Babesia bovis, B. bigemina, cattle, effect of tick control on infection rates and on enzootic stability, survey of farms from 6 geographical regions, control of ticks is not justified economically as means of minimizing risks of babesiosis outbreaks unless regular dipping is necessary to limit damage done by ticks per se

Babesia bigemina infection in population of Boophilus decoloratus cannot be eliminated in short term by treating cattle prophylactically with imidocarb dipropionate, Babesia retained by ticks for at least complete generation

Schistosoma edwardiense recovered from hippopotamus, measurements of adults and eggs, species validity, determined to be hippopotamus-specific based on examination of game droppings for schistosome eggs and on lack of experimental establishment in rodents, Biomphalaria salinarum believed to be intermediate host based on evidence from experimental exposure; S. hippopotami suggested to be synonymous with S. mansoni

Rhipicephalus zambeziensis n. sp., all stages of life cycle compared with life cycle of R. appendiculatus, redescription of R. appendiculatus, attempts to cross breed these 2 species in laboratory were unsuccessful thus validating their taxonomic separation, the 2 species can live sympatrically

Ixodes (Afrixodes) neitzi n. sp. is described from females and males collected from the mountain reedbuck (Redunca fulvorufula) at Loskop Dam Nature Reserve, Transvaal, Republic of South Africa. Information is provided to distinguish this new species from other closely related Ixodes species that occur in the Ethiopian region. Its predilection sites are noted and the area in which it occurs is described briefly.