Limnodriloides hrabetovaesp. n., characterized by small male ducts with atrial ducts longer than ampullae, spermathecal pores in line with ventral setae and lack of spermatozeugmata, is described from the Adriatic coasts of Italy and Yugoslavia.Limnodriloides maslinicen‐sis(Hrabë) is reported from Italy for the first time. An aberrant specimen ofL. appendiculatusPierantoni with oesophageal diverti‐cula in segment VIII is described, and new records ofL. pierantonii(Hrabë) andThalassodrilides gurwitschi(Hrabë) are given. The first species ofTectidrilusfrom the Mediterranean Sea,T. pranzoisp. n., which lacks body wall papillae as well as oesophageal diverticula, is described from Sardinia.