Planispirillina Bermúdez 1952
Planispirillina inaequalis (Brady 1879) (Fig. 16:15)
Description. See Brady (1879, p. 278, pl. 19, fig. 25a–b).
Distribution within study area. Planispirillina inaequalis Brady 1879 was the more abundant of the two Planispirillina species from the CG and was only collected as fragmentary remains from six sites in the One Tree Island Lagoons. Only one specimen was found per site.
Planispirillina spinigera (Chapman 1900) (Fig. 16:17–20)
Description. See Chapman (1900, p. 133, pl. 1, fig. 7).
Distribution within study area. Planispirillina spinigera (Chapman 1900) only occurs in the three lagoons of One Tree Island with one to two specimens collected per site.