The statement of the type locality of P. orientalis is: “Japan. Salmin”.Balss (1914:76), who examined Doflein’s type
specimen and synonymized P. orientalis with the present species, remarked that the locality indication “Japan” is
doubtful “da auf Salmins Fundorte in unserer Sammlung kein Verlass ist” and as the species was not known from Japan.
C-L. Salmin was a dealer in natural history objects in Hamburg in the second half of the last century (the Lei den Museum
had dealings with him between 1863 and 1875) and evidently, like several of such dealers at that time was not very
accurate with labelling his material. The true type locality of P. orientalis thus is unknown; the holotype was in ZSM,
now probably lost (not located in 1989).