218 lines
31 KiB
XML
218 lines
31 KiB
XML
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<mods:title id="EDF28F208F94CB2D9C91A2E846A61BDA">Biodiversity of marine planarians revisited (Platyhelminthes, Tricladida, Maricola)</mods:title>
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<mods:namePart id="53E9F9C2386D6F910E90AF217AD69B3C">Sluys, Ronald</mods:namePart>
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<mods:namePart id="9035E0D408EAC1099D4564996C5D7C16">Kawakatsu, Masaharu</mods:namePart>
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<mods:title id="0F5679E8625C5EF4D2A48EC014F0B903">Journal of Natural History</mods:title>
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<mods:date id="EF06C28FBAE43F1917EF4C9E9273F251">2005</mods:date>
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<subSubSection id="C3206549E50E927C4289A186D95D3283" box="[442,862,137,161]" pageId="21" pageNumber="464" type="nomenclature">
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<paragraph id="8B8536C2E50E927C4289A186D95D3283" blockId="21.[442,862,137,193]" box="[442,862,137,161]" pageId="21" pageNumber="464">
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<heading id="D0CD81AEE50E927C4289A186D95D3283" box="[442,862,137,161]" centered="true" fontSize="10" level="2" pageId="21" pageNumber="464" reason="2">
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<taxonomicName id="4C3A4D41E50E927C4289A186D95D3283" ID-CoL="7F3WR" authority="? Sluys, 1989" authorityName="? Sluys" authorityYear="1989" box="[442,862,137,161]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
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<emphasis id="B94EEAD0E50E927C4289A186D8C13283" bold="true" box="[442,706,137,161]" italics="true" pageId="21" pageNumber="464">Uteriporus pacificus</emphasis>
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?
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<bibRefCitation id="EFAB4B33E50E927C41E6A186D95D3283" author="Sluys R" box="[725,862,137,161]" pageId="21" pageNumber="464" refId="ref9110" refString="Sluys R. 1989. A Monograph of the Marine Triclads. Rotterdam and Brookfield: A. A. Balkema. XII + 463 p." type="book" year="1989">Sluys, 1989</bibRefCitation>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3206549E50E927F411AA1A6DE8C3710" lastPageId="22" lastPageNumber="465" pageId="21" pageNumber="464" type="description">
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<paragraph id="8B8536C2E50E927C411AA1A6D8EA32E3" blockId="21.[442,862,137,193]" box="[553,745,169,193]" pageId="21" pageNumber="464">
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(
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<figureCitation id="13012A47E50E927C4102A1A6D8E332E3" box="[561,736,169,193]" captionStart="Figures 28–30" captionStartId="20.[138,207,1113,1132]" captionTargetBox="[191,1130,133,1075]" captionTargetId="figure-150@20.[191,1132,133,1077]" captionTargetPageId="20" captionText="Figures 28–30. Procerodes plebeius and Uteriporus pacificus? (28) P. plebeius, V.Pl. 954.2, photomicrograph of penial papilla. (29) U. pacificus?, sagittal reconstruction of the copulatory apparatus (from Poljakova, 1991: figure 15B; labels adapted according to current terminology). (30) U. pacificus, specimen BC 7-5 (ZMA), photomicrograph of horizontal section of the receptacular duct; anterior to the left." figureDoi="http://doi.org/10.5281/zenodo.5221483" httpUri="https://zenodo.org/record/5221483/files/figure.png" pageId="21" pageNumber="464">Figures 29, 30</figureCitation>
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)
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</paragraph>
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<paragraph id="8B8536C2E50E927C434EA1F5DB7F3330" blockId="21.[125,380,250,274]" box="[125,380,250,274]" pageId="21" pageNumber="464">
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<emphasis id="B94EEAD0E50E927C434EA1F5DB7F3330" box="[125,380,250,274]" italics="true" pageId="21" pageNumber="464">Comparative discussion</emphasis>
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</paragraph>
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<paragraph id="8B8536C2E50E927C434EA024D95E30A5" blockId="21.[125,1173,299,1685]" pageId="21" pageNumber="464">
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<bibRefCitation id="EFAB4B33E50E927C434EA024DB453361" author="Poljakova AA" box="[125,326,299,323]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova (1991)</bibRefCitation>
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mentioned a presumably new species of
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<taxonomicName id="4C3A4D41E50E927C4019A024D9993361" authorityName="Sluys & Kawakatsu" authorityYear="2005" box="[810,922,299,323]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="genus">
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<emphasis id="B94EEAD0E50E927C4019A024D9993361" box="[810,922,299,323]" italics="true" pageId="21" pageNumber="464">Uteriporus</emphasis>
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</taxonomicName>
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from the Avachinska Bay and the
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<collectingRegion id="49FEF820E50E927C4203A044DB663341" box="[304,357,331,355]" country="Papua New Guinea" name="Gulf" pageId="21" pageNumber="464">Gulf</collectingRegion>
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of Kronotski, on the east coast of Kamchatka, and from the Komandorskyi Archipelago, namely
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<taxonomicName id="4C3A4D41E50E927C411FA064D89F33A1" authority="Sluys & Kawakatsu, 2005" authorityName="Sluys & Kawakatsu" authorityYear="2005" box="[556,668,363,387]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="genus" status="sp. nov.">
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<emphasis id="B94EEAD0E50E927C411FA064D89F33A1" box="[556,668,363,387]" italics="true" pageId="21" pageNumber="464">Uteriporus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A27D57ABE50E927C4196A064D8E433A1" box="[677,743,363,387]" pageId="21" pageNumber="464" rank="species">sp. n.</taxonomicNameLabel>
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The preserved specimens measured 5–9×
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<quantity id="4CC29B27E50E927C43F0A083DB083386" box="[195,267,396,420]" metricMagnitude="-3" metricUnit="m" metricValue="4.0" pageId="21" pageNumber="464" unit="mm" value="4.0">4 mm</quantity>
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, with rounded front and hind end. Dorsal surface red-brown, ventral surface pale. The posterior gut trunks fuse in the hind end of the body. Testes numerous, distributed between the gut diverticula and occurring throughout the body length. According to
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<bibRefCitation id="EFAB4B33E50E927C421DA0E2D8033027" author="Poljakova AA" box="[302,512,493,517]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova (1991)</bibRefCitation>
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, the oviducts fuse posterior to the male copulatory apparatus to form a common oviduct, which subsequently gives rise to three ducts (
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<figureCitation id="13012A47E50E927C4775A302DA9C3064" captionStart="Figures 28–30" captionStartId="20.[138,207,1113,1132]" captionTargetBox="[191,1130,133,1075]" captionTargetId="figure-150@20.[191,1132,133,1077]" captionTargetPageId="20" captionText="Figures 28–30. Procerodes plebeius and Uteriporus pacificus? (28) P. plebeius, V.Pl. 954.2, photomicrograph of penial papilla. (29) U. pacificus?, sagittal reconstruction of the copulatory apparatus (from Poljakova, 1991: figure 15B; labels adapted according to current terminology). (30) U. pacificus, specimen BC 7-5 (ZMA), photomicrograph of horizontal section of the receptacular duct; anterior to the left." figureDoi="http://doi.org/10.5281/zenodo.5221483" httpUri="https://zenodo.org/record/5221483/files/figure.png" pageId="21" pageNumber="464">Figure 29</figureCitation>
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): two receptacular ducts, opening into the anterior copulatory bursa, and the female genital duct that communicates with the atrium. According to
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<bibRefCitation id="EFAB4B33E50E927C4064A341DE233044" author="Poljakova AA" box="[855,1056,590,614]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova (1991)</bibRefCitation>
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, common oviduct and female genital duct are penetrated by shell glands.
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</paragraph>
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<paragraph id="8B8536C2E50E927C43ABA39FDE0A360F" blockId="21.[125,1173,299,1685]" pageId="21" pageNumber="464">
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In our opinion, Poljakova’s reconstruction of the female copulatory apparatus most likely is not fully correct. In the two species of the genus
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<taxonomicName id="4C3A4D41E50E927C41D0A3BFDE1D30EA" authority="Bergendal, 1890" authorityName="Bergendal" authorityYear="1890" box="[739,1054,688,712]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="genus">
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<emphasis id="B94EEAD0E50E927C41D0A3BFD95030EA" box="[739,851,688,712]" italics="true" pageId="21" pageNumber="464">Uteriporus</emphasis>
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Bergendal, 1890
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</taxonomicName>
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that have been described up to the present, the posterior, expanded portions of the receptacular ducts do not communicate directly with the female genital duct. The swollen portions of the receptacular ducts only receive a short, narrow branch of the oviduct before the latter communicates with the female genital duct (cf.
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<bibRefCitation id="EFAB4B33E50E927C41ADA23DD95A3168" author="Bergendal D" box="[670,857,818,842]" pageId="21" pageNumber="464" pagination="1 - 123" refId="ref8706" refString="Bergendal D. 1896. Studier ofver Turbellarier. II. Om byggnaden af Uteriporus Bgdl jamte andra bidrag till trikladernas anatomi. Kongliga Fysiografiska Sallskapets i Lund Handlingar Ny Foljd VII: 1 - 123, pls I - VI." type="journal article" year="1896">Bergendal 1896</bibRefCitation>
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: pl. 1, figure 4;
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<bibRefCitation id="EFAB4B33E50E927C473EA23DDE923168" author="Sluys R" box="[1037,1169,818,842]" pageId="21" pageNumber="464" refId="ref9110" refString="Sluys R. 1989. A Monograph of the Marine Triclads. Rotterdam and Brookfield: A. A. Balkema. XII + 463 p." type="book" year="1989">Sluys 1989</bibRefCitation>
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: figures 101–104). In her reconstruction,
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<bibRefCitation id="EFAB4B33E50E927C414AA25DD9443148" author="Poljakova AA" box="[633,839,850,874]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova (1991)</bibRefCitation>
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may have been misled by
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<bibRefCitation id="EFAB4B33E50E927C434EA27DDBF231A8" author="Tomkiewicz W & Ball IR" box="[125,497,882,906]" pageId="21" pageNumber="464" pagination="464 - 466" refId="ref9464" refString="Tomkiewicz W, Ball IR. 1973. Uteriporus vulgaris Bergendal, 1890, a marine triclad new to North America. Journal of the Fisheries Research Board of Canada 30: 464 - 466." type="journal article" year="1973">Tomkiewicz and Ball’s (1973)</bibRefCitation>
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description of the copulatory apparatus of
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<taxonomicName id="4C3A4D41E50E927C4720A27CDB403189" authority="Bergendal, 1890" authorityName="Bergendal" authorityYear="1890" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
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<emphasis id="B94EEAD0E50E927C4720A27CDE9731A8" box="[1043,1172,882,906]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
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Bergendal, 1890
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</taxonomicName>
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, since she bases her description of this species on the account of these workers and reproduces their reconstruction figure of the copulatory complex (incorrectly, Poljakova refers to Ball, 1973). However, Tomkiewicz and Ball’s reconstruction is incorrect in that it describes a direct connection between the expanded portions of the receptacular ducts and the female genital duct, as already noted by
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<bibRefCitation id="EFAB4B33E50E927C4032A51ADE06360F" author="Sluys R & Ball IR" box="[769,1029,1045,1069]" pageId="21" pageNumber="464" pagination="3 - 10" refId="ref9173" refString="Sluys R, Ball IR. 1983. On the status and identity of Procerodes warreni (Girard, 1850) (Turbellaria, Tricladida, Maricola). Mitteillungen aus dem Zoologischen Museum in Berlin 59: 3 - 10." type="journal article" year="1983">Sluys and Ball (1983)</bibRefCitation>
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.
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</paragraph>
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<paragraph id="8B8536C2E50E927F43ABA539DB8936B3" blockId="21.[125,1173,299,1685]" lastBlockId="22.[138,1185,984,1330]" lastPageId="22" lastPageNumber="465" pageId="21" pageNumber="464">
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On the basis of
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<bibRefCitation id="EFAB4B33E50E927C4255A539D846366C" author="Poljakova AA" box="[358,581,1078,1102]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova’s (1991)</bibRefCitation>
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description it is difficult to decide whether her specimens from the Far East represent
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<taxonomicName id="4C3A4D41E50E927C4177A558D8BD364C" authorityName="Bergendal" authorityYear="1890" box="[580,702,1110,1134]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
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<emphasis id="B94EEAD0E50E927C4177A558D8BD364C" box="[580,702,1110,1134]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C3A4D41E50E927C41FDA558D94C364C" authorityName="? Sluys" authorityYear="1989" box="[718,847,1110,1134]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
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<emphasis id="B94EEAD0E50E927C41FDA558D94C364C" box="[718,847,1110,1134]" italics="true" pageId="21" pageNumber="464">U. pacificus</emphasis>
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</taxonomicName>
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or a third, new species. For
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<taxonomicName id="4C3A4D41E50E927C434EA578DB0736AC" authorityName="? Sluys" authorityYear="1989" box="[125,260,1142,1166]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
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<emphasis id="B94EEAD0E50E927C434EA578DB0736AC" box="[125,260,1142,1166]" italics="true" pageId="21" pageNumber="464">U. pacificus</emphasis>
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</taxonomicName>
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a light brown or reddish brown dorsal surface was reported, which is in agreement with the Kamchatkan specimens, while the dorsal body surface of
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<taxonomicName id="4C3A4D41E50E927C472BA598DE97368D" authorityName="Bergendal" authorityYear="1890" box="[1048,1172,1175,1199]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
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<emphasis id="B94EEAD0E50E927C472BA598DE97368D" box="[1048,1172,1175,1199]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
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</taxonomicName>
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varies from milky white to pale brown. In
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<taxonomicName id="4C3A4D41E50E927C4190A5B7D92736ED" authorityName="Bergendal" authorityYear="1890" box="[675,804,1207,1231]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
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<emphasis id="B94EEAD0E50E927C4190A5B7D92736ED" box="[675,804,1207,1231]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
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</taxonomicName>
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the posterior sections of the receptacular ducts may be expanded to greater or lesser extent and thus may approach the generally smaller expansions in
|
||
<taxonomicName id="4C3A4D41E50E927C42C1A5F6D8773732" authorityName="? Sluys" authorityYear="1989" box="[498,628,1272,1296]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50E927C42C1A5F6D8773732" box="[498,628,1272,1296]" italics="true" pageId="21" pageNumber="464">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
as well as those reported by
|
||
<bibRefCitation id="EFAB4B33E50E927C40FFA5F7DE973732" author="Poljakova AA" box="[972,1172,1272,1296]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova (1991)</bibRefCitation>
|
||
for the Russian animals. According to
|
||
<bibRefCitation id="EFAB4B33E50E927C4108A417D8D03712" author="Sluys R" box="[571,723,1304,1328]" pageId="21" pageNumber="464" refId="ref9110" refString="Sluys R. 1989. A Monograph of the Marine Triclads. Rotterdam and Brookfield: A. A. Balkema. XII + 463 p." type="book" year="1989">Sluys (1989)</bibRefCitation>
|
||
, diagnostic features for
|
||
<taxonomicName id="4C3A4D41E50E927C40DBA416DE6A3712" authorityName="? Sluys" authorityYear="1989" box="[1000,1129,1304,1328]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50E927C40DBA416DE6A3712" box="[1000,1129,1304,1328]" italics="true" pageId="21" pageNumber="464">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
are the testes occupying the entire dorso-ventral space (contrasting with the ventral follicles in
|
||
<taxonomicName id="4C3A4D41E50E927C434EA455DAFA3753" authorityName="Bergendal" authorityYear="1890" box="[125,249,1369,1393]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
|
||
<emphasis id="B94EEAD0E50E927C434EA455DAFA3753" box="[125,249,1369,1393]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
|
||
</taxonomicName>
|
||
), and the absence of an anterior copulatory bursa (contrasting with the welldeveloped bursa in
|
||
<taxonomicName id="4C3A4D41E50E927C4258A475DBEB37B0" authorityName="Bergendal" authorityYear="1890" box="[363,488,1402,1426]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
|
||
<emphasis id="B94EEAD0E50E927C4258A475DBEB37B0" box="[363,488,1402,1426]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
|
||
</taxonomicName>
|
||
). Unfortunately,
|
||
<bibRefCitation id="EFAB4B33E50E927C418EA475D98B37B0" author="Poljakova AA" box="[701,904,1402,1426]" pageId="21" pageNumber="464" refId="ref8966" refString="Poljakova AA. 1991. Tricladida maricola in the Seas of the USSR / White Sea, Black Sea and Far Eastern Sea. Unpublished student report, University of Kazan, Chair of Invertebrate Zoology, 57 p. (in Russian)." type="book" year="1991">Poljakova (1991)</bibRefCitation>
|
||
does not describe the vertical dimension of the testes, but a photomicrograph of a histological section (her figure 16A) seems to suggest that a testis follicle extends considerably towards the dorsal body surface. In
|
||
<taxonomicName id="4C3A4D41E50E927C43CEA4D3DB7E37D1" authorityName="? Sluys" authorityYear="1989" box="[253,381,1499,1523]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50E927C43CEA4D3DB7E37D1" box="[253,381,1499,1523]" italics="true" pageId="21" pageNumber="464">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
the receptacular ducts fuse to form a common duct that opens to the exterior, whereas in
|
||
<taxonomicName id="4C3A4D41E50E927C4255A4F3DBDC3431" authorityName="Bergendal" authorityYear="1890" box="[358,479,1531,1555]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="vulgaris">
|
||
<emphasis id="B94EEAD0E50E927C4255A4F3DBDC3431" box="[358,479,1531,1555]" italics="true" pageId="21" pageNumber="464">U. vulgaris</emphasis>
|
||
</taxonomicName>
|
||
they open into an anterior bursa that subsequently opens to the outside. It must be noted that re-examination of the
|
||
<typeStatus id="54818860E50E927C4072A713D9713416" box="[833,882,1564,1588]" pageId="21" pageNumber="464">type</typeStatus>
|
||
material of
|
||
<taxonomicName id="4C3A4D41E50E927C473DA713DE973416" authorityName="? Sluys" authorityYear="1989" box="[1038,1172,1564,1588]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="21" pageNumber="464" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50E927C473DA713DE973416" box="[1038,1172,1564,1588]" italics="true" pageId="21" pageNumber="464">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
revealed that the receptacular ducts do not merely fuse to form a common duct but expand before uniting and/or open into a small expansion (
|
||
<figureCitation id="13012A47E50E927C41EAA752D9503457" box="[729,851,1629,1653]" captionStart="Figures 28–30" captionStartId="20.[138,207,1113,1132]" captionTargetBox="[191,1130,133,1075]" captionTargetId="figure-150@20.[191,1132,133,1077]" captionTargetPageId="20" captionText="Figures 28–30. Procerodes plebeius and Uteriporus pacificus? (28) P. plebeius, V.Pl. 954.2, photomicrograph of penial papilla. (29) U. pacificus?, sagittal reconstruction of the copulatory apparatus (from Poljakova, 1991: figure 15B; labels adapted according to current terminology). (30) U. pacificus, specimen BC 7-5 (ZMA), photomicrograph of horizontal section of the receptacular duct; anterior to the left." figureDoi="http://doi.org/10.5281/zenodo.5221483" httpUri="https://zenodo.org/record/5221483/files/figure.png" pageId="21" pageNumber="464">Figure 30</figureCitation>
|
||
). In the Russian specimens there seems to be an anterior bursa, which is suggested in Poljakova’s reconstruction drawing (
|
||
<figureCitation id="13012A47E50D927F43CBA2D7DB6D31D2" box="[248,366,984,1008]" captionStart="Figures 28–30" captionStartId="20.[138,207,1113,1132]" captionTargetBox="[191,1130,133,1075]" captionTargetId="figure-150@20.[191,1132,133,1077]" captionTargetPageId="20" captionText="Figures 28–30. Procerodes plebeius and Uteriporus pacificus? (28) P. plebeius, V.Pl. 954.2, photomicrograph of penial papilla. (29) U. pacificus?, sagittal reconstruction of the copulatory apparatus (from Poljakova, 1991: figure 15B; labels adapted according to current terminology). (30) U. pacificus, specimen BC 7-5 (ZMA), photomicrograph of horizontal section of the receptacular duct; anterior to the left." figureDoi="http://doi.org/10.5281/zenodo.5221483" httpUri="https://zenodo.org/record/5221483/files/figure.png" pageId="22" pageNumber="465">Figure 29</figureCitation>
|
||
) but also in a series of photomicrographs of serial sections (her figure 17). However, it must be noted that her reconstruction is not drawn to scale and that the photomicrographs show a distinct duct leading to the second, anterior gonopore. Such a duct is present in
|
||
<taxonomicName id="4C3A4D41E50D927F425AA536DBEE3672" authorityName="? Sluys" authorityYear="1989" box="[361,493,1080,1104]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="22" pageNumber="465" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50D927F425AA536DBEE3672" box="[361,493,1080,1104]" italics="true" pageId="22" pageNumber="465">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
, whereas in
|
||
<taxonomicName id="4C3A4D41E50D927F41B8A536D90B3672" authorityName="Bergendal" authorityYear="1890" box="[651,776,1080,1104]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="22" pageNumber="465" phylum="Platyhelminthes" rank="species" species="vulgaris">
|
||
<emphasis id="B94EEAD0E50D927F41B8A536D90B3672" box="[651,776,1080,1104]" italics="true" pageId="22" pageNumber="465">U. vulgaris</emphasis>
|
||
</taxonomicName>
|
||
there is only a short and shallow opening of the anterior bursa to the exterior (cf.
|
||
<bibRefCitation id="EFAB4B33E50D927F41E0A556D9923653" author="Bergendal D" box="[723,913,1113,1137]" pageId="22" pageNumber="465" pagination="1 - 123" refId="ref8706" refString="Bergendal D. 1896. Studier ofver Turbellarier. II. Om byggnaden af Uteriporus Bgdl jamte andra bidrag till trikladernas anatomi. Kongliga Fysiografiska Sallskapets i Lund Handlingar Ny Foljd VII: 1 - 123, pls I - VI." type="journal article" year="1896">Bergendal 1896</bibRefCitation>
|
||
: pl. 4, figure 32;
|
||
<bibRefCitation id="EFAB4B33E50D927F4750A556DACA36B3" author="Sluys R" pageId="22" pageNumber="465" refId="ref9110" refString="Sluys R. 1989. A Monograph of the Marine Triclads. Rotterdam and Brookfield: A. A. Balkema. XII + 463 p." type="book" year="1989">Sluys 1989</bibRefCitation>
|
||
: pl. 4, figure F).
|
||
</paragraph>
|
||
<caption id="DF45664AE50D927F43B9A226DADF31AE" ID-DOI="http://doi.org/10.5281/zenodo.5221485" ID-Zenodo-Dep="5221485" httpUri="https://zenodo.org/record/5221485/files/figure.png" pageId="22" pageNumber="465" startId="22.[138,198,809,828]" targetBox="[187,1140,135,770]" targetPageId="22">
|
||
<paragraph id="8B8536C2E50D927F43B9A226DADF31AE" blockId="22.[138,1185,809,908]" pageId="22" pageNumber="465">Figure 31. Map of species richness on an equal area grid map from the Worldmap program. Maximum richness shown in black and minimum in light grey, with intermediate scores grouped into grey-scale classes of approximately equal numbers of grid cells. Numbers within cells denote number of species recorded within that grid cell.</paragraph>
|
||
</caption>
|
||
<paragraph id="8B8536C2E50D927F4396A595DE8C3710" blockId="22.[138,1185,984,1330]" pageId="22" pageNumber="465">
|
||
Although we do not consider it to be impossible that an Atlantic species, like
|
||
<taxonomicName id="4C3A4D41E50D927F4713A595DE9A3690" authorityName="Bergendal" authorityYear="1890" box="[1056,1177,1178,1202]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="22" pageNumber="465" phylum="Platyhelminthes" rank="species" species="vulgaris">
|
||
<emphasis id="B94EEAD0E50D927F4713A595DE9A3690" box="[1056,1177,1178,1202]" italics="true" pageId="22" pageNumber="465">U. vulgaris</emphasis>
|
||
</taxonomicName>
|
||
, also occurs on the coasts of the Bering Sea, we do here attribute Poljakova’s animals to the species
|
||
<taxonomicName id="4C3A4D41E50D927F43D7A5D4DB6536D0" authorityName="? Sluys" authorityYear="1989" box="[228,358,1242,1266]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="22" pageNumber="465" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50D927F43D7A5D4DB6536D0" box="[228,358,1242,1266]" italics="true" pageId="22" pageNumber="465">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
, albeit with some reservations in view of the absence of more detailed anatomical information. This record considerably extends the range of
|
||
<taxonomicName id="4C3A4D41E50D927F4085A5F4DE353730" authorityName="? Sluys" authorityYear="1989" box="[950,1078,1274,1298]" family="Uteriporidae" genus="Uteriporus" kingdom="Animalia" order="Tricladida" pageId="22" pageNumber="465" phylum="Platyhelminthes" rank="species" species="pacificus">
|
||
<emphasis id="B94EEAD0E50D927F4085A5F4DE353730" box="[950,1078,1274,1298]" italics="true" pageId="22" pageNumber="465">U. pacificus</emphasis>
|
||
</taxonomicName>
|
||
since the species was originally recorded for the coast of
|
||
<collectingRegion id="49FEF820E50D927F4186A415D9813710" box="[693,898,1306,1330]" country="Canada" name="British Columbia" pageId="22" pageNumber="465">British Columbia</collectingRegion>
|
||
,
|
||
<collectingCountry id="F32D7652E50D927F40BCA415D9EB3710" box="[911,1000,1306,1330]" name="Canada" pageId="22" pageNumber="465">Canada</collectingCountry>
|
||
(
|
||
<bibRefCitation id="EFAB4B33E50D927F40CAA415DE813710" author="Sluys R" box="[1017,1154,1306,1330]" pageId="22" pageNumber="465" refId="ref9110" refString="Sluys R. 1989. A Monograph of the Marine Triclads. Rotterdam and Brookfield: A. A. Balkema. XII + 463 p." type="book" year="1989">Sluys 1989</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |