FIGURE 5 in First record of Hamacantha (Porifera, Demospongiae, Merliida, Hamacanthidae) from Japan, with description of two new species

FIGURE 5. Spicules of Hamacantha (Vomerula) umisachii sp. nov., holotype (NSMT-Po-2488). A, styles. B, magnified view of both extremities of mycalosyle, left: blunt end or base, right: sharply pointed end or apex. C, diancistras I. D, diancistras II (cyrtancistra-like diancistras). E, magnified view of tip of diancistra II, note the hook-like structure. F, sigmas. Scale bars: A, 100 µm; B, F, 10 µm; C, 50 µm; D, 20 µm; E, 3 µm.