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2. The energy cost of migration ofthe bivalve Donax on tropical sandy beaches;Ansell;Mar. Behav. Physiol.,1973
3. Rates of oxygen consumption by Thais (Nucella) lapillus (L);Bayne;J. exp. mar. Biol. Ecol.,1978
4. Voortplanting van die wit strandrnossel Donax serra Röding. Investigational report;De Villiers,1973
5. Groei, grootteverspreiding en n geval van massasterite by die wit strandmossel Donax serra Röding;De Villiers,1973