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<document id="AD058FB88E9E804EC7142BB8D584BB86" ID-DOI="10.11646/zootaxa.3745.2.2" ID-GBIF-Dataset="c32092a5-be17-4b13-8c8b-a7b1e7b334a8" ID-ISSN="1175-5326" ID-Zenodo-Dep="248699" ID-ZooBank="D87FBB64-5DE2-4D19-9338-6E9BE212FAEF" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460705316790" checkinUser="plazi" docAuthor="Alvim, Juliana &amp; Pimenta, Alexandre Dias" docDate="2013" docId="0387C073FFA26317FF220DB1B07A582E" docLanguage="en" docName="zt03745p198.pdf" docOrigin="Zootaxa 3745 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Thordisa diuda" docType="treatment" docVersion="7" lastPageNumber="159" masterDocId="FFBEB80BFFA16310FFB50D29B2615E19" masterDocTitle="Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species" masterLastPageNumber="198" masterPageNumber="152" pageNumber="155" updateTime="1698356988944" updateUser="plazi">
<mods:mods id="DDB5F77BE4668546F4ECFB4F77D36921" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="64F1447546F06D7EB0B109FAF98AA86E">
<mods:title id="34CA36D0AA45D1EA1B08A4513E9E3F65">Taxonomic review of the family Discodorididae (Mollusca: Gastropoda: Nudibranchia) from Brazil, with descriptions of two new species</mods:title>
</mods:titleInfo>
<mods:name id="AAA5470B419795774745C6772A8FC72F" type="personal">
<mods:role id="FD3BEB52779424FD3251FFEC5C61E1EA">
<mods:roleTerm id="244A6DE90C9392CE0AE75E8D9BB862FC">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="8F97F0F7C7F29258827F4E1EAEFAF49D">Alvim, Juliana</mods:namePart>
</mods:name>
<mods:name id="4047D00EC92EA6A9AF84F1E4A5A0B76F" type="personal">
<mods:role id="7CC86C35CC6AACCDC2ACDE301D2C5358">
<mods:roleTerm id="64C09351A5904954728D3FDFAA59F2EF">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="1FC02036CC3AA67389CD702A5B82AD24">Pimenta, Alexandre Dias</mods:namePart>
</mods:name>
<mods:typeOfResource id="3EB024B711FB5E8B757BAB553C63F30A">text</mods:typeOfResource>
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<mods:titleInfo id="3D8963BE06C23E5BFA1DDD8E2D95FBA9">
<mods:title id="EE75144C76FADBF197191AD53FE4333B">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="887789BCEFED03AD9DC861846AFAEA2C">
<mods:date id="14464CFF6B403B23AB36813899E5DA41">2013</mods:date>
<mods:detail id="FA29D6371399D175F04ED069CAA0A569" type="volume">
<mods:number id="4EE79AA67F83C6D77765542DA0D8520D">3745</mods:number>
</mods:detail>
<mods:detail id="F03B49448809FF8403D268693064CB8E" type="issue">
<mods:number id="181A859B95C466252C51413B7CCF090C">2</mods:number>
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<mods:start id="5C453DCE04203B3F822B9C7FAA4CE993">152</mods:start>
<mods:end id="BBE0AE99673E0E7096A6BE0387EA7292">198</mods:end>
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<mods:classification id="EFAB9B8FC207D5BE396CFA876641AADE">journal article</mods:classification>
<mods:identifier id="7BD62972F5A7799973BC01B8369E17FD" type="DOI">10.11646/zootaxa.3745.2.2</mods:identifier>
<mods:identifier id="FCB425DE869FD01391F223E56A8F9B71" type="GBIF-Dataset">c32092a5-be17-4b13-8c8b-a7b1e7b334a8</mods:identifier>
<mods:identifier id="4CC5C2D9C62898BF0ACDA02EDF880E6B" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="D84A87398D60E91BF5615B88FFF805DB" type="Zenodo-Dep">248699</mods:identifier>
<mods:identifier id="BCF189DD4E497DBED9C6439BD462F53F" type="ZooBank">D87FBB64-5DE2-4D19-9338-6E9BE212FAEF</mods:identifier>
</mods:mods>
<treatment id="0387C073FFA26317FF220DB1B07A582E" ID-DOI="http://doi.org/10.5281/zenodo.6146274" ID-GBIF-Taxon="119584034" ID-Zenodo-Dep="6146274" LSID="urn:lsid:plazi:treatment:0387C073FFA26317FF220DB1B07A582E" httpUri="http://treatment.plazi.org/id/0387C073FFA26317FF220DB1B07A582E" lastPageId="7" lastPageNumber="159" pageId="3" pageNumber="155">
<subSubSection id="C33422EEFFA26313FF220DB1B1EB5F2E" pageId="3" pageNumber="155" type="nomenclature">
<paragraph id="8B917165FFA26313FF220DB1B04A5EAB" blockId="3.[151,555,152,211]" box="[151,555,152,178]" pageId="3" pageNumber="155">
<heading id="D0D9C609FFA26313FF220DB1B04A5EAB" bold="true" box="[151,555,152,178]" fontSize="11" level="1" pageId="3" pageNumber="155" reason="1">
<emphasis id="B95AAD77FFA26313FF220DB1B04A5EAB" bold="true" box="[151,555,152,178]" pageId="3" pageNumber="155">
<taxonomicName id="4C2E0AE6FFA26313FF220DB1B32E5EAB" ID-CoL="9G6DZ" box="[151,335,152,178]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="155" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA26313FF220DB1B32E5EAB" bold="true" box="[151,335,152,178]" italics="true" pageId="3" pageNumber="155">Thordisa diuda</emphasis>
</taxonomicName>
Er. Marcus, 1955
</emphasis>
</heading>
</paragraph>
<paragraph id="8B917165FFA26313FF220D93B33E5ECA" blockId="3.[151,555,152,211]" box="[151,351,186,211]" pageId="3" pageNumber="155">
(
<figureCitation id="13156DE0FFA26313FF2B0D93B3675ECA" box="[158,262,186,211]" captionStart="FIGURE 1" captionStartId="4.[151,250,1844,1866]" captionTargetBox="[151,1436,215,1801]" captionTargetId="figure@4.[151,1436,215,1803]" captionTargetPageId="4" captionText="FIGURE 1. Living specimens; A, Thordisa diuda (MNRJ 13195, 9 mm), photo: V. Padula; B, Hoplodoris hansrosaorum (MNRJ 12924, 22 mm); C, Geitodoris pusae (MNRJ 11712, 12 mm); D, Discodoris branneri (MNRJ 14922, 87 mm); E, Discodoris hummelincki (MNRJ 13997, 32 mm); F, Diaulula greeleyi (MNRJ 14974, 10 mm); G, Rostanga byga (MNRJ 12371, 5 mm); H, Jorunna spazzola (MNRJ 13196, 5 mm), photo: V. Padula." httpUri="https://zenodo.org/record/248700/files/figure.png" pageId="3" pageNumber="155">Figures 1</figureCitation>
A; 3–4)
</paragraph>
<paragraph id="8B917165FFA26313FF220C2BB7FC5F01" blockId="3.[151,1437,258,2001]" box="[151,1437,258,280]" pageId="3" pageNumber="155">
<taxonomicName id="4C2E0AE6FFA26313FF220C2BB3535F01" box="[151,306,258,280]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="155" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA26313FF220C2BB3535F01" box="[151,306,258,280]" italics="true" pageId="3" pageNumber="155">Thordisa diuda</emphasis>
</taxonomicName>
Er. Marcus, 1955: 140, figs. 133–140; Ev. Marcus (1971: 943); Thompson (1980: 89, figs. 7; 10); Valdés
<emphasis id="B95AAD77FFA26313FADC0C2AB7FC5F01" box="[1385,1437,258,280]" italics="true" pageId="3" pageNumber="155">et al.</emphasis>
</paragraph>
<paragraph id="8B917165FFA26313FF720C08B1EB5F2E" blockId="3.[151,1437,258,2001]" box="[199,906,289,311]" pageId="3" pageNumber="155">
<bibRef id="528EE593FFA26313FF720C08B1EB5F2E" box="[199,906,289,311]" pageId="3" pageNumber="155" type="journal article">
(
<year id="FF863036FFA26313FF7B0C08B3665F2E" box="[206,263,289,311]" pageId="3" pageNumber="155">2006</year>
:
<part id="FF8ADBF8FFA26313FEBE0C08B3525F2E" box="[267,307,289,311]" pageId="3" pageNumber="155" type="volume">176</part>
);
<title id="F92A9A53FFA26313FEF10C08B01E5F2E" box="[324,639,289,311]" jopScore="0.0061974768" pageId="3" pageNumber="155">Debelius &amp; Kuiter (2007: 246)</title>
; Rios (2009:
<pagination id="B2E78F91FFA26313FCB20C08B14E5F2E" box="[775,815,289,311]" pageId="3" pageNumber="155" type="pagination">428</pagination>
,
<journalOrPublisher id="51EF7BA9FFA26313FC8F0C08B11E5F2E" box="[826,895,289,311]" jopScore="0.068172246" pageId="3" pageNumber="155" type="_" typeScore="34">in part</journalOrPublisher>
).
</bibRef>
</paragraph>
</subSubSection>
<subSubSection id="C33422EEFFA26313FF220C16B0745C84" pageId="3" pageNumber="155" type="materials_examined">
<paragraph id="8B917165FFA26313FF220C16B0805F41" blockId="3.[151,1437,258,2001]" box="[151,737,319,344]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF220C16B3245F41" bold="true" box="[151,325,319,344]" pageId="3" pageNumber="155">
<typeStatus id="5495CFC7FFA26313FF220C16B2B35F41" box="[151,210,319,344]" pageId="3" pageNumber="155">Type</typeStatus>
material.
</emphasis>
Probably lost. Not located in MZSP.
</paragraph>
<paragraph id="8B917165FFA26313FF720C4DB10E5F64" blockId="3.[151,1437,258,2001]" box="[199,879,356,381]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF720C4DB3045F64" bold="true" box="[199,357,356,381]" pageId="3" pageNumber="155">
<typeStatus id="5495CFC7FFA26313FF720C4DB3635F64" box="[199,258,356,381]" pageId="3" pageNumber="155">Type</typeStatus>
locality.
</emphasis>
<collectingCountry id="F33931F5FFA26313FED90C4DB3F95F64" box="[364,408,356,381]" name="Iceland" pageId="3" pageNumber="155">Ilha</collectingCountry>
de São Sebastião, São Paulo state,
<collectingCountry id="F33931F5FFA26313FC960C4DB10A5F64" box="[803,875,356,381]" name="Brazil" pageId="3" pageNumber="155">Brazil</collectingCountry>
.
</paragraph>
<paragraph id="8B917165FFA26313FF720CAEB6B25C14" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF720CAEB3D15FB9" bold="true" box="[199,432,391,416]" pageId="3" pageNumber="155">Material examined.</emphasis>
<collectingCountry id="F33931F5FFA26313FE030CAEB39E5FB9" box="[438,511,391,416]" name="Brazil" pageId="3" pageNumber="155">Brazil</collectingCountry>
: Rio de Janeiro state: Cabo Frio, Praia das Conchas: MNRJ 13194,
<date id="FF9057A5FFA26313FB590CA1B7665FB9" box="[1260,1287,392,416]" pageId="3" pageNumber="155" value="2007-10-28">28</date>
/x/2007, coll. V. Padula [1; one dissected]; MNRJ 13195,
<date id="FF9057A5FFA26313FDCB0C85B0F65FDC" box="[638,663,428,453]" pageId="3" pageNumber="155" value="2007-08-15">15</date>
/viii/2007, coll. J. Bahia [2; two dissected]; Arraial do Cabo, Praia do Forno: MNRJ 15015,
<date id="FF9057A5FFA26313FE220CE6B3975FF1" box="[407,502,463,488]" bridgedPair="/" pageId="3" pageNumber="155" value="2007-07">vii/2007</date>
, coll. J. Alvim [1]; Búzios, Praia da Tartaruga: MNRJ 15014,
<date id="FF9057A5FFA26313FB780CE6B6895FF1" box="[1229,1256,463,488]" pageId="3" pageNumber="155" value="2009-05-25">25</date>
/v/2009, coll. J. Alvim [1; one dissected]. Without locality data: MZSP 75298, Ev. Marcus det. [2; one dissected]
</paragraph>
<paragraph id="8B917165FFA26313FF720F3EB0745C84" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF720F3EB0675C29" bold="true" box="[199,518,535,560]" pageId="3" pageNumber="155">Geographical distribution.</emphasis>
<collectingCountry id="F33931F5FFA26313FDBA0F3EB0185C29" box="[527,633,535,560]" name="Bahamas" pageId="3" pageNumber="155">Bahamas</collectingCountry>
,
<collectingCountry id="F33931F5FFA26313FD330F3EB0815C29" box="[646,736,535,560]" name="Jamaica" pageId="3" pageNumber="155">Jamaica</collectingCountry>
(Valdés
<emphasis id="B95AAD77FFA26313FCF30F30B1195C29" box="[838,888,535,560]" italics="true" pageId="3" pageNumber="155">et al</emphasis>
., 2006);
<collectingCountry id="F33931F5FFA26313FC570F3EB64A5C29" box="[994,1067,535,560]" name="Brazil" pageId="3" pageNumber="155">Brazil</collectingCountry>
: Rio Grande do Norte state (Ev. Marcus, 1971); Rio de Janeiro state: Búzios (Debelius &amp; Kuiter, 2007), Praia da Tartaruga (present study); Cabo Frio, Praia das Conchas (present study); Arraial do Cabo, Praia do Forno (present study); São Paulo state:
<collectingCountry id="F33931F5FFA26313FAFB0F76B71B5C61" box="[1358,1402,607,632]" name="Iceland" pageId="3" pageNumber="155">Ilha</collectingCountry>
de São Sebastião (Er. Marcus, 1955).
</paragraph>
</subSubSection>
<subSubSection id="C33422EEFFA26313FF720F8EB09E5BC1" pageId="3" pageNumber="155" type="description">
<paragraph id="8B917165FFA26313FF720F8EB36A5A1C" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF720F8EB03E5CD9" bold="true" box="[199,607,679,704]" pageId="3" pageNumber="155">Description. External morphology</emphasis>
(
<figureCitation id="13156DE0FFA26313FDD80F8EB0B55CD9" box="[621,724,679,704]" captionStart="FIGURE 1" captionStartId="4.[151,250,1844,1866]" captionTargetBox="[151,1436,215,1801]" captionTargetId="figure@4.[151,1436,215,1803]" captionTargetPageId="4" captionText="FIGURE 1. Living specimens; A, Thordisa diuda (MNRJ 13195, 9 mm), photo: V. Padula; B, Hoplodoris hansrosaorum (MNRJ 12924, 22 mm); C, Geitodoris pusae (MNRJ 11712, 12 mm); D, Discodoris branneri (MNRJ 14922, 87 mm); E, Discodoris hummelincki (MNRJ 13997, 32 mm); F, Diaulula greeleyi (MNRJ 14974, 10 mm); G, Rostanga byga (MNRJ 12371, 5 mm); H, Jorunna spazzola (MNRJ 13196, 5 mm), photo: V. Padula." httpUri="https://zenodo.org/record/248700/files/figure.png" pageId="3" pageNumber="155">Figures 1</figureCitation>
A; 3F): body oval to elliptical, slightly depressed, up to 9.0 mm long alive, with 1.5 to 3 times greater length than width. Mantle covered by conical to rounded, simple tubercles, irregularly disposed and approximately equidistant; spicules protruding from all sides of tubercles, except from apex; tubercles larger in central part of mantle than along mantle edge or on rhinophoral and branchial sheaths. Low rhinophoral and branchial sheaths covered by tubercles. Rhinophores with 12 diagonal perfoliations and cylindrical apex. Gill with 6 retractile, unipinnate branchial leaves, arranged to form a closed circle around anal cone. Foot narrower than mantle; anterior foot border notched on upper “lip”. Oral tentacles tiny and conical. Color of living specimens uniformly yellow to orange-brown; few specimens with dark blotches on dorsum; rhinophores and branchial leaves with basal part darker than apical part (this differentiation more evident in adults); ventrally, yellowish.
</paragraph>
<paragraph id="8B917165FFA26313FF720926B73B5AA1" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF720926B3975A31" bold="true" box="[199,502,1039,1064]" pageId="3" pageNumber="155">Labial cuticle and radula</emphasis>
(
<figureCitation id="13156DE0FFA26313FDB30926B0105A31" box="[518,625,1039,1064]" captionStart="FIGURE 3" captionStartId="6.[151,250,1494,1516]" captionTargetBox="[151,1436,193,1472]" captionTargetId="figure@6.[151,1436,193,1473]" captionTargetPageId="6" captionText="FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B – C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A – E (MNRJ 13195); F (MZSP 75298)." httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="3" pageNumber="155">Figures 3</figureCitation>
A–E): Labial cuticle rigid and smooth. Radular formula
<date id="FF9057A5FFA26313FB450926B7435A31" box="[1264,1314,1039,1064]" pageId="3" pageNumber="155" value="1925-10">25 x</date>
24.0.
<quantity id="4CD6DC80FFA26313FAD40939B7FD5A31" box="[1377,1436,1039,1064]" metricMagnitude="-1" metricUnit="m" metricValue="6.096" pageId="3" pageNumber="155" unit="in" value="24.0">24 in</quantity>
preserved specimen measuring 3.0 mm in length and
<date id="FF9057A5FFA26313FCB7091DB1545A55" box="[770,821,1076,1100]" pageId="3" pageNumber="155" value="1929-10">29 x</date>
30.0.
<quantity id="4CD6DC80FFA26313FCC3091DB1D25A54" box="[886,947,1076,1101]" metricMagnitude="-1" metricUnit="m" metricValue="7.62" pageId="3" pageNumber="155" unit="in" value="30.0">30 in</quantity>
preserved specimen measuring 5.0 mm in length; lateral plates smooth and hook-shaped, larger and more developed in center of rows; lateral teeth divided in two size classes: first, smaller, comprising first to sixteenth tooth, these smaller teeth presenting one denticle at outer side of cusp; second, larger, without outer denticles. Five marginal teeth spatulate, smooth or pectinate.
</paragraph>
<paragraph id="8B917165FFA26313FF7209EDB09E5BC1" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF7209EDB3A25AC4" bold="true" box="[199,451,1220,1245]" pageId="3" pageNumber="155">Reproductive system</emphasis>
(
<figureCitation id="13156DE0FFA26313FE6009EDB05A5AC5" box="[469,571,1220,1245]" captionStart="FIGURE 4" captionStartId="7.[151,250,791,813]" captionTargetBox="[160,1424,201,767]" captionTargetId="figure@7.[159,1428,193,769]" captionTargetPageId="7" captionText="FIGURE 4. Thordisa diuda, A – B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina." httpUri="https://zenodo.org/record/248703/files/figure.png" pageId="3" pageNumber="155">Figure 4</figureCitation>
): hermaphrodite duct connecting to short and slightly convoluted ampulla. Postampullary gonoduct very short that connects to oviduct and prostate. Prostate granular, divided into two parts, less dense part proximal, denser distal part. Distal portion of vas deferens thin, about same diameter of vagina, elongated, opening in common atrium with vagina. Vagina elongated and non-convoluted, with single accessory gland attached to its base; gland not visible in small animals (3.0 mm in length;
<figureCitation id="13156DE0FFA26313FBF6087DB6EB5B75" box="[1091,1162,1364,1389]" captionStart="FIGURE 4" captionStartId="7.[151,250,791,813]" captionTargetBox="[160,1424,201,767]" captionTargetId="figure@7.[159,1428,193,769]" captionTargetPageId="7" captionText="FIGURE 4. Thordisa diuda, A – B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina." httpUri="https://zenodo.org/record/248703/files/figure.png" pageId="3" pageNumber="155">Fig. 4</figureCitation>
B). Vagina opening into rounded bursa copulatrix, completely covered by prostate and situated above female gland mass. Bursa serially arranged, vaginal duct folding twice and connecting to rounded to bean-shaped, short-stalked seminal receptacle; uterine duct short. Bursa and receptacle of similar size.
</paragraph>
</subSubSection>
<subSubSection id="C33422EEFFA26317FF7208CDB07A582E" lastPageId="7" lastPageNumber="159" pageId="3" pageNumber="155" type="discussion">
<paragraph id="8B917165FFA26313FF7208CDB0905895" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<emphasis id="B95AAD77FFA26313FF7208CDB35A5BE4" bold="true" box="[199,315,1508,1533]" pageId="3" pageNumber="155">Remarks.</emphasis>
<taxonomicName id="4C2E0AE6FFA26313FEF708CDB38F5BE4" box="[322,494,1508,1533]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="155" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA26313FEF708CDB38F5BE4" box="[322,494,1508,1533]" italics="true" pageId="3" pageNumber="155">Thordisa diuda</emphasis>
</taxonomicName>
fits perfectly in the genus
<taxonomicName id="4C2E0AE6FFA26313FCA908CDB1E15BE4" box="[796,896,1508,1533]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="155" phylum="Mollusca" rank="genus">
<emphasis id="B95AAD77FFA26313FCA908CDB1E15BE4" box="[796,896,1508,1533]" italics="true" pageId="3" pageNumber="155">Thordisa</emphasis>
</taxonomicName>
, because this species presents all the diagnostic features of the genus, including the dorsum covered with soft, elongate tubercles (
<figureCitation id="13156DE0FFA26313FBEE0B2EB6C95839" box="[1115,1192,1543,1568]" captionStart="FIGURE 1" captionStartId="4.[151,250,1844,1866]" captionTargetBox="[151,1436,215,1801]" captionTargetId="figure@4.[151,1436,215,1803]" captionTargetPageId="4" captionText="FIGURE 1. Living specimens; A, Thordisa diuda (MNRJ 13195, 9 mm), photo: V. Padula; B, Hoplodoris hansrosaorum (MNRJ 12924, 22 mm); C, Geitodoris pusae (MNRJ 11712, 12 mm); D, Discodoris branneri (MNRJ 14922, 87 mm); E, Discodoris hummelincki (MNRJ 13997, 32 mm); F, Diaulula greeleyi (MNRJ 14974, 10 mm); G, Rostanga byga (MNRJ 12371, 5 mm); H, Jorunna spazzola (MNRJ 13196, 5 mm), photo: V. Padula." httpUri="https://zenodo.org/record/248700/files/figure.png" pageId="3" pageNumber="155">Figs. 1</figureCitation>
A–3F); labial cuticle smooth; radula composed of simple, hamate teeth (
<figureCitation id="13156DE0FFA26313FD610B05B140585D" box="[724,801,1580,1605]" captionStart="FIGURE 3" captionStartId="6.[151,250,1494,1516]" captionTargetBox="[151,1436,193,1472]" captionTargetId="figure@6.[151,1436,193,1473]" captionTargetPageId="6" captionText="FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B – C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A – E (MNRJ 13195); F (MZSP 75298)." httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="3" pageNumber="155">Figs. 3</figureCitation>
A–D); outermost lateral teeth multidenticulate (
<figureCitation id="13156DE0FFA26313FA8C0B05B71A585D" box="[1337,1403,1580,1605]" captionStart="FIGURE 3" captionStartId="6.[151,250,1494,1516]" captionTargetBox="[151,1436,193,1472]" captionTargetId="figure@6.[151,1436,193,1473]" captionTargetPageId="6" captionText="FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B – C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A – E (MNRJ 13195); F (MZSP 75298)." httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="3" pageNumber="155">Fig. 3</figureCitation>
F); reproductive system with a flattened, granular prostate having two well differentiated regions (
<figureCitation id="13156DE0FFA26313FB600B66B7445871" box="[1237,1317,1615,1640]" captionStart="FIGURE 4" captionStartId="7.[151,250,791,813]" captionTargetBox="[160,1424,201,767]" captionTargetId="figure@7.[159,1428,193,769]" captionTargetPageId="7" captionText="FIGURE 4. Thordisa diuda, A – B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina." httpUri="https://zenodo.org/record/248703/files/figure.png" pageId="3" pageNumber="155">Figs. 4</figureCitation>
A–B); and there is one accessory gland (
<figureCitation id="13156DE0FFA26313FE550B5DB0435895" box="[480,546,1652,1677]" captionStart="FIGURE 4" captionStartId="7.[151,250,791,813]" captionTargetBox="[160,1424,201,767]" captionTargetId="figure@7.[159,1428,193,769]" captionTargetPageId="7" captionText="FIGURE 4. Thordisa diuda, A – B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina." httpUri="https://zenodo.org/record/248703/files/figure.png" pageId="3" pageNumber="155">Fig. 4</figureCitation>
A) (Valdés, 2002).
</paragraph>
<paragraph id="8B917165FFA26313FF720BBEB08E59C9" blockId="3.[151,1437,258,2001]" pageId="3" pageNumber="155">
<taxonomicName id="4C2E0AE6FFA26313FF720BBEB31258A9" box="[199,371,1687,1712]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="155" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA26313FF720BBEB31258A9" box="[199,371,1687,1712]" italics="true" pageId="3" pageNumber="155">Thordisa diuda</emphasis>
</taxonomicName>
was described by Er. Marcus (1955) based on a single specimen from the coast of São Paulo state,
<collectingCountry id="F33931F5FFA26313FF690B95B34258CC" box="[220,291,1724,1749]" name="Brazil" pageId="3" pageNumber="155">Brazil</collectingCountry>
, and subsequent publications expanded the known geographic distribution but did not add data on internal anatomy (Ev. Marcus, 1971; Thompson, 1980). Almost all of the major characteristics of specimens examined herein agree with the description made by Er. Marcus (1955), with the exception of the inner lateral teeth. Examining the radula of some specimens of
<taxonomicName id="4C2E0AE6FFA26313FD7F0A0EB1125959" box="[714,883,1831,1856]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="155" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA26313FD7F0A0EB1125959" box="[714,883,1831,1856]" italics="true" pageId="3" pageNumber="155">Thordisa diuda</emphasis>
</taxonomicName>
, we observed one denticle on the outer surface of the first until the sixteenth lateral teeth (
<figureCitation id="13156DE0FFA26313FDD30A65B0CB597D" box="[614,682,1868,1893]" captionStart="FIGURE 3" captionStartId="6.[151,250,1494,1516]" captionTargetBox="[151,1436,193,1472]" captionTargetId="figure@6.[151,1436,193,1473]" captionTargetPageId="6" captionText="FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B – C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A – E (MNRJ 13195); F (MZSP 75298)." httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="3" pageNumber="155">Fig. 3</figureCitation>
C). This was not mentioned by Er. Marcus (1955) and Thompson (1980), who described all the lateral teeth as smooth. The denticles might have been overlooked initially because of their diminutive size (approximately 0.75 µm) (
<figureCitation id="13156DE0FFA26313FD740ABDB16659B5" box="[705,775,1940,1965]" captionStart="FIGURE 3" captionStartId="6.[151,250,1494,1516]" captionTargetBox="[151,1436,193,1472]" captionTargetId="figure@6.[151,1436,193,1473]" captionTargetPageId="6" captionText="FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B – C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A – E (MNRJ 13195); F (MZSP 75298)." httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="3" pageNumber="155">Fig. 3</figureCitation>
C). The remaining teeth, which are larger in size, do not exhibit this denticle on the external surface (
<figureCitation id="13156DE0FFA26313FD3D0A91B0AB59C9" box="[648,714,1976,2001]" captionStart="FIGURE 3" captionStartId="6.[151,250,1494,1516]" captionTargetBox="[151,1436,193,1472]" captionTargetId="figure@6.[151,1436,193,1473]" captionTargetPageId="6" captionText="FIGURE 3. Thordisa diuda, SEM photographs of the radula and dorsum; A, half rows of radula; B – C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A – E (MNRJ 13195); F (MZSP 75298)." httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="3" pageNumber="155">Fig. 3</figureCitation>
D).
</paragraph>
<caption id="DF5121EDFFA56314FF220A1DB12F59BF" httpUri="https://zenodo.org/record/248700/files/figure.png" pageId="4" pageNumber="156" targetBox="[151,1436,215,1801]" targetPageId="4">
<paragraph id="8B917165FFA56314FF220A1DB12F59BF" blockId="4.[151,1436,1844,1959]" pageId="4" pageNumber="156">
<emphasis id="B95AAD77FFA56314FF220A1DB3705950" bold="true" box="[151,273,1844,1866]" pageId="4" pageNumber="156">FIGURE 1</emphasis>
. Living specimens; A,
<taxonomicName id="4C2E0AE6FFA56314FDB80A1DB0CD5953" box="[525,684,1844,1866]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA56314FDB80A1DB0CD5953" box="[525,684,1844,1866]" italics="true" pageId="4" pageNumber="156">Thordisa diuda</emphasis>
</taxonomicName>
(MNRJ 13195, 9mm), photo: V. Padula; B,
<taxonomicName id="4C2E0AE6FFA56314FB380A1DB7FD5953" box="[1165,1436,1844,1866]" class="Gastropoda" family="Discodorididae" genus="Hoplodoris" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="hansrosaorum">
<emphasis id="B95AAD77FFA56314FB380A1DB7FD5953" box="[1165,1436,1844,1866]" italics="true" pageId="4" pageNumber="156">Hoplodoris hansrosaorum</emphasis>
</taxonomicName>
(MNRJ 12924, 22mm); C,
<taxonomicName id="4C2E0AE6FFA56314FE740A7AB0145970" box="[449,629,1875,1897]" class="Gastropoda" family="Discodorididae" genus="Geitodoris" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="pusae">
<emphasis id="B95AAD77FFA56314FE740A7AB0145970" box="[449,629,1875,1897]" italics="true" pageId="4" pageNumber="156">Geitodoris pusae</emphasis>
</taxonomicName>
(MNRJ11712, 12mm); D,
<taxonomicName id="4C2E0AE6FFA56314FC2A0A7AB6155970" box="[927,1140,1875,1897]" class="Gastropoda" family="Discodorididae" genus="Discodoris" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="branneri">
<emphasis id="B95AAD77FFA56314FC2A0A7AB6155970" box="[927,1140,1875,1897]" italics="true" pageId="4" pageNumber="156">Discodoris branneri</emphasis>
</taxonomicName>
(MNRJ 14922, 87mm); E,
<taxonomicName id="4C2E0AE6FFA56314FF220A5BB3EC5991" box="[151,397,1906,1928]" class="Gastropoda" family="Discodorididae" genus="Discodoris" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="hummelincki">
<emphasis id="B95AAD77FFA56314FF220A5BB3EC5991" box="[151,397,1906,1928]" italics="true" pageId="4" pageNumber="156">Discodoris hummelincki</emphasis>
</taxonomicName>
(MNRJ13997, 32mm); F,
<taxonomicName id="4C2E0AE6FFA56314FD290A5BB12F5991" box="[668,846,1906,1928]" class="Gastropoda" family="Discodorididae" genus="Diaulula" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="greeleyi">
<emphasis id="B95AAD77FFA56314FD290A5BB12F5991" box="[668,846,1906,1928]" italics="true" pageId="4" pageNumber="156">Diaulula greeleyi</emphasis>
</taxonomicName>
(MNRJ 14974, 10mm); G,
<taxonomicName id="4C2E0AE6FFA56314FBD30A5AB69C5991" box="[1126,1277,1906,1928]" class="Gastropoda" family="Discodorididae" genus="Rostanga" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="byga">
<emphasis id="B95AAD77FFA56314FBD30A5AB69C5991" box="[1126,1277,1906,1928]" italics="true" pageId="4" pageNumber="156">Rostanga byga</emphasis>
</taxonomicName>
(MNRJ 12371, 5mm); H,
<taxonomicName id="4C2E0AE6FFA56314FF4A0ABBB3D059BF" box="[255,433,1936,1959]" class="Gastropoda" family="Discodorididae" genus="Jorunna" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="156" phylum="Mollusca" rank="species" species="spazzola">
<emphasis id="B95AAD77FFA56314FF4A0ABBB3D059BF" box="[255,433,1936,1959]" italics="true" pageId="4" pageNumber="156">Jorunna spazzola</emphasis>
</taxonomicName>
(MNRJ 13196, 5mm), photo: V. Padula.
</paragraph>
</caption>
<caption id="DF5121EDFFA46315FF220A31B3135993" httpUri="https://zenodo.org/record/248701/files/figure.png" pageId="5" pageNumber="157" targetBox="[151,1436,193,1779]" targetPageId="5">
<paragraph id="8B917165FFA46315FF220A31B3135993" blockId="5.[151,1436,1816,1930]" pageId="5" pageNumber="157">
<emphasis id="B95AAD77FFA46315FF220A31B36A5934" bold="true" box="[151,267,1816,1838]" pageId="5" pageNumber="157">FIGURE 2</emphasis>
. A–B,
<taxonomicName id="4C2E0AE6FFA46315FEE10A33B0755937" box="[340,532,1817,1839]" class="Gastropoda" family="Discodorididae" genus="Jorunna" kingdom="Animalia" order="Nudibranchia" pageId="5" pageNumber="157" phylum="Mollusca" rank="species" species="spongiosa" status="sp. nov.">
<emphasis id="B95AAD77FFA46315FEE10A33B0755937" box="[340,532,1817,1839]" italics="true" pageId="5" pageNumber="157">Jorunna spongiosa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A269100CFFA46315FDAF0A30B00B5937" box="[538,618,1817,1838]" pageId="5" pageNumber="157" rank="species">
<emphasis id="B95AAD77FFA46315FDAF0A30B00B5937" bold="true" box="[538,618,1817,1838]" pageId="5" pageNumber="157">sp. nov.</emphasis>
</taxonomicNameLabel>
(MNRJ13781, 14mm); A, dorsal view; B, ventral view; C,
<taxonomicName id="4C2E0AE6FFA46315FB750A31B7FD5937" box="[1216,1436,1816,1838]" class="Gastropoda" family="Discodorididae" genus="Platydoris" kingdom="Animalia" order="Nudibranchia" pageId="5" pageNumber="157" phylum="Mollusca" rank="species" species="angustipes">
<emphasis id="B95AAD77FFA46315FB750A31B7FD5937" box="[1216,1436,1816,1838]" italics="true" pageId="5" pageNumber="157">Platydoris angustipes</emphasis>
</taxonomicName>
(MNRJ 13189, 46mm), photo: V. Padula; D–F, morphotypes of
<taxonomicName id="4C2E0AE6FFA46315FC910A11B1A05954" box="[804,961,1847,1869]" class="Gastropoda" family="Discodorididae" genus="Taringa" kingdom="Animalia" order="Nudibranchia" pageId="5" pageNumber="157" phylum="Mollusca" rank="species" species="telopia">
<emphasis id="B95AAD77FFA46315FC910A11B1A05954" box="[804,961,1847,1869]" italics="true" pageId="5" pageNumber="157">Taringa telopia</emphasis>
</taxonomicName>
; D, (MNRJ 15033, 21mm); E, (MNRJ 14924, 17mm); F, (MNRJ 13184), photo: V. Padula; G–H, preserved specimen of
<taxonomicName id="4C2E0AE6FFA46315FC240A7EB6585975" box="[913,1081,1879,1900]" class="Gastropoda" family="Discodorididae" genus="Taringa" kingdom="Animalia" order="Nudibranchia" pageId="5" pageNumber="157" phylum="Mollusca" rank="species" species="iemanja" status="sp. nov.">
<emphasis id="B95AAD77FFA46315FC240A7EB6585975" box="[913,1081,1879,1900]" italics="true" pageId="5" pageNumber="157">Taringa iemanja</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A269100CFFA46315FBF50A7FB6F05972" box="[1088,1169,1878,1899]" pageId="5" pageNumber="157" rank="species">
<emphasis id="B95AAD77FFA46315FBF50A7FB6F05972" bold="true" box="[1088,1169,1878,1899]" pageId="5" pageNumber="157">sp. nov.</emphasis>
</taxonomicNameLabel>
(MNRJ 13180); E, dorsal view; F, ventral view.
</paragraph>
</caption>
<caption id="DF5121EDFFA76316FF2208FFB0695833" httpUri="https://zenodo.org/record/248702/files/figure.png" pageId="6" pageNumber="158" targetBox="[151,1436,193,1472]" targetPageId="6">
<paragraph id="8B917165FFA76316FF2208FFB0695833" blockId="6.[151,1436,1494,1578]" pageId="6" pageNumber="158">
<emphasis id="B95AAD77FFA76316FF2208FFB3745BF5" bold="true" box="[151,277,1494,1516]" pageId="6" pageNumber="158">FIGURE 3.</emphasis>
<taxonomicName id="4C2E0AE6FFA76316FEA808FFB3DB5BF5" box="[285,442,1494,1516]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA76316FEA808FFB3DB5BF5" box="[285,442,1494,1516]" italics="true" pageId="6" pageNumber="158">Thordisa diuda</emphasis>
</taxonomicName>
, SEM photographs of the radula and dorsum; A, half rows of radula; B–C, innermost teeth; B, inner side; C, outer side, denticle indicated by white arrow; D, midlateral teeth; E, marginal teeth; F, tubercle of the dorsum. A– E (MNRJ 13195); F (MZSP 75298).
</paragraph>
</caption>
<paragraph id="8B917165FFA76316FF720B78B6AA58CF" blockId="6.[151,1437,1617,2002]" pageId="6" pageNumber="158">
Chan &amp; Gosliner (2007) mentioned that
<taxonomicName id="4C2E0AE6FFA76316FD390B78B6585873" authority="Chan &amp; Gosliner, 2007" authorityName="Chan &amp; Gosliner" authorityYear="2007" box="[652,1081,1617,1642]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="oliva">
<emphasis id="B95AAD77FFA76316FD390B78B14F5873" box="[652,814,1617,1642]" italics="true" pageId="6" pageNumber="158">Thordisa oliva</emphasis>
Chan &amp; Gosliner, 2007
</taxonomicName>
appears to be sister to
<taxonomicName id="4C2E0AE6FFA76316FA8D0B78B2B65897" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA76316FA8D0B78B2B65897" italics="true" pageId="6" pageNumber="158">Thordisa diuda</emphasis>
</taxonomicName>
because these two species share a unique apomorphy of having a pair of circular pits on the sides of the mouth. Thus, we would like to emphasize that the round button on a disc beside the mouth, as described by Er. Marcus (1955) and Chan &amp; Gosliner (2007) were found in the specimens analyzed in this study.
</paragraph>
<paragraph id="8B917165FFA76316FF720BC8B16959CB" blockId="6.[151,1437,1617,2002]" pageId="6" pageNumber="158">
<taxonomicName id="4C2E0AE6FFA76316FF720BC8B09558E3" authority="Cervera &amp; Garcia-Gomes, 1989" authorityName="Cervera &amp; Garcia-Gomes" authorityYear="1989" box="[199,756,1761,1786]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="azmani">
<emphasis id="B95AAD77FFA76316FF720BC8B3E558E0" box="[199,388,1761,1786]" italics="true" pageId="6" pageNumber="158">Thordisa azmani</emphasis>
Cervera &amp; García-Gomes, 1989
</taxonomicName>
from the Iberian Peninsula was distinguished from
<taxonomicName id="4C2E0AE6FFA76316FAF50BCBB7FD58E3" box="[1344,1436,1761,1786]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA76316FAF50BCBB7FD58E3" box="[1344,1436,1761,1786]" italics="true" pageId="6" pageNumber="158">T. diuda</emphasis>
</taxonomicName>
by the presence of two accessory glands at the base of the vagina, in contrast to
<taxonomicName id="4C2E0AE6FFA76316FBE70A2FB6D05907" box="[1106,1201,1797,1822]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA76316FBE70A2FB6D05907" box="[1106,1201,1797,1822]" italics="true" pageId="6" pageNumber="158">T. diuda</emphasis>
</taxonomicName>
, which has a single accessory gland (Er. Marcus, 1955). According to Ortea and Martínez (1990), who proposed synonymy between
<taxonomicName id="4C2E0AE6FFA76316FA320A03B2B6597F" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA76316FA320A03B2B6597F" italics="true" pageId="6" pageNumber="158">T. diuda</emphasis>
</taxonomicName>
and
<taxonomicName id="4C2E0AE6FFA76316FEBB0A67B31A597C" box="[270,379,1870,1893]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="azmani">
<emphasis id="B95AAD77FFA76316FEBB0A67B31A597C" box="[270,379,1870,1893]" italics="true" pageId="6" pageNumber="158">T. azmani</emphasis>
</taxonomicName>
, the single gland described by Er. Marcus (1955) was a misinterpretation. Ortea and Martínez (1990) suggested that the two glands appear united, giving the impression of being a single bilobed gland. Ortea and Cabrera (1999) reported the identification of
<taxonomicName id="4C2E0AE6FFA76316FD7D0ABFB14559B7" box="[712,804,1941,1966]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="6" pageNumber="158" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA76316FD7D0ABFB14559B7" box="[712,804,1941,1966]" italics="true" pageId="6" pageNumber="158">T. diuda</emphasis>
</taxonomicName>
in
<collectingCountry id="F33931F5FFA76316FCFF0ABFB1B159B7" box="[842,976,1941,1966]" name="Cape Verde" pageId="6" pageNumber="158">Cape Verde</collectingCountry>
, based on the presence of two accessory glands near the vagina of the specimens they examined.
</paragraph>
<caption id="DF5121EDFFA66317FF220E3EB18C5D73" httpUri="https://zenodo.org/record/248703/files/figure.png" pageId="7" pageNumber="159" targetBox="[160,1424,201,767]" targetPageId="7">
<paragraph id="8B917165FFA66317FF220E3EB18C5D73" blockId="7.[151,1436,791,874]" pageId="7" pageNumber="159">
<emphasis id="B95AAD77FFA66317FF220E3EB3775D35" bold="true" box="[151,278,791,813]" pageId="7" pageNumber="159">FIGURE 4.</emphasis>
<taxonomicName id="4C2E0AE6FFA66317FE950E3EB3DF5D34" box="[288,446,791,813]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FE950E3EB3DF5D34" box="[288,446,791,813]" italics="true" pageId="7" pageNumber="159">Thordisa diuda</emphasis>
</taxonomicName>
, A–B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina.
</paragraph>
</caption>
<paragraph id="8B917165FFA66317FF720EBFB3D05A9E" blockId="7.[151,1436,918,1591]" pageId="7" pageNumber="159">
The two sexually mature specimens dissected here are consistent with the description by Er. Marcus (1955) in having only one non-bilobed accessory gland near the vaginal opening (
<figureCitation id="13156DE0FFA66317FC540E92B6465DCA" box="[993,1063,955,980]" captionStart="FIGURE 4" captionStartId="7.[151,250,791,813]" captionTargetBox="[160,1424,201,767]" captionTargetId="figure@7.[159,1428,193,769]" captionTargetPageId="7" captionText="FIGURE 4. Thordisa diuda, A – B, general view of reproductive system; A (MZSP 75298); B, Juvenile (3 mm in length) (MNRJ 13195). Abbreviations: am, ampulla; ag, accessory gland; bc, bursa copulatrix; dd, deferent duct; f, female glands; go, gonopore; ov, oviduct; pr, prostate; s, seminal receptacle; u, uterine duct; va, vagina." httpUri="https://zenodo.org/record/248703/files/figure.png" pageId="7" pageNumber="159">Fig. 4</figureCitation>
A). Furthermore, there are other differences between
<taxonomicName id="4C2E0AE6FFA66317FE350EC9B3BD5DEE" box="[384,476,990,1015]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FE350EC9B3BD5DEE" box="[384,476,990,1015]" italics="true" pageId="7" pageNumber="159">T. diuda</emphasis>
</taxonomicName>
and
<taxonomicName id="4C2E0AE6FFA66317FDA10EC9B0E15DEE" box="[532,640,992,1015]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="azmani">
<emphasis id="B95AAD77FFA66317FDA10EC9B0E15DEE" box="[532,640,992,1015]" italics="true" pageId="7" pageNumber="159">T. azmani</emphasis>
</taxonomicName>
, for example in the number and color of branchial leaves, presence or absence of the denticle on the outer surface of the smaller class of lateral teeth, and rhinophoral and branchial coloration. Thus, we consider that
<taxonomicName id="4C2E0AE6FFA66317FDA90901B0195A26" box="[540,632,1062,1087]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FDA90901B0195A26" box="[540,632,1062,1087]" italics="true" pageId="7" pageNumber="159">T. diuda</emphasis>
</taxonomicName>
occurs in
<collectingCountry id="F33931F5FFA66317FD59090FB1525A26" box="[748,819,1062,1087]" name="Brazil" pageId="7" pageNumber="159">Brazil</collectingCountry>
,
<collectingCountry id="F33931F5FFA66317FC8A090FB1C85A26" box="[831,937,1062,1087]" name="Bahamas" pageId="7" pageNumber="159">Bahamas</collectingCountry>
, and
<collectingCountry id="F33931F5FFA66317FC51090FB65F5A26" box="[996,1086,1062,1087]" name="Jamaica" pageId="7" pageNumber="159">Jamaica</collectingCountry>
(Valdés
<emphasis id="B95AAD77FFA66317FB140901B6B35A26" box="[1185,1234,1062,1087]" italics="true" pageId="7" pageNumber="159">et al</emphasis>
. 2006), but not in northern
<collectingCountry id="F33931F5FFA66317FF4A0962B35E5A7D" box="[255,319,1099,1124]" name="Spain" pageId="7" pageNumber="159">Spain</collectingCountry>
(Ortea &amp; Martínez, 1990), Iberian Peninsula (Cervera &amp; García-Gomez, 1989), and
<collectingCountry id="F33931F5FFA66317FAA20962B7FA5A7D" box="[1303,1435,1099,1124]" name="Cape Verde" pageId="7" pageNumber="159">Cape Verde</collectingCountry>
(Ortea &amp; Cabrera, 1999).
</paragraph>
<paragraph id="8B917165FFA66317FF7209BAB07A582E" blockId="7.[151,1436,918,1591]" pageId="7" pageNumber="159">
<taxonomicName id="4C2E0AE6FFA66317FF7209BAB30D5AB5" box="[199,364,1171,1196]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="lurca">
<emphasis id="B95AAD77FFA66317FF7209BAB30D5AB5" box="[199,364,1171,1196]" italics="true" pageId="7" pageNumber="159">Thordisa lurca</emphasis>
</taxonomicName>
(Ev. Marcus &amp; Er. Marcus, 1967b), originally described in the genus
<taxonomicName id="4C2E0AE6FFA66317FBC009BDB6AB5AB2" box="[1141,1226,1172,1195]" class="Gastropoda" family="Discodorididae" genus="Nuvuca" higherTaxonomySource="GBIF" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="genus">
<emphasis id="B95AAD77FFA66317FBC009BDB6AB5AB2" box="[1141,1226,1172,1195]" italics="true" pageId="7" pageNumber="159">Nuvuca</emphasis>
</taxonomicName>
(Ev. Marcus &amp; Er. Marcus, 1967b), was recorded from
<collectingCountry id="F33931F5FFA66317FD98099FB0105AD6" box="[557,625,1206,1231]" name="Brazil" pageId="7" pageNumber="159">Brazil</collectingCountry>
by Valdés
<emphasis id="B95AAD77FFA66317FD590991B1425AD6" box="[748,803,1206,1231]" italics="true" pageId="7" pageNumber="159">et al.</emphasis>
(2006) without specifying the exact location in
<collectingCountry id="F33931F5FFA66317FA8F099FB71F5AD6" box="[1338,1406,1206,1231]" name="Brazil" pageId="7" pageNumber="159">Brazil</collectingCountry>
or state in which collection this specimen was deposited. Thus, it is impossible compare with this material.
<taxonomicName id="4C2E0AE6FFA66317FA8D09F2B2B35B0E" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="lurca">
<emphasis id="B95AAD77FFA66317FA8D09F2B2B35B0E" italics="true" pageId="7" pageNumber="159">Thordisa lurca</emphasis>
</taxonomicName>
only was described in its original description and according to that some different features to separate these two species were found. First, Ev. Marcus and Er. Marcus (1967b) do not metion the existence of a round button beside the mouth in
<taxonomicName id="4C2E0AE6FFA66317FECC0861B3AD5B46" box="[377,460,1350,1375]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="lurca">
<emphasis id="B95AAD77FFA66317FECC0861B3AD5B46" box="[377,460,1350,1375]" italics="true" pageId="7" pageNumber="159">T. lurca</emphasis>
</taxonomicName>
, that it is present in
<taxonomicName id="4C2E0AE6FFA66317FD040861B16D5B46" box="[689,780,1350,1375]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FD040861B16D5B46" box="[689,780,1350,1375]" italics="true" pageId="7" pageNumber="159">T. diuda</emphasis>
</taxonomicName>
;
<taxonomicName id="4C2E0AE6FFA66317FCAE0861B1115B46" box="[795,880,1350,1375]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="lurca">
<emphasis id="B95AAD77FFA66317FCAE0861B1115B46" box="[795,880,1350,1375]" italics="true" pageId="7" pageNumber="159">T. lurca</emphasis>
</taxonomicName>
presents the tubercles of the notum with different sizes, larger and smaller ones mixed, while
<taxonomicName id="4C2E0AE6FFA66317FD310845B0815B9D" box="[644,736,1387,1412]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FD310845B0815B9D" box="[644,736,1387,1412]" italics="true" pageId="7" pageNumber="159">T. diuda</emphasis>
</taxonomicName>
presents tubercles larger in the central part of the mantle than along the mantle edge or on rhinophoral and branchial sheaths;
<taxonomicName id="4C2E0AE6FFA66317FCD708B9B1D45BBE" box="[866,949,1422,1447]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="lurca">
<emphasis id="B95AAD77FFA66317FCD708B9B1D45BBE" box="[866,949,1422,1447]" italics="true" pageId="7" pageNumber="159">T. lurca</emphasis>
</taxonomicName>
has the anterior border of the foot grooved and entire, not notched, while in
<taxonomicName id="4C2E0AE6FFA66317FDA5089DB00D5BD5" box="[528,620,1459,1484]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FDA5089DB00D5BD5" box="[528,620,1459,1484]" italics="true" pageId="7" pageNumber="159">T. diuda</emphasis>
</taxonomicName>
it is notched on the upper “lip”;
<taxonomicName id="4C2E0AE6FFA66317FC52089DB65F5BD5" box="[999,1086,1459,1484]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="lurca">
<emphasis id="B95AAD77FFA66317FC52089DB65F5BD5" box="[999,1086,1459,1484]" italics="true" pageId="7" pageNumber="159">T. lurca</emphasis>
</taxonomicName>
presents the inner lateral teeth smooth, while
<taxonomicName id="4C2E0AE6FFA66317FEF108F1B3C55BF6" box="[324,420,1494,1519]" class="Gastropoda" family="Discodorididae" genus="Thordisa" kingdom="Animalia" order="Nudibranchia" pageId="7" pageNumber="159" phylum="Mollusca" rank="species" species="diuda">
<emphasis id="B95AAD77FFA66317FEF108F1B3C55BF6" box="[324,420,1494,1519]" italics="true" pageId="7" pageNumber="159">T. diuda</emphasis>
</taxonomicName>
presents the lateral teeth divided in two size classes: first, smaller, comprising first to sixteenth tooth, these smaller teeth presenting one denticle at the outer side of the cusp, while the second class of size is larger and teeth are smooth.
</paragraph>
</subSubSection>
</treatment>
</document>
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