266 lines
43 KiB
XML
266 lines
43 KiB
XML
<document id="21FACBC9A97DE2F9125B80833EFAEAC4" ID-CLB-Dataset="32068" ID-DOI="10.5281/zenodo.893894" ID-GBIF-Dataset="2bb49143-5cbd-42f7-9689-de741f351ff7" ID-ISSN="1175-5326" ID-Zenodo-Dep="893894" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1505716619524" checkinUser="plazi" docAuthor="C. B. Cameron, C. Deland & T. H. Bullock" docDate="2010" docId="68014E2EFD3EFFA7B8DDFE82FA46FEDE" docLanguage="en" docName="zt02483p022.pdf.imf" docOrigin="Zootaxa 2483" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Saccoglossus porochordus Cameron, Deland & Bullock, 2010, n. sp." docType="treatment" docVersion="7" lastPageNumber="6" masterDocId="94383656FD3CFFA2B84AFFF5FFC7FFB2" masterDocTitle="A revision of the genus Saccoglossus (Hemichordata: Enteropneusta: Harrimaniidae) with taxonomic descriptions of five new species from the Eastern Pacific" masterLastPageNumber="22" masterPageNumber="1" pageNumber="3" updateTime="1698468634881" updateUser="ExternalLinkService">
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<mods:titleInfo id="0419BF8F00B541BF29DB602DD94757B4">
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<mods:title id="CE1943CE5384EE56CC52198C53335178">A revision of the genus Saccoglossus (Hemichordata: Enteropneusta: Harrimaniidae) with taxonomic descriptions of five new species from the Eastern Pacific</mods:title>
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<mods:namePart id="064FEC5D82A4A5128A6DFDE9E73174D4">C. B. Cameron</mods:namePart>
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<mods:namePart id="6F0AC6283CFBA5D337B0087F82565143">C. Deland</mods:namePart>
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<mods:roleTerm id="DD0B8FF52BE425078FFD581BB188B7DF">Author</mods:roleTerm>
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<mods:namePart id="5B23D4D60022DFB24406B611EE927C26">T. H. Bullock</mods:namePart>
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<mods:typeOfResource id="302819ECD23BFCDD4C6F4FD109D1BE9E">text</mods:typeOfResource>
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<mods:title id="E162EFF76576B63EAED069CCDEF9B7A5">Zootaxa</mods:title>
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<mods:date id="221E70AB4521C9D8A1527A83AFD59BDA">2010</mods:date>
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<mods:number id="C62C2FCDF01B845799B79CB25BEA8930">2010-05-25</mods:number>
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<mods:number id="6FDCB1DCE775DB87F490224CB14DDEFC">2483</mods:number>
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<mods:identifier id="89282C841C02EF8BD983B88A7D6B09C2" type="CLB-Dataset">32068</mods:identifier>
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<mods:identifier id="624009CA85D10B5CC9C858ABDF1A3E65" type="DOI">10.5281/zenodo.893894</mods:identifier>
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<treatment id="68014E2EFD3EFFA7B8DDFE82FA46FEDE" ID-DOI="http://doi.org/10.5281/zenodo.6201827" ID-GBIF-Taxon="134090658" ID-Zenodo-Dep="6201827" LSID="urn:lsid:plazi:treatment:68014E2EFD3EFFA7B8DDFE82FA46FEDE" httpUri="http://treatment.plazi.org/id/68014E2EFD3EFFA7B8DDFE82FA46FEDE" lastPageId="5" lastPageNumber="6" pageId="2" pageNumber="3">
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<subSubSection id="A8B2ACB3FD3EFFA0B8DDFE82FEBBFE06" pageId="2" pageNumber="3" type="nomenclature">
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<paragraph id="E017FF38FD3EFFA0B8DDFE82FDE7FE23" blockId="2.[151,544,375,436]" box="[151,544,375,401]" pageId="2" pageNumber="3">
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<heading id="BB5F4854FD3EFFA0B8DDFE82FDE7FE23" bold="true" box="[151,544,375,401]" fontSize="11" level="1" pageId="2" pageNumber="3" reason="1">
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<emphasis id="D2DC232AFD3EFFA0B8DDFE82FDE7FE23" bold="true" box="[151,544,375,401]" pageId="2" pageNumber="3">
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<taxonomicName id="27A884BBFD3EFFA0B8DDFE82FE10FE23" ID-CoL="4TX3G" box="[151,471,375,401]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="2" pageNumber="3" phylum="Hemichordata" rank="species" species="porochordus" status="sp. nov.">
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<emphasis id="D2DC232AFD3EFFA0B8DDFE82FE10FE23" bold="true" box="[151,471,375,401]" italics="true" pageId="2" pageNumber="3">Saccoglossus porochordus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="C9EF9E51FD3EFFA0B994FE82FDE7FE23" box="[478,544,375,401]" pageId="2" pageNumber="3" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="E017FF38FD3EFFA0B8DDFE6FFEBBFE06" blockId="2.[151,544,375,436]" box="[151,380,410,436]" pageId="2" pageNumber="3">
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(
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<figureCitation id="7893E3BDFD3EFFA0B8D5FE6FFEE4FE06" box="[159,291,410,436]" captionStart="FIGURE 1" captionStartId="3.[151,255,1816,1840]" captionTargetBox="[212,1381,197,1780]" captionTargetId="figure@3.[212,1381,197,1780]" captionTargetPageId="3" captionText="FIGURE 1. Photographs of fixed specimens from the NMNH (Smithsonian). With the exception of A and F, all of the specimens have lost the anterior end of the proboscis. A, Photograph of a coiled specimen of Saccoglossus porochordus n. sp. showing the proboscis and dorsal side. B, Photograph of the ventral side of S. porochordus n. sp. C, Photograph of the dorsal side of S. rhabdorhynchus n. sp. D, Photograph of the lateral side of S. rhabdorhynchus n. sp. E, Photograph of the right side of S. shumaginensis n. sp. F, Photograph of the left side of S. shumaginensis n. sp. G, Photograph of the right side of S. sonorensis n. sp. H, Photograph of the left side of S. sonorensis n. sp. c, collar; p, proboscis; t, trunk. Scale bars = 5 mm." httpUri="https://zenodo.org/record/893896/files/figure.png" pageId="2" pageNumber="3">Figs 1A, B</figureCitation>
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; 2A–F)
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</paragraph>
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</subSubSection>
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<subSubSection id="A8B2ACB3FD3EFFA0B8DDFE10FADAFD6D" pageId="2" pageNumber="3" type="materials_examined">
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<paragraph id="E017FF38FD3EFFA0B8DDFE10FC9EFDDD" blockId="2.[151,1437,485,2004]" pageId="2" pageNumber="3">
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<materialsCitation id="50C0F565FD3EFFA0B8DDFE10FA50FE4D" ID-GBIF-Occurrence="1638540718" box="[151,1431,485,511]" location="Newport" pageId="2" pageNumber="3" specimenCount="1" stateProvince="Newport">
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<emphasis id="D2DC232AFD3EFFA0B8DDFE10FE56FE4D" bold="true" box="[151,401,485,511]" pageId="2" pageNumber="3">Material examined.</emphasis>
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Several (18) specimens have been collected from intertidal mud flat in
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<collectingRegion id="226C31DAFD3EFFA0BCBFFE10FA99FE4D" box="[1269,1374,485,511]" country="United Kingdom" name="Newport" pageId="2" pageNumber="3">Newport</collectingRegion>
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Bay
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</materialsCitation>
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,
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<materialsCitation id="50C0F565FD3EFFA0B8DDFDFFFC62FDF8" ID-GBIF-Occurrence="1638540720" collectorName="Professor G. E. & Corona & Mar Marine Laboratory" latitude="33.583332" location="California" longLatPrecision="1204" longitude="-117.88333" pageId="2" pageNumber="3" specimenCount="1" stateProvince="California" typeStatus="holotype">
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<collectingRegion id="226C31DAFD3EFFA0B8DDFDFFFED6FD96" box="[151,273,522,548]" country="United States of America" name="California" pageId="2" pageNumber="3">California</collectingRegion>
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, (
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<geoCoordinate id="859C99FFFD3EFFA0B96FFDFFFE50FD96" box="[293,407,522,548]" direction="north" orientation="latitude" pageId="2" pageNumber="3" precision="925" value="33.583332">33° 35' N</geoCoordinate>
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,
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<geoCoordinate id="859C99FFFD3EFFA0B9E9FDFFFDE0FD96" box="[419,551,522,548]" direction="west" orientation="longitude" pageId="2" pageNumber="3" precision="925" value="-117.88333">117° 53' W</geoCoordinate>
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) by
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<collectorName id="4D5D9AEEFD3EFFA0BA10FDFFFCC4FD96" box="[602,771,522,548]" pageId="2" pageNumber="3">Professor G.E.</collectorName>
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MacGinitie of the
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<collectorName id="4D5D9AEEFD3EFFA0BB95FDFFFBF2FD96" box="[991,1077,522,548]" pageId="2" pageNumber="3">Corona</collectorName>
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del
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<collectorName id="4D5D9AEEFD3EFFA0BC2DFDFFFABBFD96" box="[1127,1404,522,548]" pageId="2" pageNumber="3">Mar Marine Laboratory</collectorName>
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of the California Institute of Technology.
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<emphasis id="D2DC232AFD3EFFA0BA33FDC5FD33FDFB" box="[633,756,560,585]" italics="true" pageId="2" pageNumber="3">
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<typeStatus id="3F13419AFD3EFFA0BA33FDC5FD2AFDFB" box="[633,749,560,585]" pageId="2" pageNumber="3" type="holotype">Holotype</typeStatus>
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:
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</emphasis>
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Accession no
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</materialsCitation>
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. NMNH 58897, Smithsonian Institution.
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<emphasis id="D2DC232AFD3EFFA0B8DDFDA0FEDFFDDC" box="[151,280,597,622]" italics="true" pageId="2" pageNumber="3">Paratypes:</emphasis>
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Accession nos. 58899, 58916, 58917 and 58918.
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</paragraph>
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<paragraph id="E017FF38FD3EFFA0B88CFD8FFADAFD6D" blockId="2.[151,1437,485,2004]" pageId="2" pageNumber="3">
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<emphasis id="D2DC232AFD3EFFA0B88CFD8FFE67FD26" bold="true" box="[198,416,634,660]" pageId="2" pageNumber="3">External features</emphasis>
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(
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<figureCitation id="7893E3BDFD3EFFA0B9FAFD8FFD90FD26" box="[432,599,634,660]" captionStart="FIGURE 1" captionStartId="3.[151,255,1816,1840]" captionTargetBox="[212,1381,197,1780]" captionTargetId="figure@3.[212,1381,197,1780]" captionTargetPageId="3" captionText="FIGURE 1. Photographs of fixed specimens from the NMNH (Smithsonian). With the exception of A and F, all of the specimens have lost the anterior end of the proboscis. A, Photograph of a coiled specimen of Saccoglossus porochordus n. sp. showing the proboscis and dorsal side. B, Photograph of the ventral side of S. porochordus n. sp. C, Photograph of the dorsal side of S. rhabdorhynchus n. sp. D, Photograph of the lateral side of S. rhabdorhynchus n. sp. E, Photograph of the right side of S. shumaginensis n. sp. F, Photograph of the left side of S. shumaginensis n. sp. G, Photograph of the right side of S. sonorensis n. sp. H, Photograph of the left side of S. sonorensis n. sp. c, collar; p, proboscis; t, trunk. Scale bars = 5 mm." httpUri="https://zenodo.org/record/893896/files/figure.png" pageId="2" pageNumber="3">Figure 1 A, B</figureCitation>
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): The proboscis is
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<quantity id="275052DDFD3EFFA0BB77FD8FFC45FD26" box="[829,898,634,660]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="2" pageNumber="3" unit="mm" value="7.0">7 mm</quantity>
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long and
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<quantity id="275052DDFD3EFFA0BBB3FD8FFBF9FD26" box="[1017,1086,634,660]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="2" pageNumber="3" unit="mm" value="4.0">4 mm</quantity>
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broad, round in cross section but with a distinct middorsal longitudinal groove. The collar is
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<quantity id="275052DDFD3EFFA0BBD0FD55FC18FD08" box="[922,991,672,698]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="2" pageNumber="3" unit="mm" value="4.0">4 mm</quantity>
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long and
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<quantity id="275052DDFD3EFFA0BC10FD55FB71FD08" box="[1114,1206,672,698]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="2" pageNumber="3" unit="mm" value="3.5">3.5 mm</quantity>
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broad. The genital ridges commence about
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<quantity id="275052DDFD3EFFA0B9FEFD30FE3FFD6D" box="[436,504,709,735]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="2" pageNumber="3" unit="mm" value="8.0">8 mm</quantity>
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behind the collar. Ventral muscular ridges are absent from the trunk.
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</paragraph>
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</subSubSection>
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<subSubSection id="A8B2ACB3FD3EFFA0B88CFD1FFBD0F88D" pageId="2" pageNumber="3" type="description">
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<paragraph id="E017FF38FD3EFFA0B88CFD1FFB81FB76" blockId="2.[151,1437,485,2004]" pageId="2" pageNumber="3">
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<emphasis id="D2DC232AFD3EFFA0B88CFD1FFE5DFCB6" bold="true" box="[198,410,746,772]" pageId="2" pageNumber="3">Internal features</emphasis>
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(
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<figureCitation id="7893E3BDFD3EFFA0B9E6FD1FFDD5FCB6" box="[428,530,746,772]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Figure 2</figureCitation>
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): There is a fairly conspicuous circular muscle fiber layer in the proboscis, which is four to five fibers in thickness. The nerve fiber layer is thickened middorsally. The proboscis epidermis is about 200 µm thick. The longitudinal muscle fibers are arranged in 8 to 10 concentric rings. The proboscis cavity extends almost to the tip of the proboscis as a narrow lumen lined by connective tissue cells and circular fibers. The dorsal groove of the proboscis is lined by a glandular epithelium (
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<figureCitation id="7893E3BDFD3EFFA0BCF1FC75FADDFC28" box="[1211,1306,896,922]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2A</figureCitation>
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). The right and left halves of the glomerulus are confluent over the tip of the stomochord at the cardiac vesicle, and also meet along the midventral line. The stomochordal lumen extends nearly to its tip. There is a single midventral caecum in the stomochord lumen. Anterior to the midventral caecum, the stomochord has a deep dorsal pit descending into its dorsal wall. The ventral and dorsal septa are absent. The proboscis skeleton has an anterior marginal middorsal spine projecting forward into the stomochordal tissue (
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<figureCitation id="7893E3BDFD3EFFA0BC46FBCFFBAEFBE6" box="[1036,1129,1082,1108]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2B</figureCitation>
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). The keel of the skeleton may or may not be sharp but is deep, and short in the antero-posterior direction. The left proboscis canal is rather long, in the form of a narrow tube. At about the level of the skeletal plate, the left proboscis canal tends to occupy a middorsal position. Only the left proboscis pore is present (
|
||
<figureCitation id="7893E3BDFD3EFFA0BB96FB5FFBFEFB76" box="[988,1081,1194,1220]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="E017FF38FD3EFFA0B88CFB25FBC5F936" blockId="2.[151,1437,485,2004]" pageId="2" pageNumber="3">
|
||
The perihaemal cavities extend into the peduncle, stopping short of the proboscis pore by about 180 µm; they are confluent anteriorly (
|
||
<figureCitation id="7893E3BDFD3EFFA0B9BEFB00FD96FABD" box="[500,593,1269,1295]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2C</figureCitation>
|
||
). There is no neuropore on either ends of the collar. Both the dorsal and ventral collar mesenteries are complete. The collar epidermis is about 500 µm thick. The neural crest on the collar nerve cord appears at about the middle of the collar (
|
||
<figureCitation id="7893E3BDFD3EFFA0BB27FAB5FC0CFAE8" box="[877,971,1344,1370]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2D</figureCitation>
|
||
and inset). The septum separating the perihaemal cavities also extends anteriorly up to this level. At its commencement the neural crest is low and does not reach the basal membrane of the epidermis dorsally. But a little distance posteriorly it comes in direct communication with the epidermal nerve layer through a break in the basal membrane of the epidermis. The skeletal cornua reach almost to the posterior margin of the collar. They are confined to the dorsolateral aspect of the buccal cavity throughout (
|
||
<figureCitation id="7893E3BDFD3EFFA0BA54FA0FFDB8F9A6" box="[542,639,1530,1556]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2D</figureCitation>
|
||
). Peribuccal cavities extend only a short distance into the collar as triangular spaces on either side of the collar lumen. The collar canals are almost vertical in their disposition (
|
||
<figureCitation id="7893E3BDFD3EFFA0B8EAF9B0FEDAF9ED" box="[160,285,1605,1631]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2E, F</figureCitation>
|
||
). At the posterior end of the collar there is sometimes a middorsal narrow, deep groove entirely lined by mucus secreting cells, which appear stainless in section (
|
||
<figureCitation id="7893E3BDFD3EFFA0BBDDF99FFC32F936" box="[919,1013,1642,1668]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2G</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="E017FF38FD3EFFA0B88CF965FBD0F88D" blockId="2.[151,1437,485,2004]" pageId="2" pageNumber="3">
|
||
The branchial part of the pharynx is equal to or slightly larger than the ventral part. The tongues and septa are all in one plane. The nuclei in the ciliated branchial epithelium are disposed in several strata. Gonads, which are not lobed, appear about 1 or
|
||
<quantity id="275052DDFD3EFFA0BA15F92FFD7EF946" box="[607,697,1754,1780]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="2" pageNumber="3" unit="mm" value="1.5">1.5 mm</quantity>
|
||
behind the collar. The gonadal pores appear to be opposite and parallel to the branchial pores and they do not alternate. Ventral longitudinal muscle fibers of the trunk, though heavily developed, do not form ventral longitudinal ridges (
|
||
<figureCitation id="7893E3BDFD3EFFA0BBE1F8D0FBCEF88D" box="[939,1033,1829,1855]" captionStart="FIGURE 2" captionStartId="4.[151,257,1756,1780]" captionTargetBox="[235,1363,194,1726]" captionTargetId="figure@4.[232,1363,194,1726]" captionTargetPageId="4" captionText="FIGURE 2. Light micrographs of transverse sections of Saccoglossus porochordus n. sp.: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm." httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="2" pageNumber="3">Fig. 2H</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="A8B2ACB3FD3EFFA7B88CF8BFFE37FEF5" lastPageId="5" lastPageNumber="6" pageId="2" pageNumber="3" type="discussion">
|
||
<paragraph id="E017FF38FD3EFFA7B88CF8BFFE37FEF5" blockId="2.[151,1437,485,2004]" lastBlockId="5.[151,1436,152,364]" lastPageId="5" lastPageNumber="6" pageId="2" pageNumber="3">
|
||
<emphasis id="D2DC232AFD3EFFA0B88CF8BFFE87F8D6" bold="true" box="[198,320,1866,1892]" pageId="2" pageNumber="3">Remarks.</emphasis>
|
||
The nearest relationships of the form under consideration are with
|
||
<emphasis id="D2DC232AFD3EFFA0BC1AF8BEFA5BF8D6" box="[1104,1436,1867,1892]" italics="true" pageId="2" pageNumber="3">
|
||
<taxonomicName id="27A884BBFD3EFFA0BC1AF8BEFAE8F8D6" box="[1104,1327,1867,1892]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="2" pageNumber="3" phylum="Hemichordata" rank="species" species="rhabdorhynchus">S. rhabdorhynchus</taxonomicName>
|
||
,
|
||
<taxonomicName id="27A884BBFD3EFFA0BD71F8BEFA5BF8D6" authorityName="Brambell & Goodhart" authorityYear="1941" box="[1339,1436,1867,1892]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="2" pageNumber="3" phylum="Hemichordata" rank="species" species="horsti">S. horsti</taxonomicName>
|
||
</emphasis>
|
||
and
|
||
<taxonomicName id="27A884BBFD3EFFA0B882F885FEA5F83B" baseAuthorityName="Benham" baseAuthorityYear="1895" box="[200,354,1904,1929]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="2" pageNumber="3" phylum="Hemichordata" rank="species" species="otagoensis">
|
||
<emphasis id="D2DC232AFD3EFFA0B882F885FEA5F83B" box="[200,354,1904,1929]" italics="true" pageId="2" pageNumber="3">S. otagoensis</emphasis>
|
||
</taxonomicName>
|
||
, which it resembles in several characters such as the narrow proboscis coelom, several strata of nuclei in the ciliated branchial epithelium, unlobed gonads and the extent of the skeletal cornua in the collar. But in the possession of a dorsal pit on the stomochord and in the appearance of the genital ridges rather far from the collar (
|
||
<quantity id="275052DDFD39FFA7B998FF6DFDDEFF00" box="[466,537,152,178]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="5" pageNumber="6" unit="mm" value="8.0">8 mm</quantity>
|
||
) the present species differs from all other species of the genus. Among the
|
||
<taxonomicName id="27A884BBFD39FFA7B8DDFF48FEFDFF64" authorityName="Schimkewitsch" authorityYear="1892" box="[151,314,189,214]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="5" pageNumber="6" phylum="Hemichordata" rank="genus">
|
||
<emphasis id="D2DC232AFD39FFA7B8DDFF48FEFDFF64" box="[151,314,189,214]" italics="true" pageId="5" pageNumber="6">Saccoglossus</emphasis>
|
||
</taxonomicName>
|
||
species occurring in the Eastern Pacific region, it resembles in a few characters
|
||
<taxonomicName id="27A884BBFD39FFA7BD57FF48FA5BFF64" baseAuthorityName="Ritter" baseAuthorityYear="1902" box="[1309,1436,189,214]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="5" pageNumber="6" phylum="Hemichordata" rank="species" species="pusillus">
|
||
<emphasis id="D2DC232AFD39FFA7BD57FF48FA5BFF64" box="[1309,1436,189,214]" italics="true" pageId="5" pageNumber="6">S. pusillus</emphasis>
|
||
</taxonomicName>
|
||
(complete dorsal and ventral mesenteries in the collar; extent of the skeletal cornua in the collar), besides being closely related to
|
||
<taxonomicName id="27A884BBFD39FFA7B98FFEFDFD68FE93" box="[453,687,264,289]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="5" pageNumber="6" phylum="Hemichordata" rank="species" species="rhabdorhynchus">
|
||
<emphasis id="D2DC232AFD39FFA7B98FFEFDFD68FE93" box="[453,687,264,289]" italics="true" pageId="5" pageNumber="6">S. rhabdorhynchus</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<tableCitation id="AD2ACA83FD39FFA7BA8AFEFDFCD9FE90" box="[704,798,264,290]" captionStart="TABLE 1" captionStartId="12.[151,240,151,175]" captionText="TABLE 1. Comparison of external and internal characters of the species of the genus Saccoglossus. Characters from previously described species were obtained from the literature." pageId="5" pageNumber="6">Table 1</tableCitation>
|
||
). In view of these considerations it is necessary to recognize it as a new species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="B4D7AFB0FD3FFFA1B8DDF8EDFEA2F85D" httpUri="https://zenodo.org/record/893896/files/figure.png" pageId="3" pageNumber="4" targetBox="[212,1381,197,1780]" targetPageId="3">
|
||
<paragraph id="E017FF38FD3FFFA1B8DDF8EDFEA2F85D" blockId="3.[151,1437,1816,2031]" pageId="3" pageNumber="4">
|
||
<emphasis id="D2DC232AFD3FFFA1B8DDF8EDFEDDF882" bold="true" box="[151,282,1816,1840]" pageId="3" pageNumber="4">FIGURE 1.</emphasis>
|
||
Photographs of fixed specimens from the NMNH (Smithsonian). With the exception of A and F, all of the specimens have lost the anterior end of the proboscis. A, Photograph of a coiled specimen of
|
||
<taxonomicName id="27A884BBFD3FFFA1BCCAF8CDFA5BF8FD" box="[1152,1436,1848,1871]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="porochordus" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1BCCAF8CDFA5BF8FD" box="[1152,1436,1848,1871]" italics="true" pageId="3" pageNumber="4">Saccoglossus porochordus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1B8DDF8ADFF14F8DD" box="[151,211,1880,1904]" pageId="3" pageNumber="4" rank="species">
|
||
<emphasis id="D2DC232AFD3FFFA1B8DDF8ADFF0BF8C2" bold="true" box="[151,204,1880,1904]" pageId="3" pageNumber="4">n. sp</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
showing the proboscis and dorsal side. B, Photograph of the ventral side of
|
||
<taxonomicName id="27A884BBFD3FFFA1BBB6F8ADFB5AF8DD" box="[1020,1181,1880,1903]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="porochordus" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1BBB6F8ADFB5AF8DD" box="[1020,1181,1880,1903]" italics="true" pageId="3" pageNumber="4">S. porochordus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1BCE9F8ADFB18F8C2" bold="true" box="[1187,1247,1880,1904]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1BCE9F8ADFB18F8C2" box="[1187,1247,1880,1904]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
C, Photograph of the dorsal side of
|
||
<taxonomicName id="27A884BBFD3FFFA1B91DF88DFDE7F83D" box="[343,544,1912,1935]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="rhabdorhynchus" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1B91DF88DFDE7F83D" box="[343,544,1912,1935]" italics="true" pageId="3" pageNumber="4">S. rhabdorhynchus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1BA6DF88DFDA3F822" bold="true" box="[551,612,1912,1936]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1BA6DF88DFDA3F822" box="[551,612,1912,1936]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
D, Photograph of the lateral side of
|
||
<taxonomicName id="27A884BBFD3FFFA1BBA4F88DFB7FF83D" box="[1006,1208,1912,1935]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="rhabdorhynchus" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1BBA4F88DFB7FF83D" box="[1006,1208,1912,1935]" italics="true" pageId="3" pageNumber="4">S. rhabdorhynchus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1BCF5F88DFB3CF822" bold="true" box="[1215,1275,1912,1936]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1BCF5F88DFB3CF822" box="[1215,1275,1912,1936]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
E, Photograph of the right side of
|
||
<taxonomicName id="27A884BBFD3FFFA1B929F86DFDDCF81D" box="[355,539,1944,1967]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="shumaginensis" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1B929F86DFDDCF81D" box="[355,539,1944,1967]" italics="true" pageId="3" pageNumber="4">S. shumaginensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1BA68F86DFD99F802" bold="true" box="[546,606,1944,1968]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1BA68F86DFD99F802" box="[546,606,1944,1968]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
F, Photograph of the left side of
|
||
<taxonomicName id="27A884BBFD3FFFA1BBF4F86DFBB2F81D" box="[958,1141,1944,1967]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="shumaginensis" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1BBF4F86DFBB2F81D" box="[958,1141,1944,1967]" italics="true" pageId="3" pageNumber="4">S. shumaginensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1BC36F86DFB7FF802" bold="true" box="[1148,1208,1944,1968]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1BC36F86DFB7FF802" box="[1148,1208,1944,1968]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
G, Photograph of the right side of
|
||
<taxonomicName id="27A884BBFD3FFFA1B96EF84DFE74F87D" box="[292,435,1976,1999]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="sonorensis" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1B96EF84DFE74F87D" box="[292,435,1976,1999]" italics="true" pageId="3" pageNumber="4">S. sonorensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1B9F1F84DFE3EF862" bold="true" box="[443,505,1976,2000]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1B9F1F84DFE3EF862" box="[443,505,1976,2000]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
H, Photograph of the left side of
|
||
<taxonomicName id="27A884BBFD3FFFA1BB27F84DFC3AF87D" box="[877,1021,1976,1999]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="3" pageNumber="4" phylum="Hemichordata" rank="species" species="sonorensis" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD3FFFA1BB27F84DFC3AF87D" box="[877,1021,1976,1999]" italics="true" pageId="3" pageNumber="4">S. sonorensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD3FFFA1BC4EF84DFB85F862" bold="true" box="[1028,1090,1976,2000]" pageId="3" pageNumber="4">
|
||
<taxonomicNameLabel id="C9EF9E51FD3FFFA1BC4EF84DFB85F862" box="[1028,1090,1976,2000]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
c, collar; p, proboscis; t, trunk. Scale bars = 5 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="B4D7AFB0FD38FFA6B8DDF929FCCCF846" httpUri="https://zenodo.org/record/893898/files/figure.png" pageId="4" pageNumber="5" targetBox="[235,1363,194,1726]" targetPageId="4">
|
||
<paragraph id="E017FF38FD38FFA6B8DDF929FCCCF846" blockId="4.[151,1436,1756,2037]" pageId="4" pageNumber="5">
|
||
<emphasis id="D2DC232AFD38FFA6B8DDF929FED9F946" bold="true" box="[151,286,1756,1780]" pageId="4" pageNumber="5">FIGURE 2.</emphasis>
|
||
Light micrographs of transverse sections of
|
||
<taxonomicName id="27A884BBFD38FFA6BB5BF928FBF1F946" box="[785,1078,1757,1780]" class="Enteropneusta" family="Harrimaniidae" genus="Saccoglossus" kingdom="Animalia" pageId="4" pageNumber="5" phylum="Hemichordata" rank="species" species="porochordus" status="sp. nov.">
|
||
<emphasis id="D2DC232AFD38FFA6BB5BF928FBF1F946" box="[785,1078,1757,1780]" italics="true" pageId="4" pageNumber="5">Saccoglossus porochordus</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="D2DC232AFD38FFA6BC74F929FBBAF946" bold="true" box="[1086,1149,1756,1780]" pageId="4" pageNumber="5">
|
||
<taxonomicNameLabel id="C9EF9E51FD38FFA6BC74F929FBBAF946" box="[1086,1149,1756,1780]" pageId="4" pageNumber="5" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
: A, Proboscis with heartkidney complex. B, Heart-kidney complex. C, Proboscis neck. D, Anterior region of the collar. Inset: Dorsal collar nerve cord and crest. E, Posterior region of the collar. F, Collar canal. G, Dorsal groove of the collar. H, Anterior pharyngeal region of the trunk. a, axons; bs, branchial sac; bv, blood vessel; cb, cell bodies; cc, collar canal; cl, collar lumen; clm, collar longitudinal muscles; cv, cardiac vesicle; dg, dorsal groove; g, glomerulus; gb, gill bar; go, gonad; mc, mucous cells; nc, nerve cord; ncc, nerve cord crest; pc, proboscis coelom; phd, periheamal diverticulum; pl, pharynx lumen; plm, proboscis longitudinal muscles; pp, proboscis pore; pv, proboscis vesicle; s, stomochord; sc, skeletal cornua; sk, skeletal keel; sp, skeletal plate; ss, skeletal spine; tlm, trunk longitudinal muscles; vm, ventral mesentery. Scale bars A, D and F = 750 µm; B and C = 300 µm; D inset and E inset = 200 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="A8B2ACB3FD39FFA7B88CFEA7FA46FEDE" box="[198,1409,338,364]" pageId="5" pageNumber="6" type="etymology">
|
||
<paragraph id="E017FF38FD39FFA7B88CFEA7FA46FEDE" blockId="5.[151,1436,152,364]" box="[198,1409,338,364]" pageId="5" pageNumber="6">
|
||
<emphasis id="D2DC232AFD39FFA7B88CFEA7FE94FEDE" bold="true" box="[198,339,338,364]" pageId="5" pageNumber="6">Etymology.</emphasis>
|
||
The trivial name is derived from the fact that the stomochord bears a pit on the dorsal side.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |