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Surface sediment samples collected from some 250 sampling stations serve as materials for a comprehensive study of the foraminiferal fauna of the East China Sea. Preliminary results of qualitative and quantitative faunal analyses (No. of specimens/50 g dry sediment) of the samples show that this region is rich in benthic foraminiferal fauna. The agglutinated species amount to 2/3 of the total number of agglutinated foraminifera reported for the Pacific region by Saidove (1966).
The present paper presents a taxomomic study of 146 species of porcelaneous foraminifera belonging to 33 genera classified under 5 families. Two genera and 25 species are new. Aside from fiving a detailed description of the external morphology of species illustrated in thirtythree plates, the internal chamber arrangement of over a hundred species, represented mostly by cross-sections, and a few by horizontal sections, are contained in the plates and text figures, A general account of the distribution of major genera and species is also given.

 

 

 

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