(Flipse, 1930)
The gastric and cardiac tubercles are peculiarly high, nearly erect and cylindrical, justifying the specific distinction. In the specimen at hand the general contour of the carapace is similar to that shown in the original figure of Ps. hepatoconus rather than to that of this species due to having a short neck. The branchial tubercles are, however, erect and do not disguise the branchial margin in dorsal view. The branchial margin is armed with six conical teeth. All the ambulatory legs are detached in the specimen at hand. The anterior border of the merus is armed with several tubercles, and the posterior border with some. In the anterior two pairs each carpus is armed with three or four tubercles on its anterior border, and each propodus with one on the anterior border and two or three on the posterior. In the last two pairs the tubercles on the carpus and propodus are very prominent and lobate. (Takeda, 1977b)
Type locality: Sanguisiapo, "Siboga" stn 93, 12 m.
Range: Japan - Mage-jima, Kagoshima Prefecture (Takeda, 1976b, 1977b); Sulu Archipelago - Sanguisiapo (Flipse, 1930).