Planche 1 issued from : J.M. Bradford in N.Z. Jl Mar. Freshw. Res., 1971, 5 (1). [p.25, Fig.9]; From off British Columbia: 52°02'N, 132°53'W).
Female: a, habitus (dorsal); b, idem (lateral right side); c, genital segment and posterior thoracic points (lateral right side); d, e, rostrum (from two specimens).
Nota: Seminal receptacle with a moderately long thick tube, about 4 times as long as wide, connecting the dorsal and ventral sacs. Mouth parts and swimming legs identical with those of A. armatus

Male: f, habitus (ventral); g, idem (lateral right side); h, P5.
Nota: Rostrum absent. All appendages as in A. australis.

Planche 2 issued from : O. Tanaka in Publ. Seto Mar. Biol. Lab., 1957, VI (1). [p.32, Fig.23]. As Aetideus armatus.
Female (from Sagami Bay, Japan): a, habitus (dorsal); b, forehead (lateral); c, last thoracic segment and urosome (lateral left side); d, rostrum; e, P1 (right leg is of abnormal structure); f, P2.
Nota: Rostrum with a knob at the middle of the base. Proportional lengths of urosomites and furca 35:16:14:12:23 = 100. A1 (23-segmented) extends to distal end of furca. Mx1 has 9 setae on outer lobe, 11 setae on exopod, 6+3+4 setae on endopod, 5 setae on 2nd basal segment. Terminal spine of exopod of P2 has 17 teeth.

Male (from Sagami Bay, Japan): g, forehead (lateral); h, last thoracic segment and urosome (lateral left side); i, P5.
Nota: Rostrum reduced, represented by only a small knob. Proportional lengths of urosomites and furca 16:23:23:21:2:15 = 100. Anal segment almost concealed beneath the preceding. A1 reaches back to middle of third urosomal segment. End-spine of P2 has 26 teeth.

Planche 3 issued from : E.L. Markhaseva in Trudy Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.18, Fig.6].
Female (from 29°17'N, 142°47'E) & Male from Bradford (1971)

Planche 4 issued from : J.M. Bradford in N.Z. Jl Mar. Freshw. Res., 1971, 5 (1). [p.18, Fig.4, b]. [modified C.R]
Rostrum width : depth plotted against rostrum depth (c) for Aetideus divergens. SA: South Africa.
Compare with A. australis, A. truncatus, A. armatus and A. pseudarmatus.

Planche 5 Aetideus divergens female:
1 - Posterior corners not prolonged into wing-like lobes; points of last thoracic segment not reaching the middle of urosomal segment 2. Anterior part of cephalon without crest.
2 - Right P1 basipodite with an external tooth-like projection distally. Coxopodite of P4 without spinules near the base of internal seta.
3 - Posterior corners of last thoracic segment divergent, always exceeding posterior border of genital segment. Rostral excavation 0.8-1.2 times as wide as deep.

Planche 6 Aetideus divergensMale:
1 - Last thoracic segment with points.
2 - Points of posterior last thoracic segment exceeding posterior border of urosomal segment 1 (in dorsal view).
3 - Caudal rami 2.35-2.55 times as long as wide. 2nd segment of P5 less than 4 times as long as wide.