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FIGURE 6 in Partial revision of Japanese Pectinariidae (Annelida: Polychaeta), including redescriptions of poorly known species

FIGURE 6. Pectinaria hiuchiensis. Body, chaetae, hooks and uncini of CBM-ZW 1052. (A) Entire animal, lateral view. (B) Head and anterior part, lateral view. (C) Head and first chaetiger, dorsal view. (D) Palea. (E) Scaphe, dorsal view. (F) Hooks. (G–H) Chaetae of anterior chaetiger. (J) Uncinus from middle chaetiger. Scale bars 1 mm (A, B, C, E, F); 0.5 mm (D); 50 µm (G); 10 µm (H, J).

FIGURE 4 in Partial revision of Japanese Pectinariidae (Annelida: Polychaeta), including redescriptions of poorly known species

FIGURE 4. Lagis bocki. Body of CBM-ZW 1069. (A) Lateral view of head and anterior part. (B) Entire animal, latero-ventral view. (C–D) Scaphe. (E) Posterior part of scaphe. Scale bars (A–E) 1 mm.

FIGURE 5 in Partial revision of Japanese Pectinariidae (Annelida: Polychaeta), including redescriptions of poorly known species

FIGURE 5. Lagis bocki. Scanning electron microscope images of chaetae, hook and uncini of CBM-ZW 1050. (A) Chaetae of chaetiger 2. (B) Hooks. (C) Middle abdomen uncini. Scale bars 10 µm (A); 20 µm (B); 5 µm (C).

FIGURE 9 in Partial revision of Japanese Pectinariidae (Annelida: Polychaeta), including redescriptions of poorly known species

FIGURE 9. Pectinaria okudai. Scanning electron microscope images of IzRO-Pol-002. (A) Thorax chaetae. (B) Tip of chaeta. (C) Hooks. (D) Uncini. Scale bars 50 µm (A); 10 µm (C); and 5 µm (B, D).

FIGURE 7 in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 7. Chaetae of Pectinaria carnosus n. sp., holotype, AM W.47431. A. Notochaetae of chaetiger 1 (above) and chaetiger 6 (below), both with robust chaetae and smooth winged capillaries; B. smooth winged capillary from notochaetae of chaetiger 5 as viewed under a compound microscope; C. Neurochaetal uncini of chaetiger 5, main teeth arranged in 2 rows. Abbreviations: c = smooth winged capillaries. Scale bars: A–B = 0.1 mm, C = 0.01 mm.

FIGURE 6. Pectinaria carnosus n in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 6. Pectinaria carnosus n. sp., stained with methyl green, holotype, AM W.47431. A. Ventral view of anterior end; B. Lateral view of anterior end; C. Posterior end; D. Lateral view of last chaetigers. Abbreviations: avl = anteroventral lobes, br = branchiae, bt = buccal tentacles, cv = cephalic veil, g = glandular area, nec = neurochaetae, noc = notochaetae, or = opercular rim, p = paleae, s = scaphe, sh = scaphal hooks. Scale bar: A–D = 1 mm.

FIGURE 5. Pectinaria carnosus n in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 5. Pectinaria carnosus n. sp., stained with methyl green, holotype, AM W.47431. A. Ventral view of entire animal; B. Dorsal view of entire animal. Scale bar: A–B = 1 mm.

FIGURE 2. Amphictene lizardensis n in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 2. Amphictene lizardensis n. sp., stained with methyl green, holotype, AM W.47432. A. Ventral view of anterior end; B. Dorsal view of anterior end; C. Lateral view of anterior end; D. Dorsal view of posterior end. Abbreviations: br = branchiae, bt = buccal tentacles, cv = cephalic veil, or = opercular rim, p = paleae, s = scaphe, sh = scaphal hooks, ss = unknown spherical structure. Scale bars: A–D = 0.1 mm.

FIGURE 4 in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 4. Pectinaria antipoda, stained with methylene blue, AM W.45851. A. Ventral view of whole animal; B. Dorsal view of whole animal; C. Ventral view of anterior end, anterior margin of chaetiger 2 with large papillae, characteristic of P. antipoda. Scale bars: A–C = 0.1 mm.

FIGURE 1. Amphictene lizardensis n in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 1. Amphictene lizardensis n. sp., stained with methyl green. A. Ventral view of entire animal, paratype, AM W.47429; B. Dorsal view of entire animal, holotype, AM W.47432. Scale bars: A–B = 0.1 mm.

FIGURE 3 in New records of Pectinariidae (Polychaeta) from Lizard Island, Great Barrier Reef, Australia and the description of two new species

FIGURE 3. SEM images of Amphictene lizardensis n. sp., paratype, AM W.47433. A. Antero-dorsal view, opercular rim with triangular lappets, characteristic of Amphictene species, paleae thick, distally curved and extended to form filiform tips; B. Ventral view of anterior end of specimen, buccal tentacles conspicuous and markedly wide, two pairs of branchiae inserted laterally on segments 3 and 4, consisting of loose flat lamellae, chaetae commence from segment 5; C. Ventro-lateral view of specimen, neuropodia with neurochaetae commencing from chaetiger 4; D. Notochaetae of chaetiger 4 finely hirsute, some with smooth tip capillaries and some with broad distal pectinate wings; E. Neurochaetae of thoracic chaetiger, uncini arranged in 3–6 longitudinal rows, each row with 6–9 teeth; F. Dorsal view of posterior end, scaphe as broad as long, scaphal hooks broad based with pointed tips, most pairs are lost in this specimen; G. Lateral view of posterior end, scaphal margin crenulated forming lobes. Abbreviations: br = branchiae, bt = buccal tentacles, cv = cephalic veil, nec = neurochaetae, noc = notochaetae, or = opercular rim, p = paleae, s = scaphe, sh = scaphal hook, ss = unknown spherical structure. Scale bars: A–C, F–G = 0.1 mm, B (insert), D–E = 0.01 mm.

FIGURE 41 in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 41. Bayesian phylogenetic tree of the family Pectinariidae based on multigene sequences (COI, 16S rDNA, 18S rDNA, 28S rDNA and H3), including 13 species of pectinariids and two outgroups (one of the family Trichobranchidae, another of the family Arenicolidae). Numbers above nodes are posterior probabilities.

FIGURE 40 in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 40. Pectinaria crenulatus (Sun & Qiu, 2012) (SCSMBC030943): A. Lateral view of entire body; B. Tube; C. Lateral view of anterior end; D. Lateral view of posterior end. Abbreviations: af, anal flap; an, anus; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; lel, lateral ear-shaped lobe; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; vl, ventral lappet.

FIGURE 36 in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 36. Map illustrating the distribution of Pectinaria plurihamus (Choi, Jung & Yoon, 2017) and P. crenulatus (Sun & Qiu, 2012) in the coastal waters of China.

FIGURE 20. Pectinaria dayaensis n in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 20. Pectinaria dayaensis n. sp. Paratype (SCSMBC030912), under the SEM: A. Lateral view of entire body; B. Ventral view of anterior end; C. Dorso-lateral view of anterior end; D. Ventral view of segment 4; E. Branchiae; F. Close up of lobe on branchia; G. Close up of buccal tentacle; H. Ventro-lateral view of posterior end; I. Dorso-lateral view of posterior end; J. Dorsal view of anal flap; K. Posterior view of scaphe; L. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pads; lel, lateral ear-shaped lobe; lh, lateral hump; ll, lateral lobe; mvl, mid-ventral lobe; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet; vll, ventro-lateral lobe.

FIGURE 19. Pectinaria dayaensis n in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 19. Pectinaria dayaensis n. sp. Methyl Green stained body of Holotype (SCSMBC030911): A. Dorso-lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Dorso-lateral view of anterior end; E. Ventral view of anterior end; F. Ventral view of segment 4. G. Lateral view of posterior end; H. Ventral view of posterior end; I. Dorsal view of posterior end; J. Scaphal hooks; L. Anal flap. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet.

FIGURE 17 in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 17. Map illustrating the distribution of Pectinaria torquata Zhang & Qiu, 2017, P. dayaensis n. sp., P. lizhei n. sp. and P. xiukaii n. sp. in the coastal waters of China

FIGURE 14 in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 14. Lagis bocki (Hessle, 1917) from the northern South China Sea (SCSMBC030885), chaetae under the SEM: A. Notochaetae on segment 5; B–C. Close ups of notochaetae on segment 8; D. Median uncini of neuropodia on segment 17; E. Ventral uncini of neuropodia on segment 17; F. Dorsal uncini of neuropodia on segment 11; G. Median uncini of neuropodia on segment 11; H. Ventral uncini of neuropodia on segment 11.

FIGURE 28. Pectinaria lizhei n in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 28. Pectinaria lizhei n. sp. chaetae on posterior segments of Paratype (SCSMBC030899), under the SEM: A. Parapodia on segments 18–20; B–D. Close ups of notochaetae on segment 9; E. Ventral uncini of neuropodia on segment 18; F. Median uncini of neuropodia on segment 18; G. Dorsal uncini of neuropodia on segment 18. Abbreviations: noc, notochaetae; s, segment.

FIGURE 32. Pectinaria xiukaii n in Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records

FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks.