1994 Philakorea Frogs and Toads Lesotho First Day Cover
AQUATIC RIVER FROG (Amietia vertebralis, formerly Rana vertebralis), also called the ice frog or large-mouthed frog. This species of frog is found at high altitudes in South Africa, Lesotho, and Natal. This frog lives in cold streams and rivers. Adults are able to breathe efficiently through their skin and can remain submerged for several days at a time. Both adult frogs and tadpoles have been observed living under ice during the winter and this species is intolerant of high temperatures.
Breeding season runs from mid-September to February. Eggs are attached to submerged vegetation in shallow, slow-flowing streams or pools with sandy or stony substrates is. The tadpole has a wide, flat body, a heavy tail, and large sucker-like mouth for obtaining a firm grip on smooth rocks allowing this species to live in fast-moving water.
Adult frogs mainly feed on invertebrates, including gastropods and freshwater crabs, but also eat other prey such as smaller frogs. Tadpoles eat infusoria and detritus.
COMMON RIVER FROG (Amietia angolensis, formerly Rana angolensis), is fairly common in eastern and southern Africa. This frog is found in Angola, Botswana, Burundi, Congo (DRC), Eritrea, Ethiopia, Kenya, Lesotho, Malawi, Mozambique, Rwanda, South Africa, Swaziland, Tanzania, Uganda, Zambia, and Zimbabwe. The common river frog prefers shallow water, including irrigation ditches, ponds, streams and rivers, often where water lilies, reeds or other aquatic plants are growing in abundance. Adult frogs spend most of the day floating within the vegetation or basking on rocks above the water. This African frog species breeds year around in still water and along the edges of water-filled ditches, pools, dams, streams and slow-flowing rivers. Tadpoles grow for nearly two years, reaching about 4 inches in length before metamorphosing into adult river frogs.
BUBBLING KASSINA (Kassina senegalensis), also called the Senegal running frog, is an African species of frog belonging to the Hyperoliidae family (African Reed Frogs). This frog is widely distribution throughout Africa, and is native to the countries of Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Congo (DRC), Ethiopia, Gambia, Ghana, Guinea, Ivory Coast, Kenya, Lesotho, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Rwanda, Senegal, Sierra Leone, Somalia, South Africa, South Sudan, Sudan, Swaziland, Tanzania, Uganda, Zambia, and Zimbabwe. This African frog species lives in a number of different habitats ranging from subtropical or tropical moist lowland forests to dry savannas to swamps and marshes to pastureland and rural gardens. The bubbling kassina feeds on a variety of arthropods, including termites, ants, flies, caterpillars and spiders and has been known to eat small reptiles and amphibians.
Breeding season occurs during the rainy season from spring to late summer. The male frog’s call to the female sounds similar to bubbles rising up from the water, thus its name the bubbling kassina. This frog breeds in both temporary and permanent pools of water, but favors large, well-vegetated pools of water. Eggs are attached to the submerged vegetation and hatch into tadpoles within a week. The tadpole of this species of frog develops a rather high tail fin. The tadpole will complete its development within two to three months, becoming a small frog. During the dry season, frog can be found under logs and rocks and inside burrows of other animals.
AFRICAN GUTTURAL TOAD (Amietophrynus gutturalis formerly Bufeo gutturalis ) is a common species of toad found in the countries of Angola, Botswana, Congo (DRC), Kenya, Lesotho, Malawi, Mauritius, Mozambique, Namibia, Réunion, Somalia, South Africa, Ethiopia, Swaziland, Tanzania, Zambia, and Zimbabwe.
The African guttural toad is an highly adaptable species living in a variety of habitats including savannahs, grassland, agricultural land and near human settlement. The African guttural toad is nocturnal, hiding under rock or logs, or within a hole dug into the ground, during the day and feeding at night. This African toad feeds on a variety of invertebrates, including worms, insects, centipedes, scorpions and spiders and has also been known to eat small reptiles and amphibians.
The African guttural toad is part of the diet of a number of African snakes, including the Black-necked Spitting Cobra (Naja nigricollis), red-lipped snake (Crotaphopeltis hotamboeia), Common Night Adder (Causus rhombeatus), Angola Green Snake (Philothamnus angolensis). When attacked by predators guttural toad will exude a toxin contains epinephrine from its parotid glands. Although this can be fatal to small mammals, the African civet (Viverra civetta) also preys on this toad. Generally only the ventral parts are eaten to avoid the toxic parotid glands on the toad’s back.
This African toad breeds in permanent waterholes, such as streams and garden ponds. Eggs are laid in long strings of over ten thousand eggs. The tadpoles emerge after several days and metamorphosis into small toads in about two months.
Burundi 2011 Stamps – six different frogs
Burundi 2011 Stamps – Four different frogs
Four species of frog found in the subtropical or tropical moist montane forests, grassland and swamps of Burundi, Congo (DRC), Rwanda, and Uganda. KISENYI FOREST TREE FROG (Leptopelis kivuensis), Hyperolius castaneus and Hyperolius discodactylus are three frog species in the Hyperoliidae family. Phrynobatrachus versicolor is a species of frog in the Petropedetidae family.
AMERICAN BULLFROG (Lithobates catesbeianus formerly Rana catesbeiana) on 1974 North Korean Stamp.
Australia 1999 self adhesive postage stamp booklet – FROGS
Chad Tropical Frogs Souvenir Sheet
WALLACE’S FLYING FROG (Rhacophorus nigropalmatus) is found in Southeast Asia and using its webbing this frog can parachute to the forest floor from high in the trees. The ARUM FROG (Hyperolius horstockii) is a member of the Hyperoliidae family and is endemic to South Africa.
The LESSER BANANA FROG (Afrixalus stuhlmanni brachycnemis) is a subspecies of frog in the Hyperoliidae family found in Malawi, Mozambique, and Tanzania.
The MARBLED SNOUT-BURROWER (Hemisus marmoratus) is a species of frog in the Hemisotidae family found in Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Congo (DRC), Ivory Coast, Eritrea, Ethiopia, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Malawi, Mozambique, Namibia, Nigeria, Senegal, Somalia, South Africa, Sudan, Swaziland, Tanzania, Uganda, Zambia, and Zimbabwe.
Mozambique 2011 Michel catalog #4307 Stamp Dendrobates is a genus of poison dart frogs native to Central and South America.
The BLUE POISON ARROW FROG (Dentrobates tinctorius) “azureus” is a poison arrow frog found in the forests of southern Suriname and northern Brazil.
The STRAWBERRY POISON DART FROG (Oophaga pumilio, formerly Dendrobates pumilio) is a species of small poison arrow frog found in the forests of eastern central Nicaragua, Costa Rica and northwestern Panama.
The GOLDEN POISON FROG(Phyllobates terribilis) is endemic to the rainforests of the Pacific coast of Colombia.