174 lines
16 KiB
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174 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.367.6038" ID-GBIF-Dataset="bf0d7c12-684b-4965-87ea-c188d4fd53c3" ID-PMC="PMC3904136" ID-Pensoft-Pub="1313-2970-367-1" ID-PubMed="24478574" ModsDocAuthor="" ModsDocDate="2014" ModsDocID="1313-2970-367-1" ModsDocOrigin="ZooKeys 367" ModsDocTitle="A new species of Amphictene (Annelida, Pectinariidae) from the Gulf of Mexico, with a redescription of Amphictene guatemalensis (Nilsson, 1928)" checkinTime="1451246464022" checkinUser="pensoft" docAuthor="Garcia-Garza, Maria E. & de Leon-Gonzalez, J. A." docDate="2014" docId="5819D13D5236CD159D5737894C487415" docLanguage="en" docName="ZooKeys 367: 1-9" docOrigin="ZooKeys 367" docSource="http://dx.doi.org/10.3897/zookeys.367.6038" docTitle="Amphictene helenae Garcia-Garza & Leon-Gonzalez, 2014, sp. n." docType="treatment" docVersion="3" lastPageNumber="4" masterDocId="112F6C28455E7F613814FFDAFF83137C" masterDocTitle="A new species of Amphictene (Annelida, Pectinariidae) from the Gulf of Mexico, with a redescription of Amphictene guatemalensis (Nilsson, 1928)" masterLastPageNumber="9" masterPageNumber="1" pageNumber="3" updateTime="1668157402572" 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 Gulf of Mexico, with a redescription of Amphictene guatemalensis (Nilsson, 1928)</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>Garcia-Garza, Maria 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>de Leon-Gonzalez, J. A.</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>2014</mods:date>
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<mods:detail type="volume">
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<mods:number>367</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>9</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.367.6038</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.367.6038</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-367-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152050361" LSID="urn:lsid:plazi:treatment:5819D13D5236CD159D5737894C487415" httpUri="http://treatment.plazi.org/id/5819D13D5236CD159D5737894C487415" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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<subSubSection pageId="2" pageNumber="3" type="nomenclature">
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<paragraph pageId="2" pageNumber="3">
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<taxonomicName LSID="http://zoobank.org/5752E5B9-4787-4D94-9BBC-F597566C5328" class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene helenae" order="Terebellida" pageId="2" pageNumber="3" phylum="Annelida" rank="species" species="helenae">
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<pageBreakToken pageId="2" pageNumber="3" start="start">Amphictene</pageBreakToken>
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helenae
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</taxonomicName>
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<taxonomicNameLabel pageId="2" pageNumber="3">sp. n.</taxonomicNameLabel>
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Figure 2
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="reference_group">
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<paragraph pageId="2" pageNumber="3">
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene" order="Terebellida" pageId="2" pageNumber="3" phylum="Annelida" rank="genus">Amphictene</taxonomicName>
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sp. A.Wolf, 1984: 50-4-6 fig. 50-1, 2 a-j.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="type material">
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<paragraph pageId="2" pageNumber="3">Type material.</paragraph>
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<paragraph pageId="2" pageNumber="3">
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Holotype (UANL-7824); Paratype (LACM-AHF-Poly 5741) Bahamintas Beach, Ciudad del Carmen, Campeche,
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<normalizedToken originalValue="México">Mexico</normalizedToken>
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, St. 2, [
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="18.699999">18°41'60"N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="15" value="-91.683334">91°41'00"W</geoCoordinate>
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], 0.50 m deep, January 3, 2011, coll. ME
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<normalizedToken originalValue="García-Garza">Garcia-Garza</normalizedToken>
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and JH
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<normalizedToken originalValue="Landín-Delgado">Landin-Delgado</normalizedToken>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="3" type="additional material">
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<paragraph pageId="2" pageNumber="3">Additional material.</paragraph>
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<paragraph pageId="2" pageNumber="3">
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene" order="Terebellida" pageId="2" pageNumber="3" phylum="Annelida" rank="genus">Amphictene</taxonomicName>
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sp. A (USMN 86826) St. I-4, off Port
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<normalizedToken originalValue="O’Connor">O'Connor</normalizedToken>
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Texas [
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="28.383333">28°22'60"N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="15" value="-96.8">96°47'60"W</geoCoordinate>
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], STOCS expedition, 10 m deep, May 1976; (USMN 86827) St. M-21, off Texas [
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="27.9">27°53'60"N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="15" value="-97.36667">97°21'60"W</geoCoordinate>
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], IXTOC expedition, 10 m deep, December 1980; (USMN 86828) St. IV 2419, off Apalachicola river, Texas [
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.3">30°18'00"N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="15" value="-84.13333">84°08'00"W</geoCoordinate>
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], MAFLA expedition, 10 m deep, November 1977.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3" type="description">
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<paragraph pageId="2" pageNumber="3">Description.</paragraph>
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<paragraph pageId="2" pageNumber="3">Holotype complete, 25.7 mm long, 5.3 mm wide, with 19 segments, body robust and soft, light brown in color. Cephalic veil formed by one semicircular lobe inserted at base of paleae, forming shelf on buccal tentacles. Rim of cephalic veil with 38 long, thin cirri; each cirrus with subtriangular base, tapering toward distal end; curved toward dorsum (Fig. 2A4). Operculum covered by numerous papilliform structures randomly distributed; nine pairs of long and slightly curved paleae, sharply pointed. Opercular margin with 19 subtriangular cirri (Fig. 2B).</paragraph>
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<paragraph pageId="2" pageNumber="3">First segment with two pairs of tentacular cirri: first pair inserted on antero-posterior margin of segment; second pair arising from posterior middle part of segment, below first pair. Second segment with one pair of tentacular cirri inserted on lateral margin of segment, larger than cirri of first segment (Fig. 2C). Second segment dorsally indistinguishable, aerolated; with 8 pairs of thin and subtriangular ventral glandular cirri, attenuated distally; one plate with numerous small papillae in central part segment. Third segment with one middle ventral lobe and one pair of shorter lateral expansions. Fourth segment with six glandular lobes, robust and subtriangular, fused in pairs (Fig. 2A). Two pairs of latero-ventral branchiae inserted on segments 3 and 4, forming series of flat and free lamellae, fused only at base, anterior pair larger than posterior one (Fig. 2C).</paragraph>
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<paragraph pageId="2" pageNumber="3">Chaetigers 1-3 (segments 5-7) only with notopodia. Chaetigers 4-15 biramous with notopodia and neuropodia. Capillary notochaetae on chaetigers 1-15, some small, thinner, with external margin slightly denticulate, others bent with smooth margin, distally thin, slightly hirsute; bayonet-shaped notochaetae appear on chaetigers 4-15, with well-developed middle tooth, blade serrated throughout (Fig. 2D). Neuropodia wedge-shaped, slightly glandular, torus with numerous uncini arranged in single row. Neuropodial uncini with a group of 6-7 small apical teeth randomly placed, and two longitudinal rows, each one consisting of 5-6 larger teeth, and small group of basal teeth with undefined arrangement, decreasing in size towards base (Fig. 2E-F).</paragraph>
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<paragraph lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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Last three posterior segments, without noto- or neurochaetae, followed by five fused segments forming scaphe, clearly separated from abdomen, wider than longer,
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<pageBreakToken pageId="3" pageNumber="4" start="start">with</pageBreakToken>
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21 pairs of short and thick scaphodal hooks, golden in color, with brown margins (Fig. 2G). Five marginal lobes triangular-shaped, with one fold in antero-dorsal end, and margin somewhat crenulate; anal lobe with large anal papilla and three pairs of lateral papillae, in middle dorsal region (Fig. 2H).
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</paragraph>
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<paragraph pageId="3" pageNumber="4">Tube cone-shaped, made of cemented shell fragments of similar sizes, most of them clear, with few dark fragments (Fig. 2I).</paragraph>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figure 2.
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene helenae" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="helenae">Amphictene helenae</taxonomicName>
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. Holotype. A ventral view of anterior end B dorsal view of anterior end C lateral view of anterior end, showing tentacular cirri D notochaetae from 7th chaetiger E front view of bayonet shaped neurochaetae from 7th chaetiger F lateral view of neurochaetae from 7th chaetiger G dorsal view of scaphe (
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<normalizedToken originalValue="G’">G'</normalizedToken>
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) scaphal hooks detail H ventral view, anal papillae I tube of holotype. Bar scale = A, B, C, G, H = 1mm; D = 50mm E, F = 10mm; I = 3mm.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="remarks">
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<paragraph pageId="3" pageNumber="4">Remarks.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene helenae" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="helenae">Amphictene helenae</taxonomicName>
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sp. n., is similar to
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene guatemalensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="guatemalensis">Amphictene guatemalensis</taxonomicName>
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(Nilsson, 1928) and
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene catharinensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="catharinensis">Amphictene catharinensis</taxonomicName>
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(Grube, 1870) by having a glandular cirrus on the second segment and lobes on segment 4. Nevertheless, these species differ in some morphological characters:
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene helenae" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="helenae">Amphictene helenae</taxonomicName>
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sp. n., has three pairs of tentacular cirri, two pairs on the first segment, and a pair in the second one, while
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene guatemalensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="guatemalensis">Amphictene guatemalensis</taxonomicName>
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and
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene catharinensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="catharinensis">Amphictene catharinensis</taxonomicName>
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have only one pair in the first segment and a pair in the second one;
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene helenae" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="helenae">Amphictene helenae</taxonomicName>
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sp. n., has eight pairs of glandular cirri on the second segment, and six robust glandular lobes on the fourth segment, subtriangular, fused in pairs.
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene guatemalensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="guatemalensis">Amphictene guatemalensis</taxonomicName>
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has six pairs of glandular cirri in the second segment, two pairs of glandular subtriangular lobes in the fourth segment.
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene catharinensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="catharinensis">Amphictene catharinensis</taxonomicName>
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has17 or 18 glandular cirri on the second segment, in the fourth a central lobe with subtriangular lateral extensions and two pairs of free subtriangular broad lobes. Furthermore,
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene catharinensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="catharinensis">Amphictene catharinensis</taxonomicName>
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and
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene helenae" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="helenae">Amphictene helenae</taxonomicName>
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can be distinguished by the presence of a circular group of small glandular papillae between both lines of glandular cirri on the ventral side of the second segment, which is absent in
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene catharinensis" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="catharinensis">Amphictene catharinensis</taxonomicName>
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.
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</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Examination of the material described by
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<bibRefCitation pageId="3" pageNumber="4">Wolf (1984)</bibRefCitation>
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as
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<taxonomicName class="Polychaeta" family="Pectinariidae" genus="Amphictene" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amphictene" order="Terebellida" pageId="3" pageNumber="4" phylum="Annelida" rank="genus">Amphictene</taxonomicName>
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sp. A, from Florida and Texas, USA, and deposited at the USNM, indicated that it belongs to this new species, however, the specimens were found to be in poor condition.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="type locality">
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<paragraph pageId="3" pageNumber="4">Type locality.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Bahamintas Beach, Ciudad del Carmen, Campeche,
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<normalizedToken originalValue="México">Mexico</normalizedToken>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="distribution">
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<paragraph pageId="3" pageNumber="4">Distribution.</paragraph>
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<paragraph pageId="3" pageNumber="4">Gulf of Mexico.</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="etymology">
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<paragraph pageId="3" pageNumber="4">Etymology.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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The species is named in honour of Helena
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<normalizedToken originalValue="Landín">Landin</normalizedToken>
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<normalizedToken originalValue="García">Garcia</normalizedToken>
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, daughter of the first author.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |