MORPHOLOGY AND MICROSTRUCTURE OF SELECTED TINTINNINA-LORICAE

The morphology and microstructure of three types of tintinnid loricae, hyaline, partially and totally agglutinated by foreign particles, fro m different geographic areas, are described. Their external surface mo rphology differs; on the hyaline surfaces there are granules or/and br istles, while the surfaces of agglutinated regions, when particle free are always smooth. Internally, each is similarly trilaminar, giving a honeycomb-like structure. Modifications are restricted to element siz e, number, and construction of laminae.