Information on Funisciurus congicus was obtained during eight days spent in the field at Otjitambi and from museum records. Information on distribution was obtained from specimens in the Windhoek and Transvaal Museums, as well as from various other sources.
The ground squirrel possesses very efficient kidney function which is reflected in a high urine:pIasma concentration ratio, particularly during the summer months, and one of the highest relative medullary thicknesses recorded in mammals. The diet of these animals changes markedly from the wet to the dry season, as does the incidence of internal parasites. The flared, erect tail is used inter alia as a unique shading device as part of this species' compIex thermoregulatory behavioural repertoire.
Counts of waders (Charadrii) and other birds are given for a 300 km section of the coast-line of the Namib Coast, South West Africa, centred on Walvis Bay. A total of 170 000 birds (excluding cormorants) was counted in the summers 1976/77 and 1977/78. Waders totalled 83 069 of which 88,5 % were Palaearctic migrants. The most abundant wader species were sanderling Calidris alba and curlew sandpiper C. ferruginea. Terns totalled 37 000 and flamingoes 38 000.
Relict fine-grained sediments have been preserved within erosion gullies (gramadullas) of the middle Kuiseb river valley in the Namib desert. These deposits are divisible into a conspicuous higher terrace and a concealed, eroded low level type. Discontinuous remnants, commonly yellowish-grey silts containing subsidiary sands, have been traced from Gobabeb 40,5 km upstream. The diverse mineralogy of the deposits reflects their metamorphic rock source. Bedding is distinct but sand and silt units are irregular in form. Sedimentary structures include cross-stratification and sun cracks.