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<document id="F4DBEDAD0DEE4AFF10A6D9580F0287C2" ID-CLB-Dataset="37318" ID-DOI="10.5281/zenodo.245827" ID-GBIF-Dataset="69cf893c-7b35-48e8-ad78-d9775626f287" ID-ISSN="1175-5326" ID-Zenodo-Dep="245827" ID-ZooBank="9345C596-8656-4B5C-AD8C-2FACF4E9240C" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1484506177574" checkinUser="GgServerImporter" docAuthor="Blake, James A." docDate="2017" docId="8F2387DD06790961FF31FF73FA49FA13" docLanguage="en" docName="Zootaxa.4218.1.001-145" docOrigin="Zootaxa 4218 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Orbiniella Day 1954" docType="treatment" docVersion="14" lastPageNumber="109" masterDocId="731AFFA50615090DFFA6FFEBFFDCFFC0" masterDocTitle="Polychaeta Orbiniidae from Antarctica, the Southern Ocean, the Abyssal Pacific Ocean, and off South America" masterLastPageNumber="145" masterPageNumber="1" pageNumber="109" updateTime="1698435671898" updateUser="ExternalLinkService">
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<mods:title id="18FA072DA1E203052E5599F7987768E0">Polychaeta Orbiniidae from Antarctica, the Southern Ocean, the Abyssal Pacific Ocean, and off South America</mods:title>
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<mods:namePart id="9E9ED131ECD2D41E66993ADAD4B30CF5">Blake, James A.</mods:namePart>
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<mods:date id="7CFEE92133E8FC9F84AAB041897ED76F">2017</mods:date>
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<mods:identifier id="7AFBEF12CC3BA72CCD85810893FC4731" type="DOI">10.5281/zenodo.245827</mods:identifier>
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<treatment id="8F2387DD06790961FF31FF73FA49FA13" ID-DOI="http://doi.org/10.5281/zenodo.4901823" ID-GBIF-Taxon="127421984" ID-Zenodo-Dep="4901823" LSID="urn:lsid:plazi:treatment:8F2387DD06790961FF31FF73FA49FA13" httpUri="http://treatment.plazi.org/id/8F2387DD06790961FF31FF73FA49FA13" lastPageNumber="109" pageId="108" pageNumber="109">
<subSubSection id="4F90654006790961FF31FF73FD35FF34" pageId="108" pageNumber="109" type="nomenclature">
<paragraph id="073536CB06790961FF31FF73FE37FF72" blockId="108.[151,491,151,178]" box="[151,491,151,178]" pageId="108" pageNumber="109">
<heading id="5C7D81A706790961FF31FF73FE37FF72" bold="true" box="[151,491,151,178]" fontSize="11" level="1" pageId="108" pageNumber="109" reason="1">
<emphasis id="35FEEAD906790961FF31FF73FE37FF72" bold="true" box="[151,491,151,178]" pageId="108" pageNumber="109">
Genus
<taxonomicName id="C08A4D4806790961FF48FF7CFE37FF72" ID-CoL="84RBM" authority="Day, 1954" authorityName="Day" authorityYear="1954" box="[238,491,151,178]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FF48FF7CFEB6FF71" bold="true" box="[238,362,151,177]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
<bibRefCitation id="631B4B3A06790961FED7FF73FE37FF72" author="Day" box="[369,491,152,178]" pageId="108" pageNumber="109" refString="Day, J. H. (1954) The Polychaete of Tristan da Cunha 1937 - 1938. Results of the Norwegian Expedition to Tristan da Cunha 1937 - 1937, No. 29, 1 - 35. Oslo." type="book chapter" year="1954">Day, 1954</bibRefCitation>
</taxonomicName>
</emphasis>
</heading>
</paragraph>
<paragraph id="073536CB06790961FF31FF35FD35FF34" blockId="108.[151,1435,222,306]" box="[151,745,222,245]" pageId="108" pageNumber="109">
<emphasis id="35FEEAD906790961FF31FF35FEFBFF34" bold="true" box="[151,295,222,244]" pageId="108" pageNumber="109">Type-species:</emphasis>
<taxonomicName id="C08A4D4806790961FE8BFF35FD88FF34" authority="Day, 1954" authorityName="Day" authorityYear="1954" box="[301,596,222,245]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="minuta">
<emphasis id="35FEEAD906790961FE8BFF35FE38FF35" box="[301,484,222,245]" italics="true" pageId="108" pageNumber="109">Orbiniella minuta</emphasis>
<bibRefCitation id="631B4B3A06790961FE4CFF34FD88FF34" author="Day" box="[490,596,222,244]" pageId="108" pageNumber="109" refString="Day, J. H. (1954) The Polychaete of Tristan da Cunha 1937 - 1938. Results of the Norwegian Expedition to Tristan da Cunha 1937 - 1937, No. 29, 1 - 35. Oslo." type="book chapter" year="1954">Day, 1954</bibRefCitation>
</taxonomicName>
, by monotypy.
</paragraph>
</subSubSection>
<subSubSection id="4F90654006790961FF31FF16FEEFFEF2" pageId="108" pageNumber="109" type="description">
<paragraph id="073536CB06790961FF31FF16FEEFFEF2" blockId="108.[151,1435,222,306]" pageId="108" pageNumber="109">
<emphasis id="35FEEAD906790961FF31FF16FED9FED3" bold="true" box="[151,261,253,275]" pageId="108" pageNumber="109">Synonym:</emphasis>
<taxonomicName id="C08A4D4806790961FEADFF16FDE8FED3" authority="Hartman, 1967" authorityName="Hartman" authorityYear="1967" box="[267,564,253,275]" class="Polychaeta" family="Orbiniidae" genus="Falklandiella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FEADFF16FE48FED3" box="[267,404,253,275]" italics="true" pageId="108" pageNumber="109">Falklandiella</emphasis>
<bibRefCitation id="631B4B3A06790961FE3FFF15FDE8FED3" author="Hartman" box="[409,564,253,275]" pageId="108" pageNumber="109" refString="Hartman, O. (1967) Polychaetous annelids collected by the USNS Eltanin and Staten Island cruises, chiefly from Antarctic seas. Allan Hancock Monographs in Marine Biology, 2, 1 - 387, 51 plates." type="book chapter" year="1967">Hartman, 1967</bibRefCitation>
</taxonomicName>
.
<emphasis id="35FEEAD906790961FD9BFF16FDB0FED3" box="[573,620,253,275]" italics="true" pageId="108" pageNumber="109">Fide</emphasis>
<bibRefCitation id="631B4B3A06790961FDD4FF16FCF7FED3" author="Buzhinskaja" box="[626,811,253,275]" pageId="108" pageNumber="109" refString="Buzhinskaja, G. N. (1992) Orbiniella plumisetosa sp. n. First find of a polychaete of the subfamily Protoariciinae in the northwestern Pacific and characteristics of the genus Orbiniella (Polychaeta: Orbiniidae). In: Buzhinskaja, G. N. (Ed.), Polychaeta and their Ecological Significance. Explorations of the Fauna of the Seas, 43 (51), 76 - 81. [figures 1 - 3. Zoological Institute, Russian Academy of Sciences, St. Petersburg.] [In Russian, English translation April 1995 by A. V. Verashchaka, P. P. Shirshov Institute of Oceanology, Moscow]" type="journal article" year="1992">Buzhinskaja 1992</bibRefCitation>
: 76.
<emphasis id="35FEEAD906790961FCFDFF16FC36FED3" bold="true" box="[859,1002,253,275]" pageId="108" pageNumber="109">Type species:</emphasis>
<taxonomicName id="C08A4D4806790961FC49FF16FAA4FED3" authority="Hartman, 1967" authorityName="Hartman" authorityYear="1967" box="[1007,1400,253,275]" class="Polychaeta" family="Orbiniidae" genus="Falklandiella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="annulata">
<emphasis id="35FEEAD906790961FC49FF16FB04FED3" box="[1007,1240,253,275]" italics="true" pageId="108" pageNumber="109">Falklandiella annulata</emphasis>
<bibRefCitation id="631B4B3A06790961FB78FF15FAA4FED3" author="Hartman" box="[1246,1400,253,275]" pageId="108" pageNumber="109" refString="Hartman, O. (1967) Polychaetous annelids collected by the USNS Eltanin and Staten Island cruises, chiefly from Antarctic seas. Allan Hancock Monographs in Marine Biology, 2, 1 - 387, 51 plates." type="book chapter" year="1967">Hartman, 1967</bibRefCitation>
</taxonomicName>
, by monotypy.
</paragraph>
</subSubSection>
<subSubSection id="4F90654006790961FF31FEB5FC8BFD57" pageId="108" pageNumber="109" type="diagnosis">
<paragraph id="073536CB06790961FF31FEB5FC8BFD57" blockId="108.[151,1437,350,1491]" pageId="108" pageNumber="109">
<emphasis id="35FEEAD906790961FF31FEB5FECDFEB7" bold="true" box="[151,273,350,375]" pageId="108" pageNumber="109">Diagnosis.</emphasis>
Body elongate, with separation between thorax and abdomen indistinct, anterior segments may be narrower than more posterior segments, but size changing gradually over several segments, or no change in appearance between anterior and posterior segments; prostomium broad or elongate with paired nuchal organs usually present, these sometimes pigmented, eyespots present or absent; peristomium with 1–2 asetigerous rings. Noto- and neuropodia poorly developed, consisting of low tori from which setae emerge; with only simple postsetal lamellae, or these entirely absent; posterior parapodia not elevated and shifted dorsally as in genera of the
<taxonomicName id="C08A4D4806790961FF31FDDDFECEFD8F" box="[151,274,566,591]" class="Polychaeta" family="Orbiniidae" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="subFamily" subFamily="Orbiniinae">Orbiniinae</taxonomicName>
. Capillary noto- and neurosetae always crenulated or weakly camerated with pointed bristles apparent at relatively low magnification (100x); prominent acicular spines present or absent in noto- and neuropodia, or entirely absent; furcate setae absent. Branchiae entirely absent.
</paragraph>
</subSubSection>
<subSubSection id="4F90654006790961FF61FD49FA49FA13" pageId="108" pageNumber="109" type="discussion">
<paragraph id="073536CB06790961FF61FD49FA97FCAF" blockId="108.[151,1437,350,1491]" pageId="108" pageNumber="109">
<emphasis id="35FEEAD906790961FF61FD49FEE7FD7B" bold="true" box="[199,315,674,699]" pageId="108" pageNumber="109">Remarks.</emphasis>
Species of
<taxonomicName id="C08A4D4806790961FE64FD48FDEBFD7B" box="[450,567,675,699]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FE64FD48FDEBFD7B" box="[450,567,675,699]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
</taxonomicName>
are generally small and with a simple morphology, resulting in a taxonomy that is largely based on negative characters. In this respect, it is highly likely that several of the described species are in fact juveniles or post-larval stages of other species of
<taxonomicName id="C08A4D4806790961FCDDFD01FC2AFCC3" box="[891,1014,746,771]" class="Polychaeta" family="Orbiniidae" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="family">Orbiniidae</taxonomicName>
. This is, however, very difficult to demonstrate without a good growth sequence documenting morphological change. An examination of one of the SEM images of
<taxonomicName id="C08A4D4806790961FEF2FCD8FCF4FC8B" authority="in Gillet" authorityName="in Gillet" authorityYear="1999" box="[340,808,818,843]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="marionensis">
<emphasis id="35FEEAD906790961FEF2FCD8FDDEFC8A" box="[340,514,819,842]" italics="true" pageId="108" pageNumber="109">O. marionensis</emphasis>
in
<bibRefCitation id="631B4B3A06790961FD8DFCD9FCF4FC8B" author="Gillet" box="[555,808,818,843]" pageId="108" pageNumber="109" refString="Gillet, P. (1999) A new species of Orbiniella (Orbiniidae: Polychaeta) from Marion Island, Indian Ocean. Proceedings of the Biological Society of Washington, 112, 592 - 597." type="journal article" year="1999">
Gillet (1999:
<figureCitation id="9FB12A4E06790961FD61FCD9FCD7FC8B" box="[711,779,818,843]" captionStart="FIGURE 2" captionStartId="11.[151,249,1900,1922]" captionTargetBox="[164,1425,201,1873]" captionTargetId="figure@11.[151,1436,193,1879]" captionTargetPageId="11" captionText="FIGURE 2. Berkeleyia heroae n. sp. Paratype (USNM 60634). A, anterior end, ventrolateral view; B, abdominal parapodium; C, abdominal neuropodial capillaries and bidentate spines; D, same, different neuropodium, arrow denotes bidentate tip of spine; E, abdominal notopodial furcate setae, arrows denote openings in tips of tynes. — Berkeleyia abyssala (Sta. PS- 67 / 142 - 7). F. anterior end, dorsal view; G, thoracic neuropodial capillaries." httpUri="https://zenodo.org/record/245829/files/figure.png" pageId="108" pageNumber="109">Fig. 2</figureCitation>
D)
</bibRefCitation>
</taxonomicName>
clearly shows that furcate setae are present in the last notopodium on the right side. This suggests that this species at least, is likely a juvenile of another orbiniid.
</paragraph>
<paragraph id="073536CB06790961FF61FC91FA48FC3E" blockId="108.[151,1437,350,1491]" pageId="108" pageNumber="109">
<tableCitation id="4A08037006790961FF61FC91FEC7FC53" box="[199,283,890,915]" captionStart="TABLE 2" captionStartId="109.[125,199,593,613]" captionText="TABLE 2. Comparison of known species Orbiniella. (1)" pageId="108" pageNumber="109">Table 2</tableCitation>
provides a list of 13 species of
<taxonomicName id="C08A4D4806790961FD2EFC90FD21FC53" box="[648,765,891,915]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FD2EFC90FD21FC53" box="[648,765,891,915]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
</taxonomicName>
and main morphology. Two other species do not belong in the genus:
<taxonomicName id="C08A4D4806790961FEBDFC74FE56FC76" box="[283,394,926,950]" class="Polychaeta" family="Orbiniidae" genus="Leitoscoloplos" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="drakei">
<emphasis id="35FEEAD906790961FEBDFC74FE56FC76" box="[283,394,926,950]" italics="true" pageId="108" pageNumber="109">O. drakei</emphasis>
</taxonomicName>
is transferred to
<taxonomicName id="C08A4D4806790961FDFBFC75FCDDFC76" box="[605,769,926,950]" class="Polychaeta" family="Orbiniidae" genus="Leitoscoloplos" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FDFBFC75FCDDFC76" box="[605,769,926,950]" italics="true" pageId="108" pageNumber="109">Leitoscoloplos</emphasis>
</taxonomicName>
(see above) and
<taxonomicName id="C08A4D4806790961FC72FC74FBABFC76" box="[980,1143,926,950]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="branchiata">
<emphasis id="35FEEAD906790961FC72FC74FBABFC76" box="[980,1143,926,950]" italics="true" pageId="108" pageNumber="109">O. branchiata</emphasis>
</taxonomicName>
does not agree with the definition of the genus because it has branchiae, elongate postsetal lamellae, and may be a juvenile of another orbiniid (see below). Of the 13 species listed in
<tableCitation id="4A08037006790961FD09FC0DFCD8FC3F" box="[687,772,998,1023]" captionStart="TABLE 2" captionStartId="109.[125,199,593,613]" captionText="TABLE 2. Comparison of known species Orbiniella. (1)" pageId="108" pageNumber="109">Table 2</tableCitation>
, four occur in deep water and nine occur in shallow water.
</paragraph>
<paragraph id="073536CB06790961FF61FBE1FB24FBAA" blockId="108.[151,1437,350,1491]" pageId="108" pageNumber="109">
The four deep-water species all have noto- and neuropodial acicular spines. Of these,
<taxonomicName id="C08A4D4806790961FB70FBE0FAB6FBE3" box="[1238,1386,1035,1059]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="hobsonae">
<emphasis id="35FEEAD906790961FB70FBE0FAB6FBE3" box="[1238,1386,1035,1059]" italics="true" pageId="108" pageNumber="109">O. hobsonae</emphasis>
</taxonomicName>
has crenulated acicular spines instead of smooth and
<taxonomicName id="C08A4D4806790961FD64FBC4FC82FB86" box="[706,862,1071,1094]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="petersenae">
<emphasis id="35FEEAD906790961FD64FBC4FC82FB86" box="[706,862,1071,1094]" italics="true" pageId="108" pageNumber="109">O. petersenae</emphasis>
</taxonomicName>
is the only one to have four anal cirri. For the two remaining species,
<taxonomicName id="C08A4D4806790961FEC8FBB8FE2BFBAB" box="[366,503,1107,1131]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="andeepia">
<emphasis id="35FEEAD906790961FEC8FBB8FE2BFBAB" box="[366,503,1107,1131]" italics="true" pageId="108" pageNumber="109">O. andeepia</emphasis>
</taxonomicName>
has short notopodial postsetal lamellae while
<taxonomicName id="C08A4D4806790961FC5AFBB8FB5AFBAB" box="[1020,1158,1107,1131]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="aciculata">
<emphasis id="35FEEAD906790961FC5AFBB8FB5AFBAB" box="[1020,1158,1107,1131]" italics="true" pageId="108" pageNumber="109">O. aciculata</emphasis>
</taxonomicName>
has none.
</paragraph>
<paragraph id="073536CB06790961FF61FB9DFA49FA13" blockId="108.[151,1437,350,1491]" pageId="108" pageNumber="109">
Of the nine shallow-water species, both
<taxonomicName id="C08A4D4806790961FD37FB9CFCF2FB4E" box="[657,814,1142,1166]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="landrumae" status="sp. nov.">
<emphasis id="35FEEAD906790961FD37FB9CFCF2FB4E" box="[657,814,1142,1166]" italics="true" pageId="108" pageNumber="109">O. landrumae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="2ECD57A206790961FC91FB9DFCABFB4E" box="[823,887,1142,1167]" pageId="108" pageNumber="109" rank="species">
<emphasis id="35FEEAD906790961FC91FB9DFCADFB4F" bold="true" box="[823,881,1142,1167]" pageId="108" pageNumber="109">n. sp</emphasis>
.
</taxonomicNameLabel>
and
<taxonomicName id="C08A4D4806790961FC17FB9CFB81FB4E" box="[945,1117,1143,1166]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="marionensis">
<emphasis id="35FEEAD906790961FC17FB9CFB81FB4E" box="[945,1117,1143,1166]" italics="true" pageId="108" pageNumber="109">O. marionensis</emphasis>
</taxonomicName>
have furcate setae and with further assessment may not belong in
<taxonomicName id="C08A4D4806790961FDE3FB70FD66FB73" box="[581,698,1179,1203]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FDE3FB70FD66FB73" box="[581,698,1179,1203]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
</taxonomicName>
at all. In addition,
<taxonomicName id="C08A4D4806790961FC35FB70FBECFB73" box="[915,1072,1179,1203]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="landrumae">
<emphasis id="35FEEAD906790961FC35FB70FBECFB73" box="[915,1072,1179,1203]" italics="true" pageId="108" pageNumber="109">O. landrumae</emphasis>
</taxonomicName>
appears to have notopodial flail setae, another character not associated with
<taxonomicName id="C08A4D4806790961FD3BFB55FCCEFB16" box="[669,786,1214,1238]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FD3BFB55FCCEFB16" box="[669,786,1214,1238]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
</taxonomicName>
and its generic assignment is thus provisional. For the remaining seven species,
<taxonomicName id="C08A4D4806790961FE1DFB08FDD3FB3B" box="[443,527,1251,1275]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="dayi">
<emphasis id="35FEEAD906790961FE1DFB08FDD3FB3B" box="[443,527,1251,1275]" italics="true" pageId="108" pageNumber="109">O. dayi</emphasis>
</taxonomicName>
has small noto- and neuropodial postsetal lobes that are absent in the other six species. The remaining six species all have noto- and neuropodial acicular spines or short emergent aciculae. Of these,
<taxonomicName id="C08A4D4806790961FF47FAC0FE87FA82" box="[225,347,1323,1346]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="spinosa" status="sp. nov.">
<emphasis id="35FEEAD906790961FF47FAC0FE87FA82" box="[225,347,1323,1346]" italics="true" pageId="108" pageNumber="109">O. spinosa</emphasis>
</taxonomicName>
<emphasis id="35FEEAD906790961FEC3FAC1FE7BFA83" bold="true" box="[357,423,1322,1347]" pageId="108" pageNumber="109">
<taxonomicNameLabel id="2ECD57A206790961FEC3FAC1FE7BFA83" box="[357,423,1322,1347]" pageId="108" pageNumber="109" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
has unusual barbed or finely hirsute spines (see below). Apart from eyespots being are reported for
<emphasis id="35FEEAD906790961FE82FAA4FDE0FAA6" box="[292,572,1358,1382]" italics="true" pageId="108" pageNumber="109">
<taxonomicName id="C08A4D4806790961FE82FAA4FE5DFAA6" box="[292,385,1358,1382]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="nuda">O. nuda</taxonomicName>
,
<taxonomicName id="C08A4D4806790961FE2BFAA4FDE4FAA6" box="[397,568,1358,1382]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="plumisetosa">O. plumisetosa</taxonomicName>
,
</emphasis>
and
<taxonomicName id="C08A4D4806790961FDD2FAA4FD26FAA6" box="[628,762,1358,1382]" class="Polychaeta" family="Orbiniidae" genus="Falklandiella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="annulata">
<emphasis id="35FEEAD906790961FDD2FAA4FD26FAA6" box="[628,762,1358,1382]" italics="true" pageId="108" pageNumber="109">O. annulata</emphasis>
</taxonomicName>
, and absent in
<taxonomicName id="C08A4D4806790961FC03FAA4FBCAFAA6" box="[933,1046,1359,1382]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="minuta">
<emphasis id="35FEEAD906790961FC03FAA4FBCAFAA6" box="[933,1046,1359,1382]" italics="true" pageId="108" pageNumber="109">O. minuta</emphasis>
</taxonomicName>
and
<taxonomicName id="C08A4D4806790961FBEBFAA4FB07FAA7" box="[1101,1243,1359,1383]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="uniformis">
<emphasis id="35FEEAD906790961FBEBFAA4FB07FAA7" box="[1101,1243,1359,1383]" italics="true" pageId="108" pageNumber="109">O. uniformis</emphasis>
</taxonomicName>
, these remaining five species are similar in morphology and apart from overall body shape, prostomial shape, and the development of the two peristomial rings are separated with difficulty. The main taxonomic characters for species of
<taxonomicName id="C08A4D4806790961FA81FA7DFA40FA6E" box="[1319,1436,1430,1454]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FA81FA7DFA40FA6E" box="[1319,1436,1430,1454]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
</taxonomicName>
are presented in
<tableCitation id="4A08037006790961FEE9FA51FE79FA13" box="[335,421,1466,1491]" captionStart="TABLE 2" captionStartId="109.[125,199,593,613]" captionText="TABLE 2. Comparison of known species Orbiniella. (1)" pageId="108" pageNumber="109">Table 2</tableCitation>
. Five species, two new are treated below, with “
<taxonomicName id="C08A4D4806790961FC66FA50FBE8FA13" box="[960,1076,1467,1491]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="genus">
<emphasis id="35FEEAD906790961FC66FA50FBE8FA13" box="[960,1076,1467,1491]" italics="true" pageId="108" pageNumber="109">Orbiniella</emphasis>
</taxonomicName>
”
<taxonomicName id="C08A4D4806790961FBEEFA50FB1FFA13" box="[1096,1219,1467,1491]" class="Polychaeta" family="Orbiniidae" genus="Orbiniella" kingdom="Animalia" pageId="108" pageNumber="109" phylum="Annelida" rank="species" species="branchiata">
<emphasis id="35FEEAD906790961FBEEFA50FB1FFA13" box="[1096,1219,1467,1491]" italics="true" pageId="108" pageNumber="109">branchiata</emphasis>
</taxonomicName>
treated separately.
</paragraph>
</subSubSection>
</treatment>
</document>
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