FIGURE 4. Phyllochaetopterus lauensis n in A new species of Phyllochaetopterus (Chaetopteridae: Annelida) from near hydrothermal vents in the Lau Basin, western Pacific Ocean

FIGURE 4. Phyllochaetopterus lauensis n. sp., holotype and paratypes SIO-BIC-A976 and SAMA E3673. A–C, lateral and ventral views of region C; smaller, more posterior segments in Fig. 1A might be regenerated; see also Fig. 1B, segments 5C (larger) and 6C and following (smaller). D, Part of pygidium and posterior chaetigers, ventral view. E, Tube of paratype (SAMA-E 3673). F to J drawn from SEM micrographs. F–H, modified chaetae of A4. F, lateral view of anterior part. G and H, frontal view of head. I, lanceolate leaf-like chaeta of region A. J, uncinus of B2.