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Figure 7 in A bloom of the green worm Phyllodoce tuberculosa Kudenov, 1975 in a beach of the Southern Gulf of California, Mexico (Annelida, Errantia, Phyllodocidae)

Figure 7. Preserved specimens of Phyllodoce tuberculosa. (a) Anterior end, oblique dorsal view; (b) prostomium and nuchal papillae; (c) tubercles in mid-body segments (indicated by arrows); (d) parapodium from anterior segment; (e) parapodium from mid-body segment; (f) parapodium from a posterior segment. (a) Live specimen; (b–f) fixed specimen; (b) stained with Shirlastain-A; (c–e) unstained. Scale bars: a = 1 mm; b–c = 0.5 mm; d–f = 0.4 mm.

Figure 3 in A bloom of the green worm Phyllodoce tuberculosa Kudenov, 1975 in a beach of the Southern Gulf of California, Mexico (Annelida, Errantia, Phyllodocidae)

Figure 3. Micrographs of live, relaxed specimens of Phyllodoce tuberculosa in dorsal view. (a) Worm with pharynx not everted; (b) worm with partially exposed pharynx; (c) mid-body segments. Scale bars: 1 mm.

Figure 6 in A bloom of the green worm Phyllodoce tuberculosa Kudenov, 1975 in a beach of the Southern Gulf of California, Mexico (Annelida, Errantia, Phyllodocidae)

Figure 6. Preserved specimens of Phyllodoce tuberculosa stained with Shirlastain-A. (a) Anterior end, pharynx fully exposed, dorsal view; (b) same, ventral view; (c) transversal section of basal half of proboscis; (d) pharynx tip, frontal view, showing distal papillae. Scale bars: a, b, d = 1 mm; c = 0.5 mm.

Figure 2 in A bloom of the green worm Phyllodoce tuberculosa Kudenov, 1975 in a beach of the Southern Gulf of California, Mexico (Annelida, Errantia, Phyllodocidae)

Figure 2. Specimens of Phyllodoce tuberculosa during low tide in Playa Norte, Mazatlán, Southern Gulf of California. (a) Panoramic view and use of quadrant; (b) mucus trails; (c) green single worm, detail of (b). Scale bars: a = 5 cm; b = 10 cm; c = 3 cm.

Figure 4 in A bloom of the green worm Phyllodoce tuberculosa Kudenov, 1975 in a beach of the Southern Gulf of California, Mexico (Annelida, Errantia, Phyllodocidae)

Figure 4. Micrographs of live, relaxed specimens of Phyllodoce tuberculosa. (a) Prostomium and anterior segments, ventral view; (b) mid-body segments, ventral view; (c) male, parapodia from mid-body segments, lateral view; (d) spermatozoa. Scale bars: a–c = 0.8 mm; d = not scaled, magnification 1000X.

Figure 5 in A bloom of the green worm Phyllodoce tuberculosa Kudenov, 1975 in a beach of the Southern Gulf of California, Mexico (Annelida, Errantia, Phyllodocidae)

Figure 5. Micrographs of parapodia and dorsal cirri of Phyllodoce tuberculosa. (a) Female, parapodia of mid-body segments full of oocytes (indicated with arrows); (b) dorsal cirri of anterior segments; (c) dorsal cirri of mid-body segments; (d) dorsal cirri of posterior segments, and pygidial cirri. (a–c) Live, relaxed specimens; (d) fixed specimen stained with Shirlastain-A, dorsal view. Scale bars: a = 1.5 mm; b, d = 0.5 mm; c = 1 mm.

FIGURE 14 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 14. Neighbor-Joining phylogenetic tree of 55 specimens based on 16S gene sequences (Table 2). The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. Statistical support for clades in the tree was assessed using the bootstrap analysis with 1,000 replicates.

FIGURE 15 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 15. Neighbor-Joining phylogenetic tree of 106 specimens based on CO1 gene sequences (Table 2). The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. Statistical support for clades in the tree was assessed using the bootstrap analysis with 1,000 replicates.

FIGURE 11 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 11. Naineris grubei australis (?), juvenile, AM W.44038, methylene blue staining. A. Dorsal general view; B. General lateral view; C. Thorax-abdomen transition.

FIGURE 13 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 13. Neighbor-Joining phylogenetic tree of 53 specimens based on 18S gene sequences (Table 2). The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. Statistical support for clades in the tree was assessed using the bootstrap analysis with 1,000 replicates.

FIGURE 12 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 12. Photographs of live specimens. A. Scoloplos acutissimus; B. Scoloplos dayi; C. Leodamas dubia; D. Naineris

FIGURE 10 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 10. Naineris grubei australis, AM W.44763, SEM images. A. Thoracic parapodia, anterior view; B. Abdominal parapodia, anterior view of outer neuropodial lobe; C. Thoracic neuropodial hooks; D. Thoracic neuropodial subuluncini and capillary chaetae; E. Abdominal neuropodial aciculae and capillary chaetae; F. Abdomen, dorsal view, note ciliated ridge (cr)

FIGURE 9 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 9. Naineris grubei australis, AM W.44763. A–C: methylene blue staining. A, B. General view; C. Thorax-abdomen transition; D–H: Glycerol mounts of parapodia. D. Chaetiger 13; E. Same, close-up of upper part with subuluncini; F. Same,

FIGURE 8 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 8. Leodamas dubia, AM W.46094, SEM images. A. Anterior end, dorso-ventral view; B. Thorax-abdomen transition; C. Neuropodia of chaetigers 16 and 17, arrows indicate lateral organs; D. Neuropodium of chaetiger 15; E. Neuropodial hooks of chaetiger 15; F. Abdomen, dorsal view; G–I. Abdominal neuropodia with a variety of aciculae shapes; J. Forked chaetae of

FIGURE 5. Leitoscoloplos bifurcatus, A–D in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 5. Leitoscoloplos bifurcatus, A–D: AM W.44938, methylene blue staining. A. Anterior end, left lateral view; B. Thorax-abdomen transition, left lateral view; C. Parapodia of chaetigers 2 and 3; D. Abdomen, lateral view. E–H: AM W.46089, glycerol mounts of parapodia. E. Chaetiger 4; F. Chaetiger 13; G. Anterior abdominal chaetiger; H. Posterior

FIGURE 1. Scoloplos acutissimus, A–E in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 1. Scoloplos acutissimus, A–E: methylene blue staining. A–B: AM W.46090. A. Anterior end, left lateral view; B. Thorax-abdomen transition; C–D: AM W.44175. C. Thorax-abdomen transition; D. Anterior end, close-up, left lateral view; E. AM W.44942, anterior end, left lateral view. F–J: AM W.44175, glycerol mounts of parapodia. F. Parapodia of chaetiger 4; G. Parapodia of chaetiger 18; H. Abdominal parapodia; I. Abdominal neuropodia; J. Flail chaetae of abdominal neuropodia.

FIGURE 6 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 6. Leitoscoloplos bifurcatus, AM W.44761, SEM images. A. Anterior end, left lateral view, arrows indicate lateral organs; B. Neuropodium of chaetiger 2; C. Neuropodium of chaetiger 12; D. Parapodia of chaetigers 11–14, arrows indicate lateral organs between rami; E. Thorax-abdomen transition, dorsal organs (do) are seen mid-dorsally, arrows indicate lateral organs; F. Abdominal segments, dorsal view, dorsal organs (do) are seen mid-dorsally, arrow indicates lateral organ; G.

FIGURE 4 in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 4. Scoloplos dayi, AM W.46093, SEM images. A. Anterior end, left lateral view; B. Parapodia of chaetigers 1–3, arrows indicate lateral organs; C. Neuropodia hooks of chaetiger 2; D. Neuropodia of chaetiger 12; E. Neuropodial hooks of chaetiger 18; F. Thorax-abdomen transition; G. Forked chaetae from abdominal neuropodia; H. Posterior end with pygidium,

FIGURE 7. Leodamas dubia, A–D in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 7. Leodamas dubia, A–D: methylene blue staining. A. AM W.44765, anterior end, left lateral view; B. AM W.45479, anterior end, left lateral view; C. AM W.45479, thorax-abdomen transition; D. AM W.44765, abdomen, dorsal view, note dorsal organs (do). E–K: Glycerol mounts of parapodia. E. AM W.46094, parapodium of chaetiger 17; F. Same, close-up of neuropodia; G. AM W.46094, parapodium of chaetiger 18; H. AM W.46098, abdominal parapodia; I. AM W.44765, abdominal neuropodia; J. AM W.44765, neuropodial acicula; K. AM W.45478, neuropodial acicula.

FIGURE 3. Scoloplos dayi, A–D in Orbiniidae (Annelida: Errantia) from Lizard Island, Great Barrier Reef, Australia with notes on orbiniid phylogeny

FIGURE 3. Scoloplos dayi, A–D: methylene blue staining. A–C: AM W.45477. A. Anterior end, left lateral view; B. Anterior end, dorsal view; C. Neuropodia of segments 3 and 4; D. AM W.44764, thorax-abdomen transition, dorsal view; E–H: AM W.45477, glycerol mounts of parapodia. E. Chaetiger 13; F. Close-up of neuropodia of chaetiger 13; G. Abdominal chaetiger;