The body is oval and elongate. The ground colour is pale cream, with a dense dark brown reticulate along the mantle dorsal region, being lighter and less obvious in the foot dorsal region and absent in the well developed rhinophores. Bright white spots are scattered all over the mantle and more conspicuous on the dorsal foot surface. Rinophores are held erect in the living animals, whereas in the preserved ones they are in a lateral position. The mantle is reduced and fused with the oral veil; a large gill is visible on the right side of the body. The gill is attached along most of the body with about 26 pairs of pinnules per gill. The anal papilla lies over the seventh pinnule. The foot is rounded in front. At the posterior end, the foot ends in a rounded shape, with a large metapodial gland (yellowish) extending longitudinally from the posterior mantle towards the central foot sole. Dorsally to the metapodial gland, the foot has a brown or black tiny spur (Muniain et al. 2007)
P. inconspicua is recorded in the Western Atlantic from Cape Hatteras, North Carolina 35° N 80° W(USA) to San José Gulf 42° S 64° W (Argentina).
In the Eastern Atlantic is recorded from West Africa (Ivory Coast to Nigeria) and Mediterranean Sea (Israel). This amphiatlantic distribution should be tested in future studies.