No abstract available.

No abstract available.

The East African sable antelope (Hippotragus niger roosevelti) has declined considerably in its former range in the last 30 years. A remnant population exists in the Shimba Hills National Reserve on the southern coast of Kenya. Anecdotal records suggest some animals have existed outside this area over the past 20 years. This article records a single sighting of a mature male sable antelope in Tsavo East National Park.

Censuses of De Brazza's monkey Cercopithecus neglectus were conducted in the Tororo District of eastern Uganda and in Trans-Nzoia and West Pokot Districts of western Kenya to determine the status of this species and its habitat. The species had not been reported in eastern Uganda since 1958, and a previous census in western Kenya had reported it under threat. In Uganda 13 sites were surveyed, and 124 individuals were counted in 20 groups ranging in size from two to 22 individuals (x̄ = 5.8). In the 11 sites surveyed in Kenya, only 68 individuals were counted in 19 groups ranging in size from two to six individuals (x̄ = 3.56). In all these districts, De-Brazza's monkeys are threatened with local extinction due to pressures from deforestation and hunting.

An immature male of the isolated population of the small-sized Pemba African Goshawk Accipiter tachiro pembaensis is described: it has a speckled ventral side as have its closest relatives on the mainland, but its thighs are washed rufous, a characteristic announcing the brightly coloured adult plumage. This finding is interesting because the immature plumage is considered as a feature useful for the study of evolution in Accipiter.

No abstract available.

The micromorphology of the seed trichomes in Hibiscus section Furcaria in Tropical East Africa was surveyed. The structure of the trichomes was found to be unique for each species examined, where such trichomes are present. Seed trichomes of specimens of H. altissimus Hornby from the Kenya and Tanzania coasts were found not to match those of the type for this species. It is considered that this is indicative of subspecific differentiation.