the back of the thighs is irregular with no discernable pattern. Similar species This species is smaller than most other Ptychadena species. It is similar to the Sharp-nosed Grass Frog (P. oxyrhynchus). It is less conspicuous than the Plain Grass Frog (P. anchietae) and hides by day, calling from concealed positions. Previously considered a race of the Mascarene Grass Frog (Rana mascarenienis mossambica Loveridge); the length from the heel to the toes in P. mascareniensis is greater than the length of the tibia. The Dwarf Grass Frog (P. taenioscelis) is smaller (less than 35 mm), with stripes down the backside of the thighs. Distribution It is found in South Africa from northern Zululand through the Lowveld and Kruger National Park northwards to Botswana, Eswatini, Kenya, Malawi, Mozambique, Namibia, Tanzania, Zambia, Zimbabwe, and possibly Angola. Best viewing: Kruger-Lowveld (South Africa), Okavango (Botswana), Tshaneni (Eswatini). Call The call of these frog is a series of harsh nasal kwe-kwe or wah-wah-wah clucks, repeated at the rate of two per second, much like the quacking of the Egyptian Goose. Males call from concealed positions in grass tussocks at the edge of water on shores of marshes and pans or even several metres away from water. Until vegetation establishes itself after winter, males may call along the water's edge in completely exposed positions. Calling peakings after dark till about midnight. Habitat Its natural habitats is flooded grass and rush around intermittent (pans) and permanent freshwater marshes (vleis), ponds or streams in a variety of bushveld vegetation types at altitudes of 200 to 1 200 m in dry savanna, thicket and subtropical or tropical dry and seasonally wet or flooded lowland grassland, but also moist savanna, subtropical or tropical dry forest, subtropical or tropical dry and moist shrubland, swamps, intermittent freshwater lakes, arable land, pastureland and water storage areas. Habits When the pools in its preferred habitats dry up, the frogs often seek refuge in deep cracks and crevices in the underlying mud that is busy drying. Here they often spend the dry winter months, and become active after the first spring rains. When disturbed, it jumps away from the water to vegetation, crawls beneath it and is concealed. Reproduction In the Kruger National Park 315 eggs were collected from a single female. Each egg is 1,2 mm in diameter and surrounded by a transparent jelly about 3 mm in diameter. The eggs sink to the