245 lines
32 KiB
XML
245 lines
32 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.883.36193" ID-GBIF-Dataset="4f6d7148-d281-4073-8bc1-24ce51c3717b" ID-PMC="PMC6828828" ID-Pensoft-Pub="1313-2970-883-1" ID-Pensoft-UUID="EAC9B5058CE55C5AA9A344F6FEFA25D5" ID-PubMed="31719773" ID-ZooBank="7ABDE7F0DD424B968A1380E1E59B1515" ModsDocID="1313-2970-883-1" checkinTime="1572422626326" checkinUser="pensoft" docAuthor="Wiklund, Helena, Neal, Lenka, Glover, Adrian G., Drennan, Regan, Muriel Rabone, & Dahlgren, Thomas G." docDate="2019" docId="5706DC61D68E5111B6A7F7AAE946678E" docLanguage="en" docName="ZooKeys 883: 1-82" docOrigin="ZooKeys 883" docSource="http://dx.doi.org/10.3897/zookeys.883.36193" docTitle="Oligobregma whaleyi Wiklund, Neal, Glover, Drennan, Rabone & Dahlgren, 2019, sp. nov." docType="treatment" docUuid="6856E564-D7EC-42B0-8DED-9CCB95B8ABFE" docUuidSource="ZooBank" docVersion="5" id="EAC9B5058CE55C5AA9A344F6FEFA25D5" lastPageNumber="1" masterDocId="EAC9B5058CE55C5AA9A344F6FEFA25D5" masterDocTitle="Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae" masterLastPageNumber="82" masterPageNumber="1" pageNumber="1" updateTime="1668167974120" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Capitellidae, Opheliidae, Scalibregmatidae, and Travisiidae</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Wiklund, Helena</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Neal, Lenka</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Glover, Adrian G.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Drennan, Regan</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Muriel Rabone,</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Dahlgren, Thomas G.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>883</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>82</mods:end>
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</mods:extent>
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</mods:part>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.883.36193</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.883.36193</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-883-1</mods:identifier>
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<mods:identifier type="ZooBank">7ABDE7F0DD424B968A1380E1E59B1515</mods:identifier>
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<mods:identifier type="Pensoft-UUID">EAC9B5058CE55C5AA9A344F6FEFA25D5</mods:identifier>
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<treatment ID-GBIF-Taxon="159909644" LSID="urn:lsid:zoobank.org:act:6856E564-D7EC-42B0-8DED-9CCB95B8ABFE" httpUri="http://treatment.plazi.org/id/5706DC61D68E5111B6A7F7AAE946678E" lastPageNumber="1" pageId="0" pageNumber="1">
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<subSubSection pageId="0" pageNumber="1" type="nomenclature">
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName LSID="5706DC61-D68E-5111-B6A7-F7AAE946678E" class="Polychaeta" family="Capitellidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma whaleyi" order="Capitellida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="whaleyi">Oligobregma whaleyi</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">
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Fig. 27
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<normalizedToken originalValue="A–I">A-I</normalizedToken>
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</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="materials_examined">
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<paragraph pageId="0" pageNumber="1">Material examined.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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NHM_822 (
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<emphasis bold="true" pageId="0" pageNumber="1">holotype</emphasis>
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) NHMUK ANEA 2019.7160, coll. 20 Feb. 2015,
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<geoCoordinate degrees="12" direction="north" minutes="32.23" orientation="latitude" precision="9" value="12.537167">12°32.23N</geoCoordinate>
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,
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<geoCoordinate degrees="116" direction="west" minutes="36.25" orientation="longitude" precision="9" value="-116.604164">116°36.25W</geoCoordinate>
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, 4425 m http://data.nhm.ac.uk/object/dde1c8f9-f87a-430b-be9d-5e34685772bb.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="type locality">
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<paragraph pageId="0" pageNumber="1">Type locality.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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Pacific Ocean, CCZ,
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<geoCoordinate degrees="12" direction="north" minutes="32.23" orientation="latitude" precision="9" value="12.537167">12°32.23N</geoCoordinate>
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,
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<geoCoordinate degrees="116" direction="west" minutes="36.25" orientation="longitude" precision="9" value="-116.604164">116°36.25W</geoCoordinate>
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, depth 4425 m, in mud between polymetallic nodules.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="description">
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<paragraph pageId="0" pageNumber="1">Description.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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Large species, represented by a single, posteriorly incomplete specimen, with 26 chaetigers, 16 mm long and about 2 mm wide at widest (inflated) region (first eight chaetigers, particularly chaetigers 3-8), with another widening of the body in chaetigers 23-26, likely due to sediment ingestion. Colour in alcohol creamy white, without body pigment, live specimens semi-translucent (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27A</figureCitation>
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). Anterior body segments appear smooth, without distinct annulation, chaetigers 1-5 with three transverse rows of weakly developed lobes; subsequent segments quadriannulated until the end of the fragment (chaetiger 26) (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27B, C</figureCitation>
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). Ventral midline on venter prominent, from chaetiger 2, composed of a row of large pads within a groove (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27C</figureCitation>
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). Branchiae absent.
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</paragraph>
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<caption doi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" start="Figure 27" startId="F27">
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<paragraph pageId="0" pageNumber="1">
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<emphasis bold="true" pageId="0" pageNumber="1">Figure 27.</emphasis>
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<taxonomicName class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma whaleyi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="whaleyi">
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<emphasis italics="true" pageId="0" pageNumber="1">Oligobregma whaleyi</emphasis>
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</taxonomicName>
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sp. nov. holotype (specimen NHM_822).
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<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
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Lab (upper) and live (lower) images, whole specimens [lab image]
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<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
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Lab image, mid-body segments and annulation
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<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
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Lab image, ventral midbody (vm = ventral midline)
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<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
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Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns)
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<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
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Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla)
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<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
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Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland)
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<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
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Lab image, detail of notopodial spines on chaetiger 1
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<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
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Lab image, detail of capillary chaetae (lc = lyrate chaetae)
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<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
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Lab image, detail of lyrate chaetae. Morphological features in plates
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<emphasis bold="true" pageId="0" pageNumber="1">
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<normalizedToken originalValue="B–D">B-D</normalizedToken>
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, F, G, H
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</emphasis>
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have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (
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<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
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); 100
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="1">
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<normalizedToken originalValue="F–H">F-H</normalizedToken>
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</emphasis>
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); 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
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).
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="1">
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Prostomium broadly rounded anteriorly, weakly expanded laterally, narrowing posteriorly; with two well-developed, anterior rounded lobes (horns) emerging from anterior prostomial margin (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27D</figureCitation>
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). Eyes absent. Proboscis observed as a soft, smooth sac-like structure. Peristomium forming smooth figure-of-8-like loops laterally to prostomium (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27D</figureCitation>
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), dorsally interrupted, ventrally obscured by extended proboscis; with faint light-brown pigmentation.
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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Parapodia biramous; conspicuous even in anterior-most segments (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27E</figureCitation>
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), becoming longer and prominent from around chaetiger 10. Dorsal and ventral cirri appear abruptly from chaetiger 14, where similar to those on subsequent segment; relatively small (about 1/2 the size of associated podial lobes) in posterior chaetiger; all conical with broad base (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27E</figureCitation>
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), without pigmentation; some dorsal and ventral cirri with gold-pigmented internal glands, now bluish upon uptake of Shirlastain (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27F</figureCitation>
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). Interramal papilla present, inconspicuous in anterior parapodia, well developed from chaetiger 10 (
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<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27E</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Curved acicular spines present in notopodia and neuropodia on chaetigers 1‒4. Notopodia with about 15 spines arranged in irregular row, accompanied posteriorly by single row of capillaries; neuropodial spines fewer in numbers arranged irregularly. Spines slightly curved, narrowing to slender elongated tip (
|
||
<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27G</figureCitation>
|
||
). Short spinous chaetae anterior to spines not observed. Subsequent chaetigers with long thin capillaries in both rami (
|
||
<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27H</figureCitation>
|
||
). Lyrate chaetae at least from chaetiger 11, in both rami, positioned anteriorly to capillaries. Lyrate chaetae short, with unequal tynes bearing short bristles (
|
||
<figureCitation captionStart="Figure 27" captionStartId="F27" captionText="Figure 27. Oligobregma whaleyi sp. nov. holotype (specimen NHM _ 822). A Lab (upper) and live (lower) images, whole specimens [lab image] B Lab image, mid-body segments and annulation C Lab image, ventral midbody (vm = ventral midline) D Live (left) and lab (right) images of prostomium (pe = peristomial ring, h = prostomial horns) E Lab images, midbody and posterior parapodia, chaetigers 15 (left) and 24 (right) (dc = dorsal cirrus, vc = ventral cirrus, ip = interramal papilla) F Lab image, detail of dorsal cirrus and internal gland (dc = dorsal cirrus, ig = internal gland) G Lab image, detail of notopodial spines on chaetiger 1 H Lab image, detail of capillary chaetae (lc = lyrate chaetae) I Lab image, detail of lyrate chaetae. Morphological features in plates B-D, F, G, H have been outlined with a fine white or black line to improve clarity of those features. Scale bars: 1 mm (A); 100 μm (F-H); 50 μm (I)." figureDoi="10.3897/zookeys.883.36193.figure27" httpUri="https://binary.pensoft.net/fig/350279" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure27">Fig. 27I</figureCitation>
|
||
), numbering 12-20 per noto- and neuropodium. The rest of the body and pygidium unknown.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="genetic data">
|
||
<paragraph pageId="0" pageNumber="1">Genetic data.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
GenBank MN217432 for 16S and MN217500 for 18S. The three
|
||
<taxonomicName class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Oligobregma</emphasis>
|
||
</taxonomicName>
|
||
species in this study form a well-supported clade.
|
||
<taxonomicName class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma whaleyi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="whaleyi">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Oligobregma whaleyi</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. is sister to a clade consisting of
|
||
<taxonomicName class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma tani" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="tani">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Oligobregma tani</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. and
|
||
<taxonomicName class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma brasierae" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="brasierae">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Oligobregma brasierae</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. in our phylogenetic analyses (
|
||
<figureCitation captionStart="Figure 32" captionStartId="F32" captionText="Figure 32. Phylogenetic analysis of Scalibregmatidae and Travisiidae. 50 % majority rule tree from the Bayesian analyses using 18 S and 16 S, with posterior probability values on nodes. Twenty taxa from GenBank were included, and Opheliidae was chosen as outgroup following the annelid phylogeny of Weigert and Bleidorn (2016)." figureDoi="10.3897/zookeys.883.36193.figure32" httpUri="https://binary.pensoft.net/fig/350284" pageId="0" pageNumber="1" tableDoi="10.3897/zookeys.883.36193.figure32">Fig. 32</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="remarks">
|
||
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
The UKSR-collected species
|
||
<taxonomicName lsidName="O. whaleyi" pageId="0" pageNumber="1" rank="species" species="whaleyi">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">O. whaleyi</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. differs from other
|
||
<taxonomicName class="Polychaeta" family="Scalibregmatidae" genus="Oligobregma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Oligobregma" pageId="0" pageNumber="1" phylum="Annelida" rank="genus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Oligobregma</emphasis>
|
||
</taxonomicName>
|
||
species bearing spines on the first four chaetigers in having a peristomial ring forming a figure-of-8 loops laterally to prostomium and in furcate chaetae appearing more posteriorly (first observed on chaetiger 11 although due to its large size the specimen was difficult to manipulate and removal of several parapodia would have damaged the single specimen significantly), while in other species the furcate chaetae are present from chaetiger 6. In
|
||
<taxonomicName lsidName="O. lonchochaeta" pageId="0" pageNumber="1" rank="species" species="lonchochaeta">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">O. lonchochaeta</emphasis>
|
||
</taxonomicName>
|
||
<bibRefCitation author="Detinova, NN" journalOrPublisher="Shirshova" pageId="0" pageNumber="1" pagination="96 - 136" refId="B20" refString="Detinova, NN, 1985. Mnogoshchetinkovye chervi khrebta Reikyanes (Severnaya Atlantika) [Polychaetous worms from the Reykjanes Ridge (the North Atlantic). Bottom Fauna from Mid-Ocean Rises in the North Atlantic. Donnayafauna Otkryto. Okeanicheskikh. Podnyatij. Severnaya. Atlantika]. Trudy Instituta Okeanologii im. P.P. Shirshova 120: 96 - 136" title="Mnogoshchetinkovye chervi khrebta Reikyanes (Severnaya Atlantika) [Polychaetous worms from the Reykjanes Ridge (the North Atlantic). Bottom Fauna from Mid-Ocean Rises in the North Atlantic. Donnayafauna Otkryto. Okeanicheskikh. Podnyatij. Severnaya. Atlantika]. Trudy Instituta Okeanologii im. P. P." volume="120" year="1985">Detinova (1985)</bibRefCitation>
|
||
described the furcate chaetae as occurring only in mid- and posterior chaetigers but without specifically stating on which chaetiger they were first observed. Therefore, the newly described species can be distinguished from
|
||
<taxonomicName lsidName="O. lonchochaeta" pageId="0" pageNumber="1" rank="species" species="lonchochaeta">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">O. lonchochaeta</emphasis>
|
||
</taxonomicName>
|
||
by having the anterior chaetigers smooth, rather than triannulated. For further comparison see Table
|
||
<tableCitation captionStartId="T3" httpUri="http://table.plazi.org/id/DDDBBB22665B828F2F007C593247A004" pageId="0" pageNumber="1" tableUuid="DDDBBB22665B828F2F007C593247A004">3</tableCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="ecology">
|
||
<paragraph pageId="0" pageNumber="1">Ecology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">Found in polymetallic nodule province of the eastern CCZ.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="etymology">
|
||
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Named in honor of Jeremy Whaley, Able Seaman onboard RV
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Melville</emphasis>
|
||
on the ABYSSLINE cruise AB01 in 2013.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |