• Procephalothrix Wijnhoff, 1913 accepted as Cephalothrix Örsted, 1843
• Procephalothrix adriatica Senz, 1993 accepted as Cephalothrix adriatica (Senz, 1993)
• Procephalothrix aliena (Punnett, 1903) accepted as Cephalothrix aliena Punnett, 1903
• Procephalothrix arenarius Gibson, 1990 accepted as Cephalothrix arenarius (Gibson, 1990) accepted as Cephalothrix hongkongiensis Sundberg, Gibson & Olsson, 2003
• Procephalothrix fasciculus Iwata, 1952 accepted as Cephalothrix fascicula (Iwata, 1952) accepted as Cephalothrix fasciculus (Iwata, 1952)
• Procephalothrix filiformis (Johnston, 1828) accepted as Cephalothrix filiformis (Johnston, 1828)
• Procephalothrix filiformis sensu Iwata, 1954 accepted as Cephalothrix filiformis (sensu Iwata, 1954)
• Procephalothrix hermaphroditicus Gibson, Sánchez & Méndez, 1990 accepted as Cephalothrix hermaphroditicus (Gibson, Sánchez & Méndez, 1990) accepted as Cephalothrix hermaphroditica (Gibson, Sánchez & Méndez, 1990)
• Procephalothrix kiliensis Friedrich, 1935 accepted as Cephalothrix kiliensis (Friedrich, 1935)
• Procephalothrix major (Coe, 1930) accepted as Cephalothrix major Coe, 1930
• Procephalothrix mokievskii Korotkevich, 1982 accepted as Cephalothrix mokievskii (Korotkevich, 1982)
• Procephalothrix oestrymnicus Junoy & Gibson, 1991 accepted as Cephalothrix oestrymnicus (Junoy & Gibson, 1991) accepted as Cephalothrix oestrymnica (Junoy & Gibson, 1991)
• Procephalothrix orientalis Gibson, 1990 accepted as Cephalothrix orientalis (Gibson, 1990)
• Procephalothrix quequenensis Moretto, 1974 accepted as Cephalothrix quequenensis (Moretto, 1974)
• Procephalothrix simula Iwata, 1952 accepted as Cephalothrix simula (Iwata, 1952)
• Procephalothrix simulus Iwata, 1952 accepted as Procephalothrix simula Iwata, 1952 accepted as Cephalothrix simula (Iwata, 1952)
• Procephalothrix spiralis (Coe, 1930) accepted as Cephalothrix spiralis Coe, 1930