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<mods:title id="C07F8B1A4898624492D280D115388C6F">Spionidae (Annelida) from Lizard Island, Great Barrier Reef, Australia: the genera Aonides, Dipolydora, Polydorella, Prionospio, Pseudopolydora, Rhynchospio, and Tripolydora</mods:title>
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<heading id="8D0FD14DFFE9FF96FF4AA0241A2CFE82" bold="true" box="[151,604,282,308]" fontSize="11" level="1" pageId="52" pageNumber="687" reason="1">
<taxonomicName id="11F81DA2FFE9FF96FF4AA0241A2CFE82" ID-CoL="58Z3D" authority="Woodwick, 1964" authorityName="Woodwick" authorityYear="1964" box="[151,604,282,308]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="52" pageNumber="687" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFE9FF96FF4AA0241A2CFE82" bold="true" box="[151,604,282,308]" pageId="52" pageNumber="687">
<emphasis id="E48CBA33FFE9FF96FF4AA02419F7FE82" bold="true" box="[151,391,282,308]" italics="true" pageId="52" pageNumber="687">Tripolydora spinosa</emphasis>
<bibRefCitation id="B2691BD0FFE9FF96FE52A0241A2CFE82" author="Woodwick" box="[399,604,282,308]" pageId="52" pageNumber="687" refString="Woodwick, K. H. (1964) Polydora and related genera (Annelida, Polychaeta) from Eniwetok, Majuro, and Bikini Atolls, Marshall Islands. Pacific Science, 18, 146 - 159." type="journal article" year="1964">Woodwick, 1964</bibRefCitation>
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<paragraph id="D6476621FFE9FF96FF4AA0031888FEE0" blockId="52.[151,604,282,342]" box="[151,248,317,342]" pageId="52" pageNumber="687">
(
<figureCitation id="4EC37AA4FFE9FF96FF42A0031881FEE0" box="[159,241,317,342]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="52" pageNumber="687">Fig. 35</figureCitation>
)
</paragraph>
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<subSubSection id="9EE235AAFFE9FF96FF4AA0401A67FE64" pageId="52" pageNumber="687" type="reference_group">
<paragraph id="D6476621FFE9FF96FF4AA0401A67FE64" blockId="52.[151,1436,382,466]" pageId="52" pageNumber="687">
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<taxonomicName id="11F81DA2FFE9FF96FF4AA0401A3BFE22" ID-CoL="58Z3D" authority="Woodwick, 1964: 155" authorityName="Woodwick" authorityPageNumber="155" authorityYear="1964" box="[151,587,382,405]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="52" pageNumber="687" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFE9FF96FF4AA0401914FE23" box="[151,356,382,405]" italics="true" pageId="52" pageNumber="687">Tripolydora spinosa</emphasis>
<treatmentCitation id="57594030FFE9FF96FEB6A0401A3BFE22" author="Woodwick" box="[363,587,382,404]" page="155" pageId="52" pageNumber="687" year="1964">
<bibRefCitation id="B2691BD0FFE9FF96FEB6A0401A6BFE22" author="Woodwick" box="[363,539,382,404]" pageId="52" pageNumber="687" refString="Woodwick, K. H. (1964) Polydora and related genera (Annelida, Polychaeta) from Eniwetok, Majuro, and Bikini Atolls, Marshall Islands. Pacific Science, 18, 146 - 159." type="journal article" year="1964">Woodwick, 1964</bibRefCitation>
: 155
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156, fig. 4 (69);
<treatmentCitation id="57594030FFE9FF96FCD1A0401BC6FE22" author="Reish" box="[780,950,382,404]" page="222" pageId="52" pageNumber="687" year="1968">
<bibRefCitation id="B2691BD0FFE9FF96FCD1A0401BF3FE22" author="Reish" box="[780,899,382,404]" pageId="52" pageNumber="687" refString="Reish, D. J. (1968) The polychaetous annelids of the Marshall Islands. Pacific Science, 22, 208 - 231." type="journal article" year="1968">Reish 1968</bibRefCitation>
: 222
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;
<treatmentCitation id="57594030FFE9FF96FC1CA0401CB7FE22" author="Kohn" box="[961,1223,382,404]" page="700" pageId="52" pageNumber="687" year="1973">
<bibRefCitation id="B2691BD0FFE9FF96FC1CA0401CE4FE22" author="Kohn" box="[961,1172,382,404]" pageId="52" pageNumber="687" refString="Kohn, A. J. &amp; Lloyd, M. C. (1973) Marine polychaete annelids of Easter Island. Internationale Revue der Gesamten Hydrobiologie, 58, 691 - 712. http: // dx. doi. org / 10.1002 / iroh. 19730580508" type="journal article" year="1973">Kohn &amp; Lloyd 1973</bibRefCitation>
: 700
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;
<treatmentCitation id="57594030FFE9FF96FB0FA0401941FE05" author="Blake" page="352" pageId="52" pageNumber="687" year="1981">
<bibRefCitation id="B2691BD0FFE9FF96FB0FA040188DFE05" author="Blake" pageId="52" pageNumber="687" refString="Blake, J. A. &amp; Woodwick, K. H. (1981) The morphology of Tripolydora spinosa Woodwick (Polychaeta: Spionidae): an application of the scanning electron microscope to polychaete systematics. Proceedings of the Biological Society of Washington, 94, 352 - 362." type="journal article" year="1981">Blake &amp; Woodwick 1981</bibRefCitation>
: 352
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362, figs 15;
<treatmentCitation id="57594030FFE9FF96FE0AA0A31AF3FE05" author="Ward" box="[471,643,413,435]" page="730" pageId="52" pageNumber="687" year="1981">
<bibRefCitation id="B2691BD0FFE9FF96FE0AA0A31A3DFE05" author="Ward" box="[471,589,413,435]" pageId="52" pageNumber="687" refString="Ward, L. A. (1981) Spionidae (Polychaeta: Annelida) from Hawaii, with descriptions of five new species. Proceedings of the Biological Society of Washington, 94, 713 - 730." type="journal article" year="1981">Ward 1981</bibRefCitation>
: 730
</treatmentCitation>
; 1987: 368369, fig.
<date id="A24640E1FFE9FF96FCBBA0A31BFEFE05" box="[870,910,413,435]" pageId="52" pageNumber="687">3.II.</date>
<date id="A24640E1FFE9FF96FC53A0A31BC5FE05" box="[910,949,413,435]" pageId="52" pageNumber="687" value="1948-01">I48</date>
;
<treatmentCitation id="57594030FFE9FF96FC1FA0A31C83FE05" author="Hartmann-Schroder" box="[962,1267,413,435]" page="70" pageId="52" pageNumber="687" year="1992">
<bibRefCitation id="B2691BD0FFE9FF96FC1FA0A31CBBFE05" author="Hartmann-Schroder" box="[962,1227,413,435]" pageId="52" pageNumber="687" refString="Hartmann-Schroder, G. (1992) Zur Polychaetenfauna der Polynesischen Inseln Huahine (Gesellschaftsinseln) und Rangiroa (Tuamotu-Inseln). Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 89, 49 - 84." type="journal article" year="1992">Hartmann-Schröder 1992</bibRefCitation>
: 70
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71, figs 7275;
<treatmentCitation id="57594030FFE9FF96FF1AA08219E0FE64" author="Williams" box="[199,400,444,466]" page="457" pageId="52" pageNumber="687" year="2001">
<bibRefCitation id="B2691BD0FFE9FF96FF1AA082192FFE64" author="Williams" box="[199,351,444,466]" pageId="52" pageNumber="687" refString="Williams, J. D. (2001) Polydora and related genera associated with hermit crabs from the Indo-West Pacific (Polydora: Spionidae), with descriptions of two new species and a second polydorid egg predator of hermit crabs. Pacific Science, 55, 429 - 565. http: // dx. doi. org / 10.1353 / psc. 2001.0037" type="journal article" year="2001">Williams 2001</bibRefCitation>
: 457
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459, fig. 15.
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</paragraph>
</subSubSection>
<caption id="828736A9FFE9FF96FF4AA7871C20F8DE" httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="52" pageNumber="687" targetBox="[188,1398,515,1699]" targetPageId="52">
<paragraph id="D6476621FFE9FF96FF4AA7871C20F8DE" blockId="52.[151,1435,1721,1896]" pageId="52" pageNumber="687">
<emphasis id="E48CBA33FFE9FF96FF4AA787196FF979" bold="true" box="[151,287,1721,1743]" pageId="52" pageNumber="687">FIGURE 35.</emphasis>
<taxonomicName id="11F81DA2FFE9FF96FEF9A787199FF979" box="[292,495,1721,1743]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="52" pageNumber="687" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFE9FF96FEF9A787199FF979" box="[292,495,1721,1743]" italics="true" pageId="52" pageNumber="687">Tripolydora spinosa</emphasis>
</taxonomicName>
. AH—AM W.47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; DF. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; JN. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger.
</paragraph>
</caption>
<subSubSection id="9EE235AAFFE8FF97FF4AA1A9199FF9C3" pageId="53" pageNumber="688" type="materials_examined">
<paragraph id="D6476621FFE8FF97FF4AA1A91BECFF06" blockId="53.[151,1437,151,2013]" box="[151,924,151,176]" pageId="53" pageNumber="688">
<emphasis id="E48CBA33FFE8FF97FF4AA1A91A6EFF06" bold="true" box="[151,542,151,176]" pageId="53" pageNumber="688">Material examined. Queensland:</emphasis>
AM W.47872, MI QLD 2379 (1).
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA1821C06FE66" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
<emphasis id="E48CBA33FFE8FF97FF1AA18219DAFF63" bold="true" box="[199,426,188,213]" pageId="53" pageNumber="688">Adult morphology.</emphasis>
Single specimen in two fragments, comprising 16 anterior chaetigers
<quantity id="1100CBC4FFE8FF97FB17A1821D40FF62" box="[1226,1328,188,213]" metricMagnitude="-3" metricUnit="m" metricValue="1.75" pageId="53" pageNumber="688" unit="mm" value="1.75">1.75 mm</quantity>
long,
<quantity id="1100CBC4FFE8FF97FAA4A18218B3FF41" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="53" pageNumber="688" unit="mm" value="0.3">0.3 mm</quantity>
wide and 15 posterior chaetigers about
<quantity id="1100CBC4FFE8FF97FD61A1E11B6BFF41" box="[700,795,223,248]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="53" pageNumber="688" unit="mm" value="1.5">1.5 mm</quantity>
long. Dark paired spots (possibly remains of larval melanophores) present on dorso-lateral sides from chaetiger 3 to end of anterior fragment; ochre pigment present in distal part of ventral pygidial cirri. Prostomium rounded anteriorly, extending posteriorly to end of chaetiger 3 as a low indistinct caruncle. Two pairs of dark eyes (appearing dark reddish in formalin-fixed specimen) arranged trapezoidally. Occipital antenna absent. Nuchal organs two pairs of wide ciliary bands comprising inner pair of almost straight longitudinal bands situated on sides of low indistinct caruncle, and longer outer pair with anterior part oriented longitudinally and posterior part curved inwards (
<figureCitation id="4EC37AA4FFE8FF97FC85A0891BDAFE66" box="[856,938,439,464]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
A). Palps missing.
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA0E21DEDFD7B" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
Chaetiger 1 with short capillaries and low postchaetal lamellae in neuropodia; notopodia lacking. Chaetigers 2 and 3 with slender capillaries in both rami. Chaetigers 4 and 6 with dorsal superior and posterior-row notochaetae and neurochaetae slender capillaries (
<figureCitation id="4EC37AA4FFE8FF97FDD1A31A1A2EFD8B" box="[524,606,548,573]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
E, F). Chaetiger 4 anterior-row notochaetae capillaries with swollen wing (
<figureCitation id="4EC37AA4FFE8FF97FF42A3791884FDD6" box="[159,244,583,608]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
D); similar capillaries with less swollen wing also present in anterior row in notopodia on chaetiger 6. Posterior-row capillary notochaetae on chaetigers 7 and 8 with ribbed structures oriented obliquely on wing surface (
<figureCitation id="4EC37AA4FFE8FF97FF42A3B11880FD1E" box="[159,240,655,680]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">
Fig.
<date id="A24640E1FFE8FF97FF0FA3B11880FD1E" box="[210,240,655,680]" pageId="53" pageNumber="688" value="1935-01">35</date>
</figureCitation>
I). Notopodia on middle chaetigers with 510 slender capillaries and small postchaetal lamellae; notopodia on posterior chaetigers with bundles of 1520 separate long needle-like spines and small postchaetal lamellae (
<figureCitation id="4EC37AA4FFE8FF97FAF1A38A1D0CFD7B" box="[1324,1404,692,717]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
C).
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA3E91AD7FC13" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
Chaetiger 5 slightly larger than chaetigers 4 and 6, with noto- and neuropodial postchaetal lamellae same as those on chaetigers 4 and 6. Notochaetae comprising 23 long dorsal superior capillaries, four shorter posteriorrow capillaries, both kinds of chaetae same but fewer than those on chaetigers 4 and 6, and four anterior-row heavy acicular spines with terminal tooth flanked on one side by two wide knobs (
<figureCitation id="4EC37AA4FFE8FF97FC3EA27A1C43FCEB" box="[995,1075,836,861]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
G, H). Neurochaetae comprising two vertical rows of capillaries (four capillaries in each row) and two shorter inferior capillary chaetae, all capillaries same as those on chaetigers 4 and 6.
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA2911C76FBCA" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
Hooks in neuropodia from chaetiger 9, up to five in a series, accompanied by 24 short winged capillaries arranged in a vertical row in front of hook row (
<figureCitation id="4EC37AA4FFE8FF97FD11A2EA1B51FC5B" box="[716,801,980,1005]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
J), 14 hair-like capillaries alternating with hooks (
<figureCitation id="4EC37AA4FFE8FF97FAB2A2EA18C4FBA6" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
M), and 12 inferior chaetae situated below hook row. Inferior chaetae in anterior hook-bearing segments winged capillaries (
<figureCitation id="4EC37AA4FFE8FF97FEAEA52219B4FB83" box="[371,452,1052,1077]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
N), on chaetigers 1415 gradually transformed into sabre chaetae with narrow wing and fine granulation on distal part (
<figureCitation id="4EC37AA4FFE8FF97FE2FA5011A34FBEE" box="[498,580,1087,1112]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
<collectingCountry id="AEEF26B1FFE8FF97FD99A5011A2AFBEE" box="[580,602,1087,1112]" name="Iceland" pageId="53" pageNumber="688">O</collectingCountry>
). Hooks tridentate, with two upper teeth arranged in line above main fang, with only outer hood, shaft slightly curved, without constriction (
<figureCitation id="4EC37AA4FFE8FF97FCAFA55A1BB3FBCB" box="[882,963,1124,1149]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
K, L).
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA5B9190BFABB" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
Branchiae from chaetiger 2 to almost end of body, short on anterior chaetigers, full-sized from chaetiger 7 (
<figureCitation id="4EC37AA4FFE8FF97FAB2A5B918C5FB73" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
A). Branchiae free from notopodial postchaetal lamellae, flattened, with surfaces oriented parallel to body axis, with longitudinal ciliation on inner surface. Afferent and efferent arms of branchial blood loop not interconnected by radial capillaries.
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA4291D7EFA76" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
Pygidium small, with one pair of thin dorsal cirri and one pair of thicker and shorter ventral bulbs (
<figureCitation id="4EC37AA4FFE8FF97FAC1A4291D1EFA86" box="[1308,1390,1303,1328]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
C). Paired glandular organs arranged in transverse lines on ventral side of anterior chaetigers (
<figureCitation id="4EC37AA4FFE8FF97FB7DA4021C86FAE3" box="[1184,1270,1340,1365]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="53" pageNumber="688">Fig. 35</figureCitation>
B). Apparently one pair of organs present on each of chaetigers 2 and 3; two pairs of organs present on each chaetiger from chaetiger 4 to about chaetiger 10; organs indistinct on succeeding chaetigers. Each organ appearing as a round pore about 3 µm in diameter, sided by 1015 cells forming a rosette-like structure up to 25 µm in diameter.
</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA4F21C0AFA53" blockId="53.[151,1437,151,2013]" box="[199,1146,1484,1509]" pageId="53" pageNumber="688">Glandular pouches in neuropodia from chaetiger 1, very small in anterior chaetigers.</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA4D11AB5F9BE" blockId="53.[151,1437,151,2013]" box="[199,709,1519,1544]" pageId="53" pageNumber="688">Digestive tract without gizzard-like structure.</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA72A1AB0F99B" blockId="53.[151,1437,151,2013]" box="[199,704,1556,1581]" pageId="53" pageNumber="688">Main dorsal blood vessel without heart body.</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA7091A14F9E6" blockId="53.[151,1437,151,2013]" box="[199,612,1591,1616]" pageId="53" pageNumber="688">Nephridia from chaetiger 4 onwards.</paragraph>
<paragraph id="D6476621FFE8FF97FF1AA762199FF9C3" blockId="53.[151,1437,151,2013]" box="[199,495,1628,1653]" pageId="53" pageNumber="688">
<emphasis id="E48CBA33FFE8FF97FF1AA7621903F9C3" bold="true" box="[199,371,1628,1653]" pageId="53" pageNumber="688">Reproduction.</emphasis>
Unknown.
</paragraph>
</subSubSection>
<subSubSection id="9EE235AAFFE8FF94FF1AA7411CF4FCA2" lastPageId="54" lastPageNumber="689" pageId="53" pageNumber="688" type="discussion">
<paragraph id="D6476621FFE8FF97FF1AA7411B8AF86B" blockId="53.[151,1437,151,2013]" pageId="53" pageNumber="688">
<emphasis id="E48CBA33FFE8FF97FF1AA741194BF92E" bold="true" box="[199,315,1663,1688]" pageId="53" pageNumber="688">Remarks.</emphasis>
<taxonomicName id="11F81DA2FFE8FF97FE99A7411A5AF92E" box="[324,554,1663,1688]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="53" pageNumber="688" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFE8FF97FE99A7411A5AF92E" box="[324,554,1663,1688]" italics="true" pageId="53" pageNumber="688">Tripolydora spinosa</emphasis>
</taxonomicName>
was originally described from the rocky intertidal on Eniwetok Atoll in the
<collectingCountry id="AEEF26B1FFE8FF97FF4AA79A1923F90B" box="[151,339,1700,1725]" name="Marshall Islands" pageId="53" pageNumber="688">Marshall Islands</collectingCountry>
by
<bibRefCitation id="B2691BD0FFE8FF97FE5CA79A1A20F90B" author="Woodwick" box="[385,592,1700,1725]" pageId="53" pageNumber="688" refString="Woodwick, K. H. (1964) Polydora and related genera (Annelida, Polychaeta) from Eniwetok, Majuro, and Bikini Atolls, Marshall Islands. Pacific Science, 18, 146 - 159." type="journal article" year="1964">Woodwick (1964)</bibRefCitation>
. It was later recorded from the tropical Pacific and western Indian Ocean (
<bibRefCitation id="B2691BD0FFE8FF97FF43A7F91959F956" author="Reish" box="[158,297,1735,1760]" pageId="53" pageNumber="688" refString="Reish, D. J. (1968) The polychaetous annelids of the Marshall Islands. Pacific Science, 22, 208 - 231." type="journal article" year="1968">Reish 1968</bibRefCitation>
;
<bibRefCitation id="B2691BD0FFE8FF97FEE1A7F91A49F956" author="Kohn" box="[316,569,1735,1760]" pageId="53" pageNumber="688" refString="Kohn, A. J. &amp; Lloyd, M. C. (1973) Marine polychaete annelids of Easter Island. Internationale Revue der Gesamten Hydrobiologie, 58, 691 - 712. http: // dx. doi. org / 10.1002 / iroh. 19730580508" type="journal article" year="1973">Kohn &amp; Lloyd 1973</bibRefCitation>
;
<bibRefCitation id="B2691BD0FFE8FF97FD91A7F91AA1F956" author="Ward" box="[588,721,1735,1760]" pageId="53" pageNumber="688" refString="Ward, L. A. (1981) Spionidae (Polychaeta: Annelida) from Hawaii, with descriptions of five new species. Proceedings of the Biological Society of Washington, 94, 713 - 730." type="journal article" year="1981">Ward 1981</bibRefCitation>
;
<bibRefCitation id="B2691BD0FFE8FF97FD39A7F61B6FF956" author="Ward" box="[740,799,1736,1760]" pageId="53" pageNumber="688" refString="Ward, L. A. (1987) Family Spionidae. [In: J. H. Bailey-Brock: Phylum Annelida.] In: D. M. Devaney &amp; L. G. Eldredge (Eds.), Bishop Museum Press, Honolulu, pp. 340 - 369." type="book chapter" year="1987">1987</bibRefCitation>
;
<bibRefCitation id="B2691BD0FFE8FF97FCEFA7F91C2AF956" author="Hartmann-Schroder" box="[818,1114,1735,1760]" pageId="53" pageNumber="688" refString="Hartmann-Schroder, G. (1992) Zur Polychaetenfauna der Polynesischen Inseln Huahine (Gesellschaftsinseln) und Rangiroa (Tuamotu-Inseln). Mitteilungen aus dem Hamburgischen Zoologischen Museum und Institut, 89, 49 - 84." type="journal article" year="1992">Hartmann-Schröder 1992</bibRefCitation>
;
<bibRefCitation id="B2691BD0FFE8FF97FBB1A7F91D6CF956" author="Williams" box="[1132,1308,1735,1760]" pageId="53" pageNumber="688" refString="Williams, J. D. (2001) Polydora and related genera associated with hermit crabs from the Indo-West Pacific (Polydora: Spionidae), with descriptions of two new species and a second polydorid egg predator of hermit crabs. Pacific Science, 55, 429 - 565. http: // dx. doi. org / 10.1353 / psc. 2001.0037" type="journal article" year="2001">Williams 2001</bibRefCitation>
).
<bibRefCitation id="B2691BD0FFE8FF97FAEAA7F91915F8B2" author="Blake" pageId="53" pageNumber="688" refString="Blake, J. A. &amp; Woodwick, K. H. (1981) The morphology of Tripolydora spinosa Woodwick (Polychaeta: Spionidae): an application of the scanning electron microscope to polychaete systematics. Proceedings of the Biological Society of Washington, 94, 352 - 362." type="journal article" year="1981">Blake &amp; Woodwick (1981)</bibRefCitation>
recorded material from the
<collectingCountry id="AEEF26B1FFE8FF97FD69A7D21B3BF8B3" box="[692,843,1772,1797]" name="Cook Islands" pageId="53" pageNumber="688">Cook Islands</collectingCountry>
and for the first time described the unique ribbed capillaries in the notopodia of chaetigers 710 and established homology of the modified chaetae of chaetigers 4 and 5 with corresponding groups of chaetae on chaetigers
<date id="A24640E1FFE8FF97FCF9A60A1BB0F8FB" box="[804,960,1844,1869]" pageId="53" pageNumber="688" value="2010-03-02" valueMax="2010-06-02" valueMin="2010-03-02">23 and 610</date>
.
<bibRefCitation id="B2691BD0FFE8FF97FC16A60A1CF2F8FA" author="Williams" box="[971,1154,1844,1869]" pageId="53" pageNumber="688" refString="Williams, J. D. (2001) Polydora and related genera associated with hermit crabs from the Indo-West Pacific (Polydora: Spionidae), with descriptions of two new species and a second polydorid egg predator of hermit crabs. Pacific Science, 55, 429 - 565. http: // dx. doi. org / 10.1353 / psc. 2001.0037" type="journal article" year="2001">Williams (2001)</bibRefCitation>
examined a single living specimen from the
<collectingCountry id="AEEF26B1FFE8FF97FEACA669199FF8C6" box="[369,495,1879,1904]" name="Philippines" pageId="53" pageNumber="688">Philippines</collectingCountry>
and described black pigmentation on the palps, prostomium, and dorsal side of the anterior and posterior chaetigers. He noted that this pigmentation disappeared after fixation. This is probably why this kind of pigmentation was not reported by other authors and also not observed in the present study. Reproductive biology and larval development of
<taxonomicName id="11F81DA2FFE8FF97FD60A6FB1B5CF86A" box="[701,812,1989,2012]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="53" pageNumber="688" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFE8FF97FD60A6FB1B5CF86A" box="[701,812,1989,2012]" italics="true" pageId="53" pageNumber="688">T. spinosa</emphasis>
</taxonomicName>
remain unknown.
</paragraph>
<paragraph id="D6476621FFEBFF94FF1AA1A91CF4FCA2" blockId="54.[151,1437,151,1149]" pageId="54" pageNumber="689">
The single specimen from Yonge Reef examined in the present study after fixation appears similar to
<taxonomicName id="11F81DA2FFEBFF94FA5AA1A7189DFF62" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FA5AA1A7189DFF62" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
described by
<bibRefCitation id="B2691BD0FFEBFF94FE4CA1821A2EFF63" author="Woodwick" box="[401,606,188,213]" pageId="54" pageNumber="689" refString="Woodwick, K. H. (1964) Polydora and related genera (Annelida, Polychaeta) from Eniwetok, Majuro, and Bikini Atolls, Marshall Islands. Pacific Science, 18, 146 - 159." type="journal article" year="1964">Woodwick (1964)</bibRefCitation>
and other authors, and is referred to this species. Glandular pouches in neuropodia, ventral glands on anterior chaetigers, and nephridia are described herein for the first time for this spionid. The nuchal organs described in the present study, however, differ from those described by previous authors. Remarkably, fine epithelium of fragile worms is easy to destroy and dorsal ciliation of worms often appears indistinct, especially after fixation.
<bibRefCitation id="B2691BD0FFEBFF94FD54A0721B25FED3" author="Woodwick" box="[649,853,332,357]" pageId="54" pageNumber="689" refString="Woodwick, K. H. (1964) Polydora and related genera (Annelida, Polychaeta) from Eniwetok, Majuro, and Bikini Atolls, Marshall Islands. Pacific Science, 18, 146 - 159." type="journal article" year="1964">Woodwick (1964)</bibRefCitation>
noted the caruncle extending to end of chaetiger 3 and did not provide any comment on the morphology of the nuchal organs.
<bibRefCitation id="B2691BD0FFEBFF94FC39A0511D02FE3E" author="Blake" box="[996,1394,367,392]" pageId="54" pageNumber="689" refString="Blake, J. A. &amp; Woodwick, K. H. (1981) The morphology of Tripolydora spinosa Woodwick (Polychaeta: Spionidae): an application of the scanning electron microscope to polychaete systematics. Proceedings of the Biological Society of Washington, 94, 352 - 362." type="journal article" year="1981">Blake &amp; Woodwick (1981: fig. 1A)</bibRefCitation>
did not illustrate nuchal organs with SEM but depicted them as a pair of longitudinal bands of cilia on the sides of a wide caruncle extending to middle (until nototroch) of chaetiger 3.
<bibRefCitation id="B2691BD0FFEBFF94FC77A0891CD0FE66" author="Williams" box="[938,1184,439,464]" pageId="54" pageNumber="689" refString="Williams, J. D. (2001) Polydora and related genera associated with hermit crabs from the Indo-West Pacific (Polydora: Spionidae), with descriptions of two new species and a second polydorid egg predator of hermit crabs. Pacific Science, 55, 429 - 565. http: // dx. doi. org / 10.1353 / psc. 2001.0037" type="journal article" year="2001">Williams (2001: 457)</bibRefCitation>
noted broad caruncle reaching end of chaetiger 2 but depicted nuchal organs as a pair of longitudinal bands of cilia on sides of caruncle extending to end of chaetiger 3 or even middle of chaetiger 4 (
<bibRefCitation id="B2691BD0FFEBFF94FC96A0C11C10FDAE" author="Williams" box="[843,1120,511,536]" pageId="54" pageNumber="689" refString="Williams, J. D. (2001) Polydora and related genera associated with hermit crabs from the Indo-West Pacific (Polydora: Spionidae), with descriptions of two new species and a second polydorid egg predator of hermit crabs. Pacific Science, 55, 429 - 565. http: // dx. doi. org / 10.1353 / psc. 2001.0037" type="journal article" year="2001">Williams 2001: fig. 15A</bibRefCitation>
). This kind of nuchal organs is typical for polydorins and might have been in mind of the authors during interpretation of an indistinct structure. Nuchal organs as two pairs of wide ciliary bands comprising inner pair of almost straight longitudinal bands situated on sides of low and narrow indistinct caruncle, and a longer outer pair with anterior part oriented longitudinally and posterior part curved inwards are described in
<taxonomicName id="11F81DA2FFEBFF94FCA2A3AF1B82FD1E" box="[895,1010,657,680]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FCA2A3AF1B82FD1E" box="[895,1010,657,680]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
for the first time in the present study (
<figureCitation id="4EC37AA4FFEBFF94FF42A38A1884FD7B" box="[159,244,692,717]" captionStart="FIGURE 35" captionStartId="52.[151,250,1721,1743]" captionTargetBox="[188,1398,515,1699]" captionTargetId="figure@52.[188,1398,515,1699]" captionTargetPageId="52" captionText="FIGURE 35. Tripolydora spinosa. A H—AM W. 47872. A. Anterior end in dorsal view with palps missing; B. Same in ventral view; C. Posterior end, left lateral view; D F. Notochaetae of chaetiger 4; D. Anterior-row capillary chaeta; E. Posterior-row capillary chaeta; F. Superior-group capillary chaeta; G, H. Notopodial anterior-row heavy aciculate spines of chaetiger 5; I. Posterior-row capillary notochaeta of chaetiger 7; J N. Neurochaetae of chaetiger 7; J. Anterior-row winged capillary chaeta; K. Tridentate hooded hook in lateral view; L. Same in frontal view; M. Alimbate hair-like alternating capillary chaeta; N. Inferior winged capillary chaeta; O. Inferior sabre chaeta from a neuropodium of a posterior chaetiger." httpUri="https://zenodo.org/record/235941/files/figure.png" pageId="54" pageNumber="689">Fig. 35</figureCitation>
A). Same organs were also observed in other specimens of
<taxonomicName id="11F81DA2FFEBFF94FC7EA38B1C65FD7A" box="[931,1045,693,716]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FC7EA38B1C65FD7A" box="[931,1045,693,716]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
from other regions (Radashevsky unpublished). These nuchal organs appear similar to J-shaped organs typical for adult
<taxonomicName id="11F81DA2FFEBFF94FB5EA3E71C85FD46" box="[1155,1269,729,752]" class="Polychaeta" family="Spionidae" genus="Microspio" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="genus">
<emphasis id="E48CBA33FFEBFF94FB5EA3E71C85FD46" box="[1155,1269,729,752]" italics="true" pageId="54" pageNumber="689">Microspio</emphasis>
</taxonomicName>
and
<taxonomicName id="11F81DA2FFEBFF94FAEEA3E61D15FD59" box="[1331,1381,728,751]" class="Polychaeta" family="Spionidae" genus="Spio" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="genus">
<emphasis id="E48CBA33FFEBFF94FAEEA3E61D15FD59" box="[1331,1381,728,751]" italics="true" pageId="54" pageNumber="689">Spio</emphasis>
</taxonomicName>
(see
<bibRefCitation id="B2691BD0FFEBFF94FF4AA3C21958FCA2" author="Jelsing" box="[151,296,764,789]" pageId="54" pageNumber="689" refString="Jelsing, J. (2002) Ultrastructural investigations on the cephalic and metameric nuchal organs of Spio cf. filicornis (Polychaeta, Spionidae). Zoomorphology, 121, 213 - 220. http: // dx. doi. org / 10.1007 / s 00435 - 002 - 0060 - 1" type="journal article" year="2002">Jelsing 2002</bibRefCitation>
: fig. 2A, 2003: 2G;
<bibRefCitation id="B2691BD0FFEBFF94FDDAA3C21ACEFCA2" author="Bick" box="[519,702,764,789]" pageId="54" pageNumber="689" refString="Bick, A., Otte, K. &amp; Meißner, K. (2010) A contribution to the taxonomy of Spio (Spionidae, Polychaeta, Annelida) occurring in the North and Baltic Seas, with a key to species recorded in this area. Marine Biodiversity, 40, 161 - 180. http: // dx. doi. org / 10.1007 / s 12526 - 010 - 0040 - 5" type="journal article" year="2010">
Bick
<emphasis id="E48CBA33FFEBFF94FD9EA3C31A04FCA3" box="[579,628,764,789]" italics="true" pageId="54" pageNumber="689">et al</emphasis>
. 2010
</bibRefCitation>
: fig. 9;
<bibRefCitation id="B2691BD0FFEBFF94FCCEA3C21B9AFCA2" author="Radashevsky" box="[787,1002,764,789]" pageId="54" pageNumber="689" refString="Radashevsky, V. I. (2012) Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology. Zootaxa, 3152, 1 - 35." type="book chapter" year="2012">Radashevsky 2012</bibRefCitation>
: figs 2E, 4B).
</paragraph>
</subSubSection>
<subSubSection id="9EE235AAFFEBFF94FF1AA2211C95FBEE" pageId="54" pageNumber="689" type="reference_group">
<paragraph id="D6476621FFEBFF94FF1AA2211B40FB83" blockId="54.[151,1437,151,1149]" pageId="54" pageNumber="689">
Adult
<taxonomicName id="11F81DA2FFEBFF94FECDA21F19F1FC8E" ID-CoL="58Z3D" box="[272,385,801,824]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FECDA21F19F1FC8E" box="[272,385,801,824]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
are unusual among polydorins in having tridentate instead of bidentate hooks, anterior-row capillaries and alternating capillaries accompanying hooks, and sabre chaetae in neuropodia. The heavy acicular spines of chaetiger 5 positioned in the anterior row in notopodia of
<taxonomicName id="11F81DA2FFEBFF94FC5CA2571B82FC36" ID-CoL="58Z3D" box="[897,1010,873,896]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FC5CA2571B82FC36" box="[897,1010,873,896]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
are not homologs of the falcate spines positioned in the posterior-row in notopodia of Polydorini members (see
<bibRefCitation id="B2691BD0FFEBFF94FC3CA2B21D3AFC12" author="Radashevsky" box="[993,1354,908,933]" pageId="54" pageNumber="689" refString="Radashevsky, V. I. &amp; Fauchald, K. (2000) Chaetal arrangement and homology in spionids (Polychaeta: Spionidae). Bulletin of Marine Science, 67, 13 - 23." type="book chapter" year="2000">Radashevsky &amp; Fauchald 2000</bibRefCitation>
: fig. 4;
<bibRefCitation id="B2691BD0FFEBFF94FF4AA291191EFC7E" author="Radashevsky" box="[151,366,943,968]" pageId="54" pageNumber="689" refString="Radashevsky, V. I. (2012) Spionidae (Annelida) from shallow waters around the British Islands: an identification guide for the NMBAQC Scheme with an overview of spionid morphology and biology. Zootaxa, 3152, 1 - 35." type="book chapter" year="2012">Radashevsky 2012</bibRefCitation>
). The nuchal organs and ventral glands described herein for
<taxonomicName id="11F81DA2FFEBFF94FBD2A28F1C0EFC7E" ID-CoL="58Z3D" box="[1039,1150,945,968]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FBD2A28F1C0EFC7E" box="[1039,1150,945,968]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
are typical for
<taxonomicName id="11F81DA2FFEBFF94FAF7A28F1DECFC7E" ID-CoL="84QF2" box="[1322,1436,945,968]" class="Polychaeta" family="Spionidae" genus="Microspio" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="genus">
<emphasis id="E48CBA33FFEBFF94FAF7A28F1DECFC7E" box="[1322,1436,945,968]" italics="true" pageId="54" pageNumber="689">Microspio</emphasis>
</taxonomicName>
and
<taxonomicName id="11F81DA2FFEBFF94FF11A2EB188EFC5A" ID-CoL="84TRT" box="[204,254,981,1004]" class="Polychaeta" family="Spionidae" genus="Spio" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="genus">
<emphasis id="E48CBA33FFEBFF94FF11A2EB188EFC5A" box="[204,254,981,1004]" italics="true" pageId="54" pageNumber="689">Spio</emphasis>
</taxonomicName>
(for ventral glands see Rößger
<emphasis id="E48CBA33FFEBFF94FD5BA2EB1ACDFC5B" box="[646,701,980,1005]" italics="true" pageId="54" pageNumber="689">et al</emphasis>
. 2015). All these characters support the hypothesis of closer relationship of
<taxonomicName id="11F81DA2FFEBFF94FE91A2C719B3FBA6" ID-CoL="58Z3D" box="[332,451,1017,1040]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FE91A2C719B3FBA6" box="[332,451,1017,1040]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
to
<taxonomicName id="11F81DA2FFEBFF94FE2EA2C71A15FBA6" ID-CoL="84QF2" box="[499,613,1017,1040]" class="Polychaeta" family="Spionidae" genus="Microspio" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="genus">
<emphasis id="E48CBA33FFEBFF94FE2EA2C71A15FBA6" box="[499,613,1017,1040]" italics="true" pageId="54" pageNumber="689">Microspio</emphasis>
</taxonomicName>
and
<taxonomicName id="11F81DA2FFEBFF94FD7AA2C61AA9FBB9" ID-CoL="84TRT" box="[679,729,1016,1039]" class="Polychaeta" family="Spionidae" genus="Spio" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="genus">
<emphasis id="E48CBA33FFEBFF94FD7AA2C61AA9FBB9" box="[679,729,1016,1039]" italics="true" pageId="54" pageNumber="689">Spio</emphasis>
</taxonomicName>
than to polydorins. This hypothesis will be estimated in a phylogenetic analysis of spiomorph polychaetes elsewhere.
</paragraph>
<paragraph id="D6476621FFEBFF94FF1AA5011C95FBEE" blockId="54.[151,1437,151,1149]" box="[199,1253,1087,1112]" pageId="54" pageNumber="689">
<emphasis id="E48CBA33FFEBFF94FF1AA501195AFBEE" bold="true" box="[199,298,1087,1112]" pageId="54" pageNumber="689">Habitat.</emphasis>
In this study, a single individual of
<taxonomicName id="11F81DA2FFEBFF94FD66A57F1B5DFBEE" ID-CoL="58Z3D" box="[699,813,1089,1112]" class="Polychaeta" family="Spionidae" genus="Tripolydora" kingdom="Animalia" order="Spionida" pageId="54" pageNumber="689" phylum="Annelida" rank="species" species="spinosa">
<emphasis id="E48CBA33FFEBFF94FD66A57F1B5DFBEE" box="[699,813,1089,1112]" italics="true" pageId="54" pageNumber="689">T. spinosa</emphasis>
</taxonomicName>
was found in coral sand at
<quantity id="1100CBC4FFEBFF94FB82A57E1CE9FBE1" box="[1119,1177,1088,1112]" metricMagnitude="1" metricUnit="m" metricValue="1.0" pageId="54" pageNumber="689" unit="m" value="10.0">10 m</quantity>
depth.
</paragraph>
</subSubSection>
<subSubSection id="9EE235AAFFEBFF94FF1AA55A1DFBFBCB" box="[199,1419,1124,1149]" pageId="54" pageNumber="689" type="distribution">
<paragraph id="D6476621FFEBFF94FF1AA55A1DFBFBCB" blockId="54.[151,1437,151,1149]" box="[199,1419,1124,1149]" pageId="54" pageNumber="689">
<emphasis id="E48CBA33FFEBFF94FF1AA55A1910FBCB" bold="true" box="[199,352,1124,1149]" pageId="54" pageNumber="689">Distribution.</emphasis>
Tropical Pacific. This is the first record of the species for the Great Barrier Reef and
<collectingCountry id="AEEF26B1FFEBFF94FAC0A55A1DF7FBCB" box="[1309,1415,1124,1149]" name="Australia" pageId="54" pageNumber="689">Australia</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>