Abstract
Phallodrilus parthenopaeus Pierantoni, 1902, originally described from the Bay of Naples, is reported from other parts of Italy and from Ireland, and the description of its male genital ducts is slightly modified. The following new species are described: P. minutissimus, P. nidarosiensis (both from the Trondheimsfjord, Norway), P. georgei (Outer Hebrides, Scotland), P. klarae (North Sea off Belgium), P. messanensis, P. densespectinis (both from Sicily, Italy) and P. monnioti (Corsica, France).