美拟砂壳虫 2) Difflugia 砂壳虫属 1. In the present paper 12 species and subspecies ofDifflugia(Sarcomastigophora,Sarcodina,Rhizopoda,Lobsea,Arcellinida,Difflugiidae) were newly recorded from China. 记述了首次在中国横断山区各种淡水