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FIGURE 11 in Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes

FIGURE 11.Microspio granulata Blake & Kudenov, 1978: Studies on the ventral epidermal glands (VEGs). A. Methyl green staining pattern, anterior end, ventral surface of anterior chaetigers (arrows point at white dots being the location of the VEGs), AM W.44381, MI QLD 2376; B. SEM image, anterior end, ventral surface of anterior chaetigers (arrows point at gland openings), AM W.44016, MI QLD 2340; C. Cross section of glandophorous chaetiger (arrows point at two VEGs), AM W.44018, MI QLD 2340. Abbreviations: coe = coelomic cavity, cu = cuticle, ep = epidermis, ltm = longitudinal musculature, mg = mid gut, sc = secretion cell, vnc = ventral nerve cord. Scale bars: A, B = 100 µm, C = 20 µm.

FIGURE 5 in Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes

FIGURE 5. Spio blakei (Blake & Kudenov, 1978): Examples for pigmentation patterns. A. Live complete specimen, dorsal view, MI QLD 2408; B. Specimen fixed in formalin, anterior end, dorsal view, AM W.44860, MI QLD 2439; C. Complete specimen fixed in formalin, ventral view, AM W.43371, MI QLD 2376. Scale bars: A, C = 1 mm, B = 0.5 mm. Photo: A—A. Semenov.

FIGURE 4 in Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes

FIGURE 4. Scolelepis (Scolelepis) kudenovi Hartmann-Schröder, 1981, holotype, ZMH P16497. A. Anterior end, dorsal view, first left parapodium removed, palps lost; B. Neuropodial bidentate hooded hooks from posterior chaetiger, note upright large apical tooth. Scale bars: A = 0.5 mm, B = 10 µm.

FIGURE 7 in Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes

FIGURE 7. Spio blakei (Blake & Kudenov, 1978): Studies on the ventral epidermal glands (VEGs). A. Ventral surface of middle chaetigers in a live specimen, pores of VEGs numbering four per chaetiger apparent, AM W.45396, MI QLD 2433; B. Methyl green staining pattern of ventral surface of middle chaetigers (arrows point at white dots being the location of the opening pores of VEGs), AM W.44860, MI QLD 2439; C. Cross section of glandophorous chaetiger (arrows point at two VEGs), AM W.44371, MI QLD 2376; D. SEM image, left half of middle chaetiger, ventral surface (arrows point at gland openings), AM W.44381, MI QLD 2376. Abbreviations: coe = coelomic cavity, cu = cuticle, ep = epidermis, ltm = longitudinal musculature, sc = secretion cell, vnc = ventral nerve cord. Scale bars: A = 200 µm, B = 100 µm, C, D = 50 µm. Photo: A—A. Semenov.

FIGURE 3. Scolelepis inversa n in Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes

FIGURE 3. Scolelepis inversa n. sp., holotype, AM W.44474, MI QLD 2396. A. Chaetigers 11–13, lateral view (note stout capillaries arranged in three rows in neuropodia); B. Neuropodial bidentate hooded hooks from chaetiger 33 (note upright apical tooth), accompanying capillaries not shown; C. Egg with ornamented egg envelope resembling honeycombs; D. Palp, thickened base (sheath) indicated by arrow, note irregular groups of cilia on the left side of the palp base; E. Palp ciliation and mucus secreting cells at the distal part (near tip), arrow indicates indistinct division between long and short transverse rows of cilia and mucus secreting cells; F. Detail of palp ciliation and arrangement of mucus secreting cells at the distal part. Scale bars: A, D = 100 µm, B, C = 20 µm, E 10 µm, F = 5 µm.

FIGURE 8 in Spionidae (Annelida: ' Polychaeta': Canalipalpata) from Lizard Island, Great Barrier Reef, Australia: the genera Malacoceros, Scolelepis, Spio, Microspio, and Spiophanes

FIGURE 8. Microspio granulata Blake & Kudenov, 1978: Example for pigmentation pattern. A. Holotype fixed in formalin, dorsal view of anterior part, NMV F42947, type locality in NSW, Australia; B. Specimen fixed in formalin, anterior end, dorsal view, AM W.44381, MI QLD 2376, Lizard Island area; C. Same in lateral view. Scale bars: A–C = 0.4 mm.

FIGURE 9 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 9. Dipolydora paracaulleryi sp. nov.: A. Unidentate falcate spine of chaetiger 5 with beak-like curved end bearing crest of bristles. B. Unidentate falcate spine of chaetiger 5 with accessory lateral flange and crest of bristles.—(ZSRO-P2304, paratype), Scale: A, B 10 µm.

FIGURE 8 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 8. Dipolydora paracaulleryi sp. nov.: A. Anterior end until chaetiger 6, dorsal view; palps lost; arrow indicating right nuchal organ. B. Anterior end, dorsolateral view; palps lost. C. Chaetigers 4 and 5, left side, lateral view. D. Chaetigers (3)4– 8(9), dorsal view; arrow indicating unidentate falcate spines at the left side in chaetiger 5, also note start of branchiae on chaetiger 7.—All from Great Meteor Seamount (A–D ZSRO-P2304, paratype), Scale: A, B, D 100 µm, C 30 µm.

FIGURE 6 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 6. Aonides selvagensis Brito, Nunez and Riera, 2006: A. Anterior end, dorsal view. B. First chaetiger with transverse ciliary band (tcb) and comma-shaped dorsal ciliated organs (dco), dorsal view. C. Third chaetiger with comma-shaped dco, tcb not clearly detectable, dorsal view. D. Fith chaetiger with tcb and dco, dorsal view. E. Hooded hook with pair of apical teeth above main fang from notopodium of a posterior chaetiger; arrows point at the two apical teeth.—All from Great Meteor Seamount (SMF 23332), Scale: A 50 µm, B–D 10 µm, E 1 µm.

FIGURE 14 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 14. Glandulospio orestes gen. et sp. nov.: A–I. Parapodium from chaetiger 1, 2, 3, 6, 7, 8, 9, 10, 18, all anterior view.—All from type locality (SMF 23336, paratype), Scale: all 0.1 mm.

FIGURE 4 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 4. Rows of holes present on the dorsum of some chaetigers of the branchiate region or adjacent to it (observed with SEM) in Aonidella cf. dayi Maciolek in López-Jamar, 1989: A. Schematic illustration of this character as observed in a single large specimen. B–D. Examples from SEM studies of this character in large specimen: anterior end until chaetiger 7 (B), chaetigers 12–14 (C), left side of chaetiger 13 (D). E. Infraspecific variation of this character based on a SEM study of 7 specimens 0.15–0.35 mm in width. Coding of counts: (number of lateral holes) / number of holes in the anterior row / number of holes in the posterior row.—A–D all from Irving seamount (ZSRO-P2354), E specimens from Irving seamount (SMF 23391, ZSRO-P2354, SMF 23389) and Great Meteor Seamount (ZSRO-P2348, ZMH-P27569, SMF 23380, ZSRO-P2350), Scale: B, C 100 µm, D 50 µm.

FIGURE 3 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 3. Aonidella cf. dayi Maciolek in López-Jamar, 1989: A. Anterior end, dorsolateral view; palps lost. B. Anterior end, dorsal view; palps lost; upper arrow indicating left nuchal organ, lower arrow indicating enlarged notopodial lamella on chaetiger two, left side. C. Anterior end, lateral view. D. Midbody region, interparapodial lateral pouches absent, dorsolateral view. E. Midbody region further posterior to image D, neuropodial hooks present in anterior row accompanied by posterior row of capillaries, anterolateral view. F. Hooded hook with pair of small, somewhat perpendicular apical teeth above main fang, from neuropodium of chaetiger 25. G. Posterior end, parapodia with cirriform postchaetal lamellae and hooks present in anterior rows in neuro- and notopodia, oblique view.—All from Great Meteor Seamount (A–C ZSRO-P2329, D–G ZMH- P27565), Scale: A–C, G 100 µm, D 40 µm, E 20 µm, F 1 µm.

FIGURE 1 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 1. Map of the study area with sampling locations: greater area (top), more detailed view of the study area (bottom); Savage Isl. = Savage Islands (Portuguese: Ilhas Selvagens).

FIGURE 16 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 16. Median-joining network of Aonidella cf. dayi COI haplotypes. Each haplotype is represented by a circle with its size being proportional to the number of individuals with the same haplotype in the data set. Colours indicate the origin of the haplotype: black (Litte Meteor Seamount), blue (Great Meteor Seamount), green (Irving Seamount), and yellow (Hyères Seamount). Median vectors (mv1-mv9) represent unsampled or extinct ancestral sequences. Numbers in parentheses at connecting branches show the number of mutational steps between haplotypes.

FIGURE 2 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 2. Aonidella cf. dayi Maciolek in López-Jamar, 1989: A. Anterior end, dorsal view (nuchal organs not illustrated since they are usually not discernable in preserved material by means of light microscopy). B. Anterior end, lateral view. C. Posterior end, lateral oblique view. D–H. Parapodia from chaetiger 1, 6, 9, 15, 35, all anterior view. I. Notopodial hooded hook from chaetiger 15. J. Neuropodial capillary chaeta from chaetiger 15.—All from Great Meteor Seamount, A–C, H (ZMH- P27565), D–G, I, J (ZSRO-P2343). Scale: A–C 0.2 mm, D–H 50 µm, I 2 µm, J 5 µm.

FIGURE 7 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 7. Dipolydora paracaulleryi sp. nov.: A. Anterior end, dorsal view (note chaetiger 5 not larger than adjacent chaetigers). B. Anterior end, ventral view (note bands of scattered dots after methyl green staining on chaetiger 5 and 6 encompassing glandular pouches ventrolaterally, compare Figure 10B). C. Anterior end, lateral view. D. Posterior end, dorsal view. E. Neuropodial hooded hook. F. Major spines of chaetiger 5, lateral and frontal view.—(ZSRO-P2304, paratype), Scale: A–B 0.2 mm, C 0.5 mm, D 100 µm, E 5 µm, F 20 µm.

FIGURE 10 in Spionidae (Polychaeta: Canalipalpata: Spionida) from seamounts in the NE Atlantic

FIGURE 10. Dipolydora paracaulleryi sp. nov.: Methyl green staining pattern of anterior end: A. Dorsal view, note scattered dots on posterior part of prostomium and on dorsum. B. Ventral view, note bands of scattered dots on chaetiger 6 and 7 (arrows). C. Glandular pouches of chaetiger 6 and 7 from lateral (arrow, compare Figure 7B).—(ZSRO-P2304, paratype), Scale: A–B 200 µm, C 50 µm.