Exochosphaeridium spinosum var. spinosum

"var. spinosum".  Autonym.  Holotype: White, 1842, pl.4, fig.6.  Now redundant.  Originally Hystrichosphaeridium spinosum var. spinosum, subsequently Baltisphaeridium spinosum var. spinosum (Appendix A), thirdly Exchosphaeridium spinosum var. spinosum. Parent: Exochosphaeridium spinosum