FIGURE 11. Rhabdopleura emancipata n in Four new species and a ribosomal phylogeny of Rhabdopleura (Hemichordata: Graptolithina) from New Zealand, with a review and key to all described extant taxa

FIGURE 11. Rhabdopleura emancipata n. sp., A, B, holotype NIWA 13590; C, E, paratype 161211; D, paratype NIWA162566: A, B, close-up and whole colony (inset); principal tubes are identifiable in A by the dark-brown stolon that passes through them; abundant ringed tubes diverge almost at right angles from principal tubes. C, transmitted-light view of a principal tube (pt) from which two ringed tubes (rt) diverge and, between them, a branch of the principal tube with a bifurcation of the black stolon (bs); other abbreviations: cdc, cone of diaphragm complex; cs, contractile stalk (gymnocaulus) of zooid; fc, fusellar collar; s, septum. D, SEM of a principal tube (pt) (stem), with its aperture at left, and five ringed tubes in various stages of development. E, transmitted-light view of a principal tube (pt) (stem) and its black stolon (bs) in which are three young zooids (z), the middle one of which shows, from below, the opening of a potential ringed tube (ort). Scale bars: A, 3 mm; B, 3 cm; C‒E, 0.5 mm.