To avoid additional confusion, the nondiagnostic holotype of P. hislopi was replaced by a neotype (ISI R 42) with approval from the ICZN (Opinion 2045) following the application of Chatterjee (2001).
To prevent confusion, the original type of P. hislopi without diagnostic characteristics was replaced by a new type (ISI R 42), which was officially approved by the ICZN (Opinion 2045) after Chatterjee suggested it in 2001.