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ABSTRACT. There has been a distinct lack of morphological, physiological, and taxonomic studies on the marine psammophilic ciliates despite their importance in the benthic biotope. These fragile ciliates are considered a problematical group, most research being attempted under inconvenient conditions on the seashore or at adjacent sites. To alleviate this problem, an apparatus has been designed to maintain psammophilic ciliate communities for periods of up to six months in the laboratory, making them freely available for detailed cytological study.