– No common name
The holotype ofP. membranaceus was caught on the 10th of January 1876, off Cabo San Vicente, Sarmiento Channel,Chile, BMNH 1887.12.7.20, “Challenger” Sta. 310, 74.0500º W, 51.4583º S.
According to Stein (2005), information on the collection area was obscure but unequivocal (Murray 1895). Over time, erroneous reports of the occurrence ofP. membranaceus accumulated in literature. In fact, Günther’s (1887) description omitted mentioning that it was from Chile (“... off Cape St. Vincent, Station 310...”). Subsequent authors did not verify the actual collection data, and even the Natural History Museum online catalogue included incorrect collection data that have subsequently been corrected (Stein 2005). Burke (1930) also omitted the information that the specimen was from the fjord waters of southern Chile, and Nobre (1935) and Albuquerque (1954 –1956) referred to Günther and Burke. Still later, Lindberg (1973) misinterpreted “Cape St. Vincent ” as meaning “off Portugal ”, i.e. the Cape St. Vincent, which is the best known geographic feature of the south coast of Portugal. Stein & Able (1986) cited Lindberg. The speciesP. membranaceus was omitted from the reviews of Chilean liparids (Steinet al. 1991) and of Southern Ocean species (Andriashev 1998, 2003). TheP. membranaceus record off mainland Portugal is erroneous. For this reason this species is not included in this list.