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<mods:title id="77AD179FA8305C78B6E6B3980FDD8A48">First records and two new species of sipunculans (Sipuncula) from the Southern Mexican Pacific</mods:title>
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<taxonomicName id="4C634D31D36C803E79614587FDA2669A" ID-CoL="625WD" authorityName="Stephen &amp; Edmonds" authorityYear="1972" box="[380,618,408,434]" class="Phascolosomatidea" family="Phascolosomatidae" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="family">Phascolosomatidae</taxonomicName>
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1. Introvert much longer than twice the trunk length; hooks, if present, with basal spinelets; nephridia usually bilobed .......................................................................................
<taxonomicName id="4C634D31D36C803E7CB445F5FAE5652C" ID-CoL="62CYH" authorityName="Sluiter" authorityYear="1902" box="[1193,1325,490,516]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Apionsoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="genus">
<emphasis id="B917EAA0D36C803E7CB445F5FAE5652C" box="[1193,1325,490,516]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
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........2
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Introvert less than twice trunk length; hooks without basal spinelets; nephridia unilobed ............. ...........................................................................................................................
<taxonomicName id="4C634D31D36C803E7C9D462FFAE46562" ID-CoL="6MXL" authorityName="Leuckart" authorityYear="1828" box="[1152,1324,560,586]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Phascolosoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="genus">
<emphasis id="B917EAA0D36C803E7C9D462FFAE46562" box="[1152,1324,560,586]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
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........4
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2. Body wall muscles divided into separate bands ................................................................................. ...................................................................
<taxonomicName id="4C634D31D36C803E7ACB468AFABE6598" ID-CoL="7QZ53" authority="(Keferstein, 1867)" baseAuthorityName="Keferstein" baseAuthorityYear="1867" box="[726,1398,661,688]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Apionsoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="pectinatum" subGenus="Edmonsius">
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<emphasis id="B917EAA0D36C803E7ACB468AFC976587" bold="true" box="[726,863,661,687]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7B6F468AFC316598" bold="true" box="[882,1017,661,688]" italics="true" pageId="28" pageNumber="105">Edmonsius</emphasis>
)
<emphasis id="B917EAA0D36C803E7C11468AFB5B6587" bold="true" box="[1036,1171,661,687]" italics="true" pageId="28" pageNumber="105">pectinatum</emphasis>
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(
<bibRefCitation id="EFF24B43D36C803E7CB8468AFAA66598" author="Keferstein W." box="[1189,1390,661,688]" pageId="28" pageNumber="105" pagination="44 - 55" refId="ref16137" refString="Keferstein W. 1867. Untersuchungen uber einige amerikanische Sipunculiden. Zeitschrift fur Wissenschaftliche Zoologie 17: 44 - 55." type="journal article" year="1867">Keferstein, 1867</bibRefCitation>
)
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Body wall with continuous muscle layers ........................................
<taxonomicName id="4C634D31D36C803E7C1546A6FAE365FA" ID-CoL="8YQNZ" authority="(Apionsoma)" authorityName="Sluiter" authorityYear="1902" baseAuthorityName="Apionsoma" box="[1032,1323,696,723]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Apionsoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="subGenus" subGenus="Apionsoma">
<emphasis id="B917EAA0D36C803E7C1546A6FB4465FB" box="[1032,1164,697,723]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7C8246A6FAEB65FB" box="[1183,1315,697,723]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
)
</taxonomicName>
........3
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3. Papillae, hooks and tentacles absent ...........
<taxonomicName id="4C634D31D36C803E7AF046E5FABF643C" ID-CoL="7QZ52" authority="Sluiter, 1902" authorityName="Sluiter" authorityYear="1902" box="[749,1399,761,788]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Apionsoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="trichocephalus" subGenus="Apionsoma">
<emphasis id="B917EAA0D36C803E7AF046E5FB1E643C" bold="true" box="[749,1238,761,788]" pageId="28" pageNumber="105">
<emphasis id="B917EAA0D36C803E7AF046E5FCBE643C" bold="true" box="[749,886,762,788]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7B9546E5FBD9643C" bold="true" box="[904,1041,762,788]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
)
<emphasis id="B917EAA0D36C803E7C3E46E6FB1E643C" bold="true" box="[1059,1238,761,788]" italics="true" pageId="28" pageNumber="105">trichocephalus</emphasis>
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<bibRefCitation id="EFF24B43D36C803E7CC246E5FABF643C" author="Sluiter C. P." box="[1247,1399,762,788]" pageId="28" pageNumber="105" pagination="1 - 53" refId="ref17059" refString="Sluiter C. P. 1902. Die Sipunculiden und Echiuriden der Siboga Expedition, nebst Zusammenstellung der ueberdies aus dem indischen Archipel bekannten Arten. Siboga Expeditie 25: 1 - 53. Available from https: // www. biodiversitylibrary. org / page / 2046852 [accessed 4 Mar. 2021]." type="journal article" year="1902">Sluiter, 1902</bibRefCitation>
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Papillae, hooks and tentacles present, 78 basal spinelets ................................................................ ..................................................
<taxonomicName id="4C634D31D36C803E7A44475FFB2F6472" ID-CoL="7WCPR" authority="(Chamberlin, 1920)" authorityName="Silva-Morales &amp; Gómez-Vásquez" authorityYear="2021" baseAuthorityName="Chamberlin" baseAuthorityYear="1920" box="[601,1255,832,859]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Apionsoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="hespera" status="comb. nov." subGenus="Apionsoma">
<emphasis id="B917EAA0D36C803E7A44475FFC3B6473" bold="true" box="[601,1011,832,859]" pageId="28" pageNumber="105">
<emphasis id="B917EAA0D36C803E7A44475FFD2A6472" bold="true" box="[601,738,832,858]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7AEB475FFCB76472" bold="true" box="[758,895,832,858]" italics="true" pageId="28" pageNumber="105">Apionsoma</emphasis>
)
<emphasis id="B917EAA0D36C803E7B89475FFC3B6473" bold="true" box="[916,1011,832,859]" italics="true" pageId="28" pageNumber="105">hespera</emphasis>
</emphasis>
(
<bibRefCitation id="EFF24B43D36C803E7C18475FFB176472" author="Chamberlin R. V." box="[1029,1247,832,858]" pageId="28" pageNumber="105" pagination="30 - 31" refId="ref14093" refString="Chamberlin R. V. 1920. Notes on the sipunculids of Laguna Beach. Journal of Entomology and Zoology 12: 30 - 31." type="journal article" year="1920">Chamberlin, 1920</bibRefCitation>
)
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<taxonomicNameLabel id="A22457DBD36C803E7CEF475FFABF6473" box="[1266,1399,832,859]" pageId="28" pageNumber="105" rank="species">comb. nov.</taxonomicNameLabel>
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<paragraph id="8BDC36B2D36C803E78A0479DFABF64E8" blockId="28.[189,1399,455,1301]" pageId="28" pageNumber="105">
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4. Protuberance of the hook streak less than twice the width of the hook .............................................. ...................................
<taxonomicName id="4C634D31D36C803E79F647BBFB7464E9" ID-CoL="7WCN3" authority="Grube &amp; Orsted" authorityName="Grube &amp; Orsted" box="[491,1212,932,961]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Phascolosoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="puntarenae" subGenus="Phascolosoma">
<emphasis id="B917EAA0D36C803E79F647BBFC3E6497" bold="true" box="[491,1014,932,959]" pageId="28" pageNumber="105">
<emphasis id="B917EAA0D36C803E79F647BBFD516497" bold="true" box="[491,665,932,959]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7AB647BBFC916497" bold="true" box="[683,857,932,959]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
)
<emphasis id="B917EAA0D36C803E7B7647BAFC3E6497" bold="true" box="[875,1014,933,959]" italics="true" pageId="28" pageNumber="105">puntarenae</emphasis>
</emphasis>
Grube &amp; Örsted
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in
<bibRefCitation id="EFF24B43D36C803E7CFE47BAFABF64E8" author="Grube E." box="[1251,1399,933,960]" pageId="28" pageNumber="105" pagination="105 - 120" refId="ref15661" refString="Grube E. 1858. Annulata Orstediana, enumeratio annulatorum, quae in intinere per Indiam occidentalem et Americam centralem annis 1845 - 1848 suspecto legit cl. A. S. Orsted, adjectis speciebus nonnullis a cl. H. Kroyero in itinere ad Americam meriodinalem collectis. V idenskabelige Meddelelser fra dansk naturhistorisk Forening i KJObenhavn 1848: 105 - 120." type="journal article" year="1858">Grube, 1858</bibRefCitation>
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<paragraph id="8BDC36B2D36C803E78DC47D6FABE64CB" blockId="28.[189,1399,455,1301]" box="[193,1398,968,995]" pageId="28" pageNumber="105">
<keyLead id="30929587D36C803E78DC47D6FABE64CB" box="[193,1398,968,995]" pageId="28" pageNumber="105"> Hook without protuberance of the hook streak...............................................................................5</keyLead>
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5. Hook triangle indistinct or absent; preanal papillae not distinct from dome-shaped trunk papillae ...............................................................
<taxonomicName id="4C634D31D36C803E7AA54033FABF636F" ID-CoL="7WCMN" authority="Keferstein, 1866" authorityName="Keferstein" authorityYear="1866" box="[696,1399,1068,1095]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Phascolosoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="agassizii" subGenus="Phascolosoma">
<emphasis id="B917EAA0D36C803E7AA54033FB6D636F" bold="true" box="[696,1189,1068,1095]" pageId="28" pageNumber="105">
<emphasis id="B917EAA0D36C803E7AA54033FCAE636F" bold="true" box="[696,870,1068,1095]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7B664033FBE1636F" bold="true" box="[891,1065,1068,1095]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
)
<emphasis id="B917EAA0D36C803E7C234032FB6D636F" bold="true" box="[1086,1189,1069,1095]" italics="true" pageId="28" pageNumber="105">agassizii</emphasis>
</emphasis>
<bibRefCitation id="EFF24B43D36C803E7CAD4032FABF636F" author="Keferstein W." box="[1200,1399,1069,1095]" pageId="28" pageNumber="105" pagination="215 - 228" refId="ref16107" refString="Keferstein W. 1866. Untersuchungen uber einige amerikanische Sipunculiden. Nachrichten von der koniglichen Gesellschaft der Wissenschaften und der Georg-Augusts Universitat zu Gottigen 14: 215 - 228." type="journal article" year="1866">Keferstein, 1866</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
<paragraph id="8BDC36B2D36C803E78DC404FFABE6342" blockId="28.[189,1399,455,1301]" box="[193,1398,1104,1130]" pageId="28" pageNumber="105">
<keyLead id="30929587D36C803E78DC404FFABE6342" box="[193,1398,1104,1130]" pageId="28" pageNumber="105"> Hook triangle well-defined; preanal papillae distinct......................................................................6</keyLead>
</paragraph>
</keyStep>
<keyStep id="30972E17D36C803E78A0408EFABF623D" pageId="28" pageNumber="105">
<paragraph id="8BDC36B2D36C803E78A0408EFABE63E7" blockId="28.[189,1399,455,1301]" pageId="28" pageNumber="105">
<keyLead id="30929587D36C803E78A0408EFABE63E7" pageId="28" pageNumber="105">
6. Preanal papillae dome- to mammiform-shaped at the base of the introvert ....................................... ................................
<taxonomicName id="4C634D31D36C803E79C840ABFC6663E7" ID-CoL="7WFZB" box="[469,942,1204,1231]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Phascolosoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="scolops" subGenus="Phascolosoma">
<emphasis id="B917EAA0D36C803E79C840ABFC6663E7" bold="true" box="[469,942,1204,1231]" pageId="28" pageNumber="105">
<emphasis id="B917EAA0D36C803E79C840ABFD4B63E7" bold="true" box="[469,643,1204,1231]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7A8840ABFC8B63E7" bold="true" box="[661,835,1204,1231]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
)
<emphasis id="B917EAA0D36C803E7B4B40ABFC6663E7" bold="true" box="[854,942,1204,1231]" italics="true" pageId="28" pageNumber="105">scolops</emphasis>
</emphasis>
</taxonomicName>
(Selenka &amp; de Man in
<bibRefCitation id="EFF24B43D36C803E7CD840ABFAA663E7" author="Selenka E." box="[1221,1390,1204,1231]" pageId="28" pageNumber="105" refId="ref16903" refString="Selenka E. 1883. Die Sipunculiden, eine systematische Monographie. Reisen in Archipel Phillippinen von Dr. C. Semper. C. W. Kreidel, Wiesbaden." type="book" year="1883">Selenka, 1883</bibRefCitation>
)
</keyLead>
</paragraph>
<paragraph id="8BDC36B2D36C803E78DC40C7FABF623D" blockId="28.[189,1399,455,1301]" pageId="28" pageNumber="105">
<keyLead id="30929587D36C803E78DC40C7FABF623D" pageId="28" pageNumber="105">
Preanal papillae conical, posteriorly directed on the dorsal base of the introvert ......................... .....................................................................
<taxonomicName id="4C634D31D36C803E7AF940E5FABF623D" ID-CoL="7WCQV" authority="Baird, 1868" authorityName="Baird" authorityYear="1868" box="[740,1399,1274,1301]" class="Phascolosomatidea" family="Phascolosomatidae" genus="Phascolosoma" kingdom="Animalia" order="Phascolosomatiformes" pageId="28" pageNumber="105" phylum="Sipuncula" rank="species" species="perlucens" subGenus="Phascolosoma">
<emphasis id="B917EAA0D36C803E7AF940E5FB16623D" bold="true" box="[740,1246,1274,1301]" pageId="28" pageNumber="105">
<emphasis id="B917EAA0D36C803E7AF940E5FC5A623D" bold="true" box="[740,914,1274,1301]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
(
<emphasis id="B917EAA0D36C803E7BBA40E5FB9D623D" bold="true" box="[935,1109,1274,1301]" italics="true" pageId="28" pageNumber="105">Phascolosoma</emphasis>
)
<emphasis id="B917EAA0D36C803E7C7440E5FB16623D" bold="true" box="[1129,1246,1274,1301]" italics="true" pageId="28" pageNumber="105">perlucens</emphasis>
</emphasis>
<bibRefCitation id="EFF24B43D36C803E7CF440E4FABF623D" author="Baird W. B." box="[1257,1399,1275,1301]" pageId="28" pageNumber="105" pagination="77 - 114" refId="ref13755" refString="Baird W. B. 1868. Monograph of the species of worms belonging to the subclass Gephyrea. Proceedings of the Zoological Society of London 1868: 77 - 114." type="journal article" year="1868">Baird, 1868</bibRefCitation>
</taxonomicName>
</keyLead>
</paragraph>
</keyStep>
</key>
</subSubSection>
</treatment>
</document>