Pterococcus labyrinthus

"*labyrinthus" (Ostenfeld, 1903, p.578, fig.127) Lohmann, 1904, p.47.  Holotype: Ostenfeld, 1903, fig.127.  Combination illegitimate: generic name illegitimate.  NOW Nematosphaeropsis.  Originally Pterosperma (Appendix A), 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 Nematosphaeropsis balcombiana.  Motile equivalent: Gonyaulax spinifera (Claparède and Lachmann, 1859) Diesing, 1866, according to Dodge (1989, p.289).  N.I.A.  Age: extant.

Parent: Pterococcus