264 lines
38 KiB
XML
264 lines
38 KiB
XML
<document id="2C4AA0CCA6D98CCE6EA51A515AF7D81B" ID-DOI="10.5852/ejt.2020.615" ID-GBIF-Dataset="b2465730-6237-4a14-a98d-7fd2d1096cb0" ID-Zenodo-Dep="3711000" ID-ZooBank="637FC87F-13B5-4B32-BC52-11A9B30ECF1D" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1584210958022" checkinUser="plazi" docAuthor="Galea, Horia R." docDate="2020" docId="03B520481A4FFFBB956E72A459DF8504" docLanguage="en" docName="ejt-615_galea.pdf.imf" docOrigin="European Journal of Taxonomy 615" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Lytocarpia fragilis Galea 2020, sp. nov." docType="treatment" docUuid="92370DAB-142D-4322-8CA0-DE8B96EA9CD4" docUuidSource="ZooBank" docVersion="6" lastPageNumber="25" masterDocId="FF8C58301A5AFFA3971777095A2A8450" masterDocTitle="Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program" masterLastPageNumber="47" masterPageNumber="1" pageNumber="22" updateTime="1698728323888" updateUser="plazi" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo id="DA39D7EF283ADBCBDDF8C391A50F1683">
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<mods:title id="FBEB05142D531252F53508D14AE01B29">Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program</mods:title>
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<mods:name id="9D0A7C615ED92FFD965C1B4DD5DB1303" type="personal">
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<mods:roleTerm id="9CC28984BBD8158441E73A6FCD0F590A">Author</mods:roleTerm>
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<mods:namePart id="BB2412EBB8879C8F44F0FD34F5328E89">Galea, Horia R.</mods:namePart>
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<mods:typeOfResource id="6A35245FEC1740EF7601CC8DE55F999F">text</mods:typeOfResource>
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<mods:title id="C3E497E0B1BC787E476CD74BD1C58EFA">European Journal of Taxonomy</mods:title>
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</mods:titleInfo>
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<mods:part id="3B6DA27933F6CE87E8CF96F885AFBC3E">
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<mods:date id="0FF58872DE0E7DE0B5343899A26388E2">2020</mods:date>
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<mods:number id="12B549FA973CDE204DF92C04B876E6AB">2020-03-13</mods:number>
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<mods:number id="43F16207D07A43B4D8992706C961D4FC">615</mods:number>
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<mods:classification id="EEAA93BB04E89A4C0FB22A9F5DDBC6F1">journal article</mods:classification>
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<mods:identifier id="4E493E2510CD87753C201F3077481247" type="DOI">10.5852/ejt.2020.615</mods:identifier>
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<mods:identifier id="198B1AA03A93CA94629E84E930AB847E" type="GBIF-Dataset">b2465730-6237-4a14-a98d-7fd2d1096cb0</mods:identifier>
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<mods:identifier id="48785FD5F347FA5085808E04DB94DB71" type="Zenodo-Dep">3711000</mods:identifier>
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<treatment id="03B520481A4FFFBB956E72A459DF8504" ID-DOI="http://doi.org/10.5281/zenodo.3718309" ID-GBIF-Taxon="162505297" ID-Zenodo-Dep="3718309" LSID="urn:lsid:zoobank.org:act:92370DAB-142D-4322-8CA0-DE8B96EA9CD4" httpUri="http://treatment.plazi.org/id/03B520481A4FFFBB956E72A459DF8504" lastPageId="24" lastPageNumber="25" pageId="21" pageNumber="22">
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<subSubSection id="C306C2D51A4FFFB6956E72A45EE581BB" pageId="21" pageNumber="22" type="nomenclature">
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<paragraph id="8BA3915E1A4FFFB6956E72A459908197" blockId="21.[357,1231,1452,1551]" box="[633,954,1452,1479]" pageId="21" pageNumber="22">
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<heading id="D0EB26321A4FFFB6956E72A459908197" box="[633,954,1452,1479]" centered="true" fontSize="11" level="2" pageId="21" pageNumber="22" reason="2">
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<taxonomicName id="4C1CEADD1A4FFFB6956E72A459728197" ID-CoL="849TQ" authority="Galea, 2020" authorityName="Galea" authorityYear="2020" box="[633,856,1452,1479]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="22" phylum="Cnidaria" rank="species" species="fragilis" status="sp. nov.">
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<emphasis id="B9684D4C1A4FFFB6956E72A459728197" bold="true" box="[633,856,1452,1479]" italics="true" pageId="21" pageNumber="22">Lytocarpia fragilis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A25BF0371A4FFFB6947772A459908197" box="[864,954,1453,1479]" pageId="21" pageNumber="22" rank="species">sp. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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<paragraph id="8BA3915E1A4FFFB6967272D85EE581BB" blockId="21.[357,1231,1452,1551]" box="[357,1231,1489,1515]" pageId="21" pageNumber="22">
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<uri id="FF8D9D5C1A4FFFB6967272D85EE581BB" box="[357,1231,1489,1515]" pageId="21" pageNumber="22">
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urn:lsid:zoobank.org:act:
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<uuid id="FFBAAB8B1A4FFFB6959572D85EE581BB" box="[642,1231,1489,1515]" pageId="21" pageNumber="22">92370DAB-142D-4322-8CA0-DE8B96EA9CD4</uuid>
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</uri>
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</paragraph>
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||
</subSubSection>
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<subSubSection id="C306C2D51A4FFFB695B672FC59B8825F" box="[673,914,1525,1551]" pageId="21" pageNumber="22" type="description">
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<paragraph id="8BA3915E1A4FFFB695B672FC59B8825F" blockId="21.[357,1231,1452,1551]" box="[673,914,1525,1551]" pageId="21" pageNumber="22">
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<figureCitation id="13278DDB1A4FFFB695B672FC58DF825F" box="[673,757,1525,1551]" captionStart="Fig" captionStartId="22.[189,231,1857,1883]" captionTargetBox="[192,1398,743,1815]" captionTargetId="figure@22.[189,1398,743,1815]" captionTargetPageId="22" captionText="Fig. 11. A. Lytocarpia brevirostris (Busk, 1852), hydrotheca from sample MNHN-IK-2015-514. — B–K. Lytocarpia fragilis sp. nov., from sample MNHN-IK-2015-523. A–B. Portions of stems in frontal (B) and dorsal (C) aspects. D–G. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view. H–I. Distal part of mesial nematotheca seen frontally (H) and apically (I). J–K. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3711020" httpUri="https://zenodo.org/record/3711020/files/figure.png" pageId="21" pageNumber="22">Figs 11</figureCitation>
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B–K, 12A–C
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</paragraph>
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</subSubSection>
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<subSubSection id="C306C2D51A4FFFB697AA713E5F3983BB" pageId="21" pageNumber="22" type="diagnosis">
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<paragraph id="8BA3915E1A4FFFB697AA713E5B1C8201" blockId="21.[189,310,1591,1617]" box="[189,310,1591,1617]" pageId="21" pageNumber="22">
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<heading id="D0EB26321A4FFFB697AA713E5B1C8201" bold="true" box="[189,310,1591,1617]" fontSize="11" level="3" pageId="21" pageNumber="22" reason="3">
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<emphasis id="B9684D4C1A4FFFB697AA713E5B1C8201" bold="true" box="[189,310,1591,1617]" pageId="21" pageNumber="22">Diagnosis</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BA3915E1A4FFFB697AA71615F3983BB" blockId="21.[189,1399,1639,2027]" pageId="21" pageNumber="22">
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<taxonomicName id="4C1CEADD1A4FFFB697AA71615B1782D1" authorityName="Kirchenpauer" authorityYear="1872" box="[189,317,1640,1665]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="22" phylum="Cnidaria" rank="genus">
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<emphasis id="B9684D4C1A4FFFB697AA71615B1782D1" box="[189,317,1640,1665]" italics="true" pageId="21" pageNumber="22">Lytocarpia</emphasis>
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</taxonomicName>
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with moderately tall, delicate colonies, with lightly fascicled, unbranched stems, divided into rather long internodes, each comprising 2–3 frontal nematothecae in a row, a lateral apophysis supporting a cladium with its conical nematotheca, and a couple of axillar nematothecae flanking the apophysis on each side of the stem. Cladia fairly close to one another, cormidia moderately long, with 6 intranodal septa, hydrotheca occupying distal ¾. Hydrotheca distinctly S-shaped, swollen basally, mesial nematotheca adnate for most of its length, free part projecting nearly upwards, and provided with large aperture behind an inwardly-rolled abaxial wall; lateral nematothecae tubular, with adaxially scooped walls, overtopping hydrothecal aperture. Rim with rounded-triangular median cusp, edges with two low, triangular cusps prolonged adaxially by a mere undulation. Gonosome an open corbula, distally on cladia, each internode with a costa and an axillar nematotheca; costae with a basal hydrotheca and a short appendage comprising 3–4 pairs of laterally-placed nematothecae; gonothecae lenticular.
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</paragraph>
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</subSubSection>
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<subSubSection id="C306C2D51A4CFFB597AA76025F148501" box="[189,1342,267,338]" pageId="22" pageNumber="23" type="etymology">
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<paragraph id="8BA3915E1A4CFFB597AA76025B6E8575" blockId="22.[189,1342,267,338]" box="[189,324,267,293]" pageId="22" pageNumber="23">
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<heading id="D0EB26321A4CFFB597AA76025B6E8575" bold="true" box="[189,324,267,293]" fontSize="11" level="3" pageId="22" pageNumber="23" reason="3">
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<emphasis id="B9684D4C1A4CFFB597AA76025B6E8575" bold="true" box="[189,324,267,293]" pageId="22" pageNumber="23">Etymology</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BA3915E1A4CFFB597AA76315F148501" blockId="22.[189,1342,267,338]" box="[189,1342,311,338]" pageId="22" pageNumber="23">
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From the Latin ‘
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<taxonomicName id="4C1CEADD1A4CFFB5966976315BF98502" authorityName="Galea" authorityYear="2020" box="[382,467,312,338]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="22" pageNumber="23" phylum="Cnidaria" rank="species" species="fragilis">
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<emphasis id="B9684D4C1A4CFFB5966976315BF98502" box="[382,467,312,338]" italics="true" pageId="22" pageNumber="23">frăgĭlis</emphasis>
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</taxonomicName>
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’, meaning ‘frail’, with reference to the delicate appearance of its colonies.
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</paragraph>
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</subSubSection>
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<subSubSection id="C306C2D51A4CFFB497AA767E59938110" lastPageId="23" lastPageNumber="24" pageId="22" pageNumber="23" type="materials_examined">
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<paragraph id="8BA3915E1A4CFFB597AA767E5B8085C1" blockId="22.[189,426,375,401]" box="[189,426,375,401]" pageId="22" pageNumber="23">
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<heading id="D0EB26321A4CFFB597AA767E5B8085C1" bold="true" box="[189,426,375,401]" fontSize="11" level="3" pageId="22" pageNumber="23" reason="3">
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<emphasis id="B9684D4C1A4CFFB597AA767E5B8085C1" bold="true" box="[189,426,375,401]" pageId="22" pageNumber="23">Material examined</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BA3915E1A4CFFB597FD76AD5B7685EE" blockId="22.[189,1399,420,513]" box="[234,348,420,446]" pageId="22" pageNumber="23">
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<emphasis id="B9684D4C1A4CFFB597FD76AD5B7685EE" bold="true" box="[234,348,420,446]" pageId="22" pageNumber="23">
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<typeStatus id="54A72FFC1A4CFFB597FD76AD5B7685EE" box="[234,348,420,446]" pageId="22" pageNumber="23" type="holotype">Holotype</typeStatus>
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</emphasis>
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</paragraph>
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<paragraph id="8BA3915E1A4CFFB597AA76CC5F5D8651" blockId="22.[189,1399,420,513]" pageId="22" pageNumber="23">
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<materialsCitation id="3B749B031A4CFFB597AA76CC5F5D8651" ID-GBIF-Occurrence="2575926604" collectingDate="2016-08-28" collectionCode="MNHN" collectorName="KANACONO" country="New Caledonia" elevation="463" latitude="-22.966667" location="stn DW 4770" longLatPrecision="1258" longitude="168.35" pageId="22" pageNumber="23" specimenCode="MNHN-IK-2015-523" specimenCount="1" stateProvince="PACIFIC OCEAN" typeStatus="holotype">
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<collectingRegion id="49D85FBC1A4CFFB597AA76CC5BB1858F" box="[189,411,453,479]" pageId="22" pageNumber="23">PACIFIC OCEAN</collectingRegion>
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•
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<specimenCount id="9D1A5AD71A4CFFB596AC76CC580C858F" box="[443,550,453,479]" pageId="22" pageNumber="23">1 colony</specimenCount>
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, devoid of its distal part, ca
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<quantity id="4CE43CBB1A4CFFB5949D76CC59F485B0" box="[906,990,453,480]" metricMagnitude="-2" metricUnit="m" metricValue="7.5" pageId="22" pageNumber="23" unit="cm" value="7.5">7.5 cm</quantity>
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high, fertile; off
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<collectingCountry id="F30BD1CE1A4CFFB593A176CF5F58858F" box="[1206,1394,453,480]" name="New Caledonia" pageId="22" pageNumber="23">New Caledonia</collectingCountry>
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,
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<location id="8EC3C7851A4CFFB597AA76EE5B7F8651" LSID="urn:lsid:plazi:treatment:03B520481A4FFFBB956E72A459DF8504:8EC3C7851A4CFFB597AA76EE5B7F8651" box="[189,341,487,513]" country="New Caledonia" latitude="-22.966667" longLatPrecision="1258" longitude="168.35" name="stn DW 4770" pageId="22" pageNumber="23" stateProvince="PACIFIC OCEAN">stn DW4770</location>
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;
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<geoCoordinate id="EE28F7991A4CFFB5964876EC5BE98651" box="[351,451,485,513]" degrees="22" direction="south" minutes="58" orientation="latitude" pageId="22" pageNumber="23" precision="925" value="-22.966667">22°58ʹ S</geoCoordinate>
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,
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<geoCoordinate id="EE28F7991A4CFFB596D876EC586F8651" box="[463,581,485,513]" degrees="168" direction="east" minutes="21" orientation="longitude" pageId="22" pageNumber="23" precision="925" value="168.35">168°21ʹ E</geoCoordinate>
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;
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<quantity id="4CE43CBB1A4CFFB5954776EF58FD8651" box="[592,727,486,513]" metricMagnitude="2" metricUnit="m" metricValue="4.625" metricValueMax="4.7" metricValueMin="4.55" pageId="22" pageNumber="23" unit="m" value="462.5" valueMax="470.0" valueMin="455.0">
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<elevation id="0031766D1A4CFFB5954776EF58FD8651" box="[592,727,486,513]" metricMagnitude="2" metricUnit="m" metricValue="4.625" metricValueMax="4.7" metricValueMin="4.55" pageId="22" pageNumber="23" unit="m" value="462.5" valueMax="470.0" valueMin="455.0">455–470 m</elevation>
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</quantity>
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||
;
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||
<date id="FFA2B79E1A4CFFB595F576EE59AB8650" box="[738,897,486,513]" pageId="22" pageNumber="23" value="2016-08-28">
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<collectingDate id="EFE64E761A4CFFB595F576EE59AB8650" box="[738,897,486,513]" pageId="22" pageNumber="23" value="2016-08-28">28 Aug. 2016</collectingDate>
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||
</date>
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||
;
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<collectorName id="26E9F4881A4CFFB5949B76EE5E1E8651" box="[908,1076,487,513]" pageId="22" pageNumber="23">KANACONO</collectorName>
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leg.;
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<specimenCode id="DBBA39251A4CFFB5936476EF5F598651" box="[1139,1395,486,513]" pageId="22" pageNumber="23">MNHN-IK-2015-523</specimenCode>
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.
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</materialsCitation>
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</paragraph>
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<paragraph id="8BA3915E1A4CFFB597AA752F5F5D863D" blockId="22.[189,334,550,575]" box="[189,1399,550,621]" lastBlockId="22.[189,1399,595,688]" pageId="22" pageNumber="23">
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<emphasis id="B9684D4C1A4CFFB597AA752F5B648610" bold="true" box="[189,334,550,576]" pageId="22" pageNumber="23">Description</emphasis>
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Colony erect, of a delicate appearance, comprising a single plume, originally taller than the 7.5 cm-
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</paragraph>
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<paragraph id="8BA3915E1A4CFFB497AA757D59938110" blockId="22.[189,1399,595,688]" lastBlockId="23.[189,1399,267,1345]" lastPageId="23" lastPageNumber="24" pageId="22" pageNumber="23">
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high fragment left after the breakage and subsequent loss of its distal part; arising from a rhizoid stolon firmly attached to hard substrate. Stem unbranched, lightly fascicled, grading to monosiphonic distally; main tube composed of a long (
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<quantity id="4CE43CBB1A4DFFB49523760258A28576" box="[564,648,267,294]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="23" pageNumber="24" unit="cm" value="3.5">3.5 cm</quantity>
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) proximal part devoid of hydrocladia but bearing large, saccate nematothecae in a single, frontal row, and a shorter part bearing cladia; both parts are separated by a short intervening prosegment with one frontal nematotheca, delimited at both ends by very oblique, deeply-cut nodes. Upper part divided, sporadically, into long segments by means of a few oblique nodes; segments further divided into regular, moderately long (
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<quantity id="4CE43CBB1A4DFFB49455769A59F385FD" box="[834,985,403,429]" metricMagnitude="-1" metricUnit="m" metricValue="7.6" metricValueMax="8.4" metricValueMin="6.8" pageId="23" pageNumber="24" unit="mm" value="760.0" valueMax="840.0" valueMin="680.0">680–840 µm</quantity>
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) internodes delimited by transverse nodes (
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<quantity id="4CE43CBB1A4DFFB4960176BC5B98859F" box="[278,434,437,464]" metricMagnitude="-1" metricUnit="m" metricValue="1.6" metricValueMax="1.7" metricValueMin="1.5" pageId="23" pageNumber="24" unit="mm" value="160.0" valueMax="170.0" valueMin="150.0">150–170 µm</quantity>
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wide), inconspicuous wherever the perisarc is thick, but becoming obvious in youngest parts; each internode with 2–3 frontal nematothecae in a single row, a short cladial apophysis with its basal, simple nematotheca mounted on an inconspicuous mamelon, a nematotheca lateral to the apophysis (axillar, in front of stem), as well as an axillar nematotheca on dorsal side of the stem. Frontal nematothecae large, saccate, with wide aperture behind, sometimes giving the impression that one or two lateral apertures are present, due to their inwardly-rolled abaxial walls. Cladia alternate, fairly close to one another on each row, up to
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<quantity id="4CE43CBB1A4DFFB495417589588D86CB" box="[598,679,640,667]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" pageId="23" pageNumber="24" unit="cm" value="1.3">1.3 cm</quantity>
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long, composed of up to 18 cormidia. The latter moderately long (
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<quantity id="4CE43CBB1A4DFFB4961575AB5BB186ED" box="[258,411,674,701]" metricMagnitude="-1" metricUnit="m" metricValue="7.1" metricValueMax="7.15" metricValueMin="7.05" pageId="23" pageNumber="24" unit="mm" value="710.0" valueMax="715.0" valueMin="705.0">705–715 µm</quantity>
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long,
|
||
<quantity id="4CE43CBB1A4DFFB496F075AB584B86ED" box="[487,609,674,701]" metricMagnitude="-2" metricUnit="m" metricValue="6.75" metricValueMax="7.0" metricValueMin="6.5" pageId="23" pageNumber="24" unit="mm" value="67.5" valueMax="70.0" valueMin="65.0">65–70 µm</quantity>
|
||
wide at node), accommodating a hydrotheca in their distal ¾, and its 3 associated nematothecae: one mesial and a pair of laterals; 6 intranodal projections of the perisarc: 4 given off from the adaxial wall of the hydrotheca, while the remaining 2 from the abaxial perisarc of the internode. Hydrotheca
|
||
<quantity id="4CE43CBB1A4DFFB4950F740158848772" box="[536,686,776,803]" metricMagnitude="-1" metricUnit="m" metricValue="4.8" metricValueMax="4.85" metricValueMin="4.75" pageId="23" pageNumber="24" unit="mm" value="480.0" valueMax="485.0" valueMin="475.0">475–485 µm</quantity>
|
||
deep, S-shaped in lateral view, lower half distinctly swollen when seen frontally; mesial nematotheca adnate for most of its length, leaving a short, free, bifid portion reaching the middle of the theca; aperture wide, abaxial wall inwardly-rolled; lateral nematothecae conical, with gutter-shaped apertures in their adaxial wall; hydrothecal aperture
|
||
<quantity id="4CE43CBB1A4DFFB4937E74675ED587D8" box="[1129,1279,878,904]" metricMagnitude="-1" metricUnit="m" metricValue="2.35" metricValueMax="2.4" metricValueMin="2.3" pageId="23" pageNumber="24" unit="mm" value="235.0" valueMax="240.0" valueMin="230.0">230–240 µm</quantity>
|
||
wide, rim with a prominent, rounded, abaxial cusp, lateral edges with two pairs of low, triangular cusps, prolonged adaxially by a mere undulation of the margin. Gonosome an open corbula on the modified distal portion of a cladium, after a sequence of 3–6 normal cormidia proximally; rachis divided into short internodes by means of transverse nodes; each internode with a costa (there is no distinct apophysis supporting it; costae alternate) and a large, saccate nematotheca (with gutter-shaped aperture) lateral to it; unlike the subsequent ones, the first internode of the corbula possesses an axillar nematotheca at junction between the insertion of costa and the internode; costae composed of a modified hydrotheca that retains its lateral nematothecae at their normal place, while the mesial one (with single, gutter-shaped aperture in this case) is placed a certain distance below the hydrothecal base, so as to allow the formation of a rib composed of about 3–4 pairs of nematothecae arranged along its length; except for hydrothecae of the 1
|
||
<superScript id="7C693C161A4DFFB4927C73B65F5C809D" attach="none" box="[1387,1398,1215,1229]" fontSize="6" pageId="23" pageNumber="24">st</superScript>
|
||
or 2
|
||
<superScript id="7C693C161A4DFFB497FC73E85AD680BF" attach="left" box="[235,252,1249,1263]" fontSize="6" pageId="23" pageNumber="24">nd</superScript>
|
||
rib, those placed more distally in the corbula possess an extra, gutter-shaped nematotheca on their dorsal side (compare
|
||
<figureCitation id="13278DDB1A4DFFB496A0720C58A8814F" box="[439,642,1285,1311]" captionStart="Fig" captionStartId="22.[189,231,1857,1883]" captionTargetBox="[192,1398,743,1815]" captionTargetId="figure@22.[189,1398,743,1815]" captionTargetPageId="22" captionText="Fig. 11. A. Lytocarpia brevirostris (Busk, 1852), hydrotheca from sample MNHN-IK-2015-514. — B–K. Lytocarpia fragilis sp. nov., from sample MNHN-IK-2015-523. A–B. Portions of stems in frontal (B) and dorsal (C) aspects. D–G. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view. H–I. Distal part of mesial nematotheca seen frontally (H) and apically (I). J–K. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3711020" httpUri="https://zenodo.org/record/3711020/files/figure.png" pageId="23" pageNumber="24">Fig. 11J and 11K</figureCitation>
|
||
). The gonothecae, lenticular in shape, are inserted at the bases of costae, close to the large internodal nematotheca; perisarc flimsy.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="DF63C1D61A4CFFB597AA70485F4483B9" ID-DOI="http://doi.org/10.5281/zenodo.3711020" ID-Zenodo-Dep="3711020" httpUri="https://zenodo.org/record/3711020/files/figure.png" pageId="22" pageNumber="23" startId="22.[189,231,1857,1883]" targetBox="[192,1398,743,1815]" targetPageId="22">
|
||
<paragraph id="8BA3915E1A4CFFB597AA70485F4483B9" blockId="22.[189,1399,1857,2025]" pageId="22" pageNumber="23">
|
||
<emphasis id="B9684D4C1A4CFFB597AA70485B14830B" bold="true" box="[189,318,1857,1883]" pageId="22" pageNumber="23">Fig. 11. A</emphasis>
|
||
.
|
||
<taxonomicName id="4C1CEADD1A4CFFB59645704B5920830C" authority="(Busk, 1852)" baseAuthorityName="Busk" baseAuthorityYear="1852" box="[338,778,1857,1884]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="22" pageNumber="23" phylum="Cnidaria" rank="species" species="brevirostris">
|
||
<emphasis id="B9684D4C1A4CFFB59645704B5875830B" box="[338,607,1857,1883]" italics="true" pageId="22" pageNumber="23">Lytocarpia brevirostris</emphasis>
|
||
(Busk, 1852)
|
||
</taxonomicName>
|
||
, hydrotheca from sample MNHN-IK-2015-514.
|
||
<emphasis id="B9684D4C1A4CFFB5924E70485ADF832F" bold="true" pageId="22" pageNumber="23">— B–K</emphasis>
|
||
.
|
||
<taxonomicName id="4C1CEADD1A4CFFB59612706C5BF7832E" authority="Galea, 2020" authorityName="Galea" authorityYear="2020" box="[261,477,1892,1918]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="22" pageNumber="23" phylum="Cnidaria" rank="species" species="fragilis" status="sp. nov.">
|
||
<emphasis id="B9684D4C1A4CFFB59612706C5BF7832E" box="[261,477,1892,1918]" italics="true" pageId="22" pageNumber="23">Lytocarpia fragilis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25BF0371A4CFFB596F1706C5868832F" box="[486,578,1893,1919]" pageId="22" pageNumber="23" rank="species">sp. nov.</taxonomicNameLabel>
|
||
, from sample MNHN-IK-2015-523.
|
||
<emphasis id="B9684D4C1A4CFFB594E5706D5E03832E" bold="true" box="[1010,1065,1892,1918]" pageId="22" pageNumber="23">A–B</emphasis>
|
||
. Portions of stems in frontal (B) and dorsal (C) aspects.
|
||
<emphasis id="B9684D4C1A4CFFB596EB708E581C83F1" bold="true" box="[508,566,1927,1953]" pageId="22" pageNumber="23">D–G</emphasis>
|
||
. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view.
|
||
<emphasis id="B9684D4C1A4CFFB595AF70A258C28395" bold="true" box="[696,744,1963,1989]" pageId="22" pageNumber="23">H–I</emphasis>
|
||
. Distal part of mesial nematotheca seen frontally (H) and apically (I).
|
||
<emphasis id="B9684D4C1A4CFFB5965E70C75B5683B8" bold="true" box="[329,380,1998,2024]" pageId="22" pageNumber="23">J–K</emphasis>
|
||
. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C306C2D51A4DFFB497AA726E59A083BB" pageId="23" pageNumber="24" type="discussion">
|
||
<paragraph id="8BA3915E1A4DFFB497AA726E5B0581D1" blockId="23.[189,303,1383,1409]" box="[189,303,1383,1409]" pageId="23" pageNumber="24">
|
||
<heading id="D0EB26321A4DFFB497AA726E5B0581D1" bold="true" box="[189,303,1383,1409]" fontSize="11" level="3" pageId="23" pageNumber="24" reason="3">
|
||
<emphasis id="B9684D4C1A4DFFB497AA726E5B0581D1" bold="true" box="[189,303,1383,1409]" pageId="23" pageNumber="24">Remarks</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BA3915E1A4DFFB497AA729D589382EE" blockId="23.[189,1399,1428,1726]" pageId="23" pageNumber="24">
|
||
The hydrothecae of
|
||
<taxonomicName id="4C1CEADD1A4DFFB496BD729C583581FE" authority="Galea, 2020" authorityName="Galea" authorityYear="2020" box="[426,543,1428,1454]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="fragilis" status="sp. nov.">
|
||
<emphasis id="B9684D4C1A4DFFB496BD729C583581FE" box="[426,543,1428,1454]" italics="true" pageId="23" pageNumber="24">L. fragilis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25BF0371A4DFFB49530729D58A881FE" box="[551,642,1428,1454]" pageId="23" pageNumber="24" rank="species">sp. nov.</taxonomicNameLabel>
|
||
are mainly characterized by the notable bulging (both abaxially and laterally) of their lower halves, recalling the thecae of
|
||
<taxonomicName id="4C1CEADD1A4DFFB4947072BE5E868181" authority="(Busk, 1852)" baseAuthorityName="Busk" baseAuthorityYear="1852" box="[871,1196,1462,1489]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="brevirostris">
|
||
<emphasis id="B9684D4C1A4DFFB4947072BE5E278180" box="[871,1037,1462,1488]" italics="true" pageId="23" pageNumber="24">L. brevirostris</emphasis>
|
||
(Busk, 1852)
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1CEADD1A4DFFB493F372BE5BAD81A2" authority="(Versluys, 1899)" baseAuthorityName="Versluys" baseAuthorityYear="1899" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="tridentata">
|
||
<emphasis id="B9684D4C1A4DFFB493F372BE5F5D8180" box="[1252,1399,1462,1488]" italics="true" pageId="23" pageNumber="24">L. tridentata</emphasis>
|
||
(Versluys, 1899)
|
||
</taxonomicName>
|
||
. The former is equally present in the material dealt with herein (
|
||
<figureCitation id="13278DDB1A4DFFB493BC72D15F3381A2" box="[1195,1305,1496,1522]" captionStart="Fig" captionStartId="22.[189,231,1857,1883]" captionTargetBox="[192,1398,743,1815]" captionTargetId="figure@22.[189,1398,743,1815]" captionTargetPageId="22" captionText="Fig. 11. A. Lytocarpia brevirostris (Busk, 1852), hydrotheca from sample MNHN-IK-2015-514. — B–K. Lytocarpia fragilis sp. nov., from sample MNHN-IK-2015-523. A–B. Portions of stems in frontal (B) and dorsal (C) aspects. D–G. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view. H–I. Distal part of mesial nematotheca seen frontally (H) and apically (I). J–K. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3711020" httpUri="https://zenodo.org/record/3711020/files/figure.png" pageId="23" pageNumber="24">Fig. 11A</figureCitation>
|
||
) and is readily distinguished from the new species through its hydrothecae occupying the entire length of the cormidium, the lack of lateral swelling in their lower half, a mesial nematotheca provided with a single, gutter-shaped aperture as well as a hydrothecal rim bearing three pairs of large, triangular cusps, in addition to the median, abaxial one. Hydrothecae of
|
||
<taxonomicName id="4C1CEADD1A4DFFB4943C716959958229" baseAuthorityName="Versluys" baseAuthorityYear="1899" box="[811,959,1631,1657]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="tridentata">
|
||
<emphasis id="B9684D4C1A4DFFB4943C716959958229" box="[811,959,1631,1657]" italics="true" pageId="23" pageNumber="24">L. tridentata</emphasis>
|
||
</taxonomicName>
|
||
share the same distinctive characters as those listed in
|
||
<taxonomicName id="4C1CEADD1A4DFFB49691718B580182CB" baseAuthorityName="Busk" baseAuthorityYear="1852" box="[390,555,1665,1691]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="brevirostris">
|
||
<emphasis id="B9684D4C1A4DFFB49691718B580182CB" box="[390,555,1665,1691]" italics="true" pageId="23" pageNumber="24">L. brevirostris</emphasis>
|
||
</taxonomicName>
|
||
, but their rim is set with a pair of low, broad, triangular, lateral cusps, in addition to the median one (
|
||
<bibRefCitation id="EF8DECAF1A4DFFB4951271AA588682EE" accessDate="2020-03-06" author="Migotto A. E." box="[517,684,1699,1726]" firstAuthor="Migotto" journalOrPublisher="Zoologische Verhandelingen, Leiden" pageId="23" pageNumber="24" pagination="1 - 125" part="306" publicationUrl="https://www.repository.naturalis.nl/document/148871" refId="ref22862" refString="Migotto A. E. 1996. Benthic shallow-water hydroids (Cnidaria, Hydrozoa) of the coast of Sao Sebastiao, Brazil, including a checklist of Brazilian hydroids. Zoologische Verhandelingen, Leiden 306: 1 - 125. Available from https: // www. repository. naturalis. nl / document / 148871 [accessed 6 Mar. 2020]." title="Benthic shallow-water hydroids (Cnidaria, Hydrozoa) of the coast of Sao Sebastiao, Brazil, including a checklist of Brazilian hydroids" type="journal article" year="1996">Migotto 1996</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BA3915E1A4DFFB497AA71ED59A083BB" blockId="23.[189,1399,1763,2027]" pageId="23" pageNumber="24">
|
||
As noted above in the description, the mesial nematotheca of
|
||
<taxonomicName id="4C1CEADD1A4DFFB494A171ED5E0482AD" authority="Galea, 2020" authorityName="Galea" authorityYear="2020" box="[950,1070,1763,1789]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="fragilis" status="sp. nov.">
|
||
<emphasis id="B9684D4C1A4DFFB494A171ED5E0482AD" box="[950,1070,1763,1789]" italics="true" pageId="23" pageNumber="24">L. fragilis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25BF0371A4DFFB4932E71ED5EBD82AE" box="[1081,1175,1764,1790]" pageId="23" pageNumber="24" rank="species">sp. nov.</taxonomicNameLabel>
|
||
has a wide apical aperture, partly camouflaged by a backwardly-rolled abaxial wall (
|
||
<figureCitation id="13278DDB1A4DFFB494CA700C5E17834F" box="[989,1085,1797,1823]" captionStart="Fig" captionStartId="22.[189,231,1857,1883]" captionTargetBox="[192,1398,743,1815]" captionTargetId="figure@22.[189,1398,743,1815]" captionTargetPageId="22" captionText="Fig. 11. A. Lytocarpia brevirostris (Busk, 1852), hydrotheca from sample MNHN-IK-2015-514. — B–K. Lytocarpia fragilis sp. nov., from sample MNHN-IK-2015-523. A–B. Portions of stems in frontal (B) and dorsal (C) aspects. D–G. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view. H–I. Distal part of mesial nematotheca seen frontally (H) and apically (I). J–K. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3711020" httpUri="https://zenodo.org/record/3711020/files/figure.png" pageId="23" pageNumber="24">Fig. 11I</figureCitation>
|
||
) that creates laterally two circular passages, giving the impression – upon a frontal view of the hydrotheca – that the nematotheca is bifid (
|
||
<figureCitation id="13278DDB1A4DFFB4963C70405BB48333" box="[299,414,1865,1891]" captionStart="Fig" captionStartId="22.[189,231,1857,1883]" captionTargetBox="[192,1398,743,1815]" captionTargetId="figure@22.[189,1398,743,1815]" captionTargetPageId="22" captionText="Fig. 11. A. Lytocarpia brevirostris (Busk, 1852), hydrotheca from sample MNHN-IK-2015-514. — B–K. Lytocarpia fragilis sp. nov., from sample MNHN-IK-2015-523. A–B. Portions of stems in frontal (B) and dorsal (C) aspects. D–G. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view. H–I. Distal part of mesial nematotheca seen frontally (H) and apically (I). J–K. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3711020" httpUri="https://zenodo.org/record/3711020/files/figure.png" pageId="23" pageNumber="24">Fig. 11H</figureCitation>
|
||
). Nematothecae having a similar aperture have been described in
|
||
<taxonomicName id="4C1CEADD1A4DFFB493F270435BC083D5" authority="Ryland & Gibbons, 1991" authorityName="Ryland & Gibbons" authorityYear="1991" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="bathyalis">
|
||
<emphasis id="B9684D4C1A4DFFB493F270435F5D8333" box="[1253,1399,1865,1891]" italics="true" pageId="23" pageNumber="24">L. bathyalis</emphasis>
|
||
<bibRefCitation id="EF8DECAF1A4DFFB497AA70625BC083D5" author="Ryland J. S. & Gibbons M. J." box="[189,490,1899,1925]" firstAuthor="Ryland" journalOrPublisher="Memoirs of the Queensland Museum" pageId="23" pageNumber="24" pagination="525 - 560" part="30" refId="ref23564" refString="Ryland J. S. & Gibbons M. J. 1991. Intertidal and shallow water hydroids from Fiji. II. Plumulariidae and Aglaopheniidae. Memoirs of the Queensland Museum 30 (3): 525 - 560." title="Intertidal and shallow water hydroids from Fiji. II. Plumulariidae and Aglaopheniidae" type="journal article" year="1991">Ryland & Gibbons, 1991</bibRefCitation>
|
||
</taxonomicName>
|
||
(original account,
|
||
<bibRefCitation id="EF8DECAF1A4DFFB495D9706259DD83D5" author="Ryland J. S. & Gibbons M. J." box="[718,1015,1899,1925]" firstAuthor="Ryland" journalOrPublisher="Memoirs of the Queensland Museum" pageId="23" pageNumber="24" pagination="525 - 560" part="30" refId="ref23564" refString="Ryland J. S. & Gibbons M. J. 1991. Intertidal and shallow water hydroids from Fiji. II. Plumulariidae and Aglaopheniidae. Memoirs of the Queensland Museum 30 (3): 525 - 560." title="Intertidal and shallow water hydroids from Fiji. II. Plumulariidae and Aglaopheniidae" type="journal article" year="1991">Ryland & Gibbons 1991</bibRefCitation>
|
||
: fig. 14d–e) but, in this species, the nematotheca is adnate to the entire length of the abaxial wall of the hydrotheca, leaving only a short portion free that surpasses the rim. Conversely, a true bifid mesial nematotheca is to be found in
|
||
<taxonomicName id="4C1CEADD1A4DFFB497AA70DB5BD183BB" authority="(Vervoort, 1941)" baseAuthorityName="Vervoort" baseAuthorityYear="1941" box="[189,507,2001,2027]" class="Hydrozoa" family="Aglaopheniidae" genus="Lytocarpia" kingdom="Animalia" order="Leptothecata" pageId="23" pageNumber="24" phylum="Cnidaria" rank="species" species="furcata">
|
||
<emphasis id="B9684D4C1A4DFFB497AA70DB5B1A83BB" box="[189,304,2001,2027]" italics="true" pageId="23" pageNumber="24">L. furcata</emphasis>
|
||
(
|
||
<bibRefCitation id="EF8DECAF1A4DFFB4962870D85BD883BB" author="Vervoort W." box="[319,498,2001,2027]" firstAuthor="Vervoort" journalOrPublisher="Temminckia" pageId="23" pageNumber="24" pagination="186 - 240" part="6" refId="ref23959" refString="Vervoort W. 1941. The Hydroida of the Snellius Expedition (Milleporidae and Stylasteridae excluded). Temminckia 6: 186 - 240." title="The Hydroida of the Snellius Expedition (Milleporidae and Stylasteridae excluded)" type="journal article" year="1941">Vervoort, 1941</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
(original account
|
||
<bibRefCitation id="EF8DECAF1A4DFFB495C770D8595783BB" author="Vervoort W." box="[720,893,2001,2027]" firstAuthor="Vervoort" journalOrPublisher="Temminckia" pageId="23" pageNumber="24" pagination="186 - 240" part="6" refId="ref23959" refString="Vervoort W. 1941. The Hydroida of the Snellius Expedition (Milleporidae and Stylasteridae excluded). Temminckia 6: 186 - 240." title="The Hydroida of the Snellius Expedition (Milleporidae and Stylasteridae excluded)" type="journal article" year="1941">Vervoort 1941</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C306C2D51A42FFBB97AA760259DF8504" box="[189,1013,267,340]" pageId="24" pageNumber="25" type="distribution">
|
||
<paragraph id="8BA3915E1A42FFBB97AA76025B7C8575" blockId="24.[189,1013,267,340]" box="[189,342,267,293]" pageId="24" pageNumber="25">
|
||
<heading id="D0EB26321A42FFBB97AA76025B7C8575" bold="true" box="[189,342,267,293]" fontSize="11" level="3" pageId="24" pageNumber="25" reason="3">
|
||
<emphasis id="B9684D4C1A42FFBB97AA76025B7C8575" bold="true" box="[189,342,267,293]" pageId="24" pageNumber="25">Distribution</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BA3915E1A42FFBB97AA763359DF8504" blockId="24.[189,1013,267,340]" box="[189,1013,313,340]" pageId="24" pageNumber="25">
|
||
Known only from its
|
||
<typeStatus id="54A72FFC1A42FFBB96AD76335BC78504" box="[442,493,314,340]" pageId="24" pageNumber="25">type</typeStatus>
|
||
locality, off
|
||
<collectingCountry id="F30BD1CE1A42FFBB95967633591D8503" box="[641,823,313,340]" name="New Caledonia" pageId="24" pageNumber="25">New Caledonia</collectingCountry>
|
||
(present study).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |