treatments-xml/data/AB/0E/18/AB0E185AC47DFFB74FE91E41AF3720B0.xml
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<mods:title id="08226839DA74F437DB2BB2D04EF8BFE7">New species of Cirratulidae (Annelida, Polychaeta) from abyssal depths of the Clarion-Clipperton Fracture Zone, North Equatorial Pacific Ocean</mods:title>
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<taxonomicName id="E4A7D2CFC47DFFB54FE91E41ADD82200" ID-CoL="85M2D" authority="Blake, 2019" authorityName="Blake" authorityYear="2019" box="[151,508,800,827]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="156" phylum="Annelida" rank="species" species="clippertonensis" status="sp. nov.">
<emphasis id="11D3755EC47DFFB54FE91E41ADD82200" bold="true" box="[151,508,800,827]" italics="true" pageId="5" pageNumber="156">Aphelochaeta clippertonensis</emphasis>
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<figureCitation id="BB9CB5C9C47DFFB54FE91E25AD382264" box="[151,284,836,863]" captionStart-0="FIGURE 3" captionStart-1="FIGURE 4" captionStartId-0="6.[151,250,1792,1817]" captionStartId-1="7.[151,250,1862,1887]" captionTargetBox-0="[178,1420,499,1738]" captionTargetBox-1="[157,1432,424,1841]" captionTargetId-0="figure@6.[158,1428,489,1767]" captionTargetId-1="figure@7.[151,1436,417,1843]" captionTargetPageId-0="6" captionTargetPageId-1="7" captionText-0="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." captionText-1="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri-0="https://zenodo.org/record/3268985/files/figure.png" httpUri-1="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">Figures 34</figureCitation>
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urn:lsid:zoobank.org:act:
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<taxonomicName id="E4A7D2CFC47DFFB54FE91EA0ACFB22E2" authorityName=", Blake" authorityYear="1991" box="[151,223,961,985]" class="Polychaeta" family="Cirratulidae" genus="Tharyx" kingdom="Animalia" order="Terebellida" pageId="5" pageNumber="156" phylum="Annelida" rank="genus">
<emphasis id="11D3755EC47DFFB54FE91EA0ACFB22E2" box="[151,223,961,985]" italics="true" pageId="5" pageNumber="156">Tharyx</emphasis>
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sp. C:
<bibRefCitation id="4736D4BDC47DFFB54E581EA1AE3322E2" author="Wilson, G. D. F. &amp; Hessler, R. R." box="[294,535,960,985]" pageId="5" pageNumber="156" pagination="24 - 86" refId="ref21781" refString="Wilson, G. D. F. &amp; Hessler, R. R. (1987) The effects of manganese nodule test mining on the benthic fauna in the North Equatorial Pacific. In: Spiess, F. N., Hessler, R., Wilson, G. &amp; Weydert, M. (Eds.), Environmental effects of deep sea dredging. Final Report prepared for the National Oceanographic and Atmospheric Administration under Contract NO. 83 - SAC- 00659. Scripps Institution of Oceanography, La Jolla, SIO Reference 87 - 5, pp. 24 - 86, appendices A-H. https: // doi. org / 10.13140 / RG. 2.1.1024.2080" type="journal article" year="1987">Wilson &amp; Hessler 1987</bibRefCitation>
: Appendix E (in part).
</paragraph>
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<emphasis id="11D3755EC47DFFB54FE91967AD53251A" bold="true" box="[151,375,1030,1057]" pageId="5" pageNumber="156">Material examined</emphasis>
.
<emphasis id="11D3755EC47DFFB54EFD1966A964251A" bold="true" box="[387,1344,1030,1057]" pageId="5" pageNumber="156">North Equatorial Pacific Ocean, abyssal plain, Clarion-Clipperton Fracture Zone</emphasis>
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Sta. DDT 6-93, veg 13,
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;
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Sta. DDT-8-93, veg. 24,
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fraction,
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<date id="57198F8CC47DFFB54AFE19DAAD2025C2" pageId="5" pageNumber="156" value="1993-09-02">02 Sep 1993</date>
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,
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,
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1
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(
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).—
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<taxonomicName id="E4A7D2CFC47DFFB54B4B19BFA8A325C2" box="[1077,1159,1246,1273]" class="Insecta" family="Calopterygidae" genus="Echo" kingdom="Animalia" order="Odonata" pageId="5" pageNumber="186" phylum="Arthropoda" rank="genus">ECHO</taxonomicName>
I
</emphasis>
</materialsCitation>
<emphasis id="11D3755EC47DFFB54BE519BEA88525C2" bold="true" box="[1179,1185,1247,1273]" pageId="5" pageNumber="156">,</emphasis>
<materialsCitation id="93CFA311C47DFFB54BD719BFAF48247A" ID-GBIF-Occurrence="2273627546" collectingDate="1983-06-14" collectionCode="DOMES, LACM-AHF" collectorName="Site C &amp; V Melville &amp; R. Hessler &amp; Sandia &amp; Sta. H" elevation="3" latitude="14.635377" longLatPrecision="1" longitude="-125.447014" pageId="5" pageNumber="156" specimenCount="1" typeStatus="paratype">
<emphasis id="11D3755EC47DFFB54BD719BFA97B25C2" bold="true" box="[1193,1375,1246,1273]" pageId="5" pageNumber="156">
<collectionCode id="45B63189C47DFFB54BD719BFA93425C2" box="[1193,1296,1246,1273]" pageId="5" pageNumber="156">DOMES</collectionCode>
<collectorName id="8E52CC9AC47DFFB54A6919BFA97B25C2" box="[1303,1375,1246,1273]" pageId="5" pageNumber="156">Site C</collectorName>
</emphasis>
, R/
<collectorName id="8E52CC9AC47DFFB54AF719BEACD72426" pageId="5" pageNumber="156">
V
<emphasis id="11D3755EC47DFFB54FE91862ACD72426" box="[151,243,1283,1309]" italics="true" pageId="5" pageNumber="156">Melville</emphasis>
</collectorName>
cruise, coll.
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<superScript id="D4D20404C47DFFB54D2C1863AE7E242B" attach="left" box="[594,602,1282,1296]" fontSize="6" pageId="5" pageNumber="156">2</superScript>
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box core,
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350, 1
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fraction,
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</collectingDate>
,
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,
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(
<collectionCode id="45B63189C47DFFB54D3B1846AEFD247A" box="[581,729,1319,1345]" pageId="5" pageNumber="156">LACM-AHF</collectionCode>
Poly 11259)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="6BBDFAC7C47DFFB64FB9182BAE1F20B0" lastPageId="6" lastPageNumber="157" pageId="5" pageNumber="156" type="description">
<paragraph id="2318A94CC47DFFB54FB9182BA8F12792" blockId="5.[151,1437,1030,2030]" pageId="5" pageNumber="156">
<emphasis id="11D3755EC47DFFB54FB9182BAD75245E" bold="true" box="[199,337,1354,1381]" pageId="5" pageNumber="156">Description</emphasis>
. A small, elongate, threadlike species.
<typeStatus id="FC1C17EEC47DFFB54C63182AAFA1245E" box="[797,901,1355,1381]" pageId="5" pageNumber="156" type="holotype">Holotype</typeStatus>
complete, 4.0 mm long,
<quantity id="E45F04A9C47DFFB54BCE182AA92E245D" box="[1200,1290,1355,1382]" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="5" pageNumber="156" unit="mm" value="0.3">0.3 mm</quantity>
wide across anterior segments with 20 setigers;
<typeStatus id="FC1C17EEC47DFFB54D501811AEAA24B1" box="[558,654,1392,1418]" pageId="5" pageNumber="156" type="paratype">paratype</typeStatus>
from Sta. DDT-5-93 complete,
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long,
<quantity id="E45F04A9C47DFFB54BD0180EA90624B1" box="[1198,1314,1391,1418]" metricMagnitude="-4" metricUnit="m" metricValue="2.13" pageId="5" pageNumber="156" unit="mm" value="0.213">0.213 mm</quantity>
wide with 16 setigers. Body slightly expanded in anterior and far posterior segments (
<figureCitation id="BB9CB5C9C47DFFB54B7018F2A87A2496" box="[1038,1118,1427,1453]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3</figureCitation>
AB, 4AC), but generally consistently narrow along entire body. Individual segments visibly separated from one another by setal fascicles; segmental furrows poorly developed (
<figureCitation id="BB9CB5C9C47DFFB54D3818BAAEAD24CE" box="[582,649,1499,1525]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Fig. 3</figureCitation>
AB); no moniliform segments. Parapodial shoulders not apparent in anterior segments or elsewhere along body. First 68 segments narrow, about three times wider than long (
<figureCitation id="BB9CB5C9C47DFFB54A4A189EA9B32722" box="[1332,1431,1535,1561]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3A</figureCitation>
,
<figureCitation id="BB9CB5C9C47DFFB54FE91B42ACFA2706" box="[151,222,1571,1597]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">4A, C</figureCitation>
); middle body segments longer, about 1.5 times as wide as long (
<figureCitation id="BB9CB5C9C47DFFB54CBE1B42A83D2706" box="[960,1049,1571,1597]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">Fig. 4C</figureCitation>
); posterior segments longer, about 1.8 times as wide as long (
<figureCitation id="BB9CB5C9C47DFFB54EC01B26AE04275A" box="[446,544,1607,1633]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3B</figureCitation>
,
<figureCitation id="BB9CB5C9C47DFFB54D521B26AE74275A" box="[556,592,1607,1633]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">4B</figureCitation>
. Dorsal and ventral grooves absent.
<typeStatus id="FC1C17EEC47DFFB54C9A1B29A8622759" box="[996,1094,1608,1634]" pageId="5" pageNumber="156" type="paratype">Paratype</typeStatus>
from Sta. H350 with posterior segments bearing elongate embryos, two per segment, each approximately
<quantity id="E45F04A9C47DFFB54C9A1B0BA80927BD" box="[996,1069,1642,1670]" metricMagnitude="-2" metricUnit="m" metricValue="8.5" pageId="5" pageNumber="156" unit="mm" value="85.0">85 µm</quantity>
long and
<quantity id="E45F04A9C47DFFB54BE01B0BA8C327BD" box="[1182,1255,1642,1670]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="5" pageNumber="156" unit="mm" value="35.0">35 µm</quantity>
wide (
<figureCitation id="BB9CB5C9C47DFFB54A4B1B0AA9B427BE" box="[1333,1424,1643,1669]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">Fig. 4D</figureCitation>
). Each embryo composed of numerous cells, but not differentiated. Color in alcohol opaque white.
</paragraph>
<paragraph id="2318A94CC47DFFB54FB91BD2AEE126F2" blockId="5.[151,1437,1030,2030]" pageId="5" pageNumber="156">
Pre-setiger region narrow, tapering from setiger 1 to tip of prostomium, about 1.5 times longer than wide (
<figureCitation id="BB9CB5C9C47DFFB54A1A1BD2AC9F27CA" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3A</figureCitation>
,
<figureCitation id="BB9CB5C9C47DFFB54FB61BB6ACCA27CA" box="[200,238,1751,1777]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">4A</figureCitation>
). Prostomium triangular, tapering to pointed apex; eyespots absent; nuchal organs not observed; proboscis with thin papillated epidermis, everted on
<typeStatus id="FC1C17EEC47DFFB54D081B9AAEFC262E" box="[630,728,1787,1813]" pageId="5" pageNumber="156" type="holotype">holotype</typeStatus>
(
<figureCitation id="BB9CB5C9C47DFFB54D961B9AAF69262E" box="[744,845,1787,1813]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3A</figureCitation>
,
<figureCitation id="BB9CB5C9C47DFFB54C241B9AAFA4262E" box="[858,896,1787,1813]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">4A</figureCitation>
). Peristomium with three weakly developed annular rings only evident laterally by shallow furrows; dorsal surface smooth with no separate dorsal crest (
<figureCitation id="BB9CB5C9C47DFFB54A481A7EA9AB2602" box="[1334,1423,1823,1849]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Fig. 3A</figureCitation>
). Dorsal tentacles present on anterior border of third peristomial ring (
<figureCitation id="BB9CB5C9C47DFFB54CF01A22AFD52666" box="[910,1009,1859,1885]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3A</figureCitation>
,
<figureCitation id="BB9CB5C9C47DFFB54C821A22A82F2666" box="[1020,1035,1859,1885]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="5" pageNumber="156">4</figureCitation>
AB); first pair of branchiae present posterior to tentacles at anterior border with setiger 1 (
<figureCitation id="BB9CB5C9C47DFFB54D891A06AF7F26BA" box="[759,859,1895,1921]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Figs. 3A</figureCitation>
, AB). Second pair of branchiae on setiger 1 dorsal to notosetae; subsequent branchiae in similar location on following segments (
<figureCitation id="BB9CB5C9C47DFFB54C821AEAA871269E" box="[1020,1109,1931,1957]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="5" pageNumber="156">Fig. 3A</figureCitation>
). Most branchiae missing but evident as stubs or scars through about setiger 10.
</paragraph>
<paragraph id="2318A94CC47DFFB64FB91AB2AD392078" blockId="5.[151,1437,1030,2030]" lastBlockId="6.[151,1436,152,467]" lastPageId="6" lastPageNumber="157" pageId="5" pageNumber="156">
Parapodia poorly developed throughout, with podial lobes reduced and with setae emerging directly from body wall. All setae thin capillaries. Notosetae 78 per fascicle on first 56 setigers, then reduced to 35 per fascicle over next 56 setigers; posterior setigers with 12 long natatory-like capillaries (
<figureCitation id="BB9CB5C9C47EFFB64CA31DDCA81A21EC" box="[989,1086,189,215]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="6" pageNumber="157">Figs. 3B</figureCitation>
,
<figureCitation id="BB9CB5C9C47EFFB64B351DDCA84A21EC" box="[1099,1134,189,215]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="6" pageNumber="157">4C</figureCitation>
); neurosetae of anterior setigers similar to notosetae, numbering 68 per fascicle, then reduced to
<quantity id="E45F04A9C47EFFB64CDE1D80AFC021C0" box="[928,996,225,251]" metricMagnitude="-2" metricUnit="m" metricValue="8.89" metricValueMax="10.16" metricValueMin="7.62" pageId="6" pageNumber="157" unit="in" value="3.5" valueMax="4.0" valueMin="3.0">34 in</quantity>
following segments; posterior segments with 12 capillaries where long notosetae occur. Individual capillaries thin, with no marginal fibrils evident in light microscopy.
</paragraph>
<paragraph id="2318A94CC47EFFB64FB91C2CA9AD205C" blockId="6.[151,1436,152,467]" box="[199,1417,333,359]" pageId="6" pageNumber="157">
Posterior end terminating in simple conical-shaped pygidium bearing numerous minute papillae (
<figureCitation id="BB9CB5C9C47EFFB64B931C2CA969205C" box="[1261,1357,333,359]" captionStart="FIGURE 3" captionStartId="6.[151,250,1792,1817]" captionTargetBox="[178,1420,499,1738]" captionTargetId="figure@6.[158,1428,489,1767]" captionTargetPageId="6" captionText="FIGURE 3. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view." httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="6" pageNumber="157">Figs. 3B</figureCitation>
,
<figureCitation id="BB9CB5C9C47EFFB64A271C2CA958205C" box="[1369,1404,333,359]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="6" pageNumber="157">4C</figureCitation>
).
</paragraph>
<paragraph id="2318A94CC47EFFB64FB91C10AE1F20B0" blockId="6.[151,1436,152,467]" box="[199,571,368,395]" pageId="6" pageNumber="157">
<emphasis id="11D3755EC47EFFB64FB91C10AD8B20B0" bold="true" box="[199,431,368,395]" pageId="6" pageNumber="157">Methyl Green stain</emphasis>
. No pattern.
</paragraph>
</subSubSection>
<subSubSection id="6BBDFAC7C47EFFB64FB91CF4AEBB20E8" pageId="6" pageNumber="157" type="etymology">
<paragraph id="2318A94CC47EFFB64FB91CF4AEBB20E8" blockId="6.[151,1436,152,467]" pageId="6" pageNumber="157">
<emphasis id="11D3755EC47EFFB64FB91CF4AD6C2094" bold="true" box="[199,328,405,431]" pageId="6" pageNumber="157">Etymology</emphasis>
. The name
<taxonomicName id="E4A7D2CFC47EFFB64EAB1CF4AEA42094" authorityName="Blake" authorityYear="2019" box="[469,640,405,431]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="6" pageNumber="157" phylum="Annelida" rank="species" species="clippertonensis">
<emphasis id="11D3755EC47EFFB64EAB1CF4AEA42094" box="[469,640,405,431]" italics="true" pageId="6" pageNumber="157">clippertonensis</emphasis>
</taxonomicName>
is taken from the second part of the name of the Clarion-Clipperton Facture Zone where the species was collected.
</paragraph>
</subSubSection>
<caption id="77D8F9C4C47EFFB64FE91A61AD362606" httpUri="https://zenodo.org/record/3268985/files/figure.png" pageId="6" pageNumber="157" startId="6.[151,250,1792,1817]" targetBox="[178,1420,499,1738]" targetPageId="6">
<paragraph id="2318A94CC47EFFB64FE91A61AD362606" blockId="6.[151,1436,1792,1853]" pageId="6" pageNumber="157">
<emphasis id="11D3755EC47EFFB64FE91A61AE742622" bold="true" box="[151,592,1792,1817]" pageId="6" pageNumber="157">
FIGURE 3.
<taxonomicName id="E4A7D2CFC47EFFB64E651A61AE742622" authority="Blake, 2019" authorityName="Blake" authorityYear="2019" box="[283,592,1792,1817]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="6" pageNumber="157" phylum="Annelida" rank="species" species="clippertonensis" status="sp. nov.">
<emphasis id="11D3755EC47EFFB64E651A61AE742622" bold="true" box="[283,592,1792,1817]" italics="true" pageId="6" pageNumber="157">Aphelochaeta clippertonensis</emphasis>
</taxonomicName>
</emphasis>
<taxonomicNameLabel id="0AE0C825C47EFFB64D291A60AEB52623" box="[599,657,1793,1817]" pageId="6" pageNumber="157" rank="species">
<emphasis id="11D3755EC47EFFB64D291A60AEAF2622" bold="true" box="[599,651,1793,1817]" pageId="6" pageNumber="157">n. sp</emphasis>
.
</taxonomicNameLabel>
Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view.
</paragraph>
</caption>
<subSubSection id="6BBDFAC7C47EFFB74FB91A0AAFE2205C" lastPageId="7" lastPageNumber="158" pageId="6" pageNumber="157" type="discussion">
<paragraph id="2318A94CC47EFFB74FB91A0AAFE2205C" blockId="6.[151,1437,1899,2033]" lastBlockId="7.[151,1437,153,395]" lastPageId="7" lastPageNumber="158" pageId="6" pageNumber="157">
<emphasis id="11D3755EC47EFFB64FB91A0AAD1026BE" bold="true" box="[199,308,1899,1925]" pageId="6" pageNumber="157">Remarks</emphasis>
.
<taxonomicName id="E4A7D2CFC47EFFB64E3B1A0AAEB726BE" authority="Blake, 2019" authorityName="Blake" authorityYear="2019" box="[325,659,1899,1925]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="6" pageNumber="157" phylum="Annelida" rank="species" species="clippertonensis" status="sp. nov.">
<emphasis id="11D3755EC47EFFB64E3B1A0AAEB726BE" box="[325,659,1899,1925]" italics="true" pageId="6" pageNumber="157">Aphelochaeta clippertonensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="0AE0C825C47EFFB64DE31A0AAEFA26BE" box="[669,734,1899,1925]" pageId="6" pageNumber="157" rank="species">
<emphasis id="11D3755EC47EFFB64DE31A0AAEFA26BE" bold="true" box="[669,734,1899,1925]" pageId="6" pageNumber="157">n. sp.</emphasis>
</taxonomicNameLabel>
is one of several small bitentaculate cirratulids from abyssal sediments in the Clarion-Clipperton Fracture Zone with a slender threadlike body. Among species of
<taxonomicName id="E4A7D2CFC47EFFB64A7C1AEEA9B82692" authorityName="Blake" authorityYear="1991" box="[1282,1436,1935,1961]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="6" pageNumber="157" phylum="Annelida" rank="genus">
<emphasis id="11D3755EC47EFFB64A7C1AEEA9B82692" box="[1282,1436,1935,1961]" italics="true" pageId="6" pageNumber="157">Aphelochaeta</emphasis>
</taxonomicName>
identified in this project,
<taxonomicName id="E4A7D2CFC47EFFB64ED21AD2AE5126F6" authority="Blake, 2019" authorityName="Blake" authorityYear="2019" box="[428,629,1971,1997]" class="Polychaeta" family="Cirratulidae" genus="Aphelochaeta" kingdom="Animalia" order="Terebellida" pageId="6" pageNumber="157" phylum="Annelida" rank="species" species="clippertonensis" status="sp. nov.">
<emphasis id="11D3755EC47EFFB64ED21AD2AE5126F6" box="[428,629,1971,1997]" italics="true" pageId="6" pageNumber="157">A. clippertonensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="0AE0C825C47EFFB64D041AD2AE9C26F6" box="[634,696,1971,1997]" pageId="6" pageNumber="157" rank="species">
<emphasis id="11D3755EC47EFFB64D041AD2AE9526F6" bold="true" box="[634,689,1971,1997]" pageId="6" pageNumber="157">n. sp</emphasis>
.
</taxonomicNameLabel>
is the only one to have reduced segmental furrows that result in the individual segments being defined only by the location of setal fascicles. Other species in this study have individual segments well defined with segmental furrows and distinctly separate from one another along the body. An exception is the
<typeStatus id="FC1C17EEC47FFFB74E721DDCAD4821EC" box="[268,364,189,215]" pageId="7" pageNumber="158" type="paratype">paratype</typeStatus>
from Sta. H350 that has elongate brooding embryos within segments in the posterior half of the body producing segments that appear swollen, lumpy, and rounded (
<figureCitation id="BB9CB5C9C47FFFB74CE91D80AFD721C0" box="[919,1011,225,251]" captionStart="FIGURE 4" captionStartId="7.[151,250,1862,1887]" captionTargetBox="[157,1432,424,1841]" captionTargetId="figure@7.[151,1436,417,1843]" captionTargetPageId="7" captionText="FIGURE 4. Aphelochaeta clippertonensis n. sp. Holotype (USNM 1557530): A, anterior end, dorsal view; B, posterior end, dorsal view. Paratype (USNM 1557533): C, anterior end middle body segments, left lateral view. Paratype (LACM-AHF Poly 12259): D, middle body segments with embryos (arrows). All stained with Shirlastain A." httpUri="https://zenodo.org/record/3268987/files/figure.png" pageId="7" pageNumber="158">Fig. 4D</figureCitation>
). There appear to be two embryos per segment that are similar in appearance to eggs and embryos observed for
<taxonomicName id="E4A7D2CFC47FFFB74C9A1C64A9792024" authority="Blake, 2018" authorityName="Blake" authorityYear="2018" box="[996,1373,261,287]" class="Polychaeta" family="Cirratulidae" genus="Tharyx" kingdom="Animalia" order="Terebellida" pageId="7" pageNumber="158" phylum="Annelida" rank="species" species="moniliformis">
<emphasis id="11D3755EC47FFFB74C9A1C64A8EF2024" box="[996,1227,261,287]" italics="true" pageId="7" pageNumber="158">Tharyx moniliformis</emphasis>
<bibRefCitation id="4736D4BDC47FFFB74BAA1C64A9792024" author="Blake, J. A." box="[1236,1373,261,287]" pageId="7" pageNumber="158" pagination="1 - 140" refId="ref19631" refString="Blake, J. A. (2018) Bitentaculate Cirratulidae (Annelida, Polychaeta) collected chiefly during cruises of the R / V Anton Bruun, USNS Eltanin, USCG Glacier, R / V Hero, RVIB Nathaniel B. Palmer, and R / V Polarstern from the Southern Ocean, Antarctica, and off Western South America. Zootaxa, 4537 (1), 1 - 140. https: // doi. org / 10.11646 / zootaxa. 4537.1.1" type="journal article" year="2018">Blake, 2018</bibRefCitation>
</taxonomicName>
from slope and abyssal depths in the Weddell Sea,
<collectingCountry id="5BB0E9DCC47FFFB74DEB1C48AF292078" box="[661,781,297,323]" name="Antarctica" pageId="7" pageNumber="158">Antarctica</collectingCountry>
. These observations suggest that deep-sea cirratulids have evolved viviparity or other means of brooding as part of their life cycles.
</paragraph>
</subSubSection>
<subSubSection id="6BBDFAC7C47FFFB74FB91C11AF3720B0" box="[199,787,368,395]" pageId="7" pageNumber="158" type="distribution">
<paragraph id="2318A94CC47FFFB74FB91C11AF3720B0" blockId="7.[151,1437,153,395]" box="[199,787,368,395]" pageId="7" pageNumber="158">
<emphasis id="11D3755EC47FFFB74FB91C11AD7D20B0" bold="true" box="[199,345,368,395]" pageId="7" pageNumber="158">Distribution</emphasis>
. Abyssal Pacific Ocean,
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.
</paragraph>
</subSubSection>
</treatment>
</document>