FIGURE 1 in Needle in a haystack-genetic evidence confirms the expansion of the alien echinoid Diadema setosum (Echinoidea: Diadematidae) to the Mediterranean coast of Israel

FIGURE 1 Images of live Diadema setosum in the field: A) from Tel Aviv, Israel (32.086358°N, 34.763918°E), on 10.11.2016, at a depth of 6-8 m (Photograph: Adi Gvir; specimen not collected). B) from Tel Aviv, Israel (32.083633°N, 34.762836°E), on 17.06.2017, at depth of 3.5 m (a single spine was retrieved from specimen, deposited at the Steinhardt Museum of Natural History, Tel Aviv University under voucher number SMNH_Ec_25635). Scanning electron microscope images of D. setosum spines from specimen shown in B. C) longitudinal view showing the characteristic diadematoid verticillation; D) transverse section showing the axial cavity and solid wedges of the spine. See also Supplementary materials Fig. S3.