Dana, 1851
Carapace oval, regions poorly defined; median part of frontal margin strongly deflexed downwards; inner supraorbital tooth and lateral part of frontal margin forming laterofrontal cleft which third antennal segment is lodged. Posterior margin of epistome medially clefted, forming median triangular part; endostomial ridges low but discernible. Sternites 1 and 2 fused, no suture visible; suture between sternites 2 and 3 deep, suture between sternites 3 and 4 interrupted medially. G1 long and slender with short spines on distal margins, no long plumose hairs; G2 short, basal segment well developed but distal segment absent. Male abdomen 7-segmented, all segments freely movable. (Ng & Wang, 1994)
Type species: Pseudozius planus Dana, 1852, subsequent designation by Ward, 1933.
Species treated:
Pseudozius caystrus (Adams & White, 1849)