241 lines
27 KiB
XML
241 lines
27 KiB
XML
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<mods:title id="168F07BD266346005279F31C23C3EAE3">Revision of Autolytinae (Syllidae: Polychaeta).</mods:title>
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<mods:namePart id="43E11557D74735F66D9D64437C993F84">Nygren, Arne</mods:namePart>
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<mods:title id="A4FB74422C22E6D0B9124DDB7393108B">Zootaxa</mods:title>
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<mods:part id="88780DC881068BA171F4832B4BEF0B1F">
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<mods:date id="599385F234E8674094319482970B8694">2004</mods:date>
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<mods:number id="88AC33642E7A4D4DED51AC65F1A903B0">680</mods:number>
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<mods:identifier id="66664B31ED01119D4285DEE1D03EB88A" type="DOI">10.5281/zenodo.157809</mods:identifier>
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<mods:identifier id="961BFBB3A20C3A9E8617B86D8C98DCA4" type="ISBN">1-877354-52-X</mods:identifier>
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<treatment id="03CDB626CCCD4E9CFEE87E458CE5824D" ID-DOI="http://doi.org/10.5281/zenodo.6273290" ID-GBIF-Taxon="119592357" ID-Zenodo-Dep="6273290" LSID="urn:lsid:plazi:treatment:03CDB626CCCD4E9CFEE87E458CE5824D" httpUri="http://treatment.plazi.org/id/03CDB626CCCD4E9CFEE87E458CE5824D" lastPageId="188" lastPageNumber="189" pageId="186" pageNumber="187">
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<subSubSection id="C37E54BBCCCD4E9AFEE87E458B7B83E5" box="[264,869,884,910]" pageId="186" pageNumber="187" type="nomenclature">
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<paragraph id="8BDB0730CCCD4E9AFEE87E458B7B83E5" blockId="186.[264,869,884,910]" box="[264,869,884,910]" pageId="186" pageNumber="187">
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<heading id="D093B05CCCCD4E9AFEE87E458B7B83E5" bold="true" box="[264,869,884,910]" fontSize="11" level="5" pageId="186" pageNumber="187" reason="2">
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<emphasis id="B910DB22CCCD4E9AFEE87E458B7B83E5" bold="true" box="[264,869,884,910]" pageId="186" pageNumber="187">
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<taxonomicName id="4C647CB3CCCD4E9AFEE87E458AA383E5" authority="Treadwell, 1943" authorityName="Treadwell" authorityYear="1943" box="[264,701,884,910]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="186" pageNumber="187" phylum="Annelida" rank="species" species="pacificus">
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<emphasis id="B910DB22CCCD4E9AFEE87E4589EE83E5" bold="true" box="[264,496,884,910]" italics="true" pageId="186" pageNumber="187">Autolytus pacificus</emphasis>
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<bibRefCitation id="EFF57AC1CCCD4E9AFE177E458AA383E5" author="Treadwell" box="[503,701,884,910]" pageId="186" pageNumber="187" refString="Treadwell, A. L. (1943) Biological results of the last cruise of the Carnegie. 3. Polychaetous annelids. Carnegie Institute of Washington Publication, 55, 30 - 59." type="journal article" year="1943">Treadwell, 1943</bibRefCitation>
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</taxonomicName>
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(Fig. 95A–D)
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C37E54BBCCCD4E9AFEE87E8E8B6E83BE" box="[264,880,958,982]" pageId="186" pageNumber="187" type="reference_group">
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<paragraph id="8BDB0730CCCD4E9AFEE87E8E8B6E83BE" blockId="186.[264,880,958,982]" box="[264,880,958,982]" pageId="186" pageNumber="187">
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<treatmentCitationGroup id="AB74201ECCCD4E9AFEE87E8E8B6E83BE" box="[264,880,958,982]" pageId="186" pageNumber="187">
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<taxonomicName id="4C647CB3CCCD4E9AFEE87E8E8AAD83BE" authority="Treadwell, 1943: 40" authorityName="Treadwell" authorityPageNumber="40" authorityYear="1943" box="[264,691,958,982]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="186" pageNumber="187" phylum="Annelida" rank="species" species="pacificus">
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<emphasis id="B910DB22CCCD4E9AFEE87E8E89CD83BD" box="[264,467,959,982]" italics="true" pageId="186" pageNumber="187">Autolytus pacificus</emphasis>
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<treatmentCitation id="0AC52121CCCD4E9AFE3B7E8F8AAD83BE" author="Treadwell" box="[475,691,958,981]" page="40" pageId="186" pageNumber="187" year="1943">
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<bibRefCitation id="EFF57AC1CCCD4E9AFE3B7E8F8A9283BE" author="Treadwell" box="[475,652,958,981]" pageId="186" pageNumber="187" refString="Treadwell, A. L. (1943) Biological results of the last cruise of the Carnegie. 3. Polychaetous annelids. Carnegie Institute of Washington Publication, 55, 30 - 59." type="journal article" year="1943">Treadwell, 1943</bibRefCitation>
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: 40
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</treatmentCitation>
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</taxonomicName>
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, pl. 2, fig. 28–30.
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection id="C37E54BBCCCD4E9AFEE879388C888448" box="[264,1174,1033,1059]" pageId="186" pageNumber="187" type="materials_examined">
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<paragraph id="8BDB0730CCCD4E9AFEE879388C888448" blockId="186.[264,1324,1033,1899]" box="[264,1174,1033,1059]" pageId="186" pageNumber="187">
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<emphasis id="B910DB22CCCD4E9AFEE8793889EB8448" bold="true" box="[264,501,1033,1059]" pageId="186" pageNumber="187">Material examined</emphasis>
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.
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<emphasis id="B910DB22CCCD4E9AFDE479388A478448" bold="true" box="[516,601,1033,1059]" pageId="186" pageNumber="187">
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<collectingCountry id="F37347A0CCCD4E9AFDE479388A478448" box="[516,601,1033,1059]" name="Samoa" pageId="186" pageNumber="187">Samoa</collectingCountry>
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</emphasis>
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: 3
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<typeStatus id="54DFB992CCCD4E9AFD9E79388AFA8448" box="[638,740,1033,1059]" pageId="186" pageNumber="187" type="syntype">syntypes</typeStatus>
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<collectionCode id="ED759FF5CCCD4E9AFD0B79388B5E8448" LSID="urn:lsid:biocol.org:col:34871" box="[747,832,1033,1059]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="186" pageNumber="187">USNM</collectionCode>
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20089, at surface,
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<date id="FFDA21F0CCCD4E9AFBFF79388C8C8448" box="[1055,1170,1033,1059]" pageId="186" pageNumber="187" value="1929-04">Apr 1929</date>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37E54BBCCCD4E9AFED879008AC58700" pageId="186" pageNumber="187" type="description">
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<paragraph id="8BDB0730CCCD4E9AFED87900896B84A8" blockId="186.[264,1324,1033,1899]" pageId="186" pageNumber="187">
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<emphasis id="B910DB22CCCD4E9AFED8790089D78420" bold="true" box="[312,457,1073,1099]" pageId="186" pageNumber="187">Description</emphasis>
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. Length
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<quantity id="4C9CAAD5CCCD4E9AFDD579008ADA8420" box="[565,708,1073,1099]" metricMagnitude="-3" metricUnit="m" metricValue="1.95" metricValueMax="2.2" metricValueMin="1.7" pageId="186" pageNumber="187" unit="mm" value="1.95" valueMax="2.2" valueMin="1.7">1.7–2.2 mm</quantity>
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for 6+(10–13)+(4–5) chaetigers, width
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<quantity id="4C9CAAD5CCCD4E9AFB4079008D148420" box="[1184,1290,1073,1099]" metricMagnitude="-4" metricUnit="m" metricValue="2.5" pageId="186" pageNumber="187" unit="mm" value="0.25">0.25 mm</quantity>
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in region a excluding parapodial lobes, width
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<quantity id="4C9CAAD5CCCD4E9AFCE779688B7C8418" box="[775,866,1113,1139]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="186" pageNumber="187" unit="mm" value="0.4">0.4 mm</quantity>
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in region b including parapodial lobes (Fig. 95A). Preserved material yellowish, without colour markings. Ciliation not possible to assess.
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</paragraph>
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<paragraph id="8BDB0730CCCD4E9AFED879E08CA88550" blockId="186.[264,1324,1033,1899]" pageId="186" pageNumber="187">Prostomium rounded rectangular, wider than long, anterior margin slightly concave. Four eyes, with lenses, laterally positioned on ventral and dorsal side of prostomium, ventral pair larger (Fig. 95A). Palps absent. Nuchal epaulettes not observed, absent?</paragraph>
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<paragraph id="8BDB0730CCCD4E9AFED8787889958668" blockId="186.[264,1324,1033,1899]" pageId="186" pageNumber="187">Median antenna, inserted on front margin of prostomium, slightly behind lateral antennae, reaching chaetiger 3. Lateral antennae, length 2/3 of median antenna. One pair of small tentacular cirri seen on one individual, or these may represent the first dorsal cirri. Antennae cylindrical to slightly clavate, thick. Achaetous knobs absent. Dorsal cirri absent (Fig. 95A).</paragraph>
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<paragraph id="8BDB0730CCCD4E9AFED87B208C828770" blockId="186.[264,1324,1033,1899]" pageId="186" pageNumber="187">
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Parapodia in region a, and c with rounded neuropodial lobes of very small size; parapodia in region b larger with additional notopodial lobes. Neuropodial aciculae numbering
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<quantity id="4C9CAAD5CCCD4E9AFEBB7B5089B98610" box="[347,423,1633,1659]" metricMagnitude="-2" metricUnit="m" metricValue="3.81" metricValueMax="5.08" metricValueMin="2.54" pageId="186" pageNumber="187" unit="in" value="1.5" valueMax="2.0" valueMin="1.0">1–2 in</quantity>
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all chaetigers; 3–4 anterolateral and 5–6 posteroventral notopodial aciculae in region b. Neuropodial chaetal fascicle with 4–5 simple knoblike chaetae (Fig. 95C, D), bifurcated distally, teeth unequal; in addition 1 hooklike bidentate chaetae (Fig. 95B), with small distal tooth, present in most chaetigers in region b. Notopodial chaetal fascicle with 10–15 swimming setae, length 1/2 of body width. Anal cirri lost, absent?
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</paragraph>
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<paragraph id="8BDB0730CCCD4E9AFED87A188AC58700" blockId="186.[264,1324,1033,1899]" pageId="186" pageNumber="187">
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||
<emphasis id="B910DB22CCCD4E9AFED87A188A428728" bold="true" box="[312,604,1833,1859]" pageId="186" pageNumber="187">Additional information</emphasis>
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. According to
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<bibRefCitation id="EFF57AC1CCCD4E9AFCF17A188BFE8728" author="Treadwell" box="[785,992,1833,1859]" pageId="186" pageNumber="187" refString="Treadwell, A. L. (1943) Biological results of the last cruise of the Carnegie. 3. Polychaetous annelids. Carnegie Institute of Washington Publication, 55, 30 - 59." type="journal article" year="1943">Treadwell (1943)</bibRefCitation>
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, one of the specimens were found with a ventrally attached egg sac.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C37E54BBCCCC4E9BFED87C2A8C70815D" box="[312,1134,283,310]" pageId="187" pageNumber="188" type="distribution">
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||
<paragraph id="8BDB0730CCCC4E9BFED87C2A8C70815D" blockId="187.[264,1323,283,590]" box="[312,1134,283,310]" pageId="187" pageNumber="188">
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<emphasis id="B910DB22CCCC4E9BFED87C2A89CF815E" bold="true" box="[312,465,283,309]" pageId="187" pageNumber="188">Distribution</emphasis>
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. Central Pacific.
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<collectingCountry id="F37347A0CCCC4E9BFD7D7C2D8AEF815D" box="[669,753,284,310]" name="Samoa" pageId="187" pageNumber="188">Samoa</collectingCountry>
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. Only known from
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<typeStatus id="54DFB992CCCC4E9BFC367C2D8C17815D" box="[982,1033,284,310]" pageId="187" pageNumber="188">type</typeStatus>
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locality.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37E54BBCCCC4E9BFED87C728BE98225" pageId="187" pageNumber="188" type="discussion">
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<paragraph id="8BDB0730CCCC4E9BFED87C728BE98225" blockId="187.[264,1323,283,590]" pageId="187" pageNumber="188">
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<emphasis id="B910DB22CCCC4E9BFED87C7289B48136" bold="true" box="[312,426,323,349]" pageId="187" pageNumber="188">Remarks</emphasis>
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. The simple knoblike chaetae are similar to those found in
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<taxonomicName id="4C647CB3CCCC4E9BFB8D7C758CE88136" box="[1133,1270,324,349]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="species" species="emertoni">
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<emphasis id="B910DB22CCCC4E9BFB8D7C758CE88136" box="[1133,1270,324,349]" italics="true" pageId="187" pageNumber="188">A. emertoni</emphasis>
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</taxonomicName>
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, but bifurcated; the hooklike chaetae are unique, and nothing similar is found in any other known member of
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<taxonomicName id="4C647CB3CCCC4E9BFE0A7CA58A6681C5" box="[490,632,404,430]" class="Polychaeta" family="Syllidae" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="subFamily" subFamily="Autolytinae">Autolytinae</taxonomicName>
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. There is no described atoke to which
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<taxonomicName id="4C647CB3CCCC4E9BFBA07CA58CD281C6" box="[1088,1228,404,429]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="species" species="pacificus">
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<emphasis id="B910DB22CCCC4E9BFBA07CA58CD281C6" box="[1088,1228,404,429]" italics="true" pageId="187" pageNumber="188">A. pacificus</emphasis>
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</taxonomicName>
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may be referred. The presence of only simple chaetae, absence of bayonet chaetae, very small parapodia in unmodified regions, and absence of dorsal cirri suggest a close affinity with
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<taxonomicName id="4C647CB3CCCC4E9BFEE87F3D8990824D" box="[264,398,524,550]" class="Polychaeta" family="Syllidae" genus="Levidorum" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="genus">Levidorum</taxonomicName>
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. However, it would be premature to assign
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<taxonomicName id="4C647CB3CCCC4E9BFC787F3D8C3A824E" box="[920,1060,524,549]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="species" species="pacificus">
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||
<emphasis id="B910DB22CCCC4E9BFC787F3D8C3A824E" box="[920,1060,524,549]" italics="true" pageId="187" pageNumber="188">A. pacificus</emphasis>
|
||
</taxonomicName>
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||
to
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<taxonomicName id="4C647CB3CCCC4E9BFBAD7F3D8CD2824E" box="[1101,1228,524,549]" class="Polychaeta" family="Syllidae" genus="Levidorum" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="genus">
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<emphasis id="B910DB22CCCC4E9BFBAD7F3D8CD2824E" box="[1101,1228,524,549]" italics="true" pageId="187" pageNumber="188">Levidorum</emphasis>
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</taxonomicName>
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as very little is known of the stolons in this group. See also
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<taxonomicName id="4C647CB3CCCC4E9BFC877F058BEE8226" box="[871,1008,564,589]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="species" species="emertoni">
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||
<emphasis id="B910DB22CCCC4E9BFC877F058BEE8226" box="[871,1008,564,589]" italics="true" pageId="187" pageNumber="188">A. emertoni</emphasis>
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</taxonomicName>
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||
.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C37E54BBCCCC4E9BFEE87F9D8C08837A" pageId="187" pageNumber="188" type="reference_group">
|
||
<paragraph id="8BDB0730CCCC4E9BFEE87F9D8BDD82AD" blockId="187.[264,963,684,710]" box="[264,963,684,710]" pageId="187" pageNumber="188">
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||
<emphasis id="B910DB22CCCC4E9BFEE87F9D8BDD82AD" bold="true" box="[264,963,684,710]" pageId="187" pageNumber="188">
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||
<taxonomicName id="4C647CB3CCCC4E9BFEE87F9D8B0582AD" ID-CoL="a40d6edd-eca9-4fa0-a275-fb94344d1cff" authority="Averincev, 1982" authorityName="Averincev" authorityYear="1982" box="[264,795,684,710]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="species" species="scheremetevskiyi">
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<emphasis id="B910DB22CCCC4E9BFEE87F9D8A5082AD" bold="true" box="[264,590,684,710]" italics="true" pageId="187" pageNumber="188">Autolytus scheremetevskiyi</emphasis>
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||
<bibRefCitation id="EFF57AC1CCCC4E9BFDB67F9D8B0582AD" author="Averincev" box="[598,795,684,710]" pageId="187" pageNumber="188" refString="Averincev, V. G. (1982) Seasonal variations in the sublittoral polychaetes fauna (Polychaeta) of the Davis Sea [in Russian]. Ecology and Systematics of the Marine Hydrobionts. Academy of Sciences of the USSR, Zoological Institute, Explorations of the Fauna of the Seas, 28, 4 - 70." type="journal article" year="1982">Averincev, 1982</bibRefCitation>
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</taxonomicName>
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(Fig. 96A–D)
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</emphasis>
|
||
</paragraph>
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<paragraph id="8BDB0730CCCC4E9BFEE87FC68C08837A" blockId="187.[264,1046,759,785]" box="[264,1046,759,785]" pageId="187" pageNumber="188">
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||
<treatmentCitationGroup id="AB74201ECCCC4E9BFEE87FC68C08837A" box="[264,1046,759,785]" pageId="187" pageNumber="188">
|
||
<taxonomicName id="4C647CB3CCCC4E9BFEE87FC68B2B837A" ID-CoL="a40d6edd-eca9-4fa0-a275-fb94344d1cff" authority="Averincev, 1982: 21" authorityName="Averincev" authorityPageNumber="21" authorityYear="1982" box="[264,821,759,785]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="187" pageNumber="188" phylum="Annelida" rank="species" species="scheremetevskiyi">
|
||
<emphasis id="B910DB22CCCC4E9BFEE87FC68A5A837B" box="[264,580,759,784]" italics="true" pageId="187" pageNumber="188">Autolytus scheremetevskiyi</emphasis>
|
||
<treatmentCitation id="0AC52121CCCC4E9BFDAB7FC68B2B837A" author="Averincev" box="[587,821,759,785]" page="21" pageId="187" pageNumber="188" year="1982">
|
||
<bibRefCitation id="EFF57AC1CCCC4E9BFDAB7FC68B11837A" author="Averincev" box="[587,783,759,785]" pageId="187" pageNumber="188" refString="Averincev, V. G. (1982) Seasonal variations in the sublittoral polychaetes fauna (Polychaeta) of the Davis Sea [in Russian]. Ecology and Systematics of the Marine Hydrobionts. Academy of Sciences of the USSR, Zoological Institute, Explorations of the Fauna of the Seas, 28, 4 - 70." type="journal article" year="1982">Averincev, 1982</bibRefCitation>
|
||
: 21
|
||
</treatmentCitation>
|
||
</taxonomicName>
|
||
–22, pl. 3, fig. 1–3.
|
||
</treatmentCitationGroup>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37E54BBCCCC4E9BFEE87E7789BC83E2" pageId="187" pageNumber="188" type="materials_examined">
|
||
<paragraph id="8BDB0730CCCC4E9BFEE87E7789BC83E2" blockId="187.[264,1325,838,1905]" pageId="187" pageNumber="188">
|
||
<emphasis id="B910DB22CCCC4E9BFEE87E7789E8830B" bold="true" box="[264,502,838,864]" pageId="187" pageNumber="188">Material examined</emphasis>
|
||
.
|
||
<emphasis id="B910DB22CCCC4E9BFDE67E778AAC830B" bold="true" box="[518,690,838,864]" pageId="187" pageNumber="188">
|
||
<collectingCountry id="F37347A0CCCC4E9BFDE67E778A62830B" box="[518,636,838,864]" name="Antarctica" pageId="187" pageNumber="188">Antarctic</collectingCountry>
|
||
Sea
|
||
</emphasis>
|
||
:
|
||
<typeStatus id="54DFB992CCCC4E9BFD227E768B32830A" box="[706,812,839,865]" pageId="187" pageNumber="188" type="holotype">holotype</typeStatus>
|
||
,
|
||
<collectionCode id="ED759FF5CCCC4E9BFCD97E768B78830A" box="[825,870,839,865]" httpUri="http://grbio.org/cool/74rs-wjen" name="Academy of Sciences, Zoological Institute" pageId="187" pageNumber="188">ZIL</collectionCode>
|
||
42045, Amery shelf ice,
|
||
<quantity id="4C9CAAD5CCCC4E9BFB777E768CC9830A" box="[1175,1239,839,865]" metricMagnitude="1" metricUnit="m" metricValue="4.5" pageId="187" pageNumber="188" unit="m" value="45.0">45 m</quantity>
|
||
, rocks,
|
||
<date id="FFDA21F0CCCC4E9BFEE87E5E898083E2" box="[264,414,879,905]" pageId="187" pageNumber="188" value="1972-02-18">18 Feb 1972</date>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37E54BBCCCC4E9BFED87EA78A5F8722" pageId="187" pageNumber="188" type="description">
|
||
<paragraph id="8BDB0730CCCC4E9BFED87EA78C158442" blockId="187.[264,1325,838,1905]" pageId="187" pageNumber="188">
|
||
<emphasis id="B910DB22CCCC4E9BFED87EA789D783DB" bold="true" box="[312,457,918,944]" pageId="187" pageNumber="188">Description</emphasis>
|
||
.
|
||
<typeStatus id="54DFB992CCCC4E9BFE377EA68A5A83DA" box="[471,580,919,945]" pageId="187" pageNumber="188" type="holotype">Holotype</typeStatus>
|
||
is an anterior fragment of 12 chaetigers and a few newly achaetous regenerating segments. Length
|
||
<quantity id="4C9CAAD5CCCC4E9BFD267E8E8B3B83B2" box="[710,805,959,985]" metricMagnitude="-3" metricUnit="m" metricValue="3.2" pageId="187" pageNumber="188" unit="mm" value="3.2">3.2 mm</quantity>
|
||
, width
|
||
<quantity id="4C9CAAD5CCCC4E9BFC9F7E8E8BC183B2" box="[895,991,959,985]" metricMagnitude="-4" metricUnit="m" metricValue="7.0" pageId="187" pageNumber="188" unit="mm" value="0.7">0.7 mm</quantity>
|
||
. Preserved material yellowish, no colour markings. Body, excluding parapodial cylindrical, venter flattened; body width fairly constant. Ciliation as 1 troch per segment (Fig. 96A).
|
||
</paragraph>
|
||
<paragraph id="8BDB0730CCCC4E9BFED879068B9A849A" blockId="187.[264,1325,838,1905]" pageId="187" pageNumber="188">Prostomium rounded rectangular, wider than long. Four eyes, with lenses, in trapezoid arrangement, anterior pair only slightly larger. Eyes separated; eye spots present (Fig. 96B). Palps difficult to separate from prostomium (Fig. 96A), in dorsal view projecting 1/ 3 of prostomial length, fused. Extension of nuchal epaulettes to beginning of first chaetiger, more laterally positioned than is usual (Fig. 96A).</paragraph>
|
||
<paragraph id="8BDB0730CCCC4E9BFED879CE8C538662" blockId="187.[264,1325,838,1905]" pageId="187" pageNumber="188">Antennae lost. Dorsal tentacular cirri reaching chaetiger 1, ventral tentacular cirri 1/3 as long as dorsal pair. First dorsal cirri as long as dorsal tentacular cirri, second dorsal cirri as long as following dorsal cirri. Alternation in direction of cirri not assessed. Cirri equal, length 1/3 of body width. Cirrophores present on tentacular cirri, and all dorsal cirri. Cirrophores and cirrostyles equal; cirrophores much shorter than parapodial lobes; cirrophores shorter than cirrostyles. Tentacular cirri and first dorsal cirri club shaped (Fig. 96A), dorsal cirri from chaetiger 2 with precipitation, not possible to evaluate shape.</paragraph>
|
||
<paragraph id="8BDB0730CCCC4E9BFED87B268CC086EA" blockId="187.[264,1325,838,1905]" pageId="187" pageNumber="188">Parapodial lobes rounded, large (Fig. 96A). All chaetigers with 2–3 aciculae. Chaetal fascicle with c. 20 compounds in all chaetigers. Compound chaetae with large distal tooth, larger than subdistal tooth (Fig. 96A); serration present. Bayonet chaetae not found.</paragraph>
|
||
<paragraph id="8BDB0730CCCC4E9BFED87BBE8D3C8692" blockId="187.[264,1325,838,1905]" pageId="187" pageNumber="188">Pharynx with sinuation anterior and lateral to anterior part of proventricle. Trepan in chaetiger 4–5, detailed structure not possible to evaluate. Proventricle equal in length to 3 segments in chaetiger 9–11 with c. 50 rows of square shaped muscle cells. Pygidium lost.</paragraph>
|
||
<paragraph id="8BDB0730CCCC4E9BFED87A378A7B874A" blockId="187.[264,1325,838,1905]" box="[312,613,1798,1825]" pageId="187" pageNumber="188">
|
||
<emphasis id="B910DB22CCCC4E9BFED87A3789FA874B" bold="true" box="[312,484,1798,1824]" pageId="187" pageNumber="188">Reproduction</emphasis>
|
||
. Unknown
|
||
</paragraph>
|
||
<paragraph id="8BDB0730CCCC4E9BFED87A1F8A5F8722" blockId="187.[264,1325,838,1905]" box="[312,577,1838,1865]" pageId="187" pageNumber="188">
|
||
<emphasis id="B910DB22CCCC4E9BFED87A1F89868723" bold="true" box="[312,408,1838,1864]" pageId="187" pageNumber="188">Habitat</emphasis>
|
||
. Rocks,
|
||
<specimenCount id="9D62CCB9CCCC4E9BFE1E7A1E8A5F8722" box="[510,577,1839,1865]" pageId="187" pageNumber="188" type="generic">
|
||
<quantity id="4C9CAAD5CCCC4E9BFE1E7A1E8A238722" box="[510,573,1839,1865]" metricMagnitude="1" metricUnit="m" metricValue="4.5" pageId="187" pageNumber="188" unit="m" value="45.0">45 m</quantity>
|
||
.
|
||
</specimenCount>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37E54BBCCCC4E9BFED87A678BF8871A" box="[312,998,1878,1905]" pageId="187" pageNumber="188" type="distribution">
|
||
<paragraph id="8BDB0730CCCC4E9BFED87A678BF8871A" blockId="187.[264,1325,838,1905]" box="[312,998,1878,1905]" pageId="187" pageNumber="188">
|
||
<emphasis id="B910DB22CCCC4E9BFED87A6789CF871B" bold="true" box="[312,465,1878,1904]" pageId="187" pageNumber="188">Distribution</emphasis>
|
||
.
|
||
<collectingCountry id="F37347A0CCCC4E9BFE3F7A668A4E871A" box="[479,592,1879,1905]" name="Antarctica" pageId="187" pageNumber="188">Antarctic</collectingCountry>
|
||
. Only known from
|
||
<typeStatus id="54DFB992CCCC4E9BFCD57A668B76871A" box="[821,872,1879,1905]" pageId="187" pageNumber="188">type</typeStatus>
|
||
specimen.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C37E54BBCCCB4E9CFED87C2A8CE5824D" pageId="188" pageNumber="189" type="discussion">
|
||
<paragraph id="8BDB0730CCCB4E9CFED87C2A8CE5824D" blockId="188.[264,1323,283,550]" pageId="188" pageNumber="189">
|
||
<emphasis id="B910DB22CCCB4E9CFED87C2A89B4815E" bold="true" box="[312,426,283,309]" pageId="188" pageNumber="189">Remarks</emphasis>
|
||
.
|
||
<taxonomicName id="4C647CB3CCCB4E9CFE207C2D8B1D815E" box="[448,771,284,309]" class="Polychaeta" family="Syllidae" genus="Autolytus" kingdom="Animalia" order="Phyllodocida" pageId="188" pageNumber="189" phylum="Annelida" rank="species" species="scheremetevskiyi">
|
||
<emphasis id="B910DB22CCCB4E9CFE207C2D8B1D815E" box="[448,771,284,309]" italics="true" pageId="188" pageNumber="189">Autolytus scheremetevskiyi</emphasis>
|
||
</taxonomicName>
|
||
is a peculiar autolytine, unfortunately only known from this anterior fragment. It is unique in having distal tooth larger than subdistal tooth, and more laterally positioned nuchal epaulettes than usual. The specimen has large parapodial lobes from chaetiger 1, normally the parapodia is slightly smaller in the anteriormost chaetigers. This, in combination with the rather small head with diffuse palps could indicate that the specimen has a regenerated head.
|
||
<collectingCountry id="F37347A0CCCB4E9CFC397CD58BE48195" box="[985,1018,484,510]" name="American Samoa" pageId="188" pageNumber="189">As</collectingCountry>
|
||
many of the characters, including the trepan, is unknown, it is considered as
|
||
<taxonomicName id="4C647CB3CCCB4E9CFC907F3D8C11824D" box="[880,1039,524,550]" class="Polychaeta" family="Syllidae" genus="Epigamia" kingdom="Animalia" order="Phyllodocida" pageId="188" pageNumber="189" phylum="Annelida" rank="subSpecies" species="incertae" subSpecies="sedis">incertae sedis</taxonomicName>
|
||
within
|
||
<taxonomicName id="4C647CB3CCCB4E9CFB887F3D8CE9824D" box="[1128,1271,524,550]" class="Polychaeta" family="Syllidae" kingdom="Animalia" order="Phyllodocida" pageId="188" pageNumber="189" phylum="Annelida" rank="subFamily" subFamily="Autolytinae">Autolytinae</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |