289 lines
30 KiB
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289 lines
30 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.893.39594" ID-GBIF-Dataset="69c65e42-e749-4554-a978-632f5c9f1e71" ID-PMC="PMC6901610" ID-Pensoft-Pub="1313-2970-893-21" ID-Pensoft-UUID="50078503026A5CE5BD639CC2246EA2E7" ID-PubMed="31844399" ID-ZooBank="87F5A01B2AE74D5CB38EDEFA512DFE89" ModsDocID="1313-2970-893-21" checkinTime="1575325056216" checkinUser="pensoft" docAuthor="Salazar-Vallejo, Sergio I., Rizzo, Alexandra E., Leon-Gonzalez, J. Angel de & Brauko, Kalina M." docDate="2019" docId="E6A0B2B074C1544591B9AB66D3B3CECE" docLanguage="en" docName="ZooKeys 893: 21-50" docOrigin="ZooKeys 893" docSource="http://dx.doi.org/10.3897/zookeys.893.39594" docTitle="Sigambra grubii Mueller 1858" docType="treatment" docVersion="4" id="50078503026A5CE5BD639CC2246EA2E7" lastPageNumber="21" masterDocId="50078503026A5CE5BD639CC2246EA2E7" masterDocTitle="Four new Caribbean Sigambra species (Annelida, Pilargidae), and clarifications of three other Sigambra species" masterLastPageNumber="50" masterPageNumber="21" pageNumber="21" updateTime="1668168159310" 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>Four new Caribbean Sigambra species (Annelida, Pilargidae), and clarifications of three other Sigambra species</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>Salazar-Vallejo, Sergio I.</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>Rizzo, Alexandra E.</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>Leon-Gonzalez, J. Angel de</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>Brauko, Kalina M.</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>893</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>21</mods:start>
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<mods:end>50</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.893.39594</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.893.39594</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-893-21</mods:identifier>
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<mods:identifier type="ZooBank">87F5A01B2AE74D5CB38EDEFA512DFE89</mods:identifier>
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<mods:identifier type="Pensoft-UUID">50078503026A5CE5BD639CC2246EA2E7</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="160612178" LSID="urn:lsid:plazi:treatment:E6A0B2B074C1544591B9AB66D3B3CECE" httpUri="http://treatment.plazi.org/id/E6A0B2B074C1544591B9AB66D3B3CECE" lastPageNumber="21" pageId="0" pageNumber="21">
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<subSubSection pageId="0" pageNumber="21" type="nomenclature">
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<paragraph pageId="0" pageNumber="21">
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<taxonomicName LSID="E6A0B2B0-74C1-5445-91B9-AB66D3B3CECE" authority="Mueller, 1858" authorityName="Mueller" authorityYear="1858" class="Polychaeta" family="Pilargidae" genus="Sigambra" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sigambra grubii" order="Annelida" pageId="0" pageNumber="21" phylum="Annelida" rank="species" species="grubii">
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Sigambra grubii
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<normalizedToken originalValue="Müller">Mueller</normalizedToken>
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, 1858
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</taxonomicName>
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Figs 3</figureCitation>
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,
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">4</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="21" type="reference_group">
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<paragraph pageId="0" pageNumber="21">
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<taxonomicName class="Polychaeta" family="Pilargidae" genus="Sigambra" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sigambra grubii" order="Annelida" pageId="0" pageNumber="21" phylum="Annelida" rank="species" species="grubii">Sigambra grubii</taxonomicName>
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<normalizedToken originalValue="Müller">Mueller</normalizedToken>
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, 1858: 214-215, pl. 6, figs 7-9;
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<bibRefCitation DOI="https://doi.org/10.5479/si.00963801.118-3525.155" author="Pettibone, MH" journalOrPublisher="Proceedings of the United States National Museum" pageId="0" pageNumber="21" pagination="155 - 207" refId="B46" refString="Pettibone, MH, 1966. Revision of the Pilargidae (Annelida: Polychaeta) including descriptions of new species, and redescription of the pelagic Podarmusploa Chamberlin (Polynoidae). Proceedings of the United States National Museum 118: 155 - 207" title="Revision of the Pilargidae (Annelida: Polychaeta) including descriptions of new species, and redescription of the pelagic Podarmusploa Chamberlin (Polynoidae)." url="https://doi.org/10.5479/si.00963801.118-3525.155" volume="118" year="1966">Pettibone 1966</bibRefCitation>
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: 182, fig. 13
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<normalizedToken originalValue="a–c">a-c</normalizedToken>
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(reinstatement);
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<bibRefCitation DOI="https://doi.org/10.1080/00222939000770351" author="Salazar-Vallejo, SI" journalOrPublisher="Journal of Natural History" pageId="0" pageNumber="21" pagination="507 - 517" refId="B49" refString="Salazar-Vallejo, SI, 1990. Redescriptions of Sigambragrubii Mueller 1858 and Hermunduratricuspis Mueller 1858 from Brazil and designation of neotypes (Polychaeta: Pilargidae). Journal of Natural History 24: 507 - 517" title="Redescriptions of Sigambragrubii Mueller 1858 and Hermunduratricuspis Mueller 1858 from Brazil and designation of neotypes (Polychaeta: Pilargidae)." url="https://doi.org/10.1080/00222939000770351" volume="24" year="1990">Salazar-Vallejo 1990</bibRefCitation>
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: 508-511, figs 1, 2, 4
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<normalizedToken originalValue="A–C">A-C</normalizedToken>
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, table 1 (redescription, key to species);
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<bibRefCitation DOI="https://doi.org/10.1002/mmnz.4840690106" author="Hartwich, G" journalOrPublisher="Mitteilungen aus dem Zoologischen Museum in Berlin" pageId="0" pageNumber="21" pagination="73 - 154" refId="B29" refString="Hartwich, G, 1993. Die Polychaeten-Typen des Zoologischen Museums in Berlin. Mitteilungen aus dem Zoologischen Museum in Berlin 69: 73 - 154" title="Die Polychaeten-Typen des Zoologischen Museums in Berlin." url="https://doi.org/10.1002/mmnz.4840690106" volume="69" year="1993">Hartwich 1993</bibRefCitation>
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: 104 (1 syntype).
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</paragraph>
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<paragraph pageId="0" pageNumber="21">
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<taxonomicName class="Polychaeta" family="Pilargidae" genus="Sigambra" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sigambra grubei" order="Annelida" pageId="0" pageNumber="21" phylum="Annelida" rank="species" species="grubei">Sigambra grubei</taxonomicName>
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:
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<bibRefCitation author="Licher, F" journalOrPublisher="Steenstrupia" pageId="0" pageNumber="21" pagination="1 - 20" refId="B36" refString="Licher, F, Westheide, W, 1997. Review of the genus Sigambra (Polychaeta: Hesionidae), redescription of S.bassi (Hartman 1947), and descriptions of two new species from Thailand and China. Steenstrupia 23: 1 - 20" title="Review of the genus Sigambra (Polychaeta: Hesionidae), redescription of S. bassi (Hartman 1947), and descriptions of two new species from Thailand and China." volume="23" year="1997">Licher and Westheide 1997</bibRefCitation>
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: 3 (new orthography).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="21" type="materials_examined">
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<paragraph pageId="0" pageNumber="21">Material examined.</paragraph>
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<paragraph pageId="0" pageNumber="21">
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<emphasis bold="true" pageId="0" pageNumber="21">Brazil.</emphasis>
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Pontal da Daniela (
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<geoCoordinate degrees="27" direction="south" minutes="27" orientation="latitude" precision="15" seconds="11" value="-27.453056">27°27'11"S</geoCoordinate>
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,
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<geoCoordinate degrees="48" direction="west" minutes="31" orientation="longitude" precision="15" seconds="47" value="-48.52972">48°31'47"W</geoCoordinate>
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), in the Santa Catharina Island,
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<normalizedToken originalValue="Florianópolis">Florianopolis</normalizedToken>
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. One specimen, 13RC1, July 2018 [mature female, anterior fragment (6.5 mm long, 0.9 mm wide, 54 chaetigers, first dorsal hooks from chaetiger 17)]. One specimen, S1R2, Feb. 2018 [anterior fragment (3.5 mm long, 0.5 mm wide, 27 chaetigers; first dorsal hooks from chaetiger 14)]. One specimen, S2R2C1, Feb. 2018 [anterior fragment (3.7 mm long, 0.8 mm wide, 26 chaetigers; first dorsal hooks from chaetiger 21)]. One specimen, S3R1C1, Feb. 2018 [postlarva (1 mm long, 0.2 mm wide, 13 chaetigers; first dorsal hooks from chaetiger 9)]. Four specimens for SEM (ECOSUR).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="21" type="description">
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<paragraph pageId="0" pageNumber="21">Description.</paragraph>
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<paragraph pageId="0" pageNumber="21">
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Prostomium blunt, two or three times wider than long (
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Figs 3A, B</figureCitation>
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,
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">4A, B</figureCitation>
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). Palpophores massive, palpostyles barely projected (
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">Fig. 4C</figureCitation>
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); interpalpal area distinct, anteriorly depressed, slightly expanded posteriorly. Antennae tapered, median one two or three times longer than laterals, laterals surpassing tips of palps, median antenna reaching chaetiger 6 or 7. Lateral antennal depressions indistinct.
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</paragraph>
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<caption doi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" start="Figure 3" startId="F3">
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<paragraph pageId="0" pageNumber="21">
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<emphasis bold="true" pageId="0" pageNumber="21">Figure 3.</emphasis>
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<taxonomicName class="Polychaeta" family="Pilargidae" genus="Sigambra" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sigambra grubii" order="Phyllodocida" pageId="0" pageNumber="21" phylum="Annelida" rank="species" species="grubii">
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<emphasis italics="true" pageId="0" pageNumber="21">Sigambra grubii</emphasis>
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</taxonomicName>
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topotype, small specimen (ECOSUR SEM P1)
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<emphasis bold="true" pageId="0" pageNumber="21">A</emphasis>
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anterior region, dorsal view
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<emphasis bold="true" pageId="0" pageNumber="21">B</emphasis>
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same, close-up of anterior end
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<emphasis bold="true" pageId="0" pageNumber="21">C</emphasis>
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right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore)
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<emphasis bold="true" pageId="0" pageNumber="21">D</emphasis>
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same, pectinate chaetae
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<emphasis bold="true" pageId="0" pageNumber="21">E</emphasis>
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same, another parapodium, pectinate chaetae
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<emphasis bold="true" pageId="0" pageNumber="21">F</emphasis>
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same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="21">A, F</emphasis>
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), 110
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="21">B</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="21">C</emphasis>
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), 22
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="21">D</emphasis>
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), 12
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(
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<emphasis bold="true" pageId="0" pageNumber="21">E</emphasis>
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).
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</paragraph>
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</caption>
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<paragraph pageId="0" pageNumber="21">
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Pharynx not exposed (
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">Fig. 4C</figureCitation>
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), with 14 thick, prismatic papillae, four lateral ones larger; tips indistinct. Basal pharynx apparently smooth.
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</paragraph>
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<paragraph pageId="0" pageNumber="21">
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Tentacular segment 4-5 times wider than long, with a single transverse row of globular tubercles, with two or three additional short middorsal series; dorsal tentacular cirri slightly longer than ventral ones, as long (
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">Fig. 4A</figureCitation>
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) or half as long (
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Fig. 3A, B</figureCitation>
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) as dorsal cirri of chaetiger 1.
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</paragraph>
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<paragraph pageId="0" pageNumber="21">
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Parapodial cirri tapered throughout body. Dorsal cirri slightly expanded basally, longer than ventral ones. Ventral cirri as long as neurochaetal lobes in anterior and median chaetigers, longer in posterior ones, missing on chaetiger 2. Prechaetal lobes truncate, projected along its upper margin (
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Fig. 3C</figureCitation>
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), postchaetal lobes long, acute. Anterior and median parapodia with hypertrophied gonopores, margin granulose (
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Fig. 3C</figureCitation>
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, arrow).
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</paragraph>
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<paragraph pageId="0" pageNumber="21">
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Notochaetae include dorsal hooks from chaetiger 9-21 (size related), barely exposed initially, handles progressively exposed, without accessory capillaries. Neurochaetae include two or three supracicular shorter wider pectinates (
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<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">Fig. 4F, G</figureCitation>
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), sometimes with tiny paired denticles along each main tooth, approximately five infra-acicular narrower pectinates (
|
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<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Fig. 3D, E</figureCitation>
|
||
), and abundant finely denticulate capillaries (
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Fig. 3E</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="21">
|
||
Posterior region tapered into a truncate cone (
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Sigambra grubii topotype, small specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C right parapodium, median chaetiger, of larger specimen (6.5 mm long), anterior view (arrow points to gonopore) D same, pectinate chaetae E same, another parapodium, pectinate chaetae F same, posterior region, dorsal view (asterisk indicates last chaetiger with notohooks). Scale bars: 200 µm (A, F), 110 µm (B), 100 µm (C), 22 µm (D), 12 µm (E)." figureDoi="10.3897/zookeys.893.39594.figure3" httpUri="https://binary.pensoft.net/fig/361260" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure3">Figs 3F</figureCitation>
|
||
,
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Sigambra grubii topotypes, large specimen (ECOSUR SEM P 1) A anterior region, dorsal view B same, close-up of anterior end C another specimen, anterior end, frontal view D same, posterior region (asterisk indicates last chaetiger with notohooks) E specimen in A, median chaetigers (arrow points enlarged chaetae) F pectinate chaetae G same, detail showing bipinnate denticulation. Scale bars:: 280 µm (A), 250 µm (B), 170 µm (C), 110 µm (D), 230 µm (E), 8 µm (F), 2 µm (G)." figureDoi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" tableDoi="10.3897/zookeys.893.39594.figure4">4D</figureCitation>
|
||
); last 4-7 chaetigers without hooks. Pygidium with two ventrolateral anal cirri, as long as last eight chaetigers.
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.893.39594.figure4" httpUri="https://binary.pensoft.net/fig/361261" pageId="0" pageNumber="21" start="Figure 4" startId="F4">
|
||
<paragraph pageId="0" pageNumber="21">
|
||
<emphasis bold="true" pageId="0" pageNumber="21">Figure 4.</emphasis>
|
||
<taxonomicName class="Polychaeta" family="Pilargidae" genus="Sigambra" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sigambra grubii" order="Phyllodocida" pageId="0" pageNumber="21" phylum="Annelida" rank="species" species="grubii">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">Sigambra grubii</emphasis>
|
||
</taxonomicName>
|
||
topotypes, large specimen (ECOSUR SEM P1)
|
||
<emphasis bold="true" pageId="0" pageNumber="21">A</emphasis>
|
||
anterior region, dorsal view
|
||
<emphasis bold="true" pageId="0" pageNumber="21">B</emphasis>
|
||
same, close-up of anterior end
|
||
<emphasis bold="true" pageId="0" pageNumber="21">C</emphasis>
|
||
another specimen, anterior end, frontal view
|
||
<emphasis bold="true" pageId="0" pageNumber="21">D</emphasis>
|
||
same, posterior region (asterisk indicates last chaetiger with notohooks)
|
||
<emphasis bold="true" pageId="0" pageNumber="21">E</emphasis>
|
||
specimen in A, median chaetigers (arrow points enlarged chaetae)
|
||
<emphasis bold="true" pageId="0" pageNumber="21">F</emphasis>
|
||
pectinate chaetae
|
||
<emphasis bold="true" pageId="0" pageNumber="21">G</emphasis>
|
||
same, detail showing bipinnate denticulation. Scale bars:: 280
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">A</emphasis>
|
||
), 250
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">B</emphasis>
|
||
), 170
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">C</emphasis>
|
||
), 110
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">D</emphasis>
|
||
), 230
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">E</emphasis>
|
||
), 8
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">F</emphasis>
|
||
), 2
|
||
<normalizedToken originalValue="µm">µm</normalizedToken>
|
||
(
|
||
<emphasis bold="true" pageId="0" pageNumber="21">G</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="21" type="remarks">
|
||
<paragraph pageId="0" pageNumber="21">Remarks.</paragraph>
|
||
<paragraph pageId="0" pageNumber="21">
|
||
As indicated in the key below,
|
||
<taxonomicName class="Polychaeta" family="Pilargidae" genus="Sigambra" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sigambra grubii" order="Phyllodocida" pageId="0" pageNumber="21" phylum="Annelida" rank="species" species="grubii">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">Sigambra grubii</emphasis>
|
||
</taxonomicName>
|
||
<normalizedToken originalValue="Müller">Mueller</normalizedToken>
|
||
, 1858 resembles
|
||
<taxonomicName lsidName="S. hernandezi" pageId="0" pageNumber="21" rank="species" species="hernandezi">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">S. hernandezi</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. by having dorsal hooks without accessory capillaries. Their main differences are in the size of median antenna, and in the number of posterior chaetigers without hooks. In
|
||
<taxonomicName lsidName="S. grubii" pageId="0" pageNumber="21" rank="species" species="grubii">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">S. grubii</emphasis>
|
||
</taxonomicName>
|
||
the median antenna is medium-sized, reaching chaetiger 3 or 4, and there are 4-6 posterior chaetigers without hooks, whereas in
|
||
<taxonomicName lsidName="S. hernandezi" pageId="0" pageNumber="21" rank="species" species="hernandezi">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">S. hernandezi</emphasis>
|
||
</taxonomicName>
|
||
the median antenna is shorter, reaching chaetiger 2 or 3, and there are only two posterior hookless chaetigers. Another subtle difference is the relative size of papillae along body: which are larger in
|
||
<taxonomicName lsidName="S. grubii" pageId="0" pageNumber="21" rank="species" species="grubii">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">S. grubii</emphasis>
|
||
</taxonomicName>
|
||
compared to
|
||
<taxonomicName lsidName="S. hernandezi" pageId="0" pageNumber="21" rank="species" species="hernandezi">
|
||
<emphasis italics="true" pageId="0" pageNumber="21">S. hernandezi</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="21" type="distribution">
|
||
<paragraph pageId="0" pageNumber="21">Distribution.</paragraph>
|
||
<paragraph pageId="0" pageNumber="21">
|
||
The species was described from
|
||
<normalizedToken originalValue="Florianópolis">Florianopolis</normalizedToken>
|
||
, southern Brazil, and although it has been reported from a wide bathymetric range along the Brazilian coast, further investigations of this material might show the species to be restricted to shallow water sediments. An interesting fact about Ilha do Desterro (type locality), former name for
|
||
<normalizedToken originalValue="Florianópolis">Florianopolis</normalizedToken>
|
||
is the origin of the name.
|
||
<normalizedToken originalValue="Florianópolis">Florianopolis</normalizedToken>
|
||
was meant to be a tribute to Marshal Floriano Peixoto, the second President (1891-1894) of the Republic of the United States of Brazil, by combining the first name with the Greek term
|
||
<emphasis italics="true" pageId="0" pageNumber="21">polis</emphasis>
|
||
, meaning city. Up to 1893, the city was called Nossa Senhora do Desterro (Our Lady of Banishment) or simply Desterro.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |