Nematodes from river drift and surface drinking water supplies in southern Ontario J. B. MottA. D. Harrison OriginalPaper Pages: 27 - 38
Halalaimus algeriensis n. sp. (Nematoda) from the Sahara A. CoomansL. J. Jacobs OriginalPaper Pages: 39 - 44
Effect of temperature on embryonic development and reproduction of the freshwater snailLymnaea luteola Troshel (Gastropoda), a vector of schistosomiasis B. D. ParasharA. KumarK. M. Rao OriginalPaper Pages: 45 - 49
Effects of salinity, pH, and temperature on the spores and sporelings ofDictyopteris australis, an alginophyte S. PothenD. P. SubbarajuM. S. Murthy OriginalPaper Pages: 51 - 54
On the biology of an estuarine population of the clupeidPellonula afzeliusi (Johnels) in Lagos Lagoon, Nigeria K. IkusemijuA. A. OkiM. Graham-Douglas OriginalPaper Pages: 55 - 59
Cyclomorphosis inEubosmina longispina in a small North American pond Robert W. Black IINelson G. Hairston Jr. OriginalPaper Pages: 61 - 67
Aquatic Hyphomycetes of a mountain stream in Valsesia (Piemonte) G. Del FrateG. Caretta OriginalPaper Pages: 69 - 71
Invertebrates and urban runoff in a small northern stream, Edmonton, Alberta, Canada Eric R. WhitingHugh F. Clifford OriginalPaper Pages: 73 - 80