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| | EpitomaptaHeding, 1928 2 species Tentacles pinnate, usually 12. Sense organs never in the form of pigment eyes, but occur as sensory cups on the oral side of the tentacles. Calcareous ring well developed. The radial pieces are not perforated for the nerves, but with a notch in the anterior margin. Cartilaginous ring wanting. Polian vesicle and stone canal single. Stone canal unbranched. Ciliated funnels are of different shape and only found in the body wall, not on the mesenteries. Calcareous deposits in body wall are anchors, anchor plates and miliary granules. In the tentacles, they are rather large rods. The stock of anchors is finely toothed, and the vertex smooth. Anchor plates are distinctly serrate in the posterior end of the body. In the anterior end, they are usually smooth. Anchor plates have seven large holes in the anterior end and a varying number of smooth holes in the articular end. The articular end is faintly hollowed but a distinct bridge is wanting. (Heding, 1928) |
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