160 lines
19 KiB
XML
160 lines
19 KiB
XML
<document id="48C099A0B3EE7DEC8DB4FD55E0E87AEE" ID-CLB-Dataset="34733" ID-DOI="http://dx.doi.org/10.3897/zookeys.342.5948" ID-GBIF-Dataset="f734a1fa-76c7-4ab5-8193-2a56b69e00eb" ID-PMC="PMC3817425" ID-Pensoft-Pub="1313-2970-342-1" ID-PubMed="24194651" ModsDocAuthor="" ModsDocDate="2013" ModsDocID="1313-2970-342-1" ModsDocOrigin="ZooKeys 342" ModsDocTitle="On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)" checkinTime="1451246808195" checkinUser="pensoft" docAuthor="Luo, Yongting & Segers, Hendrik" docDate="2013" docId="418802056EB057D04C11C9DE3DB601B5" docLanguage="en" docName="ZooKeys 342: 1-12" docOrigin="ZooKeys 342" docSource="http://dx.doi.org/10.3897/zookeys.342.5948" docTitle="Pulchritia dorsicornuta Van Oye 1926, comb. n." docType="treatment" docVersion="6" lastPageNumber="7" masterDocId="FFD5810A474FBF4DFFFBFFB5E36FFF8B" masterDocTitle="On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)" masterLastPageNumber="12" masterPageNumber="1" pageNumber="5" updateTime="1732783234635" updateUser="ExternalLinkService">
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<mods:title id="013CAC85515C5B58C31638DC8F128010">On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)</mods:title>
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<mods:namePart id="D85E618DAEFC08F692AB762FAEB692A6">Luo, Yongting</mods:namePart>
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<mods:namePart id="0DD0A66E04DC95C85142475DEEA68CF8">Segers, Hendrik</mods:namePart>
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<mods:typeOfResource id="5B837A27F79B2B03732252F48F0585DA">text</mods:typeOfResource>
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<mods:title id="9BE3115DFF1CEC7EB033AF181C1CB773">ZooKeys</mods:title>
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<mods:date id="906F53A6C3254B4DCE3A464336191083">2013</mods:date>
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<mods:number id="82FE678E320FBE4D1AA2BA9E82509DA4">342</mods:number>
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<mods:classification id="01AAF2ABEA3D866C2080F013EB54F38A">journal article</mods:classification>
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<mods:identifier id="953328F547A5A0498D8CE43B177F9577" type="DOI">http://dx.doi.org/10.3897/zookeys.342.5948</mods:identifier>
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<mods:identifier id="C31074C7D0E72030E4CCFDB98D102059" type="Pensoft-Pub">1313-2970-342-1</mods:identifier>
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<treatment id="418802056EB057D04C11C9DE3DB601B5" ID-GBIF-Taxon="152048743" LSID="urn:lsid:plazi:treatment:418802056EB057D04C11C9DE3DB601B5" httpUri="http://treatment.plazi.org/id/418802056EB057D04C11C9DE3DB601B5" lastPageId="6" lastPageNumber="7" pageId="4" pageNumber="5" scope_family="Trichotriidae" scope_phylum="Rotifera">
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<subSubSection id="F7A0B7CD28ACEB8B33D887328252BC2F" pageId="4" pageNumber="5" type="nomenclature">
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<paragraph id="DB74DD08374C0909C3ABAB8C9E5EFB0B" pageId="4" pageNumber="5">
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<pageBreakToken id="D82F3BC11F3454575A7519B42917C704" pageId="4" pageNumber="5" start="start">Redescription</pageBreakToken>
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of
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<taxonomicName id="43AF76F824F6660B12C1DAE8018CDC0B" LSID="http://species-id.net/wiki/Pulchritia_dorsicornuta" authority="Van Oye, 1926" authorityName="Van Oye" authorityYear="1926" genus="Pulchritia" lsidName="Pulchritia dorsicornuta" pageId="4" pageNumber="5" rank="species" species="dorsicornuta">Pulchritia dorsicornuta (Van Oye, 1926)</taxonomicName>
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<taxonomicNameLabel id="8CCFDE391F7C0D673E8474E137C15188" pageId="4" pageNumber="5">comb. n.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="0EFF937742DD7DF1C4FB53BDFC965D3D" pageId="4" pageNumber="5" type="material examined">
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<paragraph id="AFC734F281C2E463EA2A7FC3EECA774E" pageId="4" pageNumber="5">Material examined.</paragraph>
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<paragraph id="BC7C33B071600BB4E8AB8EDB3AC32EB9" pageId="4" pageNumber="5">
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Type material: Neotype (labelled: "
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<taxonomicName id="7A4BC245434046FD2BE6CDD67AE22A2C" genus="Pulchritia" lsidName="Pulchritia dorsicornuta" pageId="4" pageNumber="5" rank="species" species="dorsicornuta">Pulchritia dorsicornuta</taxonomicName>
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(Van Oye, 1926) Neotype. Lohulu River near Bomane, DR Congo, 24 May 2010 (KM-048)") in Royal Belgian Institute of Natural Sciences, Brussels Belgium (IG32450, RIR 212).
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</paragraph>
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<paragraph id="922FD0D7D669423104C254A9A3080B9C" pageId="4" pageNumber="5">
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Other material: Abundant specimens of the species were found in two localities: Lulu River near Basoko (sample KM-028:
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<geoCoordinate id="844729E3B36431D53C92766FA249E75F" direction="north" orientation="latitude" precision="5" value="1.2958">1.2958°N</geoCoordinate>
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,
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<geoCoordinate id="AEB6D743611EDC33D0D8BE0BB8C299CD" direction="east" orientation="longitude" precision="5" value="23.6497">23.6497°E</geoCoordinate>
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(DD, GPS waypoint Mac 079), altitude. ca. 350 m asl., water temp. 25.8° C, conductivity 16.5
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<normalizedToken id="3873783C0497F5E728376294A169810D" originalValue="µS">µS</normalizedToken>
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/cm), and Lohulu River near Bomane (samples KM-048, KM-049:
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<geoCoordinate id="833CD3B4BE952FD0537BDC1A562A1C9E" direction="north" orientation="latitude" precision="5" value="1.2486">1.2486°N</geoCoordinate>
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,
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<geoCoordinate id="F655F36ABD10AFDFB9F5051D7530AA8E" direction="east" orientation="longitude" precision="5" value="23.728">23.7280°E</geoCoordinate>
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(DD, GPS waypoint Mac 089), altitude. ca. 410 m asl., water temp. 24.3° C, conductivity 30.4
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<normalizedToken id="058C60812BD33A60297C543588531143" originalValue="µS">µS</normalizedToken>
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/cm, oxygen 0.45 mg/l), both in Orientale province, DR Congo. All samples are from running water. One permanent trophi preparation, and nine permanent slides containing one, three slides containing two, and three slides containing three specimens. Deposited in RBINS and in the CSB-UK.
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</paragraph>
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</subSubSection>
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<subSubSection id="485A879AEFB3249848CFB1D557D3C94D" pageId="4" pageNumber="5" type="diagnosis">
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<paragraph id="74E2DBCB7EC2B923D2CE7A49FDE16B86" pageId="4" pageNumber="5">Diagnosis.</paragraph>
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<paragraph id="41B35AD5A6995A6379F1A1D6192A2053" pageId="4" pageNumber="5">
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<taxonomicName id="7F6175ECAB5132AC04163D3B00124FEF" genus="Pulchritia" lsidName="Pulchritia dorsicornuta" pageId="4" pageNumber="5" rank="species" species="dorsicornuta">Pulchritia dorsicornuta</taxonomicName>
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comb. n. is unmistakable by the large, S-shaped antero-lateral projections of its ventral lorica. These are completely absent in its closest relative
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<taxonomicName id="89C852CEB570905507290366B7E0436D" genus="Pulchritia" lsidName="Pulchritia kostei" pageId="4" pageNumber="5" rank="species" species="kostei">Pulchritia kostei</taxonomicName>
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comb. n.
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</paragraph>
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</subSubSection>
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<subSubSection id="75A872591EB66B0BF37AC04FEFE8B0FB" pageId="4" pageNumber="5" type="description">
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<paragraph id="14EB6EFDCCDC2A3D973E8638552317B5" pageId="4" pageNumber="5">Description.</paragraph>
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<paragraph id="E6AD6FF9FF4E199AD04EDA2E4345F80D" pageId="4" pageNumber="5">
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Female (Figs 1, 2
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<normalizedToken id="8D78CDA1914CE16979845F7436653562" originalValue="a–b">a-b</normalizedToken>
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; male unknown): Body: Head largely retracted in trunk lorica, with two lateral stiffened elements protruding from the head aperture. A pigmented spot (eye?) present. Trunk loricate, elliptic in outline, longer than wide, dorso-ventrally compressed. Ventral and dorsal plates fused laterally and caudally, leaving a broad head aperture and a smaller foot aperture. Dorsal plate medially with two semi-longitudinal ridges forming a Y-shaped double dorsal keel, fused to a single dorsal keel terminally. Posterior of dorsal lorica with a weakly protruding rounded margin bearing two pairs of short ridges over the foot aperture. Openings of the lateral antennae in posterior third of body, about halfway between dorsal keel and lateral margin of lorica. Dorsal head aperture margin concave. Ventral plate flat, with two protruding, weakly S-shaped and diverging spines antero-laterally, these separated by a shallow U-shaped sinus. Posterior of ventral plate with a well-defined foot aperture, with rounded anterior and diverging lateral margins. Anal segment indistinct, poorly developed (also in poorly contracted specimens). Foot subterminally, consisting of a short, bilaterally constricted first and an elongate, parallel-sided second foot pseudosegment. Two long, equal toes, these mostly parallel-sided, terminating in a sharp tip.
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</paragraph>
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<paragraph id="47E92E6F34D038A2610F58F0183635C6" pageId="4" pageNumber="5">
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Trophi (Figs 2
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<normalizedToken id="03E0437921A3A789B15FB7BC9C114659" originalValue="c–e">c-e</normalizedToken>
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) malleate, almost symmetrical. Fulcrum short, with a small basal plate; rami relatively flat, triangular, with rounded postero-lateral corners and short, curved alulae, inner margins with asymmetrical, protruding teeth-shaped structures. Left uncus with two large frontal and three minor dorsal webbed teeth, right with a single large frontal and four minor teeth, all minor teeth gradually reduced in size from frontal to dorsal. Manubria symmetrical, with elongate and weakly procurved shaft. Head broad, with clear ventral, median and dorsal chambers, anterior chamber with an additional rounded triangular apophysis, dorsal chamber with a recurved hook.
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</paragraph>
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</subSubSection>
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<subSubSection id="79E8A9510E1D524B1D9D911EAF143085" pageId="5" pageNumber="6" type="measurements">
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<paragraph id="5357E51C527889BDE61B0FC0C7965FF3" pageId="5" pageNumber="6">
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<pageBreakToken id="B11C54657B34C91F233DDC215EF18078" pageId="5" pageNumber="6" start="start">Measurements</pageBreakToken>
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</paragraph>
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<paragraph id="FBD8C6456B26BF76BA0BDFFE3F279D84" pageId="5" pageNumber="6">
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(in
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<normalizedToken id="650E8EFCFF29466454E46860BB72995C" originalValue="µm">µm</normalizedToken>
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. N=12; range, mean).Total length (incl. foot): 180-205, 192; lorica width 92-122, 106; antero-lateral spine length 20-32, 27; head aperture width 37-58, 47; foot aperture width 29-40, 33; length 23-34, 28; first foot pseudosegment length 9-14, 11; second foot pseudosegment length 46-54, 48; toe length 26-32, 29.
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</paragraph>
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</subSubSection>
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<subSubSection id="5721F78B371C5AA1ABD0F90949D3866E" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6" type="distribution">
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<paragraph id="4F6B23CD2437EA5BD740B0C1435E7AED" pageId="5" pageNumber="6">Distribution.</paragraph>
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<paragraph id="1BAE3348414459608FD3D79823B51C18" pageId="6" pageNumber="7">
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<taxonomicName id="C7B562924002299A0056807A3168EF0A" genus="Pulchritia" lsidName="Pulchritia dorsicornuta" pageId="6" pageNumber="7" rank="species" species="dorsicornuta">
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<pageBreakToken id="DC278129736320698DA819966C43FE0B" pageId="6" pageNumber="7" start="start">Pulchritia</pageBreakToken>
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dorsicornuta
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</taxonomicName>
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comb. n. is only known from the two localities cited above, and from Ruki River near Eala (
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<bibRefCitation id="594623C817BDCFFCAEB59F8E0C596558" author="Van Oye, P" journalOrPublisher="Bulletin de la Societe zoologique de France" pageId="9" pageNumber="10" pagination="49 - 54" title="Rotateurs nouveaux du Congo Belge." volume="51" year="1926">Van Oye 1926</bibRefCitation>
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), near Mbandaka, Equator province, DR Congo. Its close relative
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<taxonomicName id="195E679E49EB6AC0EE9E27EB1A82D879" genus="Pulchritia" lsidName="Pulchritia kostei" pageId="6" pageNumber="7" rank="species" species="kostei">Pulchritia kostei</taxonomicName>
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com b. n. is known only from a coastal lagoon, State of Rio de Janeiro, Brazil. We hypothesize that the two represent a vicariant species pair. This is remarkable as there are few examples of such vicariant sister-taxa, possibly originating from allopatric speciation, in rotifers, and patters are blurred by their purportedly superb dispersal potential (
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<bibRefCitation id="EFEA2351526C8DE00E183FF067506D2F" author="Segers, H" journalOrPublisher="Hydrobiologia" pageId="8" pageNumber="9" pagination="49 - 59" title="Global diversity of rotifers (Rotifera) in freshwater." url="10.1007/s10750-007-9003-7" volume="595" year="2008">Segers 2008</bibRefCitation>
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,
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<bibRefCitation id="1A68A2D4296DEFDC78FDDCBB657838F0" author="Segers, H" editor="Foissner, W" journalOrPublisher="Biodiversity and Conservation" pageId="8" pageNumber="9" pagination="303 - 316" title="Diversity and endemism in Rotifera: a review, and Keratella Bory de St Vincent." volume="17" volumeTitle="Protist diversity and geographic distribution." year="2008">Segers and De Smet 2008</bibRefCitation>
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). Some have been identified before in the genus
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<taxonomicName id="D7EC4B1A58C920328514D9BCACA88DFE" class="Eurotatoria" family="Lecanidae" genus="Lecane" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lecane" order="Ploima" pageId="6" pageNumber="7" phylum="Rotifera" rank="genus">Lecane</taxonomicName>
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(see
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<bibRefCitation id="3C5CC28FA103C51E2F0D427F29DBE50E" author="Segers, H" journalOrPublisher="Hydrobiologia" pageId="8" pageNumber="9" pagination="169 - 197" title="The biogeography of littoral Lecane Rotifera." url="10.1007/BF00007845" volume="323" year="1996">Segers 1996</bibRefCitation>
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), but the most notorious example of such a vicariant species-pair is
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<taxonomicName id="94667B74062B04694AA9E4CE421BC082" class="Eurotatoria" family="Brachionidae" genus="Kellicottia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Kellicottia longispina" order="Ploima" pageId="6" pageNumber="7" phylum="Rotifera" rank="species" species="longispina">Kellicottia longispina</taxonomicName>
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(Kellicott) and
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<taxonomicName id="EF27BD0229BE04505B23E8206CB7163C" class="Eurotatoria" family="Brachionidae" genus="Kellicottia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Kellicottia bostoniensis" order="Ploima" pageId="6" pageNumber="7" phylum="Rotifera" rank="species" species="bostoniensis">Kellicottia bostoniensis</taxonomicName>
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(Rousselet), in which the former is hypothesized to be of Palaearctic, the latter of Nearctic origin (
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<bibRefCitation id="A288886C1676B17E88C4676109F10D01" author="Pejler, B" journalOrPublisher="Archiv fuer Hdyrobiologie" pageId="8" pageNumber="9" pagination="165 - 213" title="On the global distribution of the family Brachionidae (Rotatoria)." volume="38" year="1977">Pejler 1977</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="DF4FF6ACE30E371868AB4A0E7B191A6D" pageId="6" pageNumber="7" type="comments">
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<paragraph id="A9E2EC29D0FFD5E48BCFD9A3C127CE84" pageId="6" pageNumber="7">Comments.</paragraph>
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<paragraph id="CCC03F30CC2907790A2FD05E26BAD9D0" pageId="6" pageNumber="7">
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The main feature distinguishing
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<taxonomicName id="99AEAE41707A1A8B7F3ADE55BA9B1B13" genus="Pulchritia" lsidName="Pulchritia dorsicornuta" pageId="6" pageNumber="7" rank="species" species="dorsicornuta">Pulchritia dorsicornuta</taxonomicName>
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comb. n. and
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<taxonomicName id="8E95432FFA7BB5482C65E1E19FA7C192" genus="Pulchritia" lsidName="Pulchritia kostei" pageId="6" pageNumber="7" rank="species" species="kostei">Pulchritia kostei</taxonomicName>
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comb. n. is the presence of well-developed antero-lateral spines in the former. As we observed only negligible variability of the antero-lateral spines of
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<taxonomicName id="331B0017C7E3EACD3701505F7735D0ED" genus="Pulchritia" lsidName="Pulchritia dorsicornuta" pageId="6" pageNumber="7" rank="species" species="dorsicornuta">Pulchritia dorsicornuta</taxonomicName>
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comb. n., and as there are no indications at all of such spines in
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<taxonomicName id="C3E5F3244D0BD0A836368C3F6AED9392" genus="Pulchritia" lsidName="Pulchritia kostei" pageId="6" pageNumber="7" rank="species" species="kostei">Pulchritia kostei</taxonomicName>
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comb. n., we can neither exclude nor confirm the possibility that this feature results from phenotypic plasticity and as such would not be taxonomically relevant. Examples of such environmentally induced spine development are common in rotifers, including
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<taxonomicName id="80970E33A467C173863C256F9B11C8C1" class="Eurotatoria" family="Trichotriidae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ploima" pageId="6" pageNumber="7" phylum="Rotifera" rank="family">Trichotriidae</taxonomicName>
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(
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<bibRefCitation id="B1865F3B1CE6B98415C74113F6429B1F" author="Gilbert, JJ" journalOrPublisher="Freshwater Biology" pageId="8" pageNumber="9" pagination="926 - 938" title="Induction of different defences by two enemies in the rotifer Keratella tropica: response priority and sensitivity to enemy density." url="10.1111/j.1365-2427.2010.02538.x" volume="56" year="2011 a">Gilbert 2011a</bibRefCitation>
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,
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<bibRefCitation id="BA18869C6C4E7AABA2A4A592BFABACEA" author="Gilbert, JJ" journalOrPublisher="Hydrobiologia" pageId="8" pageNumber="9" pagination="179 - 190" title="Temperature, kairomones, and phenotypic plasticity in the rotifer Keratella tropica (Apstein, 1907)." url="10.1007/s10750-011-0847-5" volume="678" year="2011 b">2011b</bibRefCitation>
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,
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<bibRefCitation id="CCE0882E6A8A640A9A8927FF48AFC6B0" author="Koste, W" journalOrPublisher="Borntraeger, Berlin" pageId="8" pageNumber="9" title="Rotatoria. Die Raedertiere Mitteleuropas." year="1978">Koste 1978</bibRefCitation>
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,
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<bibRefCitation id="166654357AE92AFF151F77CBA303F5A9" author="Luo, Y" journalOrPublisher="Zootaxa" pageId="8" pageNumber="9" pagination="37 - 44" title="A peculiar case of intraspecific variability in the Chinese Notholca dongtingensis (Rotifera: Monogononta: Brachionidae)." volume="3532" year="2012">Luo et al. 2012</bibRefCitation>
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,
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<bibRefCitation id="73AEA51D0852E2229C3B85CF503B269C" author="Wallace, RL" journalOrPublisher="Kenobi Productions, Gent, Belgium and Backhuys Publishers, Leiden, The Netherlands" pageId="9" pageNumber="10" title="Rotifera: Volume 1: Biology, Ecology and Systematics (2 nd Edition). Guides to the Identification of the Microinvertebrates of the Continental Waters of the World 23." year="2006">Wallace et al. 2006</bibRefCitation>
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). We prefer to remain cautious and treat the two as separate taxa, pending proof to the contrary.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |