known only from the unspecified type locality in Eritrea. It is known only from two old specimens, one of which survives. It is possibly closely related to (or even synonymous with) Rana ridibunda. It is also possible that the species is not even native to Eritrea (R. ridibunda having been introduced widely elsewhere in the world), and the specimens were perhaps not even collected in that country, but the amphibian fauna of Eritrea is too poorly known for these issues to be resolved at present. Given the current state of knowledge, it is not possible to map this species' range.

Distribution:
Eritrea. Locality is unfortunately not known.

Note:
Typical aquatic "green" marsh frog. Way of life unknown.

Description original:
Scortecci, 1929, Atti Soc. Ital. Sci. Nat. Mus. Civ. Stor. Nat. Milano, 68: 177.

Describet as Rana demarchii





Amnirana galamensis (Dumeril and Bibron, 1841)

Short description:
A large, plump ranid with comparatively short hind legs. The largest individual, male, measured 78 mm, the largest female reached 62 mm. But the males are usually smaller than females. Tympanum is clearly visible,reaching about 0.8 of the eye diameter . Distinct flat, large dorsolateral ridges running from the posterior eye border to the end of the body. Skin with large flat warts on the flank and posterior back regions, but smooth or finely granulated otherwise. The foot, including the longest toe, measures 0.7 of the SVL. Toes without discs; toe tips never larger than the subarticular tubercles. The basic body color varies from drab pale brown to dark brown. The dorsum appears comparatively uniform, showing just several paler yellow spots in the anal region and on the thighs, producing, a mottled pattern. The iris is golden to orange. A pale yellow to pale orange stripe runs from the nostril across the eyelid and along the dorsolateral ridge to the body end. The iris gold or orange. Upper lips white. The bally whitish or light gray.

Distribution:
This species occurs from Senegal to western Ethiopia, Eritrea, Uganda, Kenya and southern Somalia. South to southern Mozambique. It is assumed that occur in Guinea, Togo, Chad, Sudan, Liberia.

Behavior:
This species is supposed to demand rather open habitats, and its association with humid places is regularly highlighted. During the rainy period, it is usually found in savanna ponds, rarely in gallery forests. The eggs are deposited as a single layer comprising 1500–4000 eggs floating at the surface. The tadpoles hatch within two days, measuring approx. 6 mm and bearing exterior gills. They feed different arthropods as grasshopers, beetles, ...etc.

Description original:
Duméril, A. M. C., and G. Bibron . 1841. Erpétologie Genérale ou Histoire Naturelle Complète des Reptiles. Volume 8. Paris: Librarie Enclyclopedique de Roret.

Described as Rana galamensis

Common english name: Marble-legged Frog























































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