Fig. 11. Shape PCA performed exclusively on barcoded Quadrulella cell morphology based on the test length (L), breadth (B), L/B ratio and the size of plates [min./max. values and surface of nine plates (µm2)]. The shape PCA was performed according to the MRA method (Baur and Leuenberger, 2011). Q. madibai can be discriminated based on its very small B/L ratio and its high aperture/B ratio (cf. Table 4), although it is not visible on the PCA.

Published as part of Anush Kosakyan, Daniel J. G. Lahr, Matthieu Mulot, Ralf Meisterfeld, Edward A. D. Mitchell & Enrique Lara, 2016, Phylogenetic reconstruction based on COI reshuffles the taxonomy of hyalosphenid shelled (testate) amoebae and reveals the convoluted evolution of shell plate shapes, pp. 606-623 in Cladistics 32 on page 618, DOI: 10.1111/cla.12167, http://zenodo.org/record/238712