FIG. 3. — Hyalopomatus madreporae n in New species of Hyalopomatus Marenzeller, 1878 (Annelida, Polychaeta, Serpulidae) from Recent Mediterranean deep-water coral mounds and comments on some congeners

FIG. 3. — Hyalopomatus madreporae n. sp. (sample AP01): A, dead branch of the scleractinian Madrepora oculata (Linnaeus, 1758) heavily encrusted by epizoans among which H. madreporae n. sp. (arrows); B, holotype, a complete tube on a M. oculata branch; note the juvenile portion of the attached part of the tube partially encrusting an hydrozoan growing on the coral; C, holotype, close-up of the tube junction at the encrusting-erect parts boundary; D, holotype, slightly disjoined articulation to show the inner chitinous layer inside the tube. Scale bars: A, 1 cm; B, 1 mm; C, 300 μm; D, 100 μm.