Not valid. Described from a specimen collected from Corpyphaena sp., Australia (Baird, 1850). The single specimen was without a cephalothorax or holdfasts (i.e. only the external portion of the parasite was documented). Inadequate description and insufficient information; synonym of P. filosa (Leigh-Sharpe 1928); accepted as P. filosa (Walter & Boxshall 2015).