A new genus and a new species of Nereidae

A new genus and a new species have been established on the basis of three specimens collected from Fujian's coastal zone in China.This new genus is named Laevispinereis.Its brief characters are as follows:oral ring of proboscis has papillae, maxillary ring has conical paragnaths; the peristomium greatly expands into a collar; notosetaes are homogomph spinigers, neurosetaes are homogomph spinigers and homogomph falcigers; tip of spinigers setae with minute serratures and smooth on side.The type of genus is Laevispinereis fujianensis sp.nov., it has conical paragnaths on maxillary ring of proboscis:Ⅰ has 1; Ⅱ has 6-7:Ⅲ has 12;Ⅳ has 6-7.