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FIGURE 9. Prionospio anneae n in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 9. Prionospio anneae n. sp. AM W.45273 (holotype). A. Chaetiger 1, frontal view; B. Chaetiger 2, frontal view; C. Chaetiger 3, frontal view; D. Chaetiger 4, frontal view; E. Chaetiger 5, frontal view; F. Chaetiger 6, frontal view; G. Chaetiger 7, frontal view. Scale bars: A–G—50 µm.

FIGURE 32 in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 32. Pseudopolydora cf. rosebelae. A–D—AM W.45381. A. Notopodial spines of chaetiger 5. B. Bidentate hooded hook from neuropodium of chaetiger 8; C, D. Notopodial spines of chaetiger 5; C. Anterior-row pennon spine with long sharply pointed tip; D. Posterior-row simple falcate spine. Abbreviations: an—anterior-row notopodial spines, po—posterior-row notopodial spines. Scale bar: 20 µm.

FIGURE 12. Prionospio cerastae n in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 12. Prionospio cerastae n. sp. A–F—AM W.45269. A. Anterior end in dorsal view, showing branchiae on chaetigers 2–5; B. Anterior end in dorsal view, showing eyes and fronto-lateral horns on prostomium; C. Chaetigers 3–6 in dorsal view, showing pinnate branchiae on chaetiger 5; D. Anterior end in dorsal view; E. Anterior end in ventral view; F. Posterior end in dorsal view, showing two short ventral bulbs, middorsal cirrus missing. Scale bars: A–C, E, F—50 µm. D—100 µm.

FIGURE 8. Prionospio anneae n in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 8. Prionospio anneae n. sp. A—AM W.45272; B–D—AM W.45273 (holotype). A. Anterior end, left lateral view; B, C. Anterior end, dorsal view; D. Chaetigers 5–8, dorsal view. Scale bars: A–D—100 µm.

FIGURE 26 in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 26. Prionospio cf. tetelensis. A, B—AM W.45510. A, Prostomium, dorso-left lateral view, showing lateral eyes (la), median eyes (me) and associated transverse bands of red pigment (pi); B. Branchium of chaetiger 3 in frontal view, showing numerous pinnae arranged on lateral and rear sides. Scale bars: A, B—50 µm.

FIGURE 7 in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 7. Polydorella prolifera. Morphology of chaetae. A–H—AM W.45231. A. Notopodial spines of segment 5 comprising anterior-row spines with denticulate upper edge, and posterior-row simple acicular spines; B. Bidentate hooded hooks from neuropodium of segment 8; C–G. Set of chaetae of segment 5; C. Dorsal superior alimbate capillary chaeta; D. Anterior-row notopodial spine in lateral view; E. Same in rear view; F. Posterior-row notopodial spine in lateral view; G. Ventral winged capillary chaeta; H. Bidentate hooded hook from neuropodium of segment 8. Scale bars: A, B—20 µm.

FIGURE 3. Aonides orensanzi n in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 3. Aonides orensanzi n. sp. A, B—AM W.45222; C–H—AM W.45220; I, J—AM W.45226. A. Anterior end in left lateral view with palps missing; B. Same, optical section, showing ventral buccal bulb below anterior part of oesophagus; C–E. Chaetae from anterior neuropodium; C. Bidentate hooded hook in lateral view; D. Same in frontal view; E. Alternating capillary with narrow wing; F–J. Chaetae from posterior neuropodium; F. Tridentate hooded hook in lateral view; G. Same in frontal view; H. Quadridentate hook in fronto-lateral view; I. Hair-like alimbate alternating capillary; J. Inferior sabre chaeta.

FIGURE 4. Aonides orensanzi n in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 4. Aonides orensanzi n. sp. A. Relationships between distribution of branchiae (referring to number of the last branchiate chaetiger) and total number of chaetigers in worm; B. Relationships between anterior position of hooks in neuro- and notopodia (in chaetiger numbers) and total number of chaetigers in worm; C. Relationships between anterior and posterior position of excretory metanephridia (referring to number of the first and the last chaetigers bearing nephridiopores) and total number of chaetigers in worm.

FIGURE 6. Polydorella prolifera. A–C in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 6. Polydorella prolifera. A–C—AM W.45231. A. Entire stock individual in the beginning of asexual reproduction by paratomy, showing stolon developing between segments 11 and 12; B. Posterior end in dorsal view, showing newly developing stolon; C. Anterior end in left lateral view; D–F. Various sponges with worms in tubes on the surface. Abbreviations: brbranchium, nu—nuchal organ, pa—palp, py—pygidium, s1–s12—segments 1–12 of stock individual, s12'—newly regenerating segment 12 of stock individual. Scale bars: A—100 µm; B, C—50 µm; D–G—5 mm. Photo: E, F—Alexander Semenov.

FIGURE 2 in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 2. Aonides cf. nodosetosa. A. Relationships between distribution of branchiae (referring to number of the last branchiate chaetiger) and total number of chaetigers in worm; B. Relationships between anterior position of hooks in neuro- and notopodia (in chaetiger numbers) and total number of chaetigers in worm; C. Relationships between anterior and posterior position of excretory metanephridia (referring to number of the first and the last chaetigers bearing nephridiopores) and total number of chaetigers in worm.

FIGURE 5 in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 5. Dipolydora armata AM W.45506. A. Left side of chaetigers 2–6 in ventral view; B. Right side of chaetiger 5 in ventral view; C. Bidentate hooded hooks and inferior capillary from a medium neuropodium, left side in rear view; D. Bidentate hooded hooks, alternating capillary and an inferior capillary from a posterior neuropodium, left side in rear view; E. Posterior chaetiger showing broken bundle of twisted awl-like spines; F. Posterior chaetiger showing intact notopodial bundle of awl-like spines occupying most of space of the chaetiger. Abbreviations: al—alternating capillary, ho—hooded hooks, inventral inferior capillary, la—lateral tooth, ve—ventral capillary chaetae. Scale bars: A, E, F—20 µm; B–D—10 µm.

FIGURE 1 in Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora

FIGURE 1. Aonides cf. nodosetosa. AM W.45224. A. Anterior end of a 50-chaetiger individual in left lateral view with right palp missing; B. Same, optical section, showing ventral buccal bulb below anterior part of oesophagus; C. Posterior end of same individual in left lateral view; D–F. Chaetae from a middle neuropodium; D. Tridentate hooded hook in frontal view; E. Same in lateral view; F. Hair-like alimbate alternating capillary.

FIGURE 14 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 14. Aurospio abranchiata sp. nov. Porcupine Abyssal Plain (Bengal5_D231_13368#20 sp81). a) Dorsal view of anterior chaetigers; scale bar = 100 µm. b) Mid-body chaetigers showing dorsal folds; scale bar = 100 µm. c) Detail of anterior chaetigers scale bar = 100 µm.

FIGURE 11 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 11. Aurospio tribranchiata sp. nov. (Bengal5 D231 13368#25). a) Dorsal view of anterior chaetigers; scale bar = 200 µm. b) Detail of the anterior chaetigers; scale bars = 100 µm. c) Lateral view of anterior chaetigers; scale bars = 100 µm. d) Second specimen (D222_12390#59) showing anterior chaetigers, the third pair of branchiae are missing; scale bar = 50 µm.

FIGURE 9 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 9. Prionospio sp. C a) Dorsal view of anterior chaetigers; scale bar = 200 µm. b) Dorsal view showing arrangement of branchiae; scale bar = 200 µm.

FIGURE 7 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 7. Prionospio kaplani sp. nov. (EqPac specimen 888). a) Dorsal view of anterior segments; scale bar = 200 µm. b) Close up of chaetiger 2 show very small branchia (Br) to left of dorsal lamella (DL); scale bar = 10 µm. c) Electron micrograph of hooded hooks; scale bar = 2 µm; c1) electron micrograph of hooded hook showing bidentate condition (scale as in (c)).

FIGURE 6 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 6. Prionospio hermesia sp. nov. a) Frontal view showing the first pair of branchiae; scale bar = 100 µm. b) Neuropodial multidentate hooded hooks; scale bar = 5 µm. c) Dorsal view of anterior chaetigers; scale bar = 100 µm. d) Photomicrograph of bidentate hook; scale bar = 10 µm. e) Photomicrograph of multidentate hook (x1000).

FIGURE 5 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 5. Prionospio branchilucida sp. nov. a) Dorsal view of anterior segment; scale bar = 100 µm. b) lateral view of anterior chaetigers; scale bar = 200 µm. c) Detail dorsal view of anterior chaetigers showing the branchiae; scale bar = 50 µm. d) Photomicrograph showing the first pair of branchiae; bar scale = 50 µm.

FIGURE 4 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 4. Prionospio vallensis sp. nov. a) Dorsal view of anterior chaetigers; scale bar = 200 µm. b) Lateral view of anterior chaetigers; scale bar = 200 µm. c) Detail of branchial arrangement; scale bar = 200 µm. d) Photomicrograph of neuropodial hooded hooks; scale bar = 10 µm.

FIGURE 3 in New Prionospio and Aurospio Species from the Deep Sea (Annelida: Polychaeta)

FIGURE 3. Prionospio amarsupiata sp. nov. a) Dorsal view of anterior chaetigers; scale bar = 200 µm. b) Lateral view of anterior chaetigers; scale bar = 500 µm; c) Photomicrograph of a group of neuropodial hooded hooks. d) Photomicrograph close-up of neuropodial hooded hooks; scale bar = 10 µm, applies to c) and d).