FIGURE 6 in Phylogeny and an integrated biogeography of Acanthotetilla Burton, 1959 (Demospongiae: Spirophorida: Tetillidae): two-way traffic on the peri-African track

FIGURE 6. Panbiogeographic map elaborated from both the current distribution of Acanthotetilla spp. and its phylogenetic cladogram (Fig. 5) by the hand method listed in Henderson (1989), subsequently adapted by Hajdu (1995) and in the present study. Arrowheads represent the polarity of each track. Multiple arrowheads in a single track imply several polarities inferred for that track. Letters in square: C = A. celebensis, E = A. enigmatica, G = A. gorgonosclera, H = A. hemisphaerica, R = A. rocasensis, S = A. seychellensis, W = A. walteri.