Stimpson, 1871
In this section the antero-lateral margins of the carapace are dentated or spinose, and the post-abdomen in the male does not entirely cover the sternum at the base. In the typical genera, which are nearly related to the Camcrpodea through Panopeus and Galene, the last segment of the sternum is exposed at the anterior corners only; these genera are Euryplax, Panoplax, Eucratopsis, and perhaps Glyptoplax. In other genera e.g., Speocarcinus, Eucratoplax, and Prionoplax, the post-abdomen of the male is much narrower at the base, and a large part of the posterior segment of the sternum is exposed (Miers, 1884: 222).
Genera treated:
genus Eucrate de Haan, 1835
genus Heteroplax Stimpson, 1858