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<document ID-DOI="http://dx.doi.org/10.3897/BDJ.8.e57572" ID-PMC="PMC7511464" ID-Pensoft-Pub="1314-2828-8-e57572" ID-Pensoft-UUID="9627C5A06E285DBFB389A57DFEE8433F" ID-PubMed="33013175" ID-ZooBank="CE3CFA74ABAA48A49EB22776C731837F" ModsDocID="1314-2828-8-e57572" checkinTime="1600294130755" checkinUser="pensoft" docAuthor="Yanez-Rivera, Beatriz, Tovar-Hernandez, Maria Ana, Galvan-Villa, Cristian Moises &amp; Rios-Jara, Eduardo" docDate="2020" docId="94724949B94A574AA5A67863088715EC" docLanguage="en" docName="BiodivDatJour 8: e57572" docOrigin="Biodiversity Data Journal 8" docSource="http://dx.doi.org/10.3897/BDJ.8.e57572" docTitle="Acromegalomma circumspectum" docType="treatment" docVersion="2" id="9627C5A06E285DBFB389A57DFEE8433F" lastPageNumber="57572" masterDocId="9627C5A06E285DBFB389A57DFEE8433F" masterDocTitle="Tubicolous polychaete worms (Annelida) from Bahia de Chamela Islands Sanctuary, Mexico, with the description of a new bamboo worm" masterLastPageNumber="57572" masterPageNumber="57572" pageNumber="57572" updateTime="1668128532144" updateUser="ExternalLinkService">
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<mods:title>Tubicolous polychaete worms (Annelida) from Bahia de Chamela Islands Sanctuary, Mexico, with the description of a new bamboo worm</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Yanez-Rivera, Beatriz</mods:namePart>
<mods:affiliation>CONACYT- Centro de Investigacion en Alimentacion y Desarrollo A. C. (CIAD), Unidad Mazatlan en Acuicultura y Manejo Ambiental, Mazatlan, Mexico</mods:affiliation>
<mods:nameIdentifier type="orcid">https://orcid.org/0000-0002-3192-2142</mods:nameIdentifier>
<mods:nameIdentifier type="email">beyariv@ciad.mx</mods:nameIdentifier>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Tovar-Hernandez, Maria Ana</mods:namePart>
<mods:affiliation>Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Biologicas, Laboratorio de Biosistematica, San Nicolas de los Garza, Nuevo Leon, Mexico</mods:affiliation>
<mods:nameIdentifier type="orcid">https://orcid.org/0000-0002-5263-2830</mods:nameIdentifier>
<mods:nameIdentifier type="email">maria_ana_tovar@yahoo.com</mods:nameIdentifier>
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<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Galvan-Villa, Cristian Moises</mods:namePart>
<mods:affiliation>Universidad de Guadalajara, Centro Universitario de Ciencias Biologicas y Agropecuarias, Departamento de Ecologia, Zapopan, Mexico</mods:affiliation>
<mods:nameIdentifier type="orcid">https://orcid.org/0000-0003-1927-2500</mods:nameIdentifier>
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<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Rios-Jara, Eduardo</mods:namePart>
<mods:affiliation>Universidad de Guadalajara, Centro Universitario de Ciencias Biologicas y Agropecuarias, Departamento de Ecologia, Zapopan, Mexico</mods:affiliation>
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<mods:titleInfo>
<mods:title>Biodiversity Data Journal</mods:title>
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<mods:date>2020</mods:date>
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<mods:number>8</mods:number>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/BDJ.8.e57572</mods:identifier>
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<mods:identifier type="Pensoft-UUID">9627C5A06E285DBFB389A57DFEE8433F</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:94724949B94A574AA5A67863088715EC" httpUri="http://treatment.plazi.org/id/94724949B94A574AA5A67863088715EC" lastPageNumber="57572" pageId="0" pageNumber="57572">
<subSubSection pageId="0" pageNumber="57572" type="nomenclature">
<paragraph pageId="0" pageNumber="57572">
<taxonomicName LSID="94724949-B94A-574A-A5A6-7863088715EC" authority="(Moore, 1923)" baseAuthorityName="Moore" baseAuthorityYear="1923" class="Polychaeta" family="Sabellidae" genus="Acromegalomma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acromegalomma circumspectum" order="Sabellida" pageId="0" pageNumber="57572" phylum="Annelida" rank="species" species="circumspectum">Acromegalomma circumspectum (Moore, 1923)</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="57572" type="reference_group">
<paragraph pageId="0" pageNumber="57572">
<taxonomicName authorityName="Moore" authorityYear="1923" class="Polychaeta" family="Sabellidae" genus="Branchiomma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Branchiomma circumspectum" order="Sabellida" pageId="0" pageNumber="57572" phylum="Annelida" rank="species" species="circumspectum">Branchiomma circumspectum</taxonomicName>
Moore, 1923 in
<bibRefCitation author="Moore, J. P." journalOrPublisher="Proceedings of the Academy of Natural Sciences of Philadelphia" pageId="0" pageNumber="57572" pagination="179 - 259" refId="B6001661" refString="Moore, J. P., 1923. The polychaetous annelids dredged by the U.S.S. 'Albatross' off the coast of southern California in 1904. IV. Spionidae to Sabellariidae. Proceedings of the Academy of Natural Sciences of Philadelphia 75: 179 - 259" title="The polychaetous annelids dredged by the U. S. S. ' Albatross' off the coast of southern California in 1904. IV. Spionidae to Sabellariidae" volume="75" year="1923">
<emphasis italics="true" pageId="0" pageNumber="57572">Moore 1923</emphasis>
</bibRefCitation>
: 239-241, pl. 18, figs. 41-42.
</paragraph>
<paragraph pageId="0" pageNumber="57572">
<taxonomicName baseAuthorityName="Moore" baseAuthorityYear="1923" class="Polychaeta" family="Sabellidae" genus="Megalomma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Megalomma circumspectum" order="Sabellida" pageId="0" pageNumber="57572" phylum="Annelida" rank="species" species="circumspectum">Megalomma circumspectum</taxonomicName>
.-
<bibRefCitation author="Hartman, O." journalOrPublisher="Catalogue of the Polychaetous Annelids of the World. Part 2." pageId="0" pageNumber="57572" refId="B6002327" refString="Hartman, O., 1959. . Catalogue of the Polychaetous Annelids of the World. Part 2. 23" volume="23" year="1959">Hartman 1959</bibRefCitation>
: 550.-
<bibRefCitation author="Hartman, O." journalOrPublisher="Allan Hancock Pacific Expeditions" pageId="0" pageNumber="57572" pagination="1 - 226" refId="B5999738" refString="Hartman, O., 1961. Polychaetous annelids from California. Allan Hancock Pacific Expeditions 25: 1 - 226" title="Polychaetous annelids from California" volume="25" year="1961">Hartman 1961</bibRefCitation>
: 43.-
<bibRefCitation author="Hartman, O." journalOrPublisher="Allan Hancock Foundation, University of Southern California, Los Angeles" pageId="0" pageNumber="57572" refId="B5999756" refString="Hartman, O., 1969. Atlas of the sedentariate polychaetous annelids from California. Allan Hancock Foundation, University of Southern California, Los Angeles" title="Atlas of the sedentariate polychaetous annelids from California" year="1969">Hartman 1969</bibRefCitation>
: 707, figs 1-6.-
<bibRefCitation author="Rioja, E." journalOrPublisher="Anales del Instituto de Biologia, Mexico" pageId="0" pageNumber="57572" pagination="131 - 229" refId="B6002015" refString="Rioja, E., 1962. Estudios Anelidologicos XXVI. Algunos anelidos poliquetos de las costas del Pacifico de Mexico. Anales del Instituto de Biologia, Mexico 33 (1-2): 131 - 229" title="Estudios Anelidologicos XXVI. Algunos anelidos poliquetos de las costas del Pacifico de Mexico" volume="33" year="1962">Rioja 1962</bibRefCitation>
: 213-216, figs 145-148.-
<bibRefCitation author="Fauchald, K" journalOrPublisher="Allan Hancock Monographs Marine Biology" pageId="0" pageNumber="57572" pagination="1 - 575" refId="B5999559" refString="Fauchald, K, 1972. Benthic polychaetous annelids from deep waters off Western Mexico and adjacent areas in the Eastern Pacific Ocean. Allan Hancock Monographs Marine Biology 7: 1 - 575" title="Benthic polychaetous annelids from deep waters off Western Mexico and adjacent areas in the Eastern Pacific Ocean" volume="7" year="1972">Fauchald 1972</bibRefCitation>
: 33.-
<bibRefCitation author="Perkins, T. H." journalOrPublisher="Proceedings of the Biological Society of Washington" pageId="0" pageNumber="57572" pagination="285 - 368" refId="B6001844" refString="Perkins, T. H., 1984. Revision of Demonax Kinberg, Hypsicomus Grube and Notaulax Tauber, with a review of Megalomma Johansson from Florida. Proceedings of the Biological Society of Washington 97: 285 - 368" title="Revision of Demonax Kinberg, Hypsicomus Grube and Notaulax Tauber, with a review of Megalomma Johansson from Florida" volume="97" year="1984">Perkins 1984</bibRefCitation>
: 363.-
<bibRefCitation author="Knight-Jones, P." journalOrPublisher="Bulletin of Marine Science" pageId="0" pageNumber="57572" pagination="313 - 323" refId="B5999861" refString="Knight-Jones, P., 1997. Two new species of Megalomma (Sabellidae) from Sinai and New Zealand with redescriptions of some types and a new genus. Bulletin of Marine Science 60: 313 - 323" title="Two new species of Megalomma (Sabellidae) from Sinai and New Zealand with redescriptions of some types and a new genus" volume="60" year="1997">Knight-Jones 1997</bibRefCitation>
: 314.-
<bibRefCitation author="Hernandez-Alcantara, P." journalOrPublisher="Oceanides" pageId="0" pageNumber="57572" pagination="25 - 38" refId="B5999774" refString="Hernandez-Alcantara, P., Solis-Weiss, V., 1999. Systematics and Distribution of the Polychaetes (Annelida: Polychaeta) from the Sublittoral Zone in the Gulf of California. Oceanides 14 (1): 25 - 38" title="Systematics and Distribution of the Polychaetes (Annelida: Polychaeta) from the Sublittoral Zone in the Gulf of California" volume="14" year="1999">
<normalizedToken originalValue="Hernández-Alcántara">Hernandez-Alcantara</normalizedToken>
and
<normalizedToken originalValue="Solís-Weiss">Solis-Weiss</normalizedToken>
1999
</bibRefCitation>
: 29.-
<bibRefCitation author="Tovar-Hernandez, Maria Ana" journalOrPublisher="Zootaxa" pageId="0" pageNumber="57572" pagination="1 - 71" refId="B6002194" refString="Tovar-Hernandez, Maria Ana, Carrera-Parra, Luis F., 2011. Megalomma Johansson, 1925 (Polychaeta: Sabellidae) from America and other world-wide localities, and phylogenetic relationships within the genus. Zootaxa 2861 (1): 1 - 71" title="Megalomma Johansson, 1925 (Polychaeta: Sabellidae) from America and other world-wide localities, and phylogenetic relationships within the genus" volume="2861" year="2011">
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
and Carrera-Parra 2011
</bibRefCitation>
: 19-24, figs 4A-J, 6A-V, 28A, G, 29A.
</paragraph>
<paragraph pageId="0" pageNumber="57572">
<taxonomicName baseAuthorityName="Moore" baseAuthorityYear="1923" class="Polychaeta" family="Sabellidae" genus="Acromegalomma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acromegalomma circumspectum" order="Sabellida" pageId="0" pageNumber="57572" phylum="Annelida" rank="species" species="circumspectum">Acromegalomma circumspectum</taxonomicName>
.-
<bibRefCitation author="Tovar-Hernandez, Maria Ana" journalOrPublisher="Revista Mexicana de Biodiversidad" pageId="0" pageNumber="57572" pagination=": e 902764" refId="B6002216" refString="Tovar-Hernandez, Maria Ana, Salazar-Silva, Patricia, de Leon-Gonzalez, Jesus Angel, 2019. Lista faunistica comentada de gusanos poliquetos en la bahia de La Paz, Baja California Sur, Mexico (Annelida: Polychaeta) y nuevos registros. Revista Mexicana de Biodiversidad 90: e902764" title="Lista faunistica comentada de gusanos poliquetos en la bahia de La Paz, Baja California Sur, Mexico (Annelida: Polychaeta) y nuevos registros" volume="90" year="2019">
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
et al. 2019
</bibRefCitation>
: 5, fig. 3A-B.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="57572" type="materials_examined">
<paragraph pageId="0" pageNumber="57572">Materials</paragraph>
<paragraph pageId="0" pageNumber="57572">
<materialsCitation collectingDate="2013-6-26" collectingMethod="Scuba dive" collectionCode="UDG, LEMA" collectorName="Beatriz Yanez-Rivera" country="Mexico" latitude="19.533611" location="Canal San Pedro" longLatPrecision="21" longitude="-105.08806" pageId="0" pageNumber="57572" specimenCode="LEMA-PO 160" specimenCount="1" specimenCount-adult="1" typeStatus="Other material">
<emphasis bold="true" pageId="0" pageNumber="57572">Type status:</emphasis>
<typeStatus pageId="0" pageNumber="57572">Other material</typeStatus>
.
<emphasis bold="true" pageId="0" pageNumber="57572">Occurrence:</emphasis>
catalogNumber:
<specimenCode pageId="0" pageNumber="57572">LEMA-PO160</specimenCode>
; recordedBy:
<collectorName pageId="0" pageNumber="57572">
Beatriz
<normalizedToken originalValue="Yáñez-Rivera">Yanez-Rivera</normalizedToken>
</collectorName>
; individualCount:
<specimenCount pageId="0" pageNumber="57572">1</specimenCount>
; lifeStage:
<specimenType pageId="0" pageNumber="57572">Adult</specimenType>
; reproductiveCondition: Ripe;
<emphasis bold="true" pageId="0" pageNumber="57572">Taxon:</emphasis>
phylum: Annelida; class: Polychaeta; order: Sabellida; family: Sabellidae; genus: Acromegalomma;
<emphasis bold="true" pageId="0" pageNumber="57572">Location:</emphasis>
higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; islandGroup: Islas de Chamela; country:
<collectingCountry pageId="0" pageNumber="57572">
<normalizedToken originalValue="México">Mexico</normalizedToken>
</collectingCountry>
; countryCode: MX; stateProvince: Jalisco; municipality: La Huerta; locality:
<location LSID="urn:lsid:plazi:treatment:94724949B94A574AA5A67863088715EC:D14DB52E16CCB29F1B117DE589627952" country="Mexico" latitude="19.533611" longLatPrecision="21" longitude="-105.08806" name="Canal San Pedro" pageId="0" pageNumber="57572">Canal San Pedro</location>
; maximumDepthInMeters: 5; verbatimLatitude:
<geoCoordinate degrees="19" direction="north" minutes="32" orientation="latitude" precision="15" seconds="01" value="19.533611">
19°32
<normalizedToken originalValue="01">'01''</normalizedToken>
N
</geoCoordinate>
; verbatimLongitude:
<geoCoordinate degrees="105" direction="west" minutes="05" orientation="longitude" precision="15" seconds="17" value="-105.08806">
105°05
<normalizedToken originalValue="17">'17''</normalizedToken>
W
</geoCoordinate>
;
<emphasis bold="true" pageId="0" pageNumber="57572">Identification:</emphasis>
identifiedBy:
<determinerName pageId="0" pageNumber="57572">
<normalizedToken originalValue="María">Maria</normalizedToken>
Ana
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
</determinerName>
;
<emphasis bold="true" pageId="0" pageNumber="57572">Event:</emphasis>
samplingProtocol:
<collectingMethod pageId="0" pageNumber="57572">Scuba dive</collectingMethod>
; eventDate:
<collectingDate pageId="0" pageNumber="57572" value="2013-6-26">June 26, 2013</collectingDate>
; year: 2013; month: 6; day: 26; habitat: On rock; fieldNumber: Site 7;
<emphasis bold="true" pageId="0" pageNumber="57572">Record Level:</emphasis>
institutionID: Universidad de Guadalajara; collectionID:
<normalizedToken originalValue="Colección">Coleccion</normalizedToken>
<normalizedToken originalValue="Biológica">Biologica</normalizedToken>
del Laboratorio de Ecosistemas Marinos y Acuicultura; institutionCode:
<collectionCode pageId="0" pageNumber="57572">UDG</collectionCode>
; collectionCode:
<collectionCode pageId="0" pageNumber="57572">LEMA</collectionCode>
</materialsCitation>
<materialsCitation collectingDate="2013-6-26" collectingMethod="Scuba dive" collectionCode="UDG, LEMA" collectorName="Beatriz Yanez-Rivera" country="Mexico" latitude="19.55611" location="Mexico" longLatPrecision="21" longitude="-105.113884" pageId="0" pageNumber="57572" specimenCode="LEMA-PO 161" specimenCount="3" specimenCount-adult="3" typeStatus="Other material">
<emphasis bold="true" pageId="0" pageNumber="57572">Type status:</emphasis>
<typeStatus pageId="0" pageNumber="57572">Other material</typeStatus>
.
<emphasis bold="true" pageId="0" pageNumber="57572">Occurrence:</emphasis>
catalogNumber:
<specimenCode pageId="0" pageNumber="57572">LEMA-PO161</specimenCode>
; recordedBy:
<collectorName pageId="0" pageNumber="57572">
Beatriz
<normalizedToken originalValue="Yáñez-Rivera">Yanez-Rivera</normalizedToken>
</collectorName>
; individualCount:
<specimenCount pageId="0" pageNumber="57572">3</specimenCount>
; lifeStage:
<specimenType pageId="0" pageNumber="57572">Adult</specimenType>
; reproductiveCondition: Ripe;
<emphasis bold="true" pageId="0" pageNumber="57572">Taxon:</emphasis>
phylum: Annelida; class: Polychaeta; order: Sabellida; family: Sabellidae; genus: Acromegalomma;
<emphasis bold="true" pageId="0" pageNumber="57572">Location:</emphasis>
higherGeographyID: Pacific Ocean; higherGeography: Tropical Eastern Pacific; continent: America; islandGroup: Islas de Chamela; island: Isla Pajarera; country:
<collectingCountry pageId="0" pageNumber="57572">
<normalizedToken originalValue="México">Mexico</normalizedToken>
</collectingCountry>
; countryCode: MX; stateProvince: Jalisco; municipality: La Huerta; maximumDepthInMeters: 7; verbatimLatitude:
<geoCoordinate degrees="19" direction="north" minutes="33" orientation="latitude" precision="15" seconds="22" value="19.55611">
19°33
<normalizedToken originalValue="22">'22''</normalizedToken>
N
</geoCoordinate>
; verbatimLongitude:
<geoCoordinate degrees="105" direction="west" minutes="06" orientation="longitude" precision="15" seconds="50" value="-105.113884">
105°06
<normalizedToken originalValue="50">'50''</normalizedToken>
W
</geoCoordinate>
;
<emphasis bold="true" pageId="0" pageNumber="57572">Identification:</emphasis>
identifiedBy:
<determinerName pageId="0" pageNumber="57572">
<normalizedToken originalValue="María">Maria</normalizedToken>
Ana
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
</determinerName>
;
<emphasis bold="true" pageId="0" pageNumber="57572">Event:</emphasis>
samplingProtocol:
<collectingMethod pageId="0" pageNumber="57572">Scuba dive</collectingMethod>
; eventDate:
<collectingDate pageId="0" pageNumber="57572" value="2013-6-26">June 26, 2013</collectingDate>
; year: 2013; month: 6; day: 26; habitat: On rock and coral; fieldNumber: Site 21;
<emphasis bold="true" pageId="0" pageNumber="57572">Record Level:</emphasis>
language: Spanish; institutionID: Universidad de Guadalajara; collectionID:
<normalizedToken originalValue="Colección">Coleccion</normalizedToken>
<normalizedToken originalValue="Biológica">Biologica</normalizedToken>
del Laboratorio de Ecosistemas Marinos y Acuicultura; institutionCode:
<collectionCode pageId="0" pageNumber="57572">UDG</collectionCode>
; collectionCode:
<collectionCode pageId="0" pageNumber="57572">LEMA</collectionCode>
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="57572" type="description">
<paragraph pageId="0" pageNumber="57572">Description</paragraph>
<paragraph pageId="0" pageNumber="57572">
Complete specimens 10-19 mm long, 0.8-1.3 mm wide with 8 thoracic chaetigers and 42-61 abdominal chaetigers. Radiolar crown with 13-16 pairs of radioles. Radioles with subdistal eyes in most radioles, spherical. Those from dorsal-most radioles are the largest (Fig.
<figureCitation captionStart="Figure 9" captionStartId="F5999083" captionText="Figure 9. Acromegalomma circumspectum (Moore, 1923). A) Radiolar crown, dorsal view, B) compound radiolar eyes, C 1) eye from dorsal-most radiole showing their ommatidia, C 2) ocular spot from ventral-most radiole, D) thorax and anterior abdomen anterior, ventral view (crown removed), E) thorax, dorsal view (crown removed). Scale bars: A, D-E) 4 mm, B) 0.5 mm, C 1 - C 2) 0.3 mm." figureDoi="10.3897/BDJ.8.e57572.figure9" httpUri="https://binary.pensoft.net/fig/437496" pageId="0" pageNumber="57572">9</figureCitation>
A-C1), then gradually decreasing their size towards lateral and some ventral radioles (Fig.
<figureCitation captionStart="Figure 9" captionStartId="F5999083" captionText="Figure 9. Acromegalomma circumspectum (Moore, 1923). A) Radiolar crown, dorsal view, B) compound radiolar eyes, C 1) eye from dorsal-most radiole showing their ommatidia, C 2) ocular spot from ventral-most radiole, D) thorax and anterior abdomen anterior, ventral view (crown removed), E) thorax, dorsal view (crown removed). Scale bars: A, D-E) 4 mm, B) 0.5 mm, C 1 - C 2) 0.3 mm." figureDoi="10.3897/BDJ.8.e57572.figure9" httpUri="https://binary.pensoft.net/fig/437496" pageId="0" pageNumber="57572">9</figureCitation>
A-B). Ventral-most radioles with ocular spots (lacking ommatidia) (Fig.
<figureCitation captionStart="Figure 9" captionStartId="F5999083" captionText="Figure 9. Acromegalomma circumspectum (Moore, 1923). A) Radiolar crown, dorsal view, B) compound radiolar eyes, C 1) eye from dorsal-most radiole showing their ommatidia, C 2) ocular spot from ventral-most radiole, D) thorax and anterior abdomen anterior, ventral view (crown removed), E) thorax, dorsal view (crown removed). Scale bars: A, D-E) 4 mm, B) 0.5 mm, C 1 - C 2) 0.3 mm." figureDoi="10.3897/BDJ.8.e57572.figure9" httpUri="https://binary.pensoft.net/fig/437496" pageId="0" pageNumber="57572">9</figureCitation>
C2). Dorsal margins of collar fused to faecal groove. A triangular keel present, projecting ventrally between dorsal lips (Fig.
<figureCitation captionStart="Figure 9" captionStartId="F5999083" captionText="Figure 9. Acromegalomma circumspectum (Moore, 1923). A) Radiolar crown, dorsal view, B) compound radiolar eyes, C 1) eye from dorsal-most radiole showing their ommatidia, C 2) ocular spot from ventral-most radiole, D) thorax and anterior abdomen anterior, ventral view (crown removed), E) thorax, dorsal view (crown removed). Scale bars: A, D-E) 4 mm, B) 0.5 mm, C 1 - C 2) 0.3 mm." figureDoi="10.3897/BDJ.8.e57572.figure9" httpUri="https://binary.pensoft.net/fig/437496" pageId="0" pageNumber="57572">9</figureCitation>
E). Dorsal pockets present (Fig.
<figureCitation captionStart="Figure 9" captionStartId="F5999083" captionText="Figure 9. Acromegalomma circumspectum (Moore, 1923). A) Radiolar crown, dorsal view, B) compound radiolar eyes, C 1) eye from dorsal-most radiole showing their ommatidia, C 2) ocular spot from ventral-most radiole, D) thorax and anterior abdomen anterior, ventral view (crown removed), E) thorax, dorsal view (crown removed). Scale bars: A, D-E) 4 mm, B) 0.5 mm, C 1 - C 2) 0.3 mm." figureDoi="10.3897/BDJ.8.e57572.figure9" httpUri="https://binary.pensoft.net/fig/437496" pageId="0" pageNumber="57572">9</figureCitation>
E). Length of thoracic tori is the same in all segments and not contacting the lateral margins of ventral shields (Fig.
<figureCitation captionStart="Figure 9" captionStartId="F5999083" captionText="Figure 9. Acromegalomma circumspectum (Moore, 1923). A) Radiolar crown, dorsal view, B) compound radiolar eyes, C 1) eye from dorsal-most radiole showing their ommatidia, C 2) ocular spot from ventral-most radiole, D) thorax and anterior abdomen anterior, ventral view (crown removed), E) thorax, dorsal view (crown removed). Scale bars: A, D-E) 4 mm, B) 0.5 mm, C 1 - C 2) 0.3 mm." figureDoi="10.3897/BDJ.8.e57572.figure9" httpUri="https://binary.pensoft.net/fig/437496" pageId="0" pageNumber="57572">9</figureCitation>
D).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="57572" type="taxon discussion">
<paragraph pageId="0" pageNumber="57572">Taxon discussion</paragraph>
<paragraph pageId="0" pageNumber="57572">
Widely reported in the Gulf of California and Nayarit (
<bibRefCitation author="Tovar-Hernandez, Maria Ana" journalOrPublisher="Zootaxa" pageId="0" pageNumber="57572" pagination="1 - 71" refId="B6002194" refString="Tovar-Hernandez, Maria Ana, Carrera-Parra, Luis F., 2011. Megalomma Johansson, 1925 (Polychaeta: Sabellidae) from America and other world-wide localities, and phylogenetic relationships within the genus. Zootaxa 2861 (1): 1 - 71" title="Megalomma Johansson, 1925 (Polychaeta: Sabellidae) from America and other world-wide localities, and phylogenetic relationships within the genus" volume="2861" year="2011">
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
and Carrera-Parra 2011
</bibRefCitation>
), this worm has been found being parasitised by
<taxonomicName baseAuthorityName="Green" baseAuthorityYear="1961" class="Hexanauplia" family="Gastrodelphyidae" genus="Gastrodelphys" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Gastrodelphys dalesi" order="Cyclopoida" pageId="0" pageNumber="57572" phylum="Arthropoda" rank="species" species="dalesi">
<emphasis italics="true" pageId="0" pageNumber="57572">Gastrodelphys dalesi</emphasis>
</taxonomicName>
, a cyclopoid copepod attached to the radioles, the inner base of the radiolar crown, dorsal lips and attached to the dorsal pockets of collar (
<bibRefCitation author="Gomez, S." journalOrPublisher="Contribuciones al Estudio de los Crustaceos del Pacifico Este" pageId="0" pageNumber="57572" pagination="51 - 54" refId="B5999670" refString="Gomez, S., Tovar-Hernandez, M. A., 2008. First record of the copepod Gastrodelphys dalesi (Green) in the sabellid polychaete Megalomma circumspectum. Contribuciones al Estudio de los Crustaceos del Pacifico Este 5 (1): 51 - 54" title="First record of the copepod Gastrodelphys dalesi (Green) in the sabellid polychaete Megalomma circumspectum" volume="5" year="2008">
<normalizedToken originalValue="Gómez">Gomez</normalizedToken>
and
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
2008
</bibRefCitation>
). A full description and illustrations are available in the revision by
<bibRefCitation author="Tovar-Hernandez, Maria Ana" journalOrPublisher="Zootaxa" pageId="0" pageNumber="57572" pagination="1 - 71" refId="B6002194" refString="Tovar-Hernandez, Maria Ana, Carrera-Parra, Luis F., 2011. Megalomma Johansson, 1925 (Polychaeta: Sabellidae) from America and other world-wide localities, and phylogenetic relationships within the genus. Zootaxa 2861 (1): 1 - 71" title="Megalomma Johansson, 1925 (Polychaeta: Sabellidae) from America and other world-wide localities, and phylogenetic relationships within the genus" volume="2861" year="2011">
<normalizedToken originalValue="Tovar-Hernández">Tovar-Hernandez</normalizedToken>
and Carrera-Parra (2011)
</bibRefCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>