151 lines
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151 lines
15 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.545.6454" ID-GBIF-Dataset="72dd4707-9fbd-4319-a797-e4183de7f3df" ID-PMC="PMC4714364" ID-Pensoft-Pub="1313-2970-545-27" ID-PubMed="26798291" ID-ZBK="DA9BF8C816A444EAA8BD6D8836AA44AB" ModsDocAuthor="" ModsDocDate="2015" ModsDocID="1313-2970-545-27" ModsDocOrigin="ZooKeys 545" ModsDocTitle="A new species of Amphictene (Annelida, Pectinariidae) from the northern South China Sea" checkinTime="1451243630053" checkinUser="pensoft" docAuthor="Zhang, Jinghuai, Zhang, Yanjie & Qiu, Jian-Wen" docDate="2015" docId="9A69634C45116495B21009BE788671F2" docLanguage="en" docName="ZooKeys 545: 27-36" docOrigin="ZooKeys 545" docSource="http://dx.doi.org/10.3897/zookeys.545.6454" docTitle="Amphictene alata Zhang, Zhang & Qiu, 2015, sp. n." docType="treatment" docUuid="0DE5D0F9-FCF9-4FDF-A300-786BC1A0F88C" docUuidSource="ZooBank" docVersion="5" lastPageNumber="31" masterDocId="FFF5FFC6C43EFFBC80784C2DAF6EFFA5" masterDocTitle="A new species of Amphictene (Annelida, Pectinariidae) from the northern South China Sea" masterLastPageNumber="36" masterPageNumber="27" pageNumber="28" updateTime="1668162316385" 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>A new species of Amphictene (Annelida, Pectinariidae) from the northern South China Sea</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>Zhang, Jinghuai</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>Zhang, Yanjie</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>Qiu, Jian-Wen</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>2015</mods:date>
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<mods:detail type="volume">
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<mods:number>545</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>27</mods:start>
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<mods:end>36</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.545.6454</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.545.6454</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-545-27</mods:identifier>
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<mods:identifier type="ZBK">DA9BF8C816A444EAA8BD6D8836AA44AB</mods:identifier>
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<mods:identifier type="ZooBank">DA9BF8C816A444EAA8BD6D8836AA44AB</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="127875298" LSID="urn:lsid:zoobank.org:act:0DE5D0F9-FCF9-4FDF-A300-786BC1A0F88C" httpUri="http://treatment.plazi.org/id/9A69634C45116495B21009BE788671F2" lastPageId="4" lastPageNumber="31" pageId="1" pageNumber="28">
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<subSubSection pageId="1" pageNumber="28" type="multiple">
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<paragraph pageId="1" pageNumber="28">Taxon classification Animalia Terebellida Pectinariidae</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="28" type="nomenclature">
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<paragraph pageId="1" pageNumber="28">
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<taxonomicName LSID="http://zoobank.org/0DE5D0F9-FCF9-4FDF-A300-786BC1A0F88C" class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene alata" order="Terebellida" pageId="1" pageNumber="28" phylum="Annelida" rank="species" species="alata">Amphictene alata</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="28">sp. n.</taxonomicNameLabel>
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Figs 1, 2, 3, Table 1
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="29" pageId="1" pageNumber="28" type="materials_examined">
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<paragraph pageId="1" pageNumber="28">Material examined.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="29" pageId="1" pageNumber="28">
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15 type specimens, all collected from the silt-clay bottom of Daya Bay and Honghai Bay, Guangdong Province, China at 6 to 22.5 m depth (Table 1).
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<pageBreakToken pageId="2" pageNumber="29" start="start">Holotype</pageBreakToken>
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: MBM283388. Paratypes: MBM283389, MBM283390, MBM283391 and MBM283392, SCSMBC006677, SCSMBC006678, SCSMBC006679 (prepared for SEM), SCSMBC006680, SCSMBC006681, SCSMBC006682, SCSMBC006683 (prepared for SEM), AMW.48292, AMW.48293 and AMW.48294. Among them, SCSMBC006681 and SCSMBC006682 are incomplete with 14 anterior segments and 12 anterior segments, respectively. SCSMBC006679 and SCSMBC006683 are each broken into two fragments. Others specimens are complete.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="29" type="etymology">
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<paragraph pageId="2" pageNumber="29">Etymology.</paragraph>
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<paragraph pageId="2" pageNumber="29">The specific name alata is derived from ala, a Latin word for wing. It refers to the pair of wing-shaped dorsal lateral lobes on segment 3, a distinctive feature for this species.</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="29" type="diagnosis">
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<paragraph pageId="2" pageNumber="29">Diagnosis.</paragraph>
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<paragraph pageId="2" pageNumber="29">Cephalic veil completely free from operculum forming dorsal semi-circle around numerous peristomial palps. Rim of cephalic veil with 11 to 16 long cirri. Dorsal operculum raised with 20-25 marginal cirri. Comb-like branchiae present on segments 3 and 4. A pair of dorsal lateral lobes present on segment 3. Chaetigers 1 to 3 (segments 5 to 7) with notopodia and notochaetae only. Chaetigers 4 to 16 (segments 8 to 16) biramous with notopodia, neuropodia, notochaetae and neurochaetae. Notochaetae winged capillaries. Neurochaetal uncini with major teeth arranged in two to three rows. Segment 21 with a pair of large lateral lobes but without chaetae. Scaphe distinctly separated from abdomen, with 26-37 pairs of short hooks with a slightly curved tip.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="31" pageId="2" pageNumber="29" type="description">
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<paragraph pageId="2" pageNumber="29">Description.</paragraph>
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<paragraph pageId="2" pageNumber="29">Preserved specimens pale cream to grey in colour. Body length of intact specimens including scaphe 16.0 to 50.7 mm, and greatest width at cephalic region 2.2 to 6.9 mm (Table 1). Cephalic veil completely free from operculum, forming dorsal semi-circular lobe surrounding numerous peristomial palps. Rim of cephalic veil with 11 to 16 long smooth cirri; cirri basally triangular, tapering to form terminal filament (Figs 1A, 2E, 3B). Doral opercular margin raised, crenulated with 8 to 13 triangular dorsal lappets and 5 to 6 pairs of short smooth lateral cirri (Figs 1B, 2D, 3A). Operculum with 8 to 11 pairs of golden paleae, fan-shaped on each side with ventral ones longer than lateral ones, curved dorsally with extended tips (Figs 1B, 2B, 3A).</paragraph>
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<caption pageId="2" pageNumber="29">
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<paragraph pageId="2" pageNumber="29">
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Figure 1.
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene alata" order="Terebellida" pageId="2" pageNumber="29" phylum="Annelida" rank="species" species="alata">Amphictene alata</taxonomicName>
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sp. n., drawn from holotype MBM283388. A ventral view of anterior end B lateral view of anterior end C dorsal view of posterior end D ventral view of notochaeta 1 E ventral view of notochaeta, chaetiger 2 F dorsal view of notochaeta, chaetiger 2 G lateral view of neurochaeta uncinus. Scale bars: 1 mm (
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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); 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<normalizedToken originalValue="D–F">D-F</normalizedToken>
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); 5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(G). Abbreviations for morphological characters have been defined in Material and methods.
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</paragraph>
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</caption>
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<caption pageId="2" pageNumber="29">
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<paragraph pageId="2" pageNumber="29">
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Figure 2.
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene alata" order="Terebellida" pageId="2" pageNumber="29" phylum="Annelida" rank="species" species="alata">Amphictene alata</taxonomicName>
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sp. n. paratypes W.48293. A tube, broken in the middle B dorsal view of the whole worm C ventral view of the whole worm D dorsal view of anterior end E ventral view of anterior end F lateral view of anterior end G lateral view of posterior end. Scale bars: 1 cm (A); 5 mm (B, C); 2 mm (D, E); 1 mm (F, G). Abbreviations for morphological characters have been defined in Material and methods.
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</paragraph>
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</caption>
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<caption pageId="2" pageNumber="29">
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<paragraph pageId="2" pageNumber="29">
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Figure 3.
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene alata" order="Terebellida" pageId="2" pageNumber="29" phylum="Annelida" rank="species" species="alata">Amphictene alata</taxonomicName>
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sp. n. Scanning electron micrographs of paratype SCSMBC006683. A dorsal view of anterior end B ventral view of anterior end C lateral view of anterior end D left dorsal lateral lobe on segment 3 E some examples of the scaphal hooks F, H, I ventral view of notochaetae from chaetiger 2 G dorsal view of notochaetae from chaetiger 2 J ventral view of notochaetae from chaetiger 4 K, L and M ventral neurochaetae from chaetiger 4, 6 and 13, respectively N and O dorsal neurochaetae from chaetiger 5 and 16, respectively P dorsolateral view of scaphe Q ventral view of scaphe. Scale bars: 2 mm (
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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); 500
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(D); 100
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(E, J); 200
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(F, G); 20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(H, I); 5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(
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<normalizedToken originalValue="K–M">K-M</normalizedToken>
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, O); 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(N); 1 mm (P, Q). Abbreviations for morphological characters have been defined in Material and methods.
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</paragraph>
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</caption>
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<paragraph pageId="2" pageNumber="29">Tentacular cirri subulate, annulate, tapering to apex (Figs 1A, B). First pair of tentacular cirri arises on ventral posterolateral margin of segment 1 (Figs 1B, 2F, 3C). Second pair of tentacular cirri present laterally on segment 2 with dorsal and ventral ear-shaped lobes at the base (Figs 1B, 2F, 3C). Segment 2 with an incised ventral ridge, forming glandular lobes (Fig. 1B). Segment 2 without anterodorsal lobe (Figs 1B, 2D, 3A).</paragraph>
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<paragraph pageId="2" pageNumber="29">Segment 3 with a large midventral lobe (Figs 1A, 2E, 3B), a pair of dorsolateral lobes with crenulated margin (Figs 1B, 2D, 2F, 3A, 3D), and a pair of lateral lamellate branchiae (Figs 1B, 2F, 3C).</paragraph>
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<paragraph pageId="2" pageNumber="29">Segment 4 with a small midventral lobe (Figs 1A, 2E, 3B), a pair of larger lateral ventral lobes (Figs 1A, 2E, 3B), and a pair of lateral lamellate branchiae (Figs 1B, 2F, 3C). Large subquadrate glandular lobes arise ventrally at base of branchiae (Fig. 1A). Segment 4 with smooth dorsum (Figs 1B, 2B, 3A).</paragraph>
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<paragraph lastPageId="4" lastPageNumber="31" pageId="2" pageNumber="29">
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Segments 5 to 7 (chaetigers 1 to 3) with notopodia and notochaetae only (Figs 1B, 2F); anteroventral lobe large and broad (Figs 1A, 2E, 3B). Segment 5 with a small mid
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<pageBreakToken pageId="3" pageNumber="30" start="start">ventral</pageBreakToken>
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lobe, and a pair of huge lateral ventral lobes covering much of the venter. Segment 6 with a small midventral lobe, and a pair of larger lateral ventral lobes. Segment 7 with a raised ventral lobe running through the venter. Segments 8 to 20 (chaetigers 4 to 16) biramous with wedge-shaped notopodia and lobe-shaped neuropodia. Notopodia with two kinds of simple chaetae: one slender, with sub-distal serrations along one side (Figs 1D, 3
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<normalizedToken originalValue="F–I">F-I</normalizedToken>
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); the other stout, with finely hirsute surface on one side, tapering
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<pageBreakToken pageId="4" pageNumber="31" start="start">to</pageBreakToken>
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an acute tip (Figs 1E, 1F, 3J). Neuropodia with uncini arranged in one row along raised ridge of the tori. Uncini with two or three longitudinal rows of teeth, each row with 7 to 9 major teeth (Figs 1G, 3
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<normalizedToken originalValue="K–O">K-O</normalizedToken>
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).
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</paragraph>
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<paragraph pageId="4" pageNumber="31">Segment 21 achaetous, with a pair of large lobes covering much of the lateral sides of the body (Figs 1C, 2G, 3P).</paragraph>
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<paragraph pageId="4" pageNumber="31">Scaphe formed by fusion of 5 posterior segments, distinctly separated from abdomen (Fig. 3Q). Scaphe ovoid, slightly convex dorsally, with two pairs of lappets on lateral margin (Figs 1C, 1D, 2G, 3P), and four small triangular lappets on distal margin (Fig. 3Q). Scaphal hooks 26 to 39 pairs, short, with a slightly bent tip (Fig. 3E). Anal tongue oval, with smooth margin extending beyond posterior scaphal margin (Figs 1C, 3P, 3Q).</paragraph>
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<paragraph pageId="4" pageNumber="31">Tube yellowish, conical, straight, composed of sand grains and shell fragments held together by cement (Fig. 2A).</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="31" type="variation in morphological characters">
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<paragraph pageId="4" pageNumber="31">Variation in morphological characters.</paragraph>
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<paragraph pageId="4" pageNumber="31">A number of morphological characters exhibit variations (Table 1). Specifically, the body length ranges from 10.2 to 50.7 mm, the widest width of anterior body ranges from 2.2 to 6.9 mm, the numbers of cephalic veil cirri range from 11 to 16, the pairs of paleae range from 8 to 11, the number of triangular lappets on the raised opercular rim varies from 20 to 25, and the number of pairs of scaphal hooks ranges from 25 to 37. The widest width of anterior body (BW) and body length (BL) are positively correlated: BL = 0.7469BW - 3.6038, R2 = 0.8252, P <0.001, n = 15. Correlational analysis between BW, which is considered to be less affected by fixation than BL, and other quantitative parameters in Table 1 shows that BW had significant positive correlation only with the number of scaphal hooks (SH): SH = 2.3185BW + 20.213, R2 = 0.3419, P = 0.036, n = 13.</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="31" type="type locality and distribution">
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<paragraph pageId="4" pageNumber="31">Type locality and distribution.</paragraph>
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<paragraph pageId="4" pageNumber="31">Currently only known from Daya Bay and Honghai Bay, Guangdong in the northern South China Sea.</paragraph>
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</subSubSection>
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</treatment>
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</document> |