During the months of November and December, 1959, an extensive zoological col1ection of the gephyrean worms was made under the auspices of the Institute of Oceanology, Academia Sinica, along the coast of Hainan Island. On1y a limited amount of work has been done either by the author or others in the past on the distribution of this group of animals in China, and there is no record ever placed with the material of this region. The present col1ection reveals many genuine species distributed therein. There are altogether 16 species, 6 in the order Sipunculida and 1 in Echiurida are new to science. The latter is a new genus and several others are new records in China.