From Williams et al., 2017:

[Dictyopyxidia, Eisenack, 1961, p.316; nom. subst. pro Dictyopyxis, Cookson and Eisenack, 1960b, non Dictyopyxis, Ehrenberg, 1844

Type species: Dictyopyidia areolata, Cookson and Eisenack, 1960b (pl.39, fig.12)]

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Original description Dictyopyxis: Cookson and Eisenack, 1960:

Description:
Shell elongate with rounded ends and a reticulate wall; a division into epitheca and hypotheca and the presence of a `girdle` may be suggested by the more regular shape and arrangement of the meshes at or near the equator.
The shell opens by the detachment of one of the ends.