Manayunkia speciosa Leidy — a fresh-water polychaete found in Northern Alaska Charlotte Holmquist OriginalPaper 01 May 1967 Pages: 297 - 304
Obsevations on the effect of feeding Labeo rohita (Ham.) with Microcystis aeruginosa Kütz Mirza Rashid Ahmad OriginalPaper 01 May 1967 Pages: 388 - 388
Hydrobiological studies on the Tugela River system, Part VI-acidic drainage from Mines in the natal coalfields P. H. Kemp OriginalPaper 01 May 1967 Pages: 393 - 425
Osmotic regulation in juvenile oncorhynchus kisutch (Walbaum)-I A. G. Coche OriginalPaper 01 May 1967 Pages: 426 - 440
Mise en évidence d'un rythme endogène annuel dans la réactivité de la carpe à un apport adrénalinique M. WaitzeneggerA. Serfaty OriginalPaper 01 May 1967 Pages: 490 - 494
Biological investigations of an infiltration area and experiments with some algicides Věra Moravcová OriginalPaper 01 May 1967 Pages: 505 - 546
Zooplankton of Lake Titicaca on the Bolivian side Masuzo Uéno OriginalPaper 01 May 1967 Pages: 547 - 568