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<document id="AB371B1E63F2A133A19A5C6FE66B8462" ENCODING="UTF-8" ID-GBIF-Dataset="a3e8c76c-0e3e-4d18-a540-e46ca2fc8c8c" ModsDocAuthor="Pettibone, M.H." ModsDocDate="1970" ModsDocID="SCTZ-0052" ModsDocOrigin="http://si-pddr.si.edu/jspui/handle/10088/6313" ModsDocTitle="Revision of the genus Euthalenessa Darboux (Polychaeta: Sigalionidae)" checkinTime="1309440623833" checkinUser="donat" docAuthor="Pettibone, M. H." docDate="1970" docId="C23978055140AA1FEAA8CA2229886EB3" docLanguage="en" docName="SCTZ-0052.htmGSda.xml" docOrigin="Smithsonian Contribution to Zoology 52" docSource="http://si-pddr.si.edu/jspui/handle/10088/6313" docTitle="Euthalenessa digitata" docType="treatment" docVersion="9" lastPageNumber="22" masterDocId="42BEA33E87993786EE7CDD070AB059AA" masterDocTitle="Revision of the genus Euthalenessa Darboux (Polychaeta: Sigalionidae)" pageNumber="18" updateTime="1701313688671" updateUser="plazi">
<mods:mods id="3D3E75AEDCD6354C6EF938F35D979ECC" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="CE10F815D8CA314AB51123A9958C0D96">
<mods:title id="DE91CC46725BB33FC4A5B26378540449">Revision of the genus Euthalenessa Darboux (Polychaeta: Sigalionidae)</mods:title>
</mods:titleInfo>
<mods:name id="CF11949308847E9C0D79D13CF3BEB475" type="personal">
<mods:role id="D0831F1A9E4CAA5E6EC93240841D7FB2">
<mods:roleTerm id="256329328591E7AC979FDA4C7B2B9210">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="82A0C41AAD9BDC3ED841E71C21C87C04">Pettibone, M. H.</mods:namePart>
</mods:name>
<mods:typeOfResource id="74E20B8CBC175D3ADE607DA8456D8802">text</mods:typeOfResource>
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<mods:titleInfo id="AA06F4E6992A1A0E0FC126F5EEA1363A">
<mods:title id="DDAAF5A197358A584326AC91F9732F77">Smithsonian Contribution to Zoology</mods:title>
</mods:titleInfo>
<mods:part id="27D48C92BDB3279BB0461CB99A5236D7">
<mods:date id="53B9633D156F14A032DE6A28A28102DE">1970</mods:date>
<mods:detail id="90D18B016DF38C71158C1E6B5B5B4D1B" type="volume">
<mods:number id="A860D0917A3099EB89F6AC0EEB7968E0">52</mods:number>
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<mods:location id="F3FA0A8BAEAF41870130D7707F977470">
<mods:url id="57ABB4FE30568D31E0469AA434607832">http://si-pddr.si.edu/jspui/handle/10088/6313</mods:url>
</mods:location>
<mods:classification id="66BDDAEE40FB4B59F4EB4C078088FC84">journal volume</mods:classification>
<mods:identifier id="0648A6173D469B7ABEA35A70A8D13C4F" type="Plazi-Custom">SCTZ-0052</mods:identifier>
</mods:mods>
<treatment id="C23978055140AA1FEAA8CA2229886EB3" ID-DOI="http://doi.org/10.5281/zenodo.6284747" ID-GBIF-Taxon="100114525" ID-Zenodo-Dep="6284747" LSID="urn:lsid:plazi:treatment:C23978055140AA1FEAA8CA2229886EB3" httpUri="http://treatment.plazi.org/id/C23978055140AA1FEAA8CA2229886EB3" lastPageNumber="22" pageNumber="18">
<subSubSection id="0E4E550FAE6E7ADA00547FC55D7A6037" type="nomenclature">
<paragraph id="6DAAB05AD798E76221D165BA9E1ED292" pageId="21" pageNumber="18">
<taxonomicName id="66CB5DF36373D078DFC8095E850A52BC" ID-CoL="6HJDS" class="Polychaeta" family="Sigalionidae" genus="Euthalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="digitata">Euthalenessa digitata (Mcintosh)</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="EC408335968137C1D789086E4019BBB5" type="description">
<paragraph id="D71F6DDF14D8F10C203267166F0214EB" pageId="21" pageNumber="18">Figures 12, 13</paragraph>
</subSubSection>
<subSubSection id="2B1F875CD3CB701E91FCC6C6D95619A8" type="reference_group">
<paragraph id="D554FD5F0C7DDBFEB8AE36C2DDE2B280" pageId="21" pageNumber="18">
<taxonomicName id="D695F8B43051D0C6822C9785BC72E9C6" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="digitata">Thalenessa digitata Mcintosh</taxonomicName>
, 1885, p. 140, pi. 22: fig. 2, pi. 23: figs. 5-7, pi. 13A: figs. 7-10, pi. 32A: fig. 9.-[?] Willey, 1905, p. 260, pi. 2: figs. 50-52.-[Not Hartman, 1966, p. 178.]
</paragraph>
<paragraph id="0A807B63204378FAFA32C9D71AFB2400" pageId="21" pageNumber="18">
<taxonomicName id="FC223F0D2822E75FA43022B76728A568" class="Polychaeta" family="Sigalionidae" genus="Euthalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="digitata">Euthalenessa digitata</taxonomicName>
.-Daifooux, 1900, p. 116.-[Not Augener, 1927, p. 124.-Not Knox, 1960, p. 97.]
</paragraph>
<paragraph id="79482C947EAFDA5E4449DCFDF54EAD66" pageId="21" pageNumber="18">
<taxonomicName id="D57345FE4B9F51DE287981C8FDBAB11A" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="djiboutiensis">Thalenessa djiboutiensis Gravier</taxonomicName>
, 1901, p. 231, pi. 7: figs. 114-117, text-figs. 240-248.
</paragraph>
<paragraph id="0D651BA57485A0B142DA80A7D9737DDB" pageId="21" pageNumber="18">
[?]
<taxonomicName id="3C6825ABB19CE277A61370921F4E4CCB" class="Polychaeta" family="Sigalionidae" genus="Thalanessa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phyllodocida" phylum="Annelida" rank="species" species="digitata">Thalanessa [sic] digitata</taxonomicName>
.-Potts, 1910, p. 351.
</paragraph>
<paragraph id="14229AA6AB73FF1134E6B29C82761061" pageId="21" pageNumber="18">
<taxonomicName id="48199CA22284A48E95E66F70934E8500" class="Polychaeta" family="Sigalionidae" genus="Euthalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="djiboutiensis">Euthalenessa djiboutiensis</taxonomicName>
.-Fauvel, 1918, p. 331.-Wesenberg-Lund, 1949, p. 258.
</paragraph>
<paragraph id="1DDDD55461ABE0A6BC4D2890C3BCCD8C" pageId="21" pageNumber="18">
Not
<taxonomicName id="92CFDAA47C7D42AC96FA56534FD2A506" class="Polychaeta" family="Sigalionidae" genus="Euthalanessa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Phyllodocida" phylum="Annelida" rank="species" species="djiboutiensis">Euthalanessa [sic] djiboutiensis</taxonomicName>
.-Monro, 1937, p. 264.
</paragraph>
</subSubSection>
<subSubSection id="C88FF46B1A8BAF15B68FCBB2EBE56E2E" type="materials_examined">
<paragraph id="A90F1C7ED0844D6FFBB8D8CF58FBAA24" pageId="21" pageNumber="18">
<materialsCitation id="3185C2D7E1C9890D477BB8DEBCDCC9CF" ID-GBIF-Occurrence="923901609" collectingDate="1875-03" collectionCode="BMNH" collectorName="Challenger Expedition" country="United States Of America" location="Off Admiralty Islands, western Pacific" specimenCode="BMNH 1885: 12: 1: 109 a" typeStatus="holotype">
Material examined.-
<location id="06BB42418FD1269FA5045F589E23EDCA" LSID="urn:lsid:plazi:treatment:C23978055140AA1FEAA8CA2229886EB3:06BB42418FD1269FA5045F589E23EDCA" country="United States Of America" name="Off Admiralty Islands, western Pacific">Off Admiralty Islands, western Pacific</location>
, 29-45 meters,
<collectorName id="A6D449CB998ED273EEECB3A3869EF8E5">Challenger Expedition</collectorName>
,
<date id="28D11B9837D0308B8D73D600DF82313A" value="1875-03">
<collectingDate id="F57B1844316203A168E38ABF4C0F170F" value="1875-03">March 1875</collectingDate>
</date>
-
<typeStatus id="DFCFA35A2C17E8E8B4DE5166B99A8C6D">holotype</typeStatus>
of
<taxonomicName id="F34951FB483C39F09E8E654240AB9F0F" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="digitata">Thalenessa digitata</taxonomicName>
(
<specimenCode id="5D5F516C9A1AD3BB581FD600D0635521">BMNH1885: 12: 1: 109a</specimenCode>
)
</materialsCitation>
.
</paragraph>
<paragraph id="219798D7B896E37A202A7B30F95537CC" pageId="21" pageNumber="18">
<materialsCitation id="E7BF10D5DC800A2C19CC8D8C7E2AD018" ID-GBIF-Occurrence="923901606" collectorName="H. Coutiere" country="Djibouti" location="Red Sea" typeStatus="syntypes">
<collectingCountry id="CFF93E177426A373FD478E8F93890B2A">Djibouti</collectingCountry>
,
<location id="0CF9D4E459C9C94C7585F6CDAD14923F" LSID="urn:lsid:plazi:treatment:C23978055140AA1FEAA8CA2229886EB3:0CF9D4E459C9C94C7585F6CDAD14923F" country="Djibouti" name="Red Sea">Red Sea</location>
,
<collectorName id="CE0A2EC7D6673D2C58E26F27E13C9ADD">
H.
<normalizedToken id="DAB63EB66E553F2BF74FFC1E13C7659A" originalValue="Coutière" pageId="21" pageNumber="18">Coutiere</normalizedToken>
</collectorName>
, collector, 1897-2
<typeStatus id="DA52007374E7E261BE869E99EBF16D1A">syntypes</typeStatus>
of
<taxonomicName id="DE623E0266CD3A6C0941788DD33F8CCE" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="djiboutiensis">Thalenessa djiboutiensis</taxonomicName>
(MNHNP)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="9EA1D8463D7C148B3FBC6358F0D5C58F" type="description">
<paragraph id="F6AAC0D2ED8388CFCD1319D64B47F98B" pageId="21" pageNumber="18">
Type-material.-The
<typeStatus id="064C86B1E5FD4E1A2E409D5ED1122AF0">holotype</typeStatus>
of
<taxonomicName id="B073709D2808F21AEF6B79C5642D27BA" class="Gastropoda" family="Muricidae" genus="Thalessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Neogastropoda" pageId="21" pageNumber="18" phylum="Mollusca" rank="species" species="digitata">Thalessa digitata</taxonomicName>
, now in 4 pieces, has a total length of about 126 mm, width, including setae, 6 mm, and about 160 segments (Figure 12). It is a female, filled
<normalizedToken id="C9E77C6C4077D1084421FDECCB8E5723" originalValue="widî" pageId="21" pageNumber="18">widi</normalizedToken>
eggs posteriorly.
</paragraph>
<paragraph id="AAB60644EFA65D98FC579A92DAD201A0" pageId="21" pageNumber="18">
The 2
<typeStatus id="485313FDEF5A9E46CBF1B93B2E9C56F5">syntypes</typeStatus>
of
<taxonomicName id="BBD6A3166EE90D4F8396D2AC602AFFAC" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="djiboutiensis">Thalenessa djiboutiensis</taxonomicName>
are incomplete; the larger
<typeStatus id="35236FBABF1B186867711BE5B795BB7C">syntype</typeStatus>
, with the pharynx fully extended, has a length of 56 mm, width of 6 mm, including setae, and about 100 segments; the smaller
<typeStatus id="ED69B8133C7E513D9A01249A90CC9312">syntype</typeStatus>
is about 40 mm long, width of 4 mm, including setae, and 64 segments (Figure 13).
</paragraph>
</subSubSection>
<subSubSection id="11994DB4ABF736EC69A9BED41B483E33" type="description">
<paragraph id="1976400C96C33C98A089FF062C8AC762" pageId="21" pageNumber="18">Description.-The body is colorless. The elytra change in size and shape along the body. At first they are small and oval, then larger, subrectangular, subreniform to subcordiform, with deep anterior notches (Figures 12/-n; 13 a, h-j). The 1st pair of elytra lack papillae. The anterior elytra have fringes of papillae extending along most of their lateral borders, with 11-15 papillae; more posteriorly, the papillae are confined to the anterior halves of the lateral borders, with 12 to 8 papillae. The papillae have 1 to 3 filaments per papilla (up to 4, according to Mcintosh; up to 5, according to Gravier).</paragraph>
<paragraph id="7C6DCBA2CA33E59A5F79D01BD77EE783" pageId="21" pageNumber="18">
The pharynx has 11 pairs of papillae and 2 pairs of amber-colored jaws; subterminally a pair of diagonal muscular masses are found both dorsally and ventrally (
<typeStatus id="C54FB77D2EDBDE565A3885CA884C1364">syntype</typeStatus>
of
<taxonomicName id="A70F8A5110B7D0903C41BE0E39D476D7" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" genus.bestMatchDistance="666" genus.bestMatchVote="2" genus.innerRound="1" genus.outerRound="1" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="21" pageNumber="18" phylum="Annelida" rank="species" species="djiboutiensis">T. djiboutiensis</taxonomicName>
).
</paragraph>
<paragraph id="A82F805285CC27304B8EAC02D7AC9173" lastPageId="23" lastPageNumber="20" pageId="21" pageNumber="18">
The fused prostomium and tentacular segment are withdrawn within die anterior few setigers (Figures 12a, b; 13a). The 2 pairs of eyes are moderately large, located on the anterior slightly raised oval area of the prostomium, the anterior pair being larger than the posterior pair; the posterior half of the prostomium is covered dorsally by the anterior segments. The ceratophore of the median antenna extends from a wider
<pageBreakToken id="57300881555FFC8659762B0D1E4B4628" pageId="23" pageNumber="20" start="start">median</pageBreakToken>
area between the anterior pair of eyes, narrowing more distally where it is fused to the dorsal bases of the fused tentacular parapodia. The ceratophores of the lateral antennae are short and also fused to die dorsal sides of die tentacular parapodia; they extend to about the same level as the median ceratophore; the 3 free antenna! styles are subequal in size, short, and subulate. The long palps extend posteriorly to setigers 11 to 16. The dorsal tentacular cirri are short and tapered; the ventral tentacular cirri are twice as long as the dorsal. The inner dorsal tentacular ridges are found on the distal diree-fourths of the tentacular lobes; setae are few or absent. The bulbous facial tubercle is visible ventrally medial to the inner palpal sheaths or anterior to die fused tentacular parapodia when die pharynx is extended; 3-A pairs of labial ctenidia are present on die lateral lips (Figures 126; 13a).
</paragraph>
<paragraph id="F301A3EC5A12FEBB8B2058C43E350567" pageId="23" pageNumber="20">
The parapodia of setigers 2-5 are greatly modified, with well-developed notopodial and neuropodial bracts (Figures
<date id="2F15DEDA53DFD28DAF7C77FB60A1BB8A">I2</date>
b-e;
<date id="B1A15549BE0D865E6DFA92BAA8D506B2">I3</date>
b-c). The anterior and posterior notopodial bracts encircle die compact bundles of notosetae; tfiey are variously slashed, widi 4-5 anterior and 6-9 posterior stylodes. The neuropodial bracts consist of die following: (/) lower-anterior-ventral bracts, greatly enlarged and flaring; tiiey are largest on setigers 2 and 3, becoming shorter on setigers 4 and 5; tiiey have 2-4 papillae or stylodes on dieir upper distal borders and 0-1 stylodes on their lower distal borders; (2) upper-anterior bracts, shorter and wider; dieir lower distal parts form distinct rounded lobes or digitiform ligules, directed inward; (3) lower-posterior bracts, oval, with 2-4 distal papillae or stylodes; and (4) upper-posterior bracts formed of 8-10 digitiform stylodes. In die following transitional setigers, die lower-anterior and upper-anterior bracts become shorter and truncate, widi a notch between; die lower digitiform ligules of die upper-anterior bracts are prominent; die lower-posterior bracts become shorter, oval, lacking stylodes; die upper-posterior stylodes are fewer in number - 4-5 upper and 2 larger lower ones on setiger 6 (Figure 12/). By setiger 8 (
<typeStatus id="F422CE8E14846D2924241CC2DA386432">holotype</typeStatus>
of T,
<taxonomicName id="AAB205A31B666560FA91BE93FDADD92E" class="Gastropoda" family="Muricidae" genus="Thalessa" genus.completionEvidence="missing, matching species" genus.innerRound="1" genus.outerRound="1" higherTaxonomySource="CoL" kingdom="Animalia" order="Neogastropoda" pageId="23" pageNumber="20" phylum="Mollusca" rank="species" species="digitata">digitata</taxonomicName>
) or setiger 15 (
<typeStatus id="27A919288D08F853A2B2E440B4F095FC">syntype</typeStatus>
of
<taxonomicName id="C0B4F3CBECCF45381D9BEACD648EAEF8" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" genus.bestMatchDistance="637" genus.bestMatchVote="2" genus.innerRound="1" genus.outerRound="1" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="23" pageNumber="20" phylum="Annelida" rank="species" species="djiboutiensis">T. djiboutiensis</taxonomicName>
), die stylodes have disappeared and die posterior bract is continuous. The long, slender, compound neurosetae of die anterior setigers have multiarticulate blades widi 6-10 articles; some of die neurosetae are stouter, widi short blades; die stems are smooth or have few spinous rows (Figures 12d; 13c). The dorsal cirri on setiger 3 are short, subulate, borne on short cirrophores
</paragraph>
<paragraph id="39BBD6FB2EA2B28F08F2BC8B62983CAF" pageId="23" pageNumber="20">(Figures 12c; 136). Small ctenidia encircle die elytriphores of setiger 2 and die dorsal cirri of setiger 3.</paragraph>
<paragraph id="484410D1F1EF5B08E0629B49D11749A5" pageId="23" pageNumber="20">
The branchiae begin on setigers 4-6. The parapodial ctenidia are large, cup-shaped, 3 per parapodium. The parapodia of die anterior segments have small clubshaped notopodia and larger neuropodia (Figures \2g-i;
<date id="57D39505B94CC94FC828F037143DD67A">I3</date>
d,e). The notopodial bracts have 1-3 posterior and 2-3 anterior stylodes. The notosetae form radier small bundles; they are slender, spinous, tapering to capillary tips. The neuropodial acicular lobes are enclosed in anterior and posterior bracts. The C-shaped posterior bracts are subtriangular and enclose die C-shaped row of neurosetae. The smaller lower-anterior bracts are truncate and enclose die lower diagonal row of neurosetae. The larger upper-anterior bracts are rounded, widi prominent digitiform lobes or ligules on dieir lower borders; die upper borders of die bracts curve around die upper diagonal row of neurosetae. The compound neurosetae are stout; the distal tips of die enlarged stems have few faint spinous rows; die blades are all radier short, widi bifid hooked tips (Figures
<date id="6B6A03DE8082B38778E09C0FB39766C6">12i</date>
; 13e). The ventral cirri are slender, tapering, extending to die distal tips of die neuropodia.
</paragraph>
<paragraph id="E5BF72DC803B7FFD052F134970ED6491" lastPageId="26" lastPageNumber="23" pageId="23" pageNumber="20">
The parapodia of die middle and posterior regions of die body differ in some respects (Figures 12;, k; 13/, g). The notopodia are similar, having a single posterior and 2-3 anterior stylodes. The neuropodia show marked changes, however. The posterior bracts are more elongate and diagonally truncate. The upper-anterior bracts are smaller and more or less fused widi die acicular lobes in die areas where die neurosetae are lacking; die lower ligules are conspicuous, appearing as oval lobes below die tips of die acicular lobes. The neurosetae are similar to die anterior neurosetae, die upper and lower ones having slightly longer blades (Figures \2k; 13g). The ventral cirri may be somewhat
<pageBreakToken id="4A5E6EB7881F7A5CD3908FBBC6074F88" pageId="26" pageNumber="23" start="start">longer</pageBreakToken>
, extending beyond the distal tips of the neuropodia.
</paragraph>
</subSubSection>
<subSubSection id="3483D879EFCC310500582BA2F12EAB0B" type="multiple">
<caption id="30DE54608E702AB1E7B9D28BE945A904" pageId="26" pageNumber="23">
<paragraph id="541FC8BB4D84245D5E3629F8B4E2D0DA" pageId="26" pageNumber="23">
Figure 12.-
<taxonomicName id="17576D2A72F85537D4ADFC9B85511D79" class="Polychaeta" family="Sigalionidae" genus="Euthalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="26" pageNumber="23" phylum="Annelida" rank="species" species="digitata">Euthalenessa digitata</taxonomicName>
(
<typeStatus id="DE176431DE354F2BEC98EE449D7C6650">holotype</typeStatus>
of
<taxonomicName id="47FC500D1549C90FE090204FD3F8FE6E" genus="Thaleiussa" pageId="26" pageNumber="23" rank="species" species="digitata">Thaleiussa digitata</taxonomicName>
,
<collectionCode id="7C0DC7E93F5B1DE8BA813B3A3D0D14E0" collectionName="United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]">BMNH</collectionCode>
1885: 12: 1: 109a): a, Prostomium and tentacular segment, dorsal view; dorsal surface of anterior segments cut back showing posterior part of prostomium; right dorsal tentacular cirrus missing; b, anterior end, ventral view; right side not completely shown; buccal ventral cirri broken near bases; e, parapodium from setiger 3, posterior view; d, neurosetae from same; e, parapodium from setiger 4, anterior view; /, parapodium from setiger 6, posterior view; g, parapodium from anterior region, anterior view; h, same, posterior view; i, neurosetae from same; j, parapodium from middle region, anterior view; k, neurosetae from same; /, right third elytron; m, left anterior elytron; n, right middle elytron.
</paragraph>
</caption>
<caption id="3C8E6B45FA757A4D793A0FD6E32204F7" pageId="25" pageNumber="22">
<paragraph id="BEDEA13362DA14687B6CB15E43294621" pageId="25" pageNumber="22">
<pageBreakToken id="5D013AFD80EF87E943ED02C43D09BAEB" pageId="25" pageNumber="22" start="start">Figure</pageBreakToken>
13.-
<taxonomicName id="11DFC1179EEFD8E87250A4A343572766" class="Polychaeta" family="Sigalionidae" genus="Euthalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="25" pageNumber="22" phylum="Annelida" rank="species" species="digitata">Euthalenessa digitata</taxonomicName>
(
<typeStatus id="A8BC57A096B682784CD765384B72E002">syntype</typeStatus>
of
<taxonomicName id="766847113358D11424D87D1DCA9551DB" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="25" pageNumber="22" phylum="Annelida" rank="species" species="djiboutiensis">Thalenessa djiboutiensis</taxonomicName>
, MNHNP): a, Anterior end, dorsal view; pharynx extended; b, parapodium from setiger 3, posterior view; c, neurosetae from same; d, parapodium from anterior region (segment 24), posterior view; e, neurosetae from same; /, parapodium from middle region, anterior view; g, neurosetae from same; h, right second elytron; i, right tenth elytron;;, right middle elytron.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="EC7283A2655E7E3A3E86EB7229F392FB" type="distribution">
<paragraph id="74354E04C232A655884C4556656F080B" pageId="25" pageNumber="22">Distribution.-Western Pacific Ocean (Admiralty Islands, north of New Guinea), Red Sea, Persian Gulf, and Gulf of Oman, Maldives? Ceylon? In 10 to 45 meters.</paragraph>
</subSubSection>
<subSubSection id="1D6A5987243C9A1FBE5D970A025BF01C" type="discussion">
<paragraph id="451748710D2E0F26DAA5DF3A4745FD3C" pageId="25" pageNumber="22">
Remarks.-The specimens reported by Willey (1905) from Ceylon and by Potts (1910) from the Maldives, as
<taxonomicName id="10F56F1AF3FEEA652D693FA48842A2B6" class="Polychaeta" family="Sigalionidae" genus="Thalenessa" genus.bestMatchDistance="141" genus.bestMatchVote="2" genus.innerRound="1" genus.outerRound="1" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="25" pageNumber="22" phylum="Annelida" rank="species" species="digitata">T. digitata</taxonomicName>
, need to be reexamined. The record of
<taxonomicName id="D97FE05847CC24641503DB7760A3A952" class="Polychaeta" family="Sigalionidae" genus="Euthalenessa" genus.bestMatchDistance="1685" genus.bestMatchVote="2" genus.innerRound="1" genus.outerRound="1" higherTaxonomySource="CoL" kingdom="Animalia" order="Phyllodocida" pageId="25" pageNumber="22" phylum="Annelida" rank="species" species="djiboutiensis">E. djiboutiensis</taxonomicName>
by Monro (1937) from the Maldives was based on a small specimen in poor condition(
<collectionCode id="F98FF38981730C26A4FA4A7F11F2DCCF" collectionName="United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]">BMNH</collectionCode>
1937: 9: 2: 68); the specimen was reexamined and the record is considered doubtful.
</paragraph>
</subSubSection>
</treatment>
</document>
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