P. erythrocyclus Chan & Crosnier, 1997

Description. Rostrum more or less as long as carapace and just overreaching scaphocerite, curving downward at base but abruptly upturned after passing the eye, dorsal border with only 2 small apical teeth and 1–2 fixed basal teeth above eye, ventral border with 7–9 evenly distributed teeth between level of eye and tip; eye subspherical and bearing distinct ocellus; 3rd maxilliped bearing well developed epipod and a long exopod, with penultimate segment 0.6–0.7 times as long as distal segment, overreaching scaphocerite by 1/3–1/2 of distal segment; 2nd pereiopods bearing 20–22 carpal articles on the right side and 76–83 carpal articles on the left side (Chan & Crosnier 1997).

Distribution. Known only from Taiwan at depths of 267–360 m (Chan 2004).