[1] Its chelipeds have tubercles near the carapace, granules and rounded spines further down, and tufts of setae on the fingers of its chelae.

[1] Its walking legs feature long, rounded spines, with its slightly curved dactyli having smaller rounded spines and tufts of setae.

[1] On its underside, its abdominal segments are covered with small granules.

[1] As of 2020[update], exactly one specimen of P. tuberipes has been described, a female found in the Huichas Islands near Puerto Aguirre [es], Chile in January 1945.

[2] P. tuberipes was named by carcinologist Enrique Macpherson in 1988, and its name is a combination of the Latin words "tuber" (referring to "tubercles") and "pes" ("foot").