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<mods:title id="042175C88927736C29766FC01B7AF1A6">Capitellidae (Annelida) from the Brazilian Continental Margin (SW Atlantic): new occurrences of three genera and description of new species</mods:title>
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<treatment id="8875D72AFFFA893EFF6588C0560BFE73" ID-DOI="http://doi.org/10.5281/zenodo.6316695" ID-GBIF-Taxon="194285598" ID-Zenodo-Dep="6316695" LSID="urn:lsid:plazi:treatment:8875D72AFFFA893EFF6588C0560BFE73" httpUri="http://treatment.plazi.org/id/8875D72AFFFA893EFF6588C0560BFE73" lastPageId="4" lastPageNumber="92" pageId="3" pageNumber="92">
<subSubSection id="48C635B7FFFA8939FF6588C057F5FB3C" box="[151,699,1155,1182]" pageId="3" pageNumber="92" type="nomenclature">
<paragraph id="0063663CFFFA8939FF6588C057F5FB3C" blockId="3.[151,699,1155,1182]" box="[151,699,1155,1182]" pageId="3" pageNumber="92">
<heading id="5B2BD150FFFA8939FF6588C057F5FB3C" bold="true" box="[151,699,1155,1182]" fontSize="11" level="1" pageId="3" pageNumber="92" reason="1">
<emphasis id="32A8BA2EFFFA8939FF6588C057F5FB3C" bold="true" box="[151,699,1155,1182]" pageId="3" pageNumber="92">
Genus
<taxonomicName id="C7DC1DBFFFFA8939FF1C88C75775FB3C" ID-CoL="84Q2J" authority="Eisig, 1887" authorityName="Eisig" authorityYear="1887" box="[238,571,1155,1182]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="genus">
<emphasis id="32A8BA2EFFFA8939FF1C88C754E5FB3C" bold="true" box="[238,427,1155,1182]" italics="true" pageId="3" pageNumber="92">Mastobranchus</emphasis>
<bibRefCitation id="644D1BCDFFFA8939FE4188C05775FB3C" author="Eisig, H." box="[435,571,1156,1182]" pageId="3" pageNumber="92" pagination="1 - 906" refId="ref14176" refString="Eisig, H. (1887) Monographie der Capitelliden des Golfes von Neapel und der angrenzenden meeres abschnitte nebst untersuchungen zur vergleichenden anatomie und physiologie. Fauna und Flora des Golfes von Neapel und der angrenzenden Meeres-Abschnitte, 16, 1 - 906. https: // doi. org / 10.5962 / bhl. title. 11542" type="journal article" year="1887">Eisig, 1887</bibRefCitation>
</taxonomicName>
, amended
</emphasis>
</heading>
</paragraph>
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<subSubSection id="48C635B7FFFA8939FF65888D5768FA8B" pageId="3" pageNumber="92" type="materials_examined">
<paragraph id="0063663CFFFA8939FF65888D5021FB42" blockId="3.[151,1391,1224,1249]" box="[151,1391,1224,1249]" pageId="3" pageNumber="92">
<typeStatus id="DF67D89EFFFA8939FF65888D5587FB43" box="[151,201,1225,1249]" pageId="3" pageNumber="92">Type</typeStatus>
species:
<taxonomicName id="C7DC1DBFFFFA8939FED4888C5642FB42" authority="Eisig, 1887: 831 - 835" authorityName="Eisig" authorityPageNumber="831 - 835" authorityYear="1887" box="[294,780,1224,1249]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="trinchesii">
<emphasis id="32A8BA2EFFFA8939FED4888C5764FB42" box="[294,554,1224,1248]" italics="true" pageId="3" pageNumber="92">Mastobranchus trinchesii</emphasis>
<bibRefCitation id="644D1BCDFFFA8939FDC2888C5642FB42" author="Eisig, H." box="[560,780,1224,1249]" pageId="3" pageNumber="92" pagination="1 - 906" refId="ref14176" refString="Eisig, H. (1887) Monographie der Capitelliden des Golfes von Neapel und der angrenzenden meeres abschnitte nebst untersuchungen zur vergleichenden anatomie und physiologie. Fauna und Flora des Golfes von Neapel und der angrenzenden Meeres-Abschnitte, 16, 1 - 906. https: // doi. org / 10.5962 / bhl. title. 11542" type="journal article" year="1887">Eisig, 1887: 831835</bibRefCitation>
</taxonomicName>
, pl. 1, fig. 3, pl. 2426, figs 911, 1316, pl. 34, figs 2426.
</paragraph>
<paragraph id="0063663CFFFA8939FF65894B5768FA8B" blockId="3.[151,1437,1295,2041]" box="[151,550,1295,1321]" pageId="3" pageNumber="92">
<materialsCitation id="B0B46C61FFFA8939FF65894B576CFA8B" ID-GBIF-Occurrence="3736046353" box="[151,546,1295,1321]" country="Italy" location="Gulf of Naples" pageId="3" pageNumber="92" specimenCount="1" typeStatus="holotype">
<typeStatus id="DF67D89EFFFA8939FF65894B5581FA8B" box="[151,207,1295,1321]" pageId="3" pageNumber="92">Type</typeStatus>
locality:
<location id="050330E7FFFA8939FECB894B54ACFA8B" LSID="urn:lsid:plazi:treatment:8875D72AFFFA893EFF6588C0560BFE73:050330E7FFFA8939FECB894B54ACFA8B" box="[313,482,1295,1321]" country="Italy" name="Gulf of Naples" pageId="3" pageNumber="92">Gulf of Naples</location>
,
<collectingCountry id="78CB26ACFFFA8939FE1F894B576CFA8B" box="[493,546,1295,1321]" name="Italy" pageId="3" pageNumber="92">Italy</collectingCountry>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="48C635B7FFFA8939FF3589765583F9CF" pageId="3" pageNumber="92" type="diagnosis">
<paragraph id="0063663CFFFA8939FF3589765583F9CF" blockId="3.[151,1437,1295,2041]" pageId="3" pageNumber="92">
<emphasis id="32A8BA2EFFFA8939FF35897654EDFAEE" bold="true" box="[199,419,1330,1356]" pageId="3" pageNumber="92">Generic diagnosis.</emphasis>
(amended after
<bibRefCitation id="644D1BCDFFFA8939FDAB89775635FAEF" author="Magalhaes, W. F. &amp; Blake, J. A." box="[601,891,1331,1357]" pageId="3" pageNumber="92" pagination="1 - 465" refId="ref15324" refString="Magalhaes, W. F. &amp; Blake, J. A. (2020) 7.6. 4 Capitellidae Grube, 1862. pp. 349 - 403, In: Purschke, G., Boggemann, M. &amp; Westheide, W. (Eds.), Handbook of Zoology. Annelida, 2 (Pleistoannelida, Sedentaria II), pp. 1 - 465. https: // doi. org / 10.1515 / 9783110291681 - 011" type="journal article" year="2020">Magalhães &amp; Blake 2020</bibRefCitation>
). Prostomium conical, palpode present; eyespots may be present in multiple spots; nuchal organs present. Peristomium clearly distinct from prostomium; achaetous segment may be present. First chaetiger uniramous or biramous.
<emphasis id="32A8BA2EFFFA8939FC9E893F51D6FA37" box="[876,1176,1403,1429]" italics="true" pageId="3" pageNumber="92">Eleven thoracic chaetigers</emphasis>
. Chaetigers 1 to 9 with only capillaries; chaetigers 10 and 11 with only capillaries or capillaries in noto- and hooks in neuropodia. Thorax clearly demarcated from abdomen.
<emphasis id="32A8BA2EFFFA8939FDDF89875403F9A3" italics="true" pageId="3" pageNumber="92">Variable number of abdominal segments with mixed capillaries and hooks in notopodia (&gt; 9)</emphasis>
; neuropodial abdominal segments with only hooded hooks.
<emphasis id="32A8BA2EFFFA8939FC0E89A350D3F9A3" box="[1020,1437,1511,1537]" italics="true" pageId="3" pageNumber="92">Poorly developed neuropodial lobes.</emphasis>
Branchiae
<emphasis id="32A8BA2EFFFA8939FEE08A4F542AF987" box="[274,356,1547,1573]" italics="true" pageId="3" pageNumber="92">may be</emphasis>
present; when present, retractile,
<emphasis id="32A8BA2EFFFA8939FD188A4F562DF987" box="[746,867,1547,1573]" italics="true" pageId="3" pageNumber="92">bifurcated,</emphasis>
digitate, or palmate.
<emphasis id="32A8BA2EFFFA8939FBA88A4F54A4F9EB" italics="true" pageId="3" pageNumber="92">A pair of genital pores from chaetiger 7 up to chaetiger 14</emphasis>
. Lateral organs present on thorax and abdomen. Pygidium adorned with four caudal cirri.
</paragraph>
</subSubSection>
<subSubSection id="48C635B7FFFA893EFF358A33560BFE73" lastPageId="4" lastPageNumber="93" pageId="3" pageNumber="92" type="discussion">
<paragraph id="0063663CFFFA893EFF358A33560BFE73" blockId="3.[151,1437,1295,2041]" lastBlockId="4.[151,1437,151,465]" lastPageId="4" lastPageNumber="93" pageId="3" pageNumber="92">
<emphasis id="32A8BA2EFFFA8939FF358A335475F933" bold="true" box="[199,315,1655,1681]" pageId="3" pageNumber="92">Remarks.</emphasis>
The genus
<taxonomicName id="C7DC1DBFFFFA8939FE308A33573EF933" authorityName="Eisig" authorityYear="1887" box="[450,624,1655,1681]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="genus">
<emphasis id="32A8BA2EFFFA8939FE308A33573EF933" box="[450,624,1655,1681]" italics="true" pageId="3" pageNumber="92">Mastobranchus</emphasis>
</taxonomicName>
is peculiar among capitellids because it includes species having mixed capillaries and hooded hooks on notopodia of abdominal chaetigers. It was originally introduced by
<bibRefCitation id="644D1BCDFFFA8939FAFD8ADF50D2F917" author="Eisig, H." box="[1295,1436,1691,1717]" pageId="3" pageNumber="92" pagination="1 - 906" refId="ref14176" refString="Eisig, H. (1887) Monographie der Capitelliden des Golfes von Neapel und der angrenzenden meeres abschnitte nebst untersuchungen zur vergleichenden anatomie und physiologie. Fauna und Flora des Golfes von Neapel und der angrenzenden Meeres-Abschnitte, 16, 1 - 906. https: // doi. org / 10.5962 / bhl. title. 11542" type="journal article" year="1887">Eisig (1887)</bibRefCitation>
with the description of
<taxonomicName id="C7DC1DBFFFFA8939FE698AFB5765F97B" authorityName="Eisig" authorityYear="1887" box="[411,555,1727,1753]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="trinchesii">
<emphasis id="32A8BA2EFFFA8939FE698AFB5765F97B" box="[411,555,1727,1753]" italics="true" pageId="3" pageNumber="92">M. trinchesii</emphasis>
</taxonomicName>
from the Gulf of Naples,
<collectingCountry id="78CB26ACFFFA8939FCBC8AFB56CCF97B" box="[846,898,1727,1753]" name="Italy" pageId="3" pageNumber="92">Italy</collectingCountry>
, a species having 11 thoracic chaetigers bearing only capillaries, palpode, chaetiger 1 with both noto- and neuropodia, and abdominal chaetigers with capillaries and hooded hooks on notopodia and hooks on neuropodia. In 1921 and 1936,
<taxonomicName id="C7DC1DBFFFFA8939FBEC8B435581F8E7" authority="Southern, 1921" authorityName="Southern" authorityYear="1921" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="indicus">
<emphasis id="32A8BA2EFFFA8939FBEC8B435069F883" box="[1054,1319,1799,1825]" italics="true" pageId="3" pageNumber="92">Mastobranchus indicus</emphasis>
<bibRefCitation id="644D1BCDFFFA8939FAC28B435581F8E7" author="Southern, R." pageId="3" pageNumber="92" pagination="563 - 659" refId="ref16405" refString="Southern, R. (1921) Polychaeta of the Chilka Lake and also of fresh and brackish waters in other parts of India. Memoirs of the Indian Museum, 5 (8), 563 - 659." type="journal article" year="1921">Southern, 1921</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="C7DC1DBFFFFA8939FEF58B6F5755F8E7" authority="Fauvel, 1936" authorityName="Fauvel" authorityYear="1936" box="[263,539,1835,1861]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="dollfusi">
<emphasis id="32A8BA2EFFFA8939FEF58B6F54CFF8E7" box="[263,385,1835,1861]" italics="true" pageId="3" pageNumber="92">M. dollfusi</emphasis>
<bibRefCitation id="644D1BCDFFFA8939FE7A8B6F5755F8E7" author="Fauvel, P." box="[392,539,1835,1861]" pageId="3" pageNumber="92" pagination="1 - 143" refId="ref14282" refString="Fauvel, P. (1936) Contribution a la faune des Annelides Polychetes du Maroc. Memoires de la Societe des Sciences Naturelles du Maroc, 43, 1 - 143." type="journal article" year="1936">Fauvel, 1936</bibRefCitation>
</taxonomicName>
were described, respectively; however,
<taxonomicName id="C7DC1DBFFFFA8939FC2D8B6F5116F8E7" authorityName="Fauvel" authorityYear="1936" box="[991,1112,1835,1861]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="dollfusi">
<emphasis id="32A8BA2EFFFA8939FC2D8B6F5116F8E7" box="[991,1112,1835,1861]" italics="true" pageId="3" pageNumber="92">M. dollfusi</emphasis>
</taxonomicName>
was transferred to the genus
<taxonomicName id="C7DC1DBFFFFA8939FF658B0B5465F8CB" authorityName="Hartman" authorityYear="1947" box="[151,299,1871,1897]" class="Polychaeta" family="Capitellidae" genus="Leiocapitella" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="genus">
<emphasis id="32A8BA2EFFFA8939FF658B0B5465F8CB" box="[151,299,1871,1897]" italics="true" pageId="3" pageNumber="92">Leiocapitella</emphasis>
</taxonomicName>
by
<bibRefCitation id="644D1BCDFFFA8939FEAF8B0B54B0F8C8" author="Bellan, G." box="[349,510,1871,1898]" pageId="3" pageNumber="92" pagination="1 - 371" refId="ref13254" refString="Bellan, G. (1964) Contribution a l'etude systematique, bionomique et ecologique des Annelides polychetes de la Mediterrannee. Recueil des Travaux de la Station Marine d'Endoume, 49 (33), 1 - 371." type="journal article" year="1964">Bellan (1964)</bibRefCitation>
.
<bibRefCitation id="644D1BCDFFFA8939FDFF8B0B57E2F8CB" author="Ewing, R. M." box="[525,684,1871,1897]" pageId="3" pageNumber="92" pagination="792 - 800" refId="ref14235" refString="Ewing, R. M. (1984) Generic revision of Mastobranchus and Peresiella (Capitellidae) with descriptions of two new species from the Gulf of Mexico and Atlantic Ocean. Proceedings of the Biological Society of Washington, 97, 792 - 800." type="journal article" year="1984">Ewing (1984)</bibRefCitation>
revised the genus and both species,
<taxonomicName id="C7DC1DBFFFFA8939FBAD8B0B5193F8CB" authorityName="Fauvel" authorityYear="1936" box="[1119,1245,1871,1897]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="dollfusi">
<emphasis id="32A8BA2EFFFA8939FBAD8B0B5193F8CB" box="[1119,1245,1871,1897]" italics="true" pageId="3" pageNumber="92">M. dollfusi</emphasis>
</taxonomicName>
and
<taxonomicName id="C7DC1DBFFFFA8939FAE98B0B50DBF8CB" authorityName="Southern" authorityYear="1921" box="[1307,1429,1871,1897]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="indicus">
<emphasis id="32A8BA2EFFFA8939FAE98B0B50DBF8CB" box="[1307,1429,1871,1897]" italics="true" pageId="3" pageNumber="92">M. indicus</emphasis>
</taxonomicName>
, were considered
<emphasis id="32A8BA2EFFFA8939FEAE8B3754B5F82F" box="[348,507,1907,1933]" italics="true" pageId="3" pageNumber="92">incertae sedis</emphasis>
because the chaetal formula did not fit that of
<taxonomicName id="C7DC1DBFFFFA8939FBD98B375197F82F" authorityName="Eisig" authorityYear="1887" box="[1067,1241,1907,1933]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="genus">
<emphasis id="32A8BA2EFFFA8939FBD98B375197F82F" box="[1067,1241,1907,1933]" italics="true" pageId="3" pageNumber="92">Mastobranchus</emphasis>
</taxonomicName>
; additionally, he also described a new species from the Gulf of Mexico, Pacific Ocean,
<taxonomicName id="C7DC1DBFFFFA8939FC358BD35117F813" authorityName="Ewing" authorityYear="1984" box="[967,1113,1943,1969]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="variabilis">
<emphasis id="32A8BA2EFFFA8939FC358BD35117F813" box="[967,1113,1943,1969]" italics="true" pageId="3" pageNumber="92">M. variabilis</emphasis>
</taxonomicName>
.
<bibRefCitation id="644D1BCDFFFA8939FB988BD3504DF813" author="Green, K. D." box="[1130,1283,1943,1969]" pageId="3" pageNumber="92" pagination="249 - 343" refId="ref14541" refString="Green, K. D. (2002) Capitellidae (Polychaeta) from the Andaman Sea. Phuket Marine Biological Center, 24, 249 - 343." type="journal article" year="2002">Green (2002)</bibRefCitation>
amended the generic definition to include the presence of an achaetous segment between the peristomium and chaetiger
<quantity id="C724CBD9FFFA8939FA9D8BFF50D2F877" box="[1391,1436,1979,2005]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="3" pageNumber="92" unit="in" value="1.0">1 in</quantity>
<taxonomicName id="C7DC1DBFFFFA8939FF658B9B540BF85B" authorityName="Eisig" authorityYear="1887" box="[151,325,2015,2041]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="genus">
<emphasis id="32A8BA2EFFFA8939FF658B9B540BF85B" box="[151,325,2015,2041]" italics="true" pageId="3" pageNumber="92">Mastobranchus</emphasis>
</taxonomicName>
near
<taxonomicName id="C7DC1DBFFFFA8939FE7E8B9B54FFF85B" authorityName="Gallardo" authorityYear="1968" box="[396,433,2015,2041]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="loii">
<emphasis id="32A8BA2EFFFA8939FE7E8B9B54FFF85B" box="[396,433,2015,2041]" italics="true" pageId="3" pageNumber="92">loii</emphasis>
</taxonomicName>
, and later,
<bibRefCitation id="644D1BCDFFFA8939FDC88B9B5675F85B" author="Tomioka, S. &amp; Yoshida, R. &amp; Hiroshi, K." box="[570,827,2015,2041]" pageId="3" pageNumber="92" pagination="127 - 132" refId="ref16639" refString="Tomioka, S., Yoshida, R. &amp; Hiroshi, K. (2017) Description of Mastobranchus uru sp. nov. (Annelida: Capitellidae) from Iriomote Island, Japan. Species Diversity, 22 (2), 127 - 132. https: // doi. org / 10.12782 / specdiv. 22.127" type="journal article" year="2017">
Tomioka
<emphasis id="32A8BA2EFFFA8939FD5B8B9B57ABF85B" box="[681,741,2015,2041]" italics="true" pageId="3" pageNumber="92">et al.</emphasis>
(2017)
</bibRefCitation>
described the new species
<taxonomicName id="C7DC1DBFFFFA8939FB738B9B519FF85A" authorityName="Tomioka, Yoshida &amp; Kajihara" authorityYear="2017" box="[1153,1233,2015,2040]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="3" pageNumber="92" phylum="Annelida" rank="species" species="uru">
<emphasis id="32A8BA2EFFFA8939FB738B9B519FF85A" box="[1153,1233,2015,2040]" italics="true" pageId="3" pageNumber="92">M. uru</emphasis>
</taxonomicName>
, from
<collectingCountry id="78CB26ACFFFA8939FAD48B9B5027F85B" box="[1318,1385,2015,2041]" name="Japan" pageId="3" pageNumber="92">Japan</collectingCountry>
. So, there are until now four valid species,
<taxonomicName id="C7DC1DBFFFFD893EFDBC8CD356B5FF13" authority="Eisig, 1887" authorityName="Eisig" authorityYear="1887" box="[590,1019,151,177]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="trinchesii">
<emphasis id="32A8BA2EFFFD893EFDBC8CD35621FF13" box="[590,879,151,177]" italics="true" pageId="4" pageNumber="93">Mastobranchus trinchesii</emphasis>
<bibRefCitation id="644D1BCDFFFD893EFC858CD356B5FF13" author="Eisig, H." box="[887,1019,151,177]" pageId="4" pageNumber="93" pagination="1 - 906" refId="ref14176" refString="Eisig, H. (1887) Monographie der Capitelliden des Golfes von Neapel und der angrenzenden meeres abschnitte nebst untersuchungen zur vergleichenden anatomie und physiologie. Fauna und Flora des Golfes von Neapel und der angrenzenden Meeres-Abschnitte, 16, 1 - 906. https: // doi. org / 10.5962 / bhl. title. 11542" type="journal article" year="1887">Eisig, 1887</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="C7DC1DBFFFFD893EFBF58CD350D6FF13" authority="Gallardo, 1968" authorityName="Gallardo" authorityYear="1968" box="[1031,1432,151,177]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="loii">
<emphasis id="32A8BA2EFFFD893EFBF58CD351ADFF13" box="[1031,1251,151,177]" italics="true" pageId="4" pageNumber="93">Mastobranchus loii</emphasis>
<bibRefCitation id="644D1BCDFFFD893EFB1E8CD350D6FF13" author="Gallardo, V. A." box="[1260,1432,151,177]" pageId="4" pageNumber="93" pagination="35 - 279" refId="ref14434" refString="Gallardo, V. A. (1968) Polychaeta from the Bay of Nha Trang, South Viet Nam. Naga Report, 4 (3), 35 - 279." type="journal article" year="1968">Gallardo, 1968</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="C7DC1DBFFFFD893EFF658CFF5701FF77" authority="Ewing, 1984" authorityName="Ewing" authorityYear="1984" box="[151,591,187,213]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="variabilis">
<emphasis id="32A8BA2EFFFD893EFF658CFF54F9FF77" box="[151,439,187,213]" italics="true" pageId="4" pageNumber="93">Mastobranchus variabilis</emphasis>
<bibRefCitation id="644D1BCDFFFD893EFE4C8CFF5701FF77" author="Ewing, R. M." box="[446,591,187,213]" pageId="4" pageNumber="93" pagination="792 - 800" refId="ref14235" refString="Ewing, R. M. (1984) Generic revision of Mastobranchus and Peresiella (Capitellidae) with descriptions of two new species from the Gulf of Mexico and Atlantic Ocean. Proceedings of the Biological Society of Washington, 97, 792 - 800." type="journal article" year="1984">Ewing, 1984</bibRefCitation>
</taxonomicName>
, and
<taxonomicName id="C7DC1DBFFFFD893EFD7B8CFF504CFF77" authority="Tomioka, Yoshida &amp; Kajihara, 2017" authorityName="Tomioka, Yoshida &amp; Kajihara" authorityYear="2017" box="[649,1282,187,213]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="uru">
<emphasis id="32A8BA2EFFFD893EFD7B8CFF562BFF76" box="[649,869,187,213]" italics="true" pageId="4" pageNumber="93">Mastobranchus uru</emphasis>
Tomioka, Yoshida &amp; Kajihara, 2017
</taxonomicName>
. In this paper, we amend the generic diagnosis to correct the number of thoracic chaetiger from “nine or 11” to 11, because the type-material of
<taxonomicName id="C7DC1DBFFFFD893EFEA38D475765FEBF" authorityName="Gallardo" authorityYear="1968" box="[337,555,259,285]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="loii">
<emphasis id="32A8BA2EFFFD893EFEA38D475765FEBF" box="[337,555,259,285]" italics="true" pageId="4" pageNumber="93">Mastobranchus loii</emphasis>
</taxonomicName>
could be analyzed and redescribed. The original description and further papers did not mention that the
<typeStatus id="DF67D89EFFFD893EFE418D63575BFEE3" box="[435,533,295,321]" pageId="4" pageNumber="93" type="holotype">holotype</typeStatus>
was a specimen regenerating its anterior end, that is why the lower number of thoracic chaetigers, but all other features fit the genus diagnosis. Another change on the diagnosis is the number of abdominal chaetigers bearing capillaries and hooded hooks, from “two or more” to “higher than nine” (nine in
<taxonomicName id="C7DC1DBFFFFD893EFF658DD7543CFE0F" authorityName="Gallardo" authorityYear="1968" box="[151,370,403,429]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="loii">
<emphasis id="32A8BA2EFFFD893EFF658DD7543CFE0F" box="[151,370,403,429]" italics="true" pageId="4" pageNumber="93">Mastobranchus loii</emphasis>
</taxonomicName>
). Two abdominal chaetigers with capillaries was a feature of
<taxonomicName id="C7DC1DBFFFFD893EFBDA8DD751D1FE0F" authorityName="Southern" authorityYear="1921" box="[1064,1183,403,429]" class="Polychaeta" family="Capitellidae" genus="Mastobranchus" kingdom="Animalia" pageId="4" pageNumber="93" phylum="Annelida" rank="species" species="indicus">
<emphasis id="32A8BA2EFFFD893EFBDA8DD751D1FE0F" box="[1064,1183,403,429]" italics="true" pageId="4" pageNumber="93">M. indicus</emphasis>
</taxonomicName>
, however, this species is currently considered as
<emphasis id="32A8BA2EFFFD893EFE4E8DF35718FE73" box="[444,598,439,465]" italics="true" pageId="4" pageNumber="93">incertae sedis</emphasis>
sensu
<bibRefCitation id="644D1BCDFFFD893EFD508DF3560EFE73" author="Ewing, R. M." box="[674,832,439,465]" pageId="4" pageNumber="93" pagination="792 - 800" refId="ref14235" refString="Ewing, R. M. (1984) Generic revision of Mastobranchus and Peresiella (Capitellidae) with descriptions of two new species from the Gulf of Mexico and Atlantic Ocean. Proceedings of the Biological Society of Washington, 97, 792 - 800." type="journal article" year="1984">Ewing (1984)</bibRefCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>