摘 要: | The present paper dealing with two new species and one new genus of the Polyplacophora . is the first of a series of reports of systematic study on the deep sea mollusca collected by the research vessels JINXING and KEXUE I of the Academia Sinica , Institute of Oceanology , during 1978 and 1981 from the continental margin to the bathyal zone of the East China Sea .
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