1. Aquatic entomofauna of a Dead Sea oasis

   • David G. Furth

   OriginalPaper Pages: 3 - 25

2. Nematodes from river drift and surface drinking water supplies in southern Ontario

   • J. B. Mott
   • A. D. Harrison

   OriginalPaper Pages: 27 - 38

3. Halalaimus algeriensis n. sp. (Nematoda) from the Sahara

   • A. Coomans
   • L. J. Jacobs

   OriginalPaper Pages: 39 - 44

4. Effect of temperature on embryonic development and reproduction of the freshwater snailLymnaea luteola Troshel (Gastropoda), a vector of schistosomiasis

   • B. D. Parashar
   • A. Kumar
   • K. M. Rao

   OriginalPaper Pages: 45 - 49

5. Effects of salinity, pH, and temperature on the spores and sporelings ofDictyopteris australis, an alginophyte

   • S. Pothen
   • D. P. Subbaraju
   • M. S. Murthy

   OriginalPaper Pages: 51 - 54

6. On the biology of an estuarine population of the clupeidPellonula afzeliusi (Johnels) in Lagos Lagoon, Nigeria

   • K. Ikusemiju
   • A. A. Oki
   • M. Graham-Douglas

   OriginalPaper Pages: 55 - 59

7. Cyclomorphosis inEubosmina longispina in a small North American pond

   • Robert W. Black II
   • Nelson G. Hairston Jr.

   OriginalPaper Pages: 61 - 67

8. Aquatic Hyphomycetes of a mountain stream in Valsesia (Piemonte)

   • G. Del Frate
   • G. Caretta

   OriginalPaper Pages: 69 - 71

9. Invertebrates and urban runoff in a small northern stream, Edmonton, Alberta, Canada

   • Eric R. Whiting
   • Hugh F. Clifford

   OriginalPaper Pages: 73 - 80