Redescription of ancient types of sipunculids (Sipuncula) described by Prof. Jean-Louis-Armand de Quatrefages Bréau in 1865 and found in the collections of Worms Laboratory of the National Museum of Natural History in Paris. Doctoral student: José Ignacio Saiz Salinas. Year: 1983 University: University of the Basque Country (UPV/EHU) Director(s): Ana Rallo Gruss.