Planche 1 issued from : J.M. Bradford-Grieve, E.L. Markhaseva, C.E.F. Rocha & B. Abiahy in South Atlantic Zooplankton, Ed. D. Boltovskoy, 1999, Vol. 2. [p.1068, Fig. 7.383]. As Labidocera darwinii.
Female characters (from key, p.959):
- urosome (dorsal).
- Head without lateral hooks.
- Forehead without crest, rounded in dorsal view.
- Posterior corners of last thoracic segment produced into long points, with out posterior lobes.
- Exopod terminal segment of P5 with bifurcate tip.
- Genital segment with wide, rounded projection.

Male characters (from key, p.959) :
- P5 (B = basis; l = leff leg, r = right leg).
- Basis of left P5 with broadly-based, triangular, inner distal process which extends just beyond distal border of exopodal segment 1.