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<mods:title id="2AF2737F09A4447DB082ED753845DF06">A taxonomic guide to the brittle-stars (Echinodermata, Ophiuroidea) from the State of Paraiba continental shelf, Northeastern Brazil</mods:title>
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<mods:namePart id="0243F27AE90C16120AADC73F1DA89A15">Gondim, Anne I.</mods:namePart>
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<mods:namePart id="DF781A94F6D3EB30508BED1E430A9DDE">Alonso, Carmen</mods:namePart>
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<mods:namePart id="017844B3EB6382301A3A2FCD7F5ECDB2">Dias, Thelma L. P.</mods:namePart>
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<mods:namePart id="07568CDD276B6EB4166A5D753F86EF97">Manso, Cynthia L. C.</mods:namePart>
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<mods:namePart id="B6CBF029DFE4D5F27E7D0CC528FAAAAD">Christoffersen, Martin L.</mods:namePart>
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<treatment id="EF10F3C7A6571DDDA34BBE4C1EFCC963" ID-GBIF-Taxon="152044886" LSID="urn:lsid:plazi:treatment:EF10F3C7A6571DDDA34BBE4C1EFCC963" httpUri="http://treatment.plazi.org/id/EF10F3C7A6571DDDA34BBE4C1EFCC963" lastPageId="23" lastPageNumber="67" pageId="21" pageNumber="66" scope_class="Ophiuroidea" scope_family="Ophiocomidae" scope_phylum="Echinodermata">
<subSubSection id="937BA98978B6D64413F98564E676C47D" pageId="21" pageNumber="66" type="nomenclature">
<paragraph id="DC94928286203CE92D7F1A4EA568DB77" pageId="21" pageNumber="66">
<taxonomicName id="A6323A60946B67BA19795716ECE73C98" ID-CoL="49Z6Q" LSID="http://species-id.net/wiki/Ophiopsila_hartmeyeri" authority="Koehler, 1913" authorityName="Koehler" authorityYear="1913" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="21" pageNumber="66" phylum="Echinodermata" rank="species" species="hartmeyeri">Ophiopsila hartmeyeri Koehler, 1913</taxonomicName>
Figure 12
<normalizedToken id="9CFB8AA56F8F0087C550B8FFE35CBEE4" originalValue="ae">a-e</normalizedToken>
</paragraph>
</subSubSection>
<subSubSection id="1E37F491808603A7FD12D2CD8720554C" lastPageId="22" lastPageNumber="67" pageId="21" pageNumber="66" type="description">
<paragraph id="922B13FEB34D58F7177FE82FE1C5D0AE" pageId="21" pageNumber="66">Description.</paragraph>
<paragraph id="F1E3B734E5C63D946414521E20C50E3C" lastPageId="22" lastPageNumber="67" pageId="21" pageNumber="66">
Disk circular (dd = 1.30 to 6.90 mm). Covered by imbricating scales of different sizes, largest between radial shields and on interradial margin of disk (Fig. 12a). Radial shields narrow, long, broadly separated, distal end slightly broader, distinct from remaining disk because of their white coloration (Fig. 12a). Numerous olive-green patches on the dorsal and ventral sides of the disk (Fig. 12a). Ventral interradius with scales similar to dorsal disk surface (Fig. 12b). Bursal slits broad and elongated. Oral shields large, diamond-shaped, laterally broadened, some with a dark spot on distal margin. Two spatulate oral papillae (Fig. 12c), borders slightly denteate, on each margin of jaw, the outer one slightly longer. A cluster of dental papillae on apex of jaw (Fig. 12c). Dorsal arm plate slightly wider than long, distal border slightly wider than anterior border (Fig. 12d). Ventral arm plate longer than wide, pentagonal, posterior margin concave (Fig. 12e). Two tentacle scales (Fig. 12b, e), outer smaller and inner longer, flattened and overreaching median ventral plane of arm. Tentacle pore large. Four to
<pageBreakToken id="44DDBB7B52E7D041A28182A3A9318D13" pageId="22" pageNumber="67" start="start">six</pageBreakToken>
arm spines, ventral one longest and slightly curved (Fig. 12d, e). Remaining spines decrease in size ventralwards, with small denticles at apex. Two close brown stripes on lateral arm plate, and a lighter median band on the dorsal arm plate (Fig. 12a, d). Ventral surface sometimes with two brown stripes close to insertion of spines.
</paragraph>
<caption id="7D081FBF0183BF46A838175077E4FAC8" pageId="22" pageNumber="67">
<paragraph id="7532ED6993B677C5FB1A19DCD6C12D2D" pageId="22" pageNumber="67">
Figure 12. Specimen of the family
<taxonomicName id="B534400803420D1DB45BE6162969429A" class="Ophiuroidea" family="Ophiocomidae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophiacanthida" pageId="22" pageNumber="67" phylum="Echinodermata" rank="family">Ophiocomidae</taxonomicName>
(
<normalizedToken id="B815066D8B53C46E7920467D0406B21A" originalValue="ae">a-e</normalizedToken>
).
<taxonomicName id="D0CBC8CA6FE105642094B22E9669B5D3" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="22" pageNumber="67" phylum="Echinodermata" rank="species" species="hartmeyeri">Ophiopsila hartmeyeri</taxonomicName>
A dorsal view, detail of the radial shields B ventral view, detail of the tentacle scale C jaw D dorsal view of the arms E ventral view of the arms. Scale bar = 1 mm.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="762E6AD1648877F8D212F64D91DC7281" pageId="22" pageNumber="67" type="distribution">
<paragraph id="814ACD5538A42B1B1A5130858E76373D" pageId="22" pageNumber="67">Distribution.</paragraph>
<paragraph id="A8C300A072429DAF1FB1C2145A13D22F" pageId="22" pageNumber="67">
Florida Keys, the Mexican Caribbean, the Antilles, Costa Rica, Colombia, Venezuela, and Brazil (
<bibRefCitation id="999A92D64E3629FD0459E2FBEAB10542" author="Hendler, G" journalOrPublisher="Smithsonian Institution Press, Washington" pageId="33" pageNumber="78" title="Sea stars, sea urchins and allies: echinoderms of Florida and the Caribbean." year="1995">Hendler et al. 1995</bibRefCitation>
,
<bibRefCitation id="9690B19BD32FAE90D356E8E8A0DA1EED" author="Alvarado, JJ" journalOrPublisher="Revista de Biologia Tropical" pageId="29" pageNumber="74" pagination="37 - 55" title="Echinoderms (Echinodermata) from Central America Caribbean." volume="56" year="2008">Alvarado et al. 2008</bibRefCitation>
,
<bibRefCitation id="F03B358314BB6A2E28E45E75448F948F" author="Borrero-Perez, GH" journalOrPublisher="Revista de Biologia Tropical" pageId="30" pageNumber="75" pagination="169 - 204" title="Brittle-stars (Echinodermata: Ophiuroidea) from the continental shelf and upper slope of the Colombian Caribbean." volume="56" year="2008">
<normalizedToken id="8EF55E6CBF12A77B394BAC0DB2FD3E0F" originalValue="Borrero-Pérez">Borrero-Perez</normalizedToken>
et al. 2008
</bibRefCitation>
). In Brazil, from Abrolhos off southern Bahia (
<bibRefCitation id="EACCB45F8B4BF7D5CAF4A7BC419A2B5C" author="Tommasi, LR" journalOrPublisher="Anales del Instituto de Biologia" pageId="36" pageNumber="81" title="Os ofiuroides recentes do Brasil e de regioes vizinhas. Contribuicoes do Instituto Oceanografico, Universidade de Sao Paulo Serie Oceanografia Biologica 20: 1 - 146." url="10.1590/S0373-55241971000100001" year="1970">Tommasi 1970</bibRefCitation>
). From 12 to 161m (
<bibRefCitation id="E68DF756A62297DDA6E1313CE85C7CE3" author="Hendler, G" journalOrPublisher="Smithsonian Institution Press, Washington" pageId="33" pageNumber="78" title="Sea stars, sea urchins and allies: echinoderms of Florida and the Caribbean." year="1995">Hendler et al. 1995</bibRefCitation>
). Recorded 12 and 30 m in present account.
</paragraph>
</subSubSection>
<subSubSection id="E01071DBFC3A3321E95A6615B808E428" lastPageId="23" lastPageNumber="68" pageId="22" pageNumber="67" type="remarks">
<paragraph id="9D15966CC11CC5402583EA97F75D204A" pageId="22" pageNumber="67">Remarks.</paragraph>
<paragraph id="1B23262D62B01AF7C042D82420C839C7" lastPageId="23" lastPageNumber="68" pageId="22" pageNumber="67">
Typically, this is a coralline bottom species (
<bibRefCitation id="14CFD85774FC118814C9F765E7037751" author="Tommasi, LR" journalOrPublisher="Anales del Instituto de Biologia" pageId="36" pageNumber="81" title="Os ofiuroides recentes do Brasil e de regioes vizinhas. Contribuicoes do Instituto Oceanografico, Universidade de Sao Paulo Serie Oceanografia Biologica 20: 1 - 146." url="10.1590/S0373-55241971000100001" year="1970">Tommasi 1970</bibRefCitation>
).
<bibRefCitation id="B2C4F67750DAC438075335DCD7206F32" author="Abreu-Perez, M" journalOrPublisher="Revista de Biologia Tropical" pageId="29" pageNumber="74" pagination="29 - 52" title="Catalogue of neritic-benthonic echinoderms (Echinodermata: Asteroidea and Ophiuroidea) from the Cuban Archipelago." volume="53" year="2005">
<normalizedToken id="1E3BD9B0CDC8FE57A8E61FE9078E432D" originalValue="Abreu-Pérez">Abreu-Perez</normalizedToken>
et al. (2005)
</bibRefCitation>
also record the species for sandy substrates and on rocks and corals. We record this species mainly in rhodolites.
<taxonomicName id="BD70CA820AA454E1FB0CD3B8DD108249" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="hartmeyeri">
<pageBreakToken id="E472FBBEA5CD3C9A603607112F9A4D9C" pageId="23" pageNumber="68" start="start">Ophiopsila</pageBreakToken>
hartmeyeri
</taxonomicName>
showed a mosaic distribution of characters described for
<taxonomicName id="F0B43781AA74516B4F81116C68C3DF7A" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila maculata" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="maculata">Ophiopsila maculata</taxonomicName>
(Verrill, 1899), and
<taxonomicName id="F63AC2BF81EAEE22E7950492CFB1BD31" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila riisei" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="riisei">Ophiopsila riisei</taxonomicName>
<normalizedToken id="239C774775E3D51A0ED0A55F6BDD4496" originalValue="Lütken">Luetken</normalizedToken>
, 1859.
<taxonomicName id="DAA9D1723F2BE93061CDB3C418FF065F" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="hartmeyeri">Ophiopsila hartmeyeri</taxonomicName>
was similar to
<taxonomicName id="C57DC0CEB84B47A0132C8E3D227F42CC" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila maculata" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="maculata">Ophiopsila maculata</taxonomicName>
in having black dots on each oral shield, originally diagnosed by
<bibRefCitation id="4EF6915415D8D922CE8660056F7AA7E1" author="Tommasi, LR" journalOrPublisher="Anales del Instituto de Biologia" pageId="36" pageNumber="81" title="Os ofiuroides recentes do Brasil e de regioes vizinhas. Contribuicoes do Instituto Oceanografico, Universidade de Sao Paulo Serie Oceanografia Biologica 20: 1 - 146." url="10.1590/S0373-55241971000100001" year="1970">Tommasi (1970)</bibRefCitation>
. Comparing
<taxonomicName id="82BA3DAC3D2F2A285CD236216A5EE2B1" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="hartmeyeri">Ophiopsila hartmeyeri</taxonomicName>
with
<taxonomicName id="0B27CB61BAC3791600C3E30CB0E2B391" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila riisei" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="riisei">Ophiopsila riisei</taxonomicName>
, both share these black spots also on the dorsal surface of the disk, a character previously considered diagnostic for
<taxonomicName id="1A5C3263115E9B8A3A80E091EF9BE84C" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila riisei" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="riisei">Ophiopsila riisei</taxonomicName>
(Koehler 1913). The specimens of
<taxonomicName id="E5F67869935100B740A38BEA120A81E1" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="hartmeyeri">Ophiopsila hartmeyeri</taxonomicName>
from the
<normalizedToken id="555C61BB85EC2F84C5E608937BEE2B46" originalValue="Paraíba">Paraiba</normalizedToken>
coast have a smaller number of spines (four or six) than that recorded in the literature (eight arm spines). However, their shape is characteristic for
<taxonomicName id="CA809D202A9A3DD0E35EF942CC1A12E3" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila hartmeyeri" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="species" species="hartmeyeri">Ophiopsila hartmeyeri</taxonomicName>
(sword-shaped). In the present study we follow the older classification, in which the genus
<taxonomicName id="6B96342DB4F9D18ACEDADB7FC214A35D" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="genus">Ophiopsila</taxonomicName>
belong to the family
<taxonomicName id="65C0CA0BD9040BB561CB3D66D405A757" class="Ophiuroidea" family="Ophiocomidae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophiacanthida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="family">Ophiocomidae</taxonomicName>
, as this genus does not have a pair of infradental papillae (diagnostic character of
<taxonomicName id="66FC70B5792345E08D3609135199D4E8" class="Ophiuroidea" family="Amphiuridae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="family">Amphiuridae</taxonomicName>
), but has tooth papillae (a cluster of short, granule-like apical papillae on the dental plate) (one of the diagnostic characters of
<taxonomicName id="C2FF11262988DA1E726A9AC21B6FE6DB" class="Ophiuroidea" family="Ophiocomidae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Ophiacanthida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="family">Ophiocomidae</taxonomicName>
).
<bibRefCitation id="D82A5EAF4E1884D3B42EDBEFF6D598F2" author="Martynov, A" journalOrPublisher="Zootaxa" pageId="35" pageNumber="80" pagination="1 - 154" title="Reassessment of the classification of the Ophiuroidea (Echinodermata), based on morphological characters. I. General character evaluation and delineation of the families Ophiomyxidae and Ophiacanthidae." volume="2697" year="2010">Martynov (2010)</bibRefCitation>
proposed transfering the genus
<taxonomicName id="DA31891FC5471E9AB027A3C999066AAF" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="genus">Ophiopsila</taxonomicName>
to the familyAmphiuridade on the basis of the morphology of the lateral arm plate.
<bibRefCitation id="D7780AC444EBDB40156959F92ED0F5B9" author="Murakami, S" journalOrPublisher="Transactions of the Royal Society of New Zealand" pageId="35" pageNumber="80" pagination="1 - 47" title="The dental and oral plates of Ophiuroidea." volume="4" year="1963">Murakami (1963)</bibRefCitation>
, in his exaustive study on the dental and oral plates, suggests that the dental plate of the genus
<taxonomicName id="0E252F33CE007AD48D4618BB65B8E4D6" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="genus">Ophiopsila</taxonomicName>
is most closely related to the family
<taxonomicName id="E5DF2FF6DC6319C26B4ACB4E3B88D878" class="Ophiuroidea" family="Ophionereididae" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="family">Ophionereididae</taxonomicName>
. The systematic position of
<taxonomicName id="234F0400377D8D12996C05B7195DC5D8" class="Ophiuroidea" family="Ophiopsilidae" genus="Ophiopsila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ophiopsila" order="Amphilepidida" pageId="23" pageNumber="68" phylum="Echinodermata" rank="genus">Ophiopsila</taxonomicName>
is thus still uncertain and needs further studies.
</paragraph>
</subSubSection>
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