Figure 6

Cladistic and phenetic analyses of morphological data. A: Cladistical analysis of morphological data based on 23 qualitative characters. Majority rule consensus tree of 340 equally parsimonious tree (consistency index = 0.633; retention index = 0.837) obtained with the exclusion of Sagitta bipunctata. Majority rule consensus values are shown above internal branches. Only synapomorphies presenting a consistency index = 0.6 are shown on the branches. Black bars represent synapomorphies with the corresponding morphological character number above and the character state change below. Red and Green bars correspond to alternative hypotheses according to DELTRAN or ACCTRAN optimisation respectively. Characters coding is presented in Additional file 2. B: Phenetic analysis of morphological data based on 23 qualitative and 9 quantitative characters. Approximately unbiased test values are shown above internal branches. Characters coding is presented in Additional file 2.