Pseudodiastylis ferox Calman, 1905
Pseudodiastylis ferox Calman, 1905: 16, pl. 2 figs 15–25.
Type material. Holotype: RMNH. Celebes, 5°40.7’S, 120°45.5’E. Not seen.
Diagnosis. Carapace without ridges, covered in spines; pseudorostrum more than 0.5 carapace length. Adult male unknown.
Depth. 1158 m.
Distribution. Celebes (= Sulawesi, Indonesia), 5°40.7’S, 120°45.5’E.
Remarks. The carapace lacks ridges, which differentiates this species from Pseudodiastylis delamarei, and the pseudorostrum is greater than 0.5 the length of the carapace, which differentiates this species from P. ferox, in which the pseudorostrum is less than 0.5 the carapace length.