Plate 1 issued from : T.C. Walter in Aust. J. Mar. Fresfw. Res., 1987, 38. [p.380, Fig.8].
Female (from Channel Island, Darwin): A, habitus (dorsal); B, last thoracic segment and urosome (lateral right side); C, idem (lateral left side); D, P5 (posterior view).

Male: E, habitus (dorsal); F, last thoracic segment and urosome (lateral right side); G, P5 (posterior view); H, idem (anterior view).

Plate 2 issued from : J.G. Greenwood in Proc. R. Soc. Qd, 1977, 88. [p.62, Fig.5, e-g]. As Pseudodiaptomus marinus.
Male (from 27°20'S, 153°15'E): e, P5 (posterior view); f, detail right endopod; g, P5 (anterior view of different specimen).
Nota: P5 with small clusters of spinules on coxae; right leg without subsidiary spinule in fork of 'Y'-shaped spine on outer distal corner of exopodal segment 1; the two arms of 'Y' unequal; spine at base of forked spine less than half length of the latter; inner margin of terminal hook on exopodal segment 2 finely denticulate. Right endopod with slender ramus longer than stouter ramus, and with a subterminal seta; stouter ramus terminating in 4 cups, 2 larger and 2 smaller. Left endopod extends only half to two-third length of exopod; inner margin curved, swollen distally, with numerous minute spinules distally and a plumose ridge along outer margin.
According to Greenwood these variations are not considered sufficient to warrant separation from P. marinus.