232 lines
27 KiB
XML
232 lines
27 KiB
XML
<document id="A26EC81157B81D28C6B8817F84D43518" ID-CLB-Dataset="45658" ID-DOI="10.11646/zootaxa.3802.4.1" ID-GBIF-Dataset="43524c34-a5b7-4f7e-908a-3e3b61ffc6db" ID-ISSN="1175-5326" ID-Zenodo-Dep="252490" ID-ZooBank="CF479CC3-C014-460D-9C71-3A6C2AB2778B" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460427181093" checkinUser="plazi" docAuthor="Jørgensen, Aslak, Boesgaard, Tom M., Møbjerg, Nadja & Kristensen, Reinhardt M." docDate="2014" docId="03F487B7FFABFFF268CE1B95D5C6A23D" docLanguage="en" docName="zt03802p443.pdf" docOrigin="Zootaxa 3802 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Dipodarctus susannae" docType="treatment" docVersion="9" lastPageNumber="416" masterDocId="FFCDFFCFFFA7FFFD68591B0DD61FA000" masterDocTitle="The tardigrade fauna of Australian marine caves: With descriptions of nine new species of Arthrotardigrada" masterLastPageNumber="443" masterPageNumber="401" pageNumber="413" updateTime="1698330854638" updateUser="ExternalLinkService">
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<mods:title id="A4A2C060C1A029976EE38B51D5AAFE1F">The tardigrade fauna of Australian marine caves: With descriptions of nine new species of Arthrotardigrada</mods:title>
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<mods:namePart id="C99F997C30F8A0914C7023F34D617780">Jørgensen, Aslak</mods:namePart>
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<mods:namePart id="B32E550FE3544DD5A3794749E4C9EA37">Boesgaard, Tom M.</mods:namePart>
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<mods:namePart id="C13D542EC544F359D73CA1C788B552E6">Møbjerg, Nadja</mods:namePart>
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<mods:name id="77ED92B9072D1A95FA76F50A279C1093" type="personal">
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<mods:namePart id="34DD94B40E58AD9B70DBC8B6070F0787">Kristensen, Reinhardt M.</mods:namePart>
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<mods:title id="2C5F644AABC51A008311CC673A2DA1E9">Zootaxa</mods:title>
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<mods:date id="91841C35BFC4F2453D65462AA0511376">2014</mods:date>
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<mods:number id="B46D04844812563A72F4CB65A1115336">3802</mods:number>
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<treatment id="03F487B7FFABFFF268CE1B95D5C6A23D" ID-DOI="http://doi.org/10.5281/zenodo.5691081" ID-Zenodo-Dep="5691081" LSID="urn:lsid:plazi:treatment:03F487B7FFABFFF268CE1B95D5C6A23D" httpUri="http://treatment.plazi.org/id/03F487B7FFABFFF268CE1B95D5C6A23D" lastPageId="15" lastPageNumber="416" pageId="12" pageNumber="413">
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<subSubSection id="C347652AFFABFFF168CE1B95D4DEA0B2" box="[151,705,152,178]" pageId="12" pageNumber="413" type="description">
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<paragraph id="8BE236A1FFABFFF168CE1B95D4DEA0B2" blockId="12.[151,705,152,178]" box="[151,705,152,178]" pageId="12" pageNumber="413">
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<heading id="D0AA81CDFFABFFF168CE1B95D4DEA0B2" bold="true" box="[151,705,152,178]" fontSize="11" level="1" pageId="12" pageNumber="413" reason="1">
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<emphasis id="B929EAB3FFABFFF168CE1B95D4DEA0B2" bold="true" box="[151,705,152,178]" pageId="12" pageNumber="413">
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Description of
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<taxonomicName id="4C5D4D22FFABFFF169161B95D443A0B2" ID-CoL="d9d2669b-b5d5-486a-b009-eceae265a8ba" box="[335,604,152,178]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="12" pageNumber="413" phylum="Tardigrada" rank="species" species="susannae">
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<emphasis id="B929EAB3FFABFFF169161B95D443A0B2" bold="true" box="[335,604,152,178]" italics="true" pageId="12" pageNumber="413">Dipodarctus susannae</emphasis>
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</taxonomicName>
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nov. sp.
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C347652AFFABFFF168CE1BD3D703A187" pageId="12" pageNumber="413" type="diagnosis">
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<paragraph id="8BE236A1FFABFFF168CE1BD3D703A187" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">
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<emphasis id="B929EAB3FFABFFF168CE1BD3D70EA0F7" bold="true" box="[151,273,222,247]" pageId="12" pageNumber="413">Diagnosis.</emphasis>
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A small
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<taxonomicName id="4C5D4D22FFABFFF169251BD3D418A0F7" box="[380,519,222,247]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="12" pageNumber="413" phylum="Tardigrada" rank="genus">
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<emphasis id="B929EAB3FFABFFF169251BD3D418A0F7" box="[380,519,222,247]" italics="true" pageId="12" pageNumber="413">Dipodarctus</emphasis>
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</taxonomicName>
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-species. Primary clavae are
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<emphasis id="B929EAB3FFABFFF16B171BD2D577A0F6" box="[846,872,223,246]" italics="true" pageId="12" pageNumber="413">ca</emphasis>
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. half of the total body length in the females. The kidney-shaped secondary clavae located rostrally between the internal and external cirri. The first three leg pairs with a long, dorsal digit IV with two spiralled folds. The fourth leg pair with two very long median digits with two spiraled folds. The sense organ of the fourth leg pair with a swollen base and a club-shaped scapus with a tiny spine (flagellum).
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</paragraph>
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</subSubSection>
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<subSubSection id="C347652AFFABFFF1689E1A9FD23DA23B" pageId="12" pageNumber="413" type="materials_examined">
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<paragraph id="8BE236A1FFABFFF1689E1A9FD23DA23B" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">
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<emphasis id="B929EAB3FFABFFF1689E1A9FD769A1AB" bold="true" box="[199,374,402,427]" pageId="12" pageNumber="413">
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<typeStatus id="54E68803FFABFFF1689E1A9FD71DA1AB" box="[199,258,402,427]" pageId="12" pageNumber="413">Type</typeStatus>
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material.
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</emphasis>
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The
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<typeStatus id="54E68803FFABFFF169EA1A9FD40AA1AB" box="[435,533,402,427]" pageId="12" pageNumber="413" type="holotype">holotype</typeStatus>
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(Fig. 4) is an adult female [
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<collectionCode id="ED4CAE64FFABFFF16B0F1A9ED5B5A1AB" box="[854,938,403,427]" httpUri="http://grbio.org/cool/mci8-ehqk" name="Zoological Museum, University of Copenhagen" pageId="12" pageNumber="413">ZMUC</collectionCode>
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<collectionCode id="ED4CAE64FFABFFF16BEB1A9ED5F7A1AB" box="[946,1000,403,427]" pageId="12" pageNumber="413">TAR</collectionCode>
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1288] with duct openings for seminal receptacles and fully developed female gonopore; collected on
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<date id="FFE31061FFABFFF16B331ABAD239A1CF" box="[874,1062,439,463]" pageId="12" pageNumber="413" value="1999-01-11">11 January 1999</date>
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from carbonate sand inside Fish Rock Cave. A total of 15
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<taxonomicName id="4C5D4D22FFABFFF169931AD7D44AA1F3" box="[458,597,474,499]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="12" pageNumber="413" phylum="Tardigrada" rank="genus">
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<emphasis id="B929EAB3FFABFFF169931AD7D44AA1F3" box="[458,597,474,499]" italics="true" pageId="12" pageNumber="413">Dipodarctus</emphasis>
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</taxonomicName>
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specimens were found in the samples of which 10 clearly belong to
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<taxonomicName id="4C5D4D22FFABFFF16DD81AD1D6E0A216" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="12" pageNumber="413" phylum="Tardigrada" rank="species" species="susannae">
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<emphasis id="B929EAB3FFABFFF16DD81AD1D6E0A216" italics="true" pageId="12" pageNumber="413">D. susannae</emphasis>
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</taxonomicName>
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<emphasis id="B929EAB3FFABFFF1695C1AF3D742A217" bold="true" box="[261,349,510,535]" pageId="12" pageNumber="413">nov. sp.</emphasis>
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(
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<tableCitation id="C6DF031AFFABFFF169351AF3D7A0A217" box="[364,447,510,535]" captionStart="TABLE 1" captionStartId="3.[151,238,152,175]" captionTargetBox="[159,1355,272,620]" captionTargetPageId="3" captionText="TABLE 1. Overview of the specimens collected at Fish Rock Cave (FRC) and Jim’s Cave (JC). If known the sex is stated as female (F), male (M) or larva (L). Undetermined species are also listed to give a better indication of the abundance of tardigrades in the samples." httpUri="http://table.plazi.org/id/DF226629FFA4FFFE68CE1B95D7B1A0EF" pageId="12" pageNumber="413" tableUuid="DF226629FFA4FFFE68CE1B95D7B1A0EF">Table 1</tableCitation>
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). Two specimens were mounted on SEM stubs (Fig. 5). The
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<typeStatus id="54E68803FFABFFF16C3A1AF2D28CA217" box="[1123,1171,511,535]" pageId="12" pageNumber="413">type</typeStatus>
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material is deposited in The Natural History Museum of
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<collectingCountry id="F34A7631FFABFFF16A5E192FD46DA23B" box="[519,626,546,571]" name="Denmark" pageId="12" pageNumber="413">Denmark</collectingCountry>
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, University of Copenhagen,
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<collectingCountry id="F34A7631FFABFFF16BEB192FD201A23B" box="[946,1054,546,571]" name="Denmark" pageId="12" pageNumber="413">Denmark</collectingCountry>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C347652AFFABFFF1689E194BD40FA283" pageId="12" pageNumber="413" type="etymology">
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<paragraph id="8BE236A1FFABFFF1689E194BD40FA283" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">
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<emphasis id="B929EAB3FFABFFF1689E194BD751A25F" bold="true" box="[199,334,582,607]" pageId="12" pageNumber="413">Etymology.</emphasis>
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The name honors Susanna de Zio Grimaldi for her continuous and outstanding contribution to the knowledge of marine tardigrades.
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</paragraph>
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</subSubSection>
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<subSubSection id="C347652AFFABFFF3689E1983D45DA7F1" lastPageId="14" lastPageNumber="415" pageId="12" pageNumber="413" type="description">
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<paragraph id="8BE236A1FFABFFF1689E1983D2D1A3C6" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">
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<emphasis id="B929EAB3FFABFFF1689E1983D400A2A7" bold="true" box="[199,543,654,679]" pageId="12" pageNumber="413">
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Description of the
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<typeStatus id="54E68803FFABFFF169E81983D405A2A7" box="[433,538,654,679]" pageId="12" pageNumber="413" type="holotype">holotype</typeStatus>
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.
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</emphasis>
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The holotypic female is 78 µm long and has a maximum width of 32 µm between second and third leg pairs (Fig. 4). Small head, giving the animal a box-like body form. Anteriorly the head is bents slightly ventrally with a complete set of
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<taxonomicName id="4C5D4D22FFABFFF16B5E19DBD5BAA2EF" box="[775,933,726,751]" class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" kingdom="Animalia" order="Arthrotardigrada" pageId="12" pageNumber="413" phylum="Tardigrada" rank="genus">
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<emphasis id="B929EAB3FFABFFF16B5E19DBD5BAA2EF" box="[775,933,726,751]" italics="true" pageId="12" pageNumber="413">Halechiniscus</emphasis>
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</taxonomicName>
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-like cephalic appendages (Figs 5A and 5B; SEM of
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<typeStatus id="54E68803FFABFFF168A519F6D77DA313" box="[252,354,763,787]" pageId="12" pageNumber="413" type="paratype">paratype</typeStatus>
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). The median cirrus of the
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<typeStatus id="54E68803FFABFFF16AFA19F7D51AA313" box="[675,773,762,787]" pageId="12" pageNumber="413" type="holotype">holotype</typeStatus>
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is 13 µm long, simple in form, without a cirrophorus or scapus. The 10 µm internal cirrus comprises a scapus and a thin composite flagellum divided into proximal and distal sections. The 8 µm external cirrus is comprises a scapus and a simple flagellum. The lateral cirrus and primary clava have a common cirrophorus. The 12 µm lateral cirrus consists of a scapus and flagellum. The 37 µm long primary clavae extends from a cirrophorus in which a “van der Land’s organ” is visible (Fig. 4). The rostral secondary clavae are situated between the internal and the external cirrus above the mouth cone.
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</paragraph>
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<paragraph id="8BE236A1FFABFFF1689E18DFD775A49F" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">The buccal tube is 15 µm long and ends in a minor bulbous tip with the mouth opening in the center of the cone. The needle-shaped stylets are 13 µm long. The straight stylet supports are 3 µm long and attached to the buccal tube and stylet furcae. Three slightly hooked-shaped placoids are visible in the three-lobed pharyngeal bulb. The pharyngeal bulb is connected to a large intestine through a short esophagus. The intestine ends at a posterior anus. When closed, the anus is covered with two overlapping folds giving it a typical ovoid appearance with a wave-like midline.</paragraph>
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<paragraph id="8BE236A1FFABFFF1689E1FA7D299A553" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">The reproductive system comprises a single ovary containing one large ovum as well as a few (dorsal) immature oocytes. The duct openings of the seminal receptacles are visible laterally between leg pair III and IV. Clearly visible are only the outer cuticular characters of the receptacles, therefore the ampullar part could not be described, and no spermatozoa are visible. The gonopore is located on a large ovoid papilla surrounded by a rosette of six cells typical of arthrotardigrades. The distance between gonopore and anus is 6 µm.</paragraph>
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<paragraph id="8BE236A1FFABFFF1689E1E53D536A5E3" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">Each leg consists of a coxa, femur, tibia and tarsus. Coxa and femur are not clearly telescopic. Coxa of the first three pair of legs bearing simple leg sense organs consisting of spines; measuring 5 µm (leg I) 8 µm (leg II) 12 µm (leg III). The 13 µm long somatic sense organ on leg IV consists of a papilla-like base (cirrophorus with a “van der Land’s organ”), a club-shaped scapus and a tiny flagellum.</paragraph>
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<paragraph id="8BE236A1FFABFFF1689E1EE3D43BA703" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">Each tarsus has four digits. The digits on the first three pair of legs (I–III) are of different length, three digits (ventral) of equal length (4 µm) with a calcar in the claws and one 7 µm long digit (dorsal) that bears a simple claw with a calcar but without accessory spine (Figs 5A and 5C). Horizontal peduncles are present at the base of the digits in the first three pair of legs. Peduncles are absent in the fourth leg pair (IV) on which the two external digits are shorter than their two internal counterparts. The long digit IV on leg pairs I–III have two joint-like folds (digits with parallel folds or spiraled digits). On leg pair IV the two internal digits have the same two joint-like folds. The two internal (median) digits are 8 µm long and have crescent-shaped claws with accessory spines. The external digits on leg pair IV are 4 µm long.</paragraph>
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<paragraph id="8BE236A1FFABFFF1689E1C03D28CA793" blockId="12.[151,1437,222,1939]" pageId="12" pageNumber="413">
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Claw glands are visible in the coxal part of each leg. Claws may be covered by a membranous sheath. A 25 µm long cirrus E is attached on the trunk just anteriorly to the insertion of the coxa of leg IV; it consists of a 3 µm long cirrophore and a 22 µm long flagellum (Fig. 5D). The scapus is indistinct and only visible by SEM (Fig. 5D). Morphometric data of the holotypic female of
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<taxonomicName id="4C5D4D22FFABFFF16AC61C71D536A793" box="[671,809,1916,1939]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="12" pageNumber="413" phylum="Tardigrada" rank="species" species="susannae">
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<emphasis id="B929EAB3FFABFFF16AC61C71D536A793" box="[671,809,1916,1939]" italics="true" pageId="12" pageNumber="413">D. susannae</emphasis>
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</taxonomicName>
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<emphasis id="B929EAB3FFABFFF16B691C77D595A793" bold="true" box="[816,906,1914,1939]" pageId="12" pageNumber="413">nov. sp.</emphasis>
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is presented in Table 2.
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</paragraph>
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<paragraph id="8BE236A1FFAAFFF068CE1DB4D395A74C" blockId="13.[151,1437,1721,1872]" pageId="13" pageNumber="414">
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<emphasis id="B929EAB3FFAAFFF068CE1DB4D70FA6CE" bold="true" box="[151,272,1721,1743]" pageId="13" pageNumber="414">FIGURE 4.</emphasis>
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Drawing of the holotypic female of
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<taxonomicName id="4C5D4D22FFAAFFF06A201DB4D544A6CF" box="[633,859,1721,1743]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="13" pageNumber="414" phylum="Tardigrada" rank="species" species="susannae">
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<emphasis id="B929EAB3FFAAFFF06A201DB4D544A6CF" box="[633,859,1721,1743]" italics="true" pageId="13" pageNumber="414">Dipodarctus susannae</emphasis>
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</taxonomicName>
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<emphasis id="B929EAB3FFAAFFF06B3B1DB4D5ACA6CE" bold="true" box="[866,947,1721,1742]" pageId="13" pageNumber="414">nov. sp.</emphasis>
|
||
viewed from the ventral surface. Abbreviations: an—anus; bt—buccal tube; cE—cirrus E; ce—lateral cephalic projection; cg—claw gland; ec—external cirrus; go—gonopore; ic—internal cirrus; lc—lateral cirrus; mc—median cirrus; mg—midgut; nu—nucleus in oocyte; oo—oocyte; ov—ovary; pb—pharyngeal bulb; pc—primary clava; pl—placoid; sc—secondary clava; se1–4—leg sense organs 1–4; sr—seminal receptacle; ss—stylet support; st—stylet; vo1—“van der Land’s organ” of primary clava; vb4—“Van der Land’s organ” of se4.
|
||
</paragraph>
|
||
<paragraph id="8BE236A1FFA9FFF368CE1C72D45DA7F1" blockId="14.[151,1436,1919,2037]" pageId="14" pageNumber="415">
|
||
<emphasis id="B929EAB3FFA9FFF368CE1C72D70FA795" bold="true" box="[151,272,1919,1941]" pageId="14" pageNumber="415">FIGURE 5.</emphasis>
|
||
SEM of
|
||
<taxonomicName id="4C5D4D22FFA9FFF369321C72D455A796" box="[363,586,1919,1942]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="14" pageNumber="415" phylum="Tardigrada" rank="species" species="susannae">
|
||
<emphasis id="B929EAB3FFA9FFF369321C72D455A796" box="[363,586,1919,1942]" italics="true" pageId="14" pageNumber="415">Dipodarctus susannae</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B929EAB3FFA9FFF36A091C8DD4BDA795" bold="true" box="[592,674,1920,1941]" pageId="14" pageNumber="415">nov. sp.</emphasis>
|
||
A. Frontal/ventral view. B. Close-up of head. C. Close-up of tarsus of first leg. D. Close-up of cirrus E. Abbreviations: ba—bacteria; ci—cirrophorus; co—coccolithophore plate; dd—dorsal digit; ec—external cirrus; fl—flagellum; ic—internal cirrus; lc—lateral cirrus; mc—median cirrus; mo—mouth cone; pc—primary clava; sa—scapus; se1—leg sense organ 1.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C347652AFFA8FFF2689E1B9AD5C6A23D" pageId="15" pageNumber="416" type="discussion">
|
||
<paragraph id="8BE236A1FFA8FFF2689E1B9AD5C6A23D" blockId="15.[151,1436,151,573]" pageId="15" pageNumber="416">
|
||
<emphasis id="B929EAB3FFA8FFF2689E1B9AD724A0B0" bold="true" box="[199,315,151,176]" pageId="15" pageNumber="416">Remarks.</emphasis>
|
||
Gallo D’Addabbo
|
||
<emphasis id="B929EAB3FFA8FFF26A411B94D44DA0B0" box="[536,594,151,176]" italics="true" pageId="15" pageNumber="416">et al.</emphasis>
|
||
(2001) have reported that
|
||
<taxonomicName id="4C5D4D22FFA8FFF26BDC1B9AD2B4A0B0" box="[901,1195,151,176]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="subterraneus">
|
||
<emphasis id="B929EAB3FFA8FFF26BDC1B9AD2B4A0B0" box="[901,1195,151,176]" italics="true" pageId="15" pageNumber="416">Dipodarctus subterraneus</emphasis>
|
||
</taxonomicName>
|
||
is the most common species in two well-investigated caves of San Domino Island (Mediterranean Sea). They found more than
|
||
<specimenCount id="9D5BFD28FFA8FFF26D2B1BB1D713A0F8" pageId="15" pageNumber="416" type="generic">500 specimens</specimenCount>
|
||
of this species together with four specimens of a new species of
|
||
<taxonomicName id="4C5D4D22FFA8FFF26C411BD2D2BCA0F8" box="[1048,1187,223,248]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="genus">
|
||
<emphasis id="B929EAB3FFA8FFF26C411BD2D2BCA0F8" box="[1048,1187,223,248]" italics="true" pageId="15" pageNumber="416">Dipodarctus</emphasis>
|
||
</taxonomicName>
|
||
closely related to
|
||
<taxonomicName id="4C5D4D22FFA8FFF26DD81BECD73BA11D" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="anaholiensis">
|
||
<emphasis id="B929EAB3FFA8FFF26DD81BECD73BA11D" italics="true" pageId="15" pageNumber="416">D. anaholiensis</emphasis>
|
||
</taxonomicName>
|
||
. They illustrate the adult female of
|
||
<taxonomicName id="4C5D4D22FFA8FFF26A991A08D569A11D" box="[704,886,260,285]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="subterraneus">
|
||
<emphasis id="B929EAB3FFA8FFF26A991A08D569A11D" box="[704,886,260,285]" italics="true" pageId="15" pageNumber="416">D. subterraneus</emphasis>
|
||
</taxonomicName>
|
||
from the Italian caves with a long dorsal toe on legs I–III. However, in the original description by Renaud-Mornat (1959) all toes are of similar length. It is clear that our new species is related to
|
||
<taxonomicName id="4C5D4D22FFA8FFF26A791A40D4C8A165" box="[544,727,332,357]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="subterraneus">
|
||
<emphasis id="B929EAB3FFA8FFF26A791A40D4C8A165" box="[544,727,332,357]" italics="true" pageId="15" pageNumber="416">D. subterraneus</emphasis>
|
||
</taxonomicName>
|
||
, but differs in the finer details; as regards all of the cephalic appendages, leg spines and cirri E. The sensory structure of the fourth leg pair is notably very different from all other
|
||
<taxonomicName id="4C5D4D22FFA8FFF268811A99D77CA1AD" box="[216,355,404,429]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="genus">
|
||
<emphasis id="B929EAB3FFA8FFF268811A99D77CA1AD" box="[216,355,404,429]" italics="true" pageId="15" pageNumber="416">Dipodarctus</emphasis>
|
||
</taxonomicName>
|
||
-species. In
|
||
<taxonomicName id="4C5D4D22FFA8FFF269B21A99D4FAA1AC" box="[491,741,404,429]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="susannae">
|
||
<emphasis id="B929EAB3FFA8FFF269B21A99D4FAA1AC" box="[491,741,404,429]" italics="true" pageId="15" pageNumber="416">Dipodarctus susannae</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B929EAB3FFA8FFF26AB41A99D559A1AD" bold="true" box="[749,838,404,429]" pageId="15" pageNumber="416">nov. sp.</emphasis>
|
||
this organ has a swollen basis (cirrophorus) with the “van der Land’s organ”, a long club-shaped scapus and a very short spine (flagellum). Furthermore the parallel folds of the digits in
|
||
<taxonomicName id="4C5D4D22FFA8FFF269D91AD0D42EA1F5" box="[384,561,476,501]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="australiensis">
|
||
<emphasis id="B929EAB3FFA8FFF269D91AD0D42EA1F5" box="[384,561,476,501]" italics="true" pageId="15" pageNumber="416">D. australiensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B929EAB3FFA8FFF26A601AD1D48DA1F5" bold="true" box="[569,658,476,501]" pageId="15" pageNumber="416">nov. sp.</emphasis>
|
||
and
|
||
<taxonomicName id="4C5D4D22FFA8FFF26A901AD0D54BA1F4" box="[713,852,477,500]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="susannae">
|
||
<emphasis id="B929EAB3FFA8FFF26A901AD0D54BA1F4" box="[713,852,477,500]" italics="true" pageId="15" pageNumber="416">D. susannae</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B929EAB3FFA8FFF26B021AD1D5ABA1F5" bold="true" box="[859,948,476,501]" pageId="15" pageNumber="416">nov. sp.</emphasis>
|
||
have not been reported from any described
|
||
<taxonomicName id="4C5D4D22FFA8FFF268CE1AF2D73DA218" box="[151,290,511,536]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="genus">
|
||
<emphasis id="B929EAB3FFA8FFF268CE1AF2D73DA218" box="[151,290,511,536]" italics="true" pageId="15" pageNumber="416">Dipodarctus</emphasis>
|
||
</taxonomicName>
|
||
species. The presence of rod-like peduncles in the fourth pair of legs in
|
||
<taxonomicName id="4C5D4D22FFA8FFF26CD2190CD35FA218" box="[1163,1344,511,536]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="species" species="australiensis">
|
||
<emphasis id="B929EAB3FFA8FFF26CD2190CD35FA218" box="[1163,1344,511,536]" italics="true" pageId="15" pageNumber="416">D. australiensis</emphasis>
|
||
</taxonomicName>
|
||
is very interesting as these structures are missing in all other
|
||
<taxonomicName id="4C5D4D22FFA8FFF26AB71929D566A23D" box="[750,889,548,573]" class="Heterotardigrada" family="Halechiniscidae" genus="Dipodarctus" kingdom="Animalia" order="Arthrotardigrada" pageId="15" pageNumber="416" phylum="Tardigrada" rank="genus">
|
||
<emphasis id="B929EAB3FFA8FFF26AB71929D566A23D" box="[750,889,548,573]" italics="true" pageId="15" pageNumber="416">Dipodarctus</emphasis>
|
||
</taxonomicName>
|
||
species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |