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<document id="28DAADA3C559C7FC44750B186CFB38EE" ID-DOI="10.5281/zenodo.181066" ID-GBIF-Dataset="7e340a0c-b13c-43f7-b8df-e0c7a589094c" ID-ISSN="1175-5326" ID-Zenodo-Dep="181066" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459826386589" checkinUser="plazi" docAuthor="Hooge, Matthew D. &amp; Tyler, Seth" docDate="2008" docId="0390C135C51D9660A5A4FE7BFEF6715A" docLanguage="en" docName="zt01719p040.pdf" docOrigin="Zootaxa 1719" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Daku riegeri Hooge &amp; Tyler, 2008, sp. nov." docType="treatment" docVersion="9" lastPageNumber="8" masterDocId="FFA9B94DC5189668A533FF91FFB87058" masterDocTitle="Acoela (Acoelomorpha) from Bocas del Toro, Panama" masterLastPageNumber="40" masterPageNumber="1" pageNumber="6" updateTime="1698222319859" updateUser="plazi">
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<mods:title id="AC56A8697A2B6435F9E1F8CCCFF0ED4B">Acoela (Acoelomorpha) from Bocas del Toro, Panama</mods:title>
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<mods:namePart id="AD54A3D2FAC68E8F8AE29EFECF24A2E1">Hooge, Matthew D.</mods:namePart>
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<mods:namePart id="8BFFDAE779010E71EBF41EDD8C655E18">Tyler, Seth</mods:namePart>
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<mods:date id="9ECB5834A3790D0D7DCD02BB3E03683F">2008</mods:date>
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<treatment id="0390C135C51D9660A5A4FE7BFEF6715A" ID-DOI="http://doi.org/10.5281/zenodo.6231365" ID-GBIF-Taxon="119356783" ID-Zenodo-Dep="6231365" LSID="urn:lsid:plazi:treatment:0390C135C51D9660A5A4FE7BFEF6715A" httpUri="http://treatment.plazi.org/id/0390C135C51D9660A5A4FE7BFEF6715A" lastPageId="8" lastPageNumber="8" pageId="5" pageNumber="6">
<subSubSection id="C32323A8C51D966DA5A4FE7BFEA0727F" pageId="5" pageNumber="6" type="nomenclature">
<paragraph id="8B867023C51D966DA5A4FE7BFE2D725C" blockId="5.[151,526,421,551]" box="[151,405,490,516]" pageId="5" pageNumber="6">
<heading id="D0CEC74FC51D966DA5A4FE7BFE2D725C" bold="true" box="[151,405,490,516]" fontSize="11" level="1" pageId="5" pageNumber="6" reason="1">
<emphasis id="B94DAC31C51D966DA5A4FE7BFE2D725C" bold="true" box="[151,405,490,516]" pageId="5" pageNumber="6">
<taxonomicName id="4C390BA0C51D966DA5A4FE7BFE88725C" ID-CoL="33YQL" box="[151,304,490,516]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="5" pageNumber="6" phylum="Xenacoelomorpha" rank="species" species="riegeri" status="sp. nov.">
<emphasis id="B94DAC31C51D966DA5A4FE7BFE88725C" bold="true" box="[151,304,490,516]" italics="true" pageId="5" pageNumber="6">Daku riegeri</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27E114AC51D966DA40BFE7BFE2D725C" box="[312,405,490,516]" pageId="5" pageNumber="6" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8B867023C51D966DA5A4FD9CFEA0727F" blockId="5.[151,526,421,551]" box="[151,280,525,551]" pageId="5" pageNumber="6">
(
<figureCitation id="13026CA6C51D966DA5ACFD9CFEB7727F" box="[159,271,525,551]" captionStart-0="FIGURE 3" captionStart-1="FIGURE 4" captionStart-2="FIGURE 5" captionStart-3="FIGURE 6" captionStartId-0="5.[151,255,1970,1994]" captionStartId-1="6.[151,255,1739,1763]" captionStartId-2="7.[151,255,1660,1684]" captionStartId-3="8.[151,255,891,915]" captionTargetBox-0="[323,1268,743,1955]" captionTargetBox-1="[264,1323,994,1714]" captionTargetBox-2="[264,1322,183,1632]" captionTargetBox-3="[264,1322,317,863]" captionTargetId-0="figure@5.[318,1269,743,1955]" captionTargetId-1="figure@6.[264,1323,994,1715]" captionTargetId-2="figure@7.[264,1323,183,1634]" captionTargetId-3="figure@8.[264,1323,317,865]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionTargetPageId-2="7" captionTargetPageId-3="8" captionText-0="FIGURE 3. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Whole animal. B. Male and female copulatory organs." captionText-1="FIGURE 4. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Ventral view showing gonopore and male copulatory organ. B. Ventral view showing copulatory organs." captionText-2="FIGURE 5. Daku riegeri sp. nov.; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs." captionText-3="FIGURE 6. Daku riegeri sp. nov.; photomicrographs of whole-mounts stained with Alexa- 488 - labeled phalloidin and viewed with confocal microscopy. A. Projection of seminal vesicle and antrum musculature. B, C. Optical sections of copulatory organ musculature. Arrowheads point to actin-rich bodies within seminal bursa." httpUri-0="https://zenodo.org/record/181069/files/figure.png" httpUri-1="https://zenodo.org/record/181070/files/figure.png" httpUri-2="https://zenodo.org/record/181071/files/figure.png" httpUri-3="https://zenodo.org/record/181072/files/figure.png" pageId="5" pageNumber="6">Figs. 36</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C32323A8C51D966EA5A4FDC3FE0D710A" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6" type="materials_examined">
<paragraph id="8B867023C51D966DA5A4FDC3FC8572E4" blockId="5.[151,1436,594,700]" pageId="5" pageNumber="6">
<emphasis id="B94DAC31C51D966DA5A4FDC3FEFE7234" bold="true" box="[151,326,594,620]" pageId="5" pageNumber="6">
<typeStatus id="5482CE81C51D966DA5A4FDC3FF6A7234" box="[151,210,594,620]" pageId="5" pageNumber="6">Type</typeStatus>
Material
</emphasis>
.
<typeStatus id="5482CE81C51D966DA46EFDC3FE767234" box="[349,462,594,620]" pageId="5" pageNumber="6" type="holotype">Holotype</typeStatus>
.
<collectionCode id="ED28E8E6C51D966DA4EBFDC3FD957234" LSID="urn:lsid:biocol.org:col:34871" box="[472,557,594,620]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="5" pageNumber="6">USNM</collectionCode>
1096764, one set of 2-µm-thick serial sagittal sections of epoxy-embedded specimen stained with toluidine blue.
<typeStatus id="5482CE81C51D966DA761FDEBFD0472CC" box="[594,700,634,660]" pageId="5" pageNumber="6" type="paratype">Paratype</typeStatus>
.
<collectionCode id="ED28E8E6C51D966DA7F4FDEBFCA472CC" LSID="urn:lsid:biocol.org:col:34871" box="[711,796,634,660]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="5" pageNumber="6">USNM</collectionCode>
1096765, one set of 2-µm-thick serial sagittal sections of epoxy-embedded specimen stained with toluidine blue.
</paragraph>
<caption id="DF4620ABC51D966DA5A4F823FE9277B4" httpUri="https://zenodo.org/record/181069/files/figure.png" pageId="5" pageNumber="6" targetBox="[323,1268,743,1955]" targetPageId="5">
<paragraph id="8B867023C51D966DA5A4F823FE9277B4" blockId="5.[151,1436,1970,2028]" pageId="5" pageNumber="6">
<emphasis id="B94DAC31C51D966DA5A4F823FEA17792" bold="true" box="[151,281,1970,1994]" pageId="5" pageNumber="6">FIGURE 3.</emphasis>
<taxonomicName id="4C390BA0C51D966DA412F822FE137792" box="[289,427,1971,1994]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="5" pageNumber="6" phylum="Xenacoelomorpha" rank="species" species="riegeri" status="sp. nov.">
<emphasis id="B94DAC31C51D966DA412F822FE137792" box="[289,427,1971,1994]" italics="true" pageId="5" pageNumber="6">Daku riegeri</emphasis>
</taxonomicName>
<emphasis id="B94DAC31C51D966DA482F823FDBF7792" bold="true" box="[433,519,1970,1994]" pageId="5" pageNumber="6">
<taxonomicNameLabel id="A27E114AC51D966DA482F823FDBF7792" box="[433,519,1970,1994]" pageId="5" pageNumber="6" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
; photomicrographs of living specimens. A. Whole animal. B. Male and female copulatory organs.
</paragraph>
</caption>
<paragraph id="8B867023C51E966EA5F5FF06FDF37082" blockId="6.[151,1437,151,938]" pageId="6" pageNumber="7">
<emphasis id="B94DAC31C51E966EA5F5FF06FEC870E9" bold="true" box="[198,368,151,177]" pageId="6" pageNumber="7">
<typeStatus id="5482CE81C51E966EA5F5FF06FEBC70E9" box="[198,260,151,177]" pageId="6" pageNumber="7">Type</typeStatus>
Locality
</emphasis>
.
<collectingCountry id="F32E30B3C51E966EA4B3FF09FE1270EA" box="[384,426,152,178]" name="Iceland" pageId="6" pageNumber="7">Isla</collectingCountry>
Bastimentos (
<geoCoordinate id="EE0D16E4C51E966EA767FF09FD5270EA" box="[596,746,152,178]" direction="north" orientation="latitude" pageId="6" pageNumber="7" precision="1" value="9.3483">9°20.898 N</geoCoordinate>
,
<geoCoordinate id="EE0D16E4C51E966EA7C4FF09FC2C70EA" box="[759,916,152,178]" direction="west" orientation="longitude" pageId="6" pageNumber="7" precision="1" value="-82.165985">82°9.959 W</geoCoordinate>
), from subtidal, clean, coarse-grained, wellsorted sand surrounded by
<taxonomicName id="4C390BA0C51E966EA4E0FF51FDFD7081" box="[467,581,192,217]" class="Liliopsida" family="Hydrocharitaceae" genus="Thalassia" kingdom="Animalia" order="Alismatales" pageId="6" pageNumber="7" phylum="Tracheophyta" rank="genus">
<emphasis id="B94DAC31C51E966EA4E0FF51FDFD7081" box="[467,581,192,217]" italics="true" pageId="6" pageNumber="7">Thalassia</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B867023C51E966EA5F5FF76FE0D710A" blockId="6.[151,1437,151,938]" pageId="6" pageNumber="7">
<emphasis id="B94DAC31C51E966EA5F5FF76FDA87159" bold="true" box="[198,528,231,257]" pageId="6" pageNumber="7">Other Material Examined</emphasis>
. Living specimens in squeeze preparations from
<collectingCountry id="F32E30B3C51E966EA154FF79FB29715A" box="[1127,1169,232,258]" name="Iceland" pageId="6" pageNumber="7">Isla</collectingCountry>
Colon, Mangrove Inn (919.870 N,
<geoCoordinate id="EE0D16E4C51E966EA40AFE81FE5E7172" box="[313,486,272,298]" direction="west" orientation="longitude" pageId="6" pageNumber="7" precision="1" value="-82.25477">82°15.286 W</geoCoordinate>
), from fine-grained sand at
<quantity id="4CC1DDC6C51E966EA604FE81FC3C7172" box="[823,900,272,298]" metricMagnitude="0" metricUnit="m" metricValue="3.5" metricValueMax="4.0" metricValueMin="3.0" pageId="6" pageNumber="7" unit="m" value="3.5" valueMax="4.0" valueMin="3.0">34 m</quantity>
water depth; whole mounts for fluorescence imaging of musculature.
</paragraph>
</subSubSection>
<subSubSection id="C32323A8C51E966EA5F5FECEFBC971FA" pageId="6" pageNumber="7" type="etymology">
<paragraph id="8B867023C51E966EA5F5FECEFBC971FA" blockId="6.[151,1437,151,938]" pageId="6" pageNumber="7">
<emphasis id="B94DAC31C51E966EA5F5FECEFEF37121" bold="true" box="[198,331,351,377]" pageId="6" pageNumber="7">Etymology</emphasis>
. Species named in memory of Prof. Dr. Reinhard Rieger, a mentor and friend, in honor of his significant contributions to our understanding of acoel morphology and systematics.
</paragraph>
</subSubSection>
<subSubSection id="C32323A8C51E966EA5F5FE3EFDCE77AB" pageId="6" pageNumber="7" type="description">
<paragraph id="8B867023C51E966EA5F5FE3EFDBD721A" blockId="6.[151,1437,151,938]" pageId="6" pageNumber="7">
<emphasis id="B94DAC31C51E966EA5F5FE3EFEEF7191" bold="true" box="[198,343,431,457]" pageId="6" pageNumber="7">Description</emphasis>
. Living specimens ~500 µm long and ~150 µm wide (
<figureCitation id="13026CA6C51E966EA6D6FE21FB927192" box="[997,1066,432,458]" captionStart="FIGURE 3" captionStartId="5.[151,255,1970,1994]" captionTargetBox="[323,1268,743,1955]" captionTargetId="figure@5.[318,1269,743,1955]" captionTargetPageId="5" captionText="FIGURE 3. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Whole animal. B. Male and female copulatory organs." httpUri="https://zenodo.org/record/181069/files/figure.png" pageId="6" pageNumber="7">Fig. 3</figureCitation>
A). Anterior and posterior ends rounded. Epidermis without conspicuous coloration in transmitted light. Epidermis completely ciliated. Rhabdoid glands present in distinct longitudinal rows. Frontal organ well developed. Mouth opening on ventral surface, middle of body (
<figureCitation id="13026CA6C51E966EA4AAFDB9FE67721A" box="[409,479,552,578]" captionStart="FIGURE 5" captionStartId="7.[151,255,1660,1684]" captionTargetBox="[264,1322,183,1632]" captionTargetId="figure@7.[264,1323,183,1634]" captionTargetPageId="7" captionText="FIGURE 5. Daku riegeri sp. nov.; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs." httpUri="https://zenodo.org/record/181071/files/figure.png" pageId="6" pageNumber="7">Fig. 5</figureCitation>
A).
</paragraph>
<paragraph id="8B867023C51E966EA5F5FDC1FCF072CA" blockId="6.[151,1437,151,938]" pageId="6" pageNumber="7">
Ovaries paired, ventral; extends from mouth posteriorly to seminal bursa. Testes paired, lateral to ovary; extend from level of statocyst to seminal vesicle (
<figureCitation id="13026CA6C51E966EA7EFFDE9FC9A72CA" box="[732,802,632,658]" captionStart="FIGURE 5" captionStartId="7.[151,255,1660,1684]" captionTargetBox="[264,1322,183,1632]" captionTargetId="figure@7.[264,1323,183,1634]" captionTargetPageId="7" captionText="FIGURE 5. Daku riegeri sp. nov.; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs." httpUri="https://zenodo.org/record/181071/files/figure.png" pageId="6" pageNumber="7">Fig. 5</figureCitation>
A).
</paragraph>
<paragraph id="8B867023C51E966EA5F5FD31FCDC73F2" blockId="6.[151,1437,151,938]" pageId="6" pageNumber="7">
Common gonopore ventral at posterior end of body opens to ciliated atrium surrounded on posterior and lateral sides by circularly oriented muscle fibers (
<figureCitation id="13026CA6C51E966EA7E9FD59FC9372BA" box="[730,811,712,738]" captionStart="FIGURE 4" captionStartId="6.[151,255,1739,1763]" captionTargetBox="[264,1323,994,1714]" captionTargetId="figure@6.[264,1323,994,1715]" captionTargetPageId="6" captionText="FIGURE 4. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Ventral view showing gonopore and male copulatory organ. B. Ventral view showing copulatory organs." httpUri="https://zenodo.org/record/181070/files/figure.png" pageId="6" pageNumber="7">Figs. 4</figureCitation>
A, 5B, C, 6A, C). Atrium branches anteriorly to male copulatory organ and dorsally to vagina (
<figureCitation id="13026CA6C51E966EA745FD61FD7F7352" box="[630,711,752,778]" captionStart="FIGURE 5" captionStartId="7.[151,255,1660,1684]" captionTargetBox="[264,1322,183,1632]" captionTargetId="figure@7.[264,1323,183,1634]" captionTargetPageId="7" captionText="FIGURE 5. Daku riegeri sp. nov.; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs." httpUri="https://zenodo.org/record/181071/files/figure.png" pageId="6" pageNumber="7">Figs. 5</figureCitation>
B, C). Behind male copulatory organ, vagina filled with large, spindle-shaped, erythrophilic glands that are grouped in a fan-like arrangement when viewed ventrally or dorsally (
<figureCitation id="13026CA6C51E966EA5D3FCD1FE8B7302" box="[224,307,832,858]" captionStart="FIGURE 3" captionStartId="5.[151,255,1970,1994]" captionTargetBox="[323,1268,743,1955]" captionTargetId="figure@5.[318,1269,743,1955]" captionTargetPageId="5" captionText="FIGURE 3. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Whole animal. B. Male and female copulatory organs." httpUri="https://zenodo.org/record/181069/files/figure.png" pageId="6" pageNumber="7">Figs. 3</figureCitation>
B, 4B, 5AD). Vagina passes over male copulatory organ to seminal bursa positioned immediately anterior to seminal vesicle (
<figureCitation id="13026CA6C51E966EA715FCF9FDC073DA" box="[550,632,872,898]" captionStart="FIGURE 5" captionStartId="7.[151,255,1660,1684]" captionTargetBox="[264,1322,183,1632]" captionTargetId="figure@7.[264,1323,183,1634]" captionTargetPageId="7" captionText="FIGURE 5. Daku riegeri sp. nov.; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs." httpUri="https://zenodo.org/record/181071/files/figure.png" pageId="6" pageNumber="7">Figs. 5</figureCitation>
D, 6B). Wall of seminal vesicle composed of many small cells and may contain some spots of concentrated actin (
<figureCitation id="13026CA6C51E966EA78FFC01FCB473F2" box="[700,780,912,938]" captionStart="FIGURE 5" captionStartId="7.[151,255,1660,1684]" captionTargetBox="[264,1322,183,1632]" captionTargetId="figure@7.[264,1323,183,1634]" captionTargetPageId="7" captionText="FIGURE 5. Daku riegeri sp. nov.; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs." httpUri="https://zenodo.org/record/181071/files/figure.png" pageId="6" pageNumber="7">Figs. 5</figureCitation>
D, 6B).
</paragraph>
<caption id="DF4620ABC51E966EA5A4F95AFC96775D" httpUri="https://zenodo.org/record/181070/files/figure.png" pageId="6" pageNumber="7" targetBox="[264,1323,994,1714]" targetPageId="6">
<paragraph id="8B867023C51E966EA5A4F95AFC96775D" blockId="6.[151,1436,1739,1797]" pageId="6" pageNumber="7">
<emphasis id="B94DAC31C51E966EA5A4F95AFEA176BB" bold="true" box="[151,281,1739,1763]" pageId="6" pageNumber="7">FIGURE 4.</emphasis>
<taxonomicName id="4C390BA0C51E966EA412F95DFE1276BB" box="[289,426,1740,1763]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="6" pageNumber="7" phylum="Xenacoelomorpha" rank="species" species="riegeri" status="sp. nov.">
<emphasis id="B94DAC31C51E966EA412F95DFE1276BB" box="[289,426,1740,1763]" italics="true" pageId="6" pageNumber="7">Daku riegeri</emphasis>
</taxonomicName>
<emphasis id="B94DAC31C51E966EA482F95AFDBF76BB" bold="true" box="[433,519,1739,1763]" pageId="6" pageNumber="7">
<taxonomicNameLabel id="A27E114AC51E966EA482F95AFDBF76BB" box="[433,519,1739,1763]" pageId="6" pageNumber="7" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
; photomicrographs of living specimens. A. Ventral view showing gonopore and male copulatory organ. B. Ventral view showing copulatory organs.
</paragraph>
</caption>
<paragraph id="8B867023C51E966EA5F5F8A8FDCE77AB" blockId="6.[151,1436,1849,2035]" pageId="6" pageNumber="7">
Male copulatory organ composed of seminal vesicle that surrounds sperm and penis (
<figureCitation id="13026CA6C51E966EA1F3F8A8FAAB770B" box="[1216,1299,1849,1875]" captionStart="FIGURE 3" captionStartId="5.[151,255,1970,1994]" captionTargetBox="[323,1268,743,1955]" captionTargetId="figure@5.[318,1269,743,1955]" captionTargetPageId="5" captionText="FIGURE 3. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Whole animal. B. Male and female copulatory organs." httpUri="https://zenodo.org/record/181069/files/figure.png" pageId="6" pageNumber="7">Figs. 3</figureCitation>
B, 4B, 5B). Muscular wall of seminal vesicle with regularly spaced circular and longitudinal fibers (
<figureCitation id="13026CA6C51E966EA19CF8F0FB4E7723" box="[1199,1270,1889,1915]" captionStart="FIGURE 6" captionStartId="8.[151,255,891,915]" captionTargetBox="[264,1322,317,863]" captionTargetId="figure@8.[264,1323,317,865]" captionTargetPageId="8" captionText="FIGURE 6. Daku riegeri sp. nov.; photomicrographs of whole-mounts stained with Alexa- 488 - labeled phalloidin and viewed with confocal microscopy. A. Projection of seminal vesicle and antrum musculature. B, C. Optical sections of copulatory organ musculature. Arrowheads point to actin-rich bodies within seminal bursa." httpUri="https://zenodo.org/record/181072/files/figure.png" pageId="6" pageNumber="7">Fig. 6</figureCitation>
A). Sperm fill majority of seminal vesicle space; sperm at distal end aligned in parallel. Bowl-shaped, glandular penis, composed of lamellae-like cells that stain metachromatically for glycoseaminoglycans and positioned at the distal end of seminal vesicle (
<figureCitation id="13026CA6C51E966EA49FF848FE4577AB" box="[428,509,2009,2035]" captionStart="FIGURE 4" captionStartId="6.[151,255,1739,1763]" captionTargetBox="[264,1323,994,1714]" captionTargetId="figure@6.[264,1323,994,1715]" captionTargetPageId="6" captionText="FIGURE 4. Daku riegeri sp. nov.; photomicrographs of living specimens. A. Ventral view showing gonopore and male copulatory organ. B. Ventral view showing copulatory organs." httpUri="https://zenodo.org/record/181070/files/figure.png" pageId="6" pageNumber="7">Figs. 4</figureCitation>
A, B, 5B).
</paragraph>
</subSubSection>
<caption id="DF4620ABC51F966FA5A4F9EDFE3C76EE" httpUri="https://zenodo.org/record/181071/files/figure.png" pageId="7" pageNumber="8" targetBox="[264,1322,183,1632]" targetPageId="7">
<paragraph id="8B867023C51F966FA5A4F9EDFE3C76EE" blockId="7.[151,1435,1660,1718]" pageId="7" pageNumber="8">
<emphasis id="B94DAC31C51F966FA5A4F9EDFEA276CC" bold="true" box="[151,282,1660,1684]" pageId="7" pageNumber="8">FIGURE 5.</emphasis>
<taxonomicName id="4C390BA0C51F966FA413F9ECFE1176CC" box="[288,425,1661,1684]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="species" species="riegeri" status="sp. nov.">
<emphasis id="B94DAC31C51F966FA413F9ECFE1176CC" box="[288,425,1661,1684]" italics="true" pageId="7" pageNumber="8">Daku riegeri</emphasis>
</taxonomicName>
<emphasis id="B94DAC31C51F966FA482F9EDFDBE76CC" bold="true" box="[433,518,1660,1684]" pageId="7" pageNumber="8">
<taxonomicNameLabel id="A27E114AC51F966FA482F9EDFDBE76CC" box="[433,518,1660,1684]" pageId="7" pageNumber="8" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
; photomicrographs of sagittal histological sections of holotype. A. Whole animal. B D. Copulatory organs.
</paragraph>
</caption>
<subSubSection id="C32323A8C51F9660A5F5F896FEF6715A" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8" type="discussion">
<paragraph id="8B867023C51F9660A5F5F896FEF6715A" blockId="7.[151,1437,1799,2025]" lastBlockId="8.[151,1436,152,258]" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8">
<emphasis id="B94DAC31C51F966FA5F5F896FE807779" bold="true" box="[198,312,1799,1825]" pageId="7" pageNumber="8">Remarks</emphasis>
. The family
<taxonomicName id="4C390BA0C51F966FA4E3F896FDF87779" box="[464,576,1799,1825]" class="Acoelomorpha" family="Dakuidae" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="family">Dakuidae</taxonomicName>
is a monotypic taxon established for
<taxonomicName id="4C390BA0C51F966FA6C4F899FACC7779" authority="Hooge, 2003" authorityName="Hooge" authorityYear="2003" box="[1015,1396,1799,1825]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="species" species="woorimensis">
<emphasis id="B94DAC31C51F966FA6C4F899FB6A7779" box="[1015,1234,1800,1825]" italics="true" pageId="7" pageNumber="8">Daku woorimensis</emphasis>
Hooge, 2003
</taxonomicName>
, an interstitial acoel from Queensland,
<collectingCountry id="F32E30B3C51F966FA705F8BEFD197711" box="[566,673,1839,1865]" name="Australia" pageId="7" pageNumber="8">Australia</collectingCountry>
that has a glandular penis surrounded by a thick-walled, muscular seminal vesicle. The penis of
<taxonomicName id="4C390BA0C51F966FA728F8C9FD377729" box="[539,655,1880,1905]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="species" species="riegeri">
<emphasis id="B94DAC31C51F966FA728F8C9FD377729" box="[539,655,1880,1905]" italics="true" pageId="7" pageNumber="8">D. riegeri</emphasis>
</taxonomicName>
is similarly configured; however, its penis and seminal vesicle are less well-developed and its penis stains pink with toluidine blue, while the glandular penis of
<taxonomicName id="4C390BA0C51F966FA1D7F811FA2377C1" box="[1252,1435,1920,1945]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="species" species="woorimensis">
<emphasis id="B94DAC31C51F966FA1D7F811FA2377C1" box="[1252,1435,1920,1945]" italics="true" pageId="7" pageNumber="8">D. woorimensis</emphasis>
</taxonomicName>
stains blue.
<taxonomicName id="4C390BA0C51F966FA414F839FE797799" box="[295,449,1960,1985]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="species" species="riegeri">
<emphasis id="B94DAC31C51F966FA414F839FE797799" box="[295,449,1960,1985]" italics="true" pageId="7" pageNumber="8">Daku riegeri</emphasis>
</taxonomicName>
also differs from
<taxonomicName id="4C390BA0C51F966FA7AFF839FCEF7799" box="[668,855,1960,1985]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="7" pageNumber="8" phylum="Xenacoelomorpha" rank="species" species="woorimensis">
<emphasis id="B94DAC31C51F966FA7AFF839FCEF7799" box="[668,855,1960,1985]" italics="true" pageId="7" pageNumber="8">D. woorimensis</emphasis>
</taxonomicName>
in having a common gonopore, a vagina that is positioned posterior to the male copulatory organ, and in lacking a disjunct bursal nozzle. F-actin stained wholemounts of
<taxonomicName id="4C390BA0C5109660A468FF09FE7770E9" box="[347,463,152,177]" class="Acoelomorpha" family="Dakuidae" genus="Daku" kingdom="Animalia" order="Acoela" pageId="8" pageNumber="9" phylum="Xenacoelomorpha" rank="species" species="riegeri">
<emphasis id="B94DAC31C5109660A468FF09FE7770E9" box="[347,463,152,177]" italics="true" pageId="8" pageNumber="9">D. riegeri</emphasis>
</taxonomicName>
appeared to have small spots of concentrated actin in the wall of the seminal bursa, but these spots were not visible in living specimens or histological sections, thereby suggesting the absence of a bursal nozzle.
</paragraph>
</subSubSection>
</treatment>
</document>