Pterosperma labyrinthus Appendix A

"labyrinthus" Ostenfeld, 1903, p.578, fig.127.  Holotype: Ostenfeld, 1903, fig.127.  NOW Nematosphaeropsis.  Originally Pterosperma, subsequently Pterococcus (combination illegitimate), thirdly Coccopterum, fourthly (and now) Nematosphaeropsis.  Taxonomic junior synonym: Nematosphaeropsis balcombiana, according to Reid (1974, p.592) - however, Wrenn (1988, p.139) retained Nematosphaeopsis balcombiana.  Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dodge (1989, p.289).  N.I.A.  Age: extant.

Parent: Pterosperma