Spiniferites seghiris (Below, 1982) Lentin and Williams, 1993

Originally Spiniferites multibrevis ssp. seghiris, subsequently (and now) Spiniferites seghiris.
Sarjeant, 1983, considered Spiniferites multibrevis (Davey and Williams, 1966) Below, 1982, to be a tax. synonym of Galea (now Spiniferites) twistringiensis Maier, 1959. As noted by Fensome et al., 1990, Galea (now Spiniferites) twistringiensis is the sr. synonym at specific rank. However, Lentin and Williams, 1993, regarded the morphology of Spiniferites multibrevis ssp. seghiris as not falling within the variability of Galea twistringiensis so have retained it as the species Spiniferites seghiris.

Holotype: Below, 1982, pl.8, figs.4a-b
Age: Late Hauterivian

Original description (Below, 1982)
Diagnosis: A subspecies of Spiniferites multibrevis (Davey and Williams, 1966) stat. nov. with particularly weak furcate processes, which are very short at 1/4 to 1/6 of the central body diameter. The gonal appendages, no longer than the parasutural processes, ending simple or bifid to slightly bi- or trifurcate. Of these, two or three stand on a paraplate boundary. They have broad bases that unite to form the septum. Sie erjüngen sich distalwärts zunächst rasch, dann kontinuierlich und enden stumpf bifid oder bifurcat.
Dimensions
Holotype: length of central body 51 µm, width of central body 55 µm, length of processes 5-7 µm;
other specimens: length of central body 48-55 µm, width of central body 45-52 µm, length of processes 4-8 µm.