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<mods:title id="CBDEBC0C069C83932C8EDED313225969">Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)</mods:title>
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<mods:namePart id="1E97A3ACA5236F68B56AD84D2D3D1FA8">Miranda, Thaís P.</mods:namePart>
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<mods:namePart id="4EE8A23065B21759431823EF9A8A4377">Migotto, Alvaro E.</mods:namePart>
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<treatment id="0389B761B71CAD29FF2EC0D018BF3579" ID-DOI="http://doi.org/10.5281/zenodo.6190998" ID-GBIF-Taxon="119426413" ID-Zenodo-Dep="6190998" LSID="urn:lsid:plazi:treatment:0389B761B71CAD29FF2EC0D018BF3579" httpUri="http://treatment.plazi.org/id/0389B761B71CAD29FF2EC0D018BF3579" lastPageId="17" lastPageNumber="17" pageId="14" pageNumber="15">
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<paragraph id="8B9F0677B71CAD36FF2EC0D01991311A" blockId="14.[151,654,1261,1319]" box="[151,654,1261,1287]" pageId="14" pageNumber="15">
<heading id="D0D7B11BB71CAD36FF2EC0D01991311A" bold="true" box="[151,654,1261,1287]" fontSize="11" level="1" pageId="14" pageNumber="15" reason="1">
<taxonomicName id="4C207DF4B71CAD36FF2EC0D01991311A" ID-CoL="6J37P" authority="Antsulevich, 1987" authorityName="Antsulevich" authorityYear="1987" box="[151,654,1261,1287]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B71CAD36FF2EC0D01991311A" bold="true" box="[151,654,1261,1287]" pageId="14" pageNumber="15">
<emphasis id="B954DA65B71CAD36FF2EC0D01A8A311A" bold="true" box="[151,405,1261,1287]" italics="true" pageId="14" pageNumber="15">Filellum parasiticum</emphasis>
(
<bibRefCitation id="EFB17B86B71CAD36FE1CC0D01999311A" author="Antsulevich" box="[421,646,1261,1287]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich, 1987</bibRefCitation>
)
</emphasis>
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</heading>
</paragraph>
<paragraph id="8B9F0677B71CAD36FF2EC1321A23313A" blockId="14.[151,654,1261,1319]" box="[151,316,1295,1319]" pageId="14" pageNumber="15">
(
<figureCitation id="131B1AF2B71CAD36FF27C1321BE1313A" box="[158,254,1295,1319]" captionStart="FIGURE 4" captionStartId="15.[151,250,1960,1983]" captionTargetBox="[294,1292,553,1938]" captionTargetId="figure@15.[294,1293,553,1939]" captionTargetPageId="15" captionText="FIGURE 4. Filellum parasiticum (Antsulevich, 1987). (A) General view of the hydrorhiza and hydrothecae. (B) Detail of the hydrotheca with aperture, side view. Scale bar: 250 µm (A); 100 µm (B)." httpUri="https://zenodo.org/record/206787/files/figure.png" pageId="14" pageNumber="15">Figure 4</figureCitation>
AB)
</paragraph>
</subSubSection>
<subSubSection id="C33A55FCB71CAD36FF2EC1651FE93191" pageId="14" pageNumber="15" type="reference_group">
<paragraph id="8B9F0677B71CAD36FF2EC16519DA3170" blockId="14.[151,1270,1368,1421]" box="[151,709,1368,1390]" pageId="14" pageNumber="15">
<treatmentCitationGroup id="AB302159B71CAD36FF2EC16519DA3170" box="[151,709,1368,1390]" pageId="14" pageNumber="15">
<taxonomicName id="4C207DF4B71CAD36FF2EC16519533173" authority="Antsulevich, 1987: 57" authorityName="Antsulevich" authorityPageNumber="57" authorityYear="1987" box="[151,588,1368,1390]" class="Hydrozoa" family="Lineolariidae" genus="Lineolaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="parasitica">
<emphasis id="B954DA65B71CAD36FF2EC1651A753173" box="[151,362,1368,1390]" italics="true" pageId="14" pageNumber="15">Lineolaria parasitica</emphasis>
<treatmentCitation id="0A812066B71CAD36FEC9C16519533173" author="Antsulevich" box="[368,588,1368,1390]" page="57" pageId="14" pageNumber="15" year="1987">
<bibRefCitation id="EFB17B86B71CAD36FEC9C16519363170" author="Antsulevich" box="[368,553,1368,1390]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich, 1987</bibRefCitation>
: 57
</treatmentCitation>
</taxonomicName>
58, fig. 14.
</treatmentCitationGroup>
</paragraph>
<paragraph id="8B9F0677B71CAD36FF2EC14A1FE93191" blockId="14.[151,1270,1368,1421]" box="[151,1270,1398,1421]" pageId="14" pageNumber="15">
<treatmentCitationGroup id="AB302159B71CAD36FF2EC14A1FE93191" box="[151,1270,1398,1421]" pageId="14" pageNumber="15">
<taxonomicName id="4C207DF4B71CAD36FF2EC14A19C13191" ID-CoL="6J37P" authority="Antsulevich and Vervoort 1993: 431" authorityName="Antsulevich and Vervoort" authorityPageNumber="431" authorityYear="1993" box="[151,734,1398,1421]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B71CAD36FF2EC14A1A773190" box="[151,360,1399,1421]" italics="true" pageId="14" pageNumber="15">Filellum parasiticum</emphasis>
:
<treatmentCitation id="0A812066B71CAD36FECDC14B19C13191" author="Antsulevich" box="[372,734,1398,1420]" page="431" pageId="14" pageNumber="15" year="1993">
<bibRefCitation id="EFB17B86B71CAD36FECDC14B19B03191" author="Antsulevich" box="[372,687,1398,1420]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich and Vervoort 1993</bibRefCitation>
: 431
</treatmentCitation>
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433, figs. 1ab, 2ab;
<treatmentCitation id="0A812066B71CAD36FC71C14A1FED3191" author="Pena" box="[968,1266,1399,1421]" page="302" pageId="14" pageNumber="15" year="1998">
<bibRefCitation id="EFB17B86B71CAD36FC71C14A1FDF3191" author="Pena" box="[968,1216,1399,1421]" pageId="14" pageNumber="15" refString="Pena Cantero, A. L., Garcia Carrascosa, A. M. &amp; Vervoort, W. (1998) On the species of Filellum Hincks, 1868 (Cnidaria: Hydrozoa) with the description of a new species. Journal of Natural History, 32, 297 - 315." type="journal article" year="1998">
Peña Cantero
<emphasis id="B954DA65B71CAD36FBEDC1451F993190" box="[1108,1158,1399,1421]" italics="true" pageId="14" pageNumber="15">et al.</emphasis>
1998
</bibRefCitation>
: 302
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C33A55FCB71CAD36FF2EC187192632EC" pageId="14" pageNumber="15" type="materials_examined">
<paragraph id="8B9F0677B71CAD36FF2EC1871A8A327C" blockId="14.[151,1437,1465,2029]" pageId="14" pageNumber="15">
<emphasis id="B954DA65B71CAD36FF2EC1871A3931CF" bold="true" box="[151,294,1465,1490]" pageId="14" pageNumber="15">
<typeStatus id="549BB8D5B71CAD36FF2EC1871BCD31CF" box="[151,210,1466,1490]" pageId="14" pageNumber="15">Type</typeStatus>
series.
</emphasis>
Holotype—
<taxonomicName id="4C207DF4B71CAD36FE0DC184189B31CC" authority="Antsulevich, 1987" authorityName="Antsulevich" authorityYear="1987" box="[436,900,1465,1489]" class="Hydrozoa" family="Lineolariidae" genus="Lineolaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="parasitica">
<emphasis id="B954DA65B71CAD36FE0DC18419B831CC" box="[436,679,1465,1489]" italics="true" pageId="14" pageNumber="15">Lineolaria parasitica</emphasis>
<bibRefCitation id="EFB17B86B71CAD36FD08C184189B31CC" author="Antsulevich" box="[689,900,1465,1489]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich, 1987</bibRefCitation>
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, infertile colony on
<taxonomicName id="4C207DF4B71CAD36FBCBC1841A3931E8" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B71CAD36FBCBC1841E4731CC" box="[1138,1368,1465,1489]" italics="true" pageId="14" pageNumber="15">Abietinaria abietina</emphasis>
(
<bibRefCitation id="EFB17B86B71CAD36FAD3C1841A0231E8" author="Linnaeus" pageId="14" pageNumber="15" refString="Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I, editio decima, reformata, Holmiae, Laurentii Salvii, 823 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
)
</taxonomicName>
(
<collectionCode id="ED319EB2B71CAD36FE8DC1E01A9831E8" box="[308,391,1501,1525]" pageId="14" pageNumber="15">ZIRAS</collectionCode>
no. 10051/1). Paratypes—
<taxonomicName id="4C207DF4B71CAD36FD0AC1E01F6731E8" authority="Antsulevich, 1987" authorityName="Antsulevich" authorityYear="1987" box="[691,1144,1501,1525]" class="Hydrozoa" family="Lineolariidae" genus="Lineolaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="parasitica">
<emphasis id="B954DA65B71CAD36FD0AC1E018BE31E8" box="[691,929,1501,1525]" italics="true" pageId="14" pageNumber="15">Lineolaria parasitica</emphasis>
<bibRefCitation id="EFB17B86B71CAD36FC11C1E01F6731E8" author="Antsulevich" box="[936,1144,1501,1525]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich, 1987</bibRefCitation>
</taxonomicName>
, infertile colony on
<taxonomicName id="4C207DF4B71CAD36FAEEC1E019163204" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B71CAD36FAEEC1E01A5F3204" italics="true" pageId="14" pageNumber="15">Abietinaria abietina</emphasis>
(
<bibRefCitation id="EFB17B86B71CAD36FEE9C23C191F3204" author="Linnaeus" box="[336,512,1537,1561]" pageId="14" pageNumber="15" refString="Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I, editio decima, reformata, Holmiae, Laurentii Salvii, 823 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
)
</taxonomicName>
(
<collectionCode id="ED319EB2B71CAD36FDA0C23C19743204" box="[537,619,1537,1561]" pageId="14" pageNumber="15">ZIRAS</collectionCode>
no. 2/10052); infertile colony on
<taxonomicName id="4C207DF4B71CAD36FC56C23C1E833204" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[1007,1436,1537,1561]" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B71CAD36FC56C23C1FCC3204" box="[1007,1235,1537,1561]" italics="true" pageId="14" pageNumber="15">Abietinaria abietina</emphasis>
(
<bibRefCitation id="EFB17B86B71CAD36FB5AC23C1E8B3204" author="Linnaeus" box="[1251,1428,1537,1561]" pageId="14" pageNumber="15" refString="Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I, editio decima, reformata, Holmiae, Laurentii Salvii, 823 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
)
</taxonomicName>
(
<collectionCode id="ED319EB2B71CAD36FF27C2181BEE3220" box="[158,241,1573,1597]" pageId="14" pageNumber="15">ZIRAS</collectionCode>
no. 3/10052.1); infertile colony on
<taxonomicName id="4C207DF4B71CAD36FDC4C2181F3B3220" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[637,1060,1573,1597]" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B71CAD36FDC4C21818403220" box="[637,863,1573,1597]" italics="true" pageId="14" pageNumber="15">Abietinaria abietina</emphasis>
(
<bibRefCitation id="EFB17B86B71CAD36FCD4C2181F033220" author="Linnaeus" box="[877,1052,1573,1597]" pageId="14" pageNumber="15" refString="Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I, editio decima, reformata, Holmiae, Laurentii Salvii, 823 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
)
</taxonomicName>
(
<collectionCode id="ED319EB2B71CAD36FB8BC2181F973220" LSID="urn:lsid:biocol.org:col:34992" box="[1074,1160,1573,1597]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="14" pageNumber="15">RMNH</collectionCode>
Coel. No. 26770 sample and 3 slides no. 1820).
</paragraph>
<paragraph id="8B9F0677B71CAD36FF7EC250192932B4" blockId="14.[151,1437,1465,2029]" pageId="14" pageNumber="15">
<emphasis id="B954DA65B71CAD36FF7EC2501A7B329B" bold="true" box="[199,356,1645,1670]" pageId="14" pageNumber="15">
<typeStatus id="549BB8D5B71CAD36FF7EC2501A1F3298" box="[199,256,1645,1669]" pageId="14" pageNumber="15">Type</typeStatus>
locality.
</emphasis>
From the
<typeStatus id="549BB8D5B71CAD36FE65C25019213298" box="[476,574,1645,1669]" pageId="14" pageNumber="15" type="holotype">holotype</typeStatus>
and
<typeStatus id="549BB8D5B71CAD36FDCEC25319FA329B" box="[631,741,1646,1670]" pageId="14" pageNumber="15" type="paratype">paratypes</typeStatus>
, central part of Sea of Okhotsk, SE of Iona
<collectingCountry id="F33746E7B71CAD36FB61C2501E003298" box="[1240,1311,1645,1669]" name="Iceland" pageId="14" pageNumber="15">Island</collectingCountry>
, depth
<quantity id="4CD8AB92B71CAD36FACBC2501BB032B4" metricMagnitude="2" metricUnit="m" metricValue="1.6" pageId="14" pageNumber="15" unit="m" value="160.0">160 m</quantity>
,
<date id="FF9E20B7B71CAD36FF02C2AC1A7D32B4" box="[187,354,1681,1706]" pageId="14" pageNumber="15" value="1986-08-04">4 August 1986</date>
, leg. AV Smirnoff.
</paragraph>
<paragraph id="8B9F0677B71CAD36FF7EC288192632EC" blockId="14.[151,1437,1465,2029]" pageId="14" pageNumber="15">
<emphasis id="B954DA65B71CAD36FF7EC2881AAC32D3" bold="true" box="[199,435,1717,1742]" pageId="14" pageNumber="15">Material examined.</emphasis>
<typeStatus id="549BB8D5B71CAD36FE05C288193B32D0" box="[444,548,1717,1741]" pageId="14" pageNumber="15" type="holotype">Holotype</typeStatus>
<collectionCode id="ED319EB2B71CAD36FD97C288196032D0" box="[558,639,1717,1741]" pageId="14" pageNumber="15">ZIRAS</collectionCode>
10051/1;
<typeStatus id="549BB8D5B71CAD36FD4AC28B187F32D3" box="[755,864,1718,1742]" pageId="14" pageNumber="15" type="paratype">Paratypes</typeStatus>
<collectionCode id="ED319EB2B71CAD36FCD0C28818A632D0" box="[873,953,1717,1741]" pageId="14" pageNumber="15">ZIRAS</collectionCode>
2/10052;
<collectionCode id="ED319EB2B71CAD36FB94C2881F6232D0" box="[1069,1149,1717,1741]" pageId="14" pageNumber="15">ZIRAS</collectionCode>
3/10052.1;
<collectionCode id="ED319EB2B71CAD36FABCC28B1E4732D0" LSID="urn:lsid:biocol.org:col:34992" box="[1285,1368,1718,1741]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34992" name="National Museum of Natural History, Naturalis" pageId="14" pageNumber="15">RMNH</collectionCode>
Coel. 26770 (sample and 3 slides no. 1820).
</paragraph>
</subSubSection>
<subSubSection id="C33A55FCB71CAD28FF7EC2C018053012" lastPageId="16" lastPageNumber="17" pageId="14" pageNumber="15" type="description">
<paragraph id="8B9F0677B71CAD37FF7EC2C01A7935D2" blockId="14.[151,1437,1465,2029]" lastBlockId="15.[151,1436,151,500]" lastPageId="15" lastPageNumber="16" pageId="14" pageNumber="15">
<emphasis id="B954DA65B71CAD36FF7EC2C01AEA3308" bold="true" box="[199,501,1789,1814]" pageId="14" pageNumber="15">
Description of
<typeStatus id="549BB8D5B71CAD36FE3EC2C01AEF3308" box="[391,496,1789,1813]" pageId="14" pageNumber="15" type="holotype">holotype</typeStatus>
.
</emphasis>
(Complemented with data from
<bibRefCitation id="EFB17B86B71CAD36FC3FC2C01F4B3308" author="Antsulevich" box="[902,1108,1789,1813]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich 1987</bibRefCitation>
: 5758; after translation in
<bibRefCitation id="EFB17B86B71CAD36FF2EC31C1AF43324" author="Antsulevich" box="[151,491,1825,1849]" pageId="14" pageNumber="15" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich &amp; Vervoort 1993</bibRefCitation>
: 432433): Colony stolonal, with filiform, although flattened, creeping hydrorhiza,
<quantity id="4CD8AB92B71CAD36FF2EC3781A4B3340" box="[151,340,1861,1885]" metricMagnitude="-5" metricUnit="m" metricValue="6.45" metricValueMax="7.4" metricValueMin="5.5" pageId="14" pageNumber="15" unit="mm" value="0.0645" valueMax="0.074" valueMin="0.055">0.0550.074 mm</quantity>
wide, growing over
<quantity id="4CD8AB92B71CAD36FDF9C378198F3340" box="[576,656,1861,1885]" metricMagnitude="-2" metricUnit="m" metricValue="2.0" pageId="14" pageNumber="15" unit="mm" value="20.0">20 mm</quantity>
long fragment of stem and proximal parts of branches of
<taxonomicName id="4C207DF4B71CAD36FAA6C3781AAA339C" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="15" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B71CAD36FAA6C3781BEE339C" italics="true" pageId="14" pageNumber="15">Abietinaria abietina</emphasis>
(
<bibRefCitation id="EFB17B86B71CAD36FF47C3541AB2339C" author="Linnaeus" box="[254,429,1897,1921]" pageId="14" pageNumber="15" refString="Linnaeus, C. (1758) Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I, editio decima, reformata, Holmiae, Laurentii Salvii, 823 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
)
</taxonomicName>
; hydrorhizal tubes and hydrothecae with anastomosed perisarc, forming a more or less tight mesh with no free space in some parts of the sertulariid substrate. Hydrothecae sessile, arising with no definite pattern from hydrorhiza, usually completely adnate to substratum, parallel to, or over hydrorhizal stolon or, exceptionally, with short free part at end of substrate or in case of overlapping hydrothecae. Hydrothecae irregularly curved to varied degree in diverse patterns with horizontal plane, but not emerging from substrate plane. Perisarc tube of hydrorhiza thinner than hydrothecae. Adnate portion of hydrothecae tubular or maximally slightly flattened,
<quantity id="4CD8AB92B71DAD37FAE7C4811BE534EA" metricMagnitude="-4" metricUnit="m" metricValue="5.1" metricValueMax="6.0" metricValueMin="4.2" pageId="15" pageNumber="16" unit="mm" value="0.51" valueMax="0.6" valueMin="0.42">0.42 0.60 mm</quantity>
(0.52 ±0.05, n=10) long, perisarc smooth; free part cylindrical, smooth, 0.00
<quantity id="4CD8AB92B71DAD37FBD8C4E21FDC34EA" box="[1121,1219,223,247]" metricMagnitude="-5" metricUnit="m" metricValue="8.0" pageId="15" pageNumber="16" unit="mm" value="0.08">0.08 mm</quantity>
(0.03 ±0.03, n=10) long; perisarc moderately thin; hydrothecae not widening distally, margin even and smooth; many hydrothecae laterally depressed, with no renovations, rarely slightly flaring; hydrothecal aperture near circular,
<quantity id="4CD8AB92B71DAD37FB41C51A1E833522" box="[1272,1436,295,319]" metricMagnitude="-4" metricUnit="m" metricValue="1.4" metricValueMax="1.6" metricValueMin="1.2" pageId="15" pageNumber="16" unit="mm" value="0.14" valueMax="0.16" valueMin="0.12">0.120.16 mm</quantity>
(0.14 ±0.01, n=10) wide, perpendicular to long axis of hydrotheca. Hydranths
<quantity id="4CD8AB92B71DAD37FC52C5711F943579" box="[1003,1163,332,356]" metricMagnitude="-4" metricUnit="m" metricValue="1.6" metricValueMax="2.0" metricValueMin="1.2" pageId="15" pageNumber="16" unit="mm" value="0.16" valueMax="0.2" valueMin="0.12">0.120.20 mm</quantity>
high (0.16 ±0.02, n=10),
<quantity id="4CD8AB92B71DAD37FF2EC5521A28359A" box="[151,311,367,391]" metricMagnitude="-4" metricUnit="m" metricValue="1.2" metricValueMax="1.4" metricValueMin="1.0" pageId="15" pageNumber="16" unit="mm" value="0.12" valueMax="0.14" valueMin="0.1">0.100.14 mm</quantity>
wide (0.12 ±0.01, n=10) at base of tentacles, with ca. 1016 tentacles, hypostome conical. Hydranths, when retracted, lying at base of the hydrothecae, with very truncated base. Sometimes coenosarc preceding hydranth expanded laterally.
</paragraph>
<paragraph id="8B9F0677B71DAD37FF7CC5E11AA935E9" blockId="15.[151,1436,151,500]" box="[197,438,476,500]" pageId="15" pageNumber="16">Gonothecae not seen.</paragraph>
<caption id="DF5F56FFB71DAD37FF2EC395186633C3" httpUri="https://zenodo.org/record/206787/files/figure.png" pageId="15" pageNumber="16" targetBox="[294,1292,553,1938]" targetPageId="15">
<paragraph id="8B9F0677B71DAD37FF2EC395186633C3" blockId="15.[151,1436,1960,2014]" pageId="15" pageNumber="16">
<emphasis id="B954DA65B71DAD37FF2EC3951A0C33A3" bold="true" box="[151,275,1960,1983]" pageId="15" pageNumber="16">FIGURE 4.</emphasis>
<taxonomicName id="4C207DF4B71DAD37FEA3C39419DA33A2" authority="Antsulevich, 1987" authorityName="Antsulevich" authorityYear="1987" box="[282,709,1961,1983]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="16" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B71DAD37FEA3C3941AEF33A2" box="[282,496,1961,1983]" italics="true" pageId="15" pageNumber="16">Filellum parasiticum</emphasis>
(Antsulevich, 1987)
</taxonomicName>
. (A) General view of the hydrorhiza and hydrothecae. (B) Detail of the hydrotheca with aperture, side view. Scale bar: 250 µm (A); 100 µm (B).
</paragraph>
</caption>
<paragraph id="8B9F0677B702AD28FF7CC4A5182434C9" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">Nematocysts of one category, heterotrichous microbasic euryteles (not seen discharged), 5.57.5 X 2.53.5 µm (6.15 ±0.41 X 2.90 ±0.39, n=10), bean-shaped, common.</paragraph>
<paragraph id="8B9F0677B702AD28FF7EC4E219A936D1" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">
<emphasis id="B954DA65B702AD28FF7EC4E21AEB34E5" bold="true" box="[199,500,223,248]" pageId="16" pageNumber="17">
Description of
<typeStatus id="549BB8D5B702AD28FECFC4DD1AF134E5" box="[374,494,224,248]" pageId="16" pageNumber="17" type="paratype">paratypes</typeStatus>
.
</emphasis>
Colonies stolonal, with filiform although flattened and creeping hydrorhiza, growing over
<quantity id="4CD8AB92B702AD28FF76C5391A103501" box="[207,271,260,284]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="16" pageNumber="17" unit="mm" value="5.0">5 mm</quantity>
(ZIRAS 2/10052) and
<quantity id="4CD8AB92B702AD28FDB6C53919423501" box="[527,605,260,284]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="16" pageNumber="17" unit="mm" value="40.0">40 mm</quantity>
(ZIRAS 3/10052.1) long portions of stem and branches of
<taxonomicName id="4C207DF4B702AD28FB55C5391BD1355D" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B702AD28FB55C5391BD1355D" italics="true" pageId="16" pageNumber="17">Abietinaria abietina</emphasis>
</taxonomicName>
; hydrorhizal tubes and hydrothecae with anastomosed perisarc, forming a cover in some parts of the sertulariid substrate. Hydrothecae sessile, arising with no definite pattern from hydrorhiza, usually completely adnate to substratum, parallel to, or over hydrorhizal stolon or, maximally, with short free part either at end of substrate, or in case of overlapping hydrothecae, or renovations of hydrothecae resulting in an ascending free part. Hydrothecae irregularly curved to varied degree in diverse patterns at horizontal plan, occasionally from substrate plane. Perisarc tube of hydrorhiza thinner than hydrothecae. Adnate portion of hydrothecae tubular or maximally slightly flattened,
<quantity id="4CD8AB92B702AD28FAE7C5E11BE4360A" metricMagnitude="-4" metricUnit="m" metricValue="3.55" metricValueMax="3.8" metricValueMin="3.3" pageId="16" pageNumber="17" unit="mm" value="0.355" valueMax="0.38" valueMin="0.33">0.33 0.38 mm</quantity>
(0.35 ±0.02, n=7) long, perisarc smooth; free part cylindrical, smooth, 0.00
<quantity id="4CD8AB92B702AD28FBE7C5C21FDE360A" box="[1118,1217,511,535]" metricMagnitude="-5" metricUnit="m" metricValue="8.0" pageId="16" pageNumber="17" unit="mm" value="0.08">0.08 mm</quantity>
(0.05 ±0.03, n=11) long; perisarc moderately thin; hydrothecae not widening distally, margin even and smooth, many laterally depressed with projections of abcaulinar and adcaulinar walls, with up to 6 renovations emerging from substrate plane, rarely slightly flaring; hydrothecal aperture near circular,
<quantity id="4CD8AB92B702AD28FD70C65118763699" box="[713,873,620,644]" metricMagnitude="-4" metricUnit="m" metricValue="1.3" metricValueMax="1.5" metricValueMin="1.1" pageId="16" pageNumber="17" unit="mm" value="0.13" valueMax="0.15" valueMin="0.11">0.110.15 mm</quantity>
(0.13 ±0.02, n=9) wide, perpendicular to long axis of hydrotheca. Hydranths, when retracted, lying at base of the hydrothecae, with very truncated base. Sometimes coenosarc preceding hydranth expanded laterally.
</paragraph>
<paragraph id="8B9F0677B702AD28FF7CC6EA1AA936F2" blockId="16.[151,1437,151,2012]" box="[197,438,727,751]" pageId="16" pageNumber="17">Gonothecae not seen.</paragraph>
<paragraph id="8B9F0677B702AD28FF7CC6C019F53740" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">
Nematocysts of two categories: heterotrichous microbasic euryteles (not seen discharged), approximately same dimensions as
<typeStatus id="549BB8D5B702AD28FEF8C7221AB9372A" box="[321,422,799,823]" pageId="16" pageNumber="17" type="holotype">holotype</typeStatus>
, bean-shaped, common; heterotrichous microbasic mastigophores (not seen discharged), rice-shaped, only one nematocyst seen, 15.5
<date id="FF9E20B7B702AD28FD35C77819AA3741" box="[652,693,836,860]" pageId="16" pageNumber="17">X 4</date>
µm.
</paragraph>
<paragraph id="8B9F0677B702AD28FF7EC75A18053012" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">
<emphasis id="B954DA65B702AD28FF7EC75A1A92379D" bold="true" box="[199,397,871,896]" pageId="16" pageNumber="17">Additional data.</emphasis>
<bibRefCitation id="EFB17B86B702AD28FE20C75A18933762" author="Antsulevich" box="[409,908,871,896]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich and Vervoort (1993: 432433)</bibRefCitation>
described the gonosome of the species: “the gonosome is a typical coppinia, surrounding an internode of
<taxonomicName id="4C207DF4B702AD28FCF7C7B118D437B9" box="[846,971,908,932]" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B702AD28FCF7C7B118D437B9" box="[846,971,908,932]" italics="true" pageId="16" pageNumber="17">A. abietina</emphasis>
</taxonomicName>
for length of
<quantity id="4CD8AB92B702AD28FBD5C7B11FAD37B9" box="[1132,1202,908,932]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="16" pageNumber="17" unit="mm" value="3.0">3 mm</quantity>
. Gonothecae closely packed, contiguous laterally, usually 56 sided as viewed from above but many varied in shape; slender, invertedpyramidal, apically contracted and there with remarkable short neck leading to circular rim. Protecting tubes numerous, arising between gonothecae, usually curving”.
</paragraph>
</subSubSection>
<subSubSection id="C33A55FCB702AD28FF7EC0261E473029" box="[199,1368,1051,1076]" pageId="16" pageNumber="17" type="distribution">
<paragraph id="8B9F0677B702AD28FF7EC0261E473029" blockId="16.[151,1437,151,2012]" box="[199,1368,1051,1076]" pageId="16" pageNumber="17">
<emphasis id="B954DA65B702AD28FF7EC0261A7F3029" bold="true" box="[199,352,1051,1076]" pageId="16" pageNumber="17">Distribution.</emphasis>
<taxonomicName id="4C207DF4B702AD28FEDEC021194C3029" box="[359,595,1052,1076]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FEDEC021194C3029" box="[359,595,1052,1076]" italics="true" pageId="16" pageNumber="17">Filellum parasiticum</emphasis>
</taxonomicName>
is only known from the Okhotsk Sea and Kurile Islands, NE Pacific.
</paragraph>
</subSubSection>
<subSubSection id="C33A55FCB702AD29FF7EC07D18BF3579" lastPageId="17" lastPageNumber="18" pageId="16" pageNumber="17" type="discussion">
<paragraph id="8B9F0677B702AD28FF7EC07D181D30D9" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">
<emphasis id="B954DA65B702AD28FF7EC07D1A243045" bold="true" box="[199,315,1088,1112]" pageId="16" pageNumber="17">Remarks.</emphasis>
This species was originally included in the genus
<taxonomicName id="4C207DF4B702AD28FCC6C07D18EC3045" box="[895,1011,1088,1112]" class="Hydrozoa" family="Lineolariidae" genus="Lineolaria" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B954DA65B702AD28FCC6C07D18EC3045" box="[895,1011,1088,1112]" italics="true" pageId="16" pageNumber="17">Lineolaria</emphasis>
</taxonomicName>
for the Kuril Islands, northern hemisphere (
<bibRefCitation id="EFB17B86B702AD28FF56C0591AA53061" author="Antsulevich" box="[239,442,1124,1148]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich 1987</bibRefCitation>
).
<bibRefCitation id="EFB17B86B702AD28FE76C05819BF3061" author="Watson" box="[463,672,1124,1148]" pageId="16" pageNumber="17" refString="Watson, J. E. (1992) Revision of the family Lineolariidae Allman, 1864 (Hydrozoa: Hydroida). Proceedings of the Royal Society of Victoria, 104, 81 - 87." type="journal article" year="1992">Watson (1992: 81)</bibRefCitation>
considered the species “to have closer affinities with the
<taxonomicName id="4C207DF4B702AD28FA97C0591E833061" box="[1326,1436,1124,1148]" class="Hydrozoa" family="Lafoeidae" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="family">Lafoeidae</taxonomicName>
than with the
<taxonomicName id="4C207DF4B702AD28FE8EC0B51AD030BD" box="[311,463,1160,1184]" class="Hydrozoa" family="Lineolariidae" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="family">Lineolariidae</taxonomicName>
”, and
<bibRefCitation id="EFB17B86B702AD28FDA1C0B51F1E30BD" author="Antsulevich" box="[536,1025,1160,1184]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich and Vervoort (1993: 431433)</bibRefCitation>
transferred the species to the genus
<taxonomicName id="4C207DF4B702AD28FF2EC0911BEB30D9" box="[151,244,1196,1220]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B954DA65B702AD28FF2EC0911BEB30D9" box="[151,244,1196,1220]" italics="true" pageId="16" pageNumber="17">Filellum</emphasis>
</taxonomicName>
after the study of fertile material with coppinia.
</paragraph>
<paragraph id="8B9F0677B702AD28FF7CC0ED1F8431F9" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">
Examination of the
<typeStatus id="549BB8D5B702AD28FE1EC0EC190D30F4" box="[423,530,1233,1257]" pageId="16" pageNumber="17" type="paratype">paratypes</typeStatus>
revealed some interesting differences and a complementary knowledge in relation to the
<typeStatus id="549BB8D5B702AD28FEB6C0C91A6E3111" box="[271,369,1268,1292]" pageId="16" pageNumber="17" type="holotype">holotype</typeStatus>
of
<taxonomicName id="4C207DF4B702AD28FE2EC0C819273111" box="[407,568,1269,1292]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FE2EC0C819273111" box="[407,568,1269,1292]" italics="true" pageId="16" pageNumber="17">F. parasiticum</emphasis>
</taxonomicName>
. The first important difference is the presence of renovations in this material. Unlike the
<typeStatus id="549BB8D5B702AD28FEACC1251A65312D" box="[277,378,1304,1328]" pageId="16" pageNumber="17" type="holotype">holotype</typeStatus>
, these renovations are present in several hydrothecae, becoming free part not only because of the end of the substrate (as seen in the
<typeStatus id="549BB8D5B702AD28FDEAC10119A53149" box="[595,698,1340,1364]" pageId="16" pageNumber="17" type="holotype">holotype</typeStatus>
). Another distinct and important difference is the presence of the rice-shaped microbasic mastigophore nematocysts. This
<typeStatus id="549BB8D5B702AD28FCA5C15C18533164" box="[796,844,1377,1401]" pageId="16" pageNumber="17">type</typeStatus>
of nematocyst is apparently the basic
<typeStatus id="549BB8D5B702AD28FAB1C15C1E273164" box="[1288,1336,1377,1401]" pageId="16" pageNumber="17">type</typeStatus>
of other
<taxonomicName id="4C207DF4B702AD28FF2EC1B91A183181" box="[151,263,1412,1436]" class="Hydrozoa" family="Lafoeidae" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="family">Lafoeidae</taxonomicName>
(except for
<taxonomicName id="4C207DF4B702AD28FE36C1B919393181" box="[399,550,1412,1436]" class="Hydrozoa" family="Lafoeidae" genus="Cryptolarella" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B954DA65B702AD28FE36C1B919393181" box="[399,550,1412,1436]" italics="true" pageId="16" pageNumber="17">Cryptolarella</emphasis>
</taxonomicName>
; see
<bibRefCitation id="EFB17B86B702AD28FDD8C1B818503181" author="Marques" box="[609,847,1412,1436]" pageId="16" pageNumber="17" refString="Marques, A. C., Pena Cantero, A. L. &amp; Migotto, A. E. (2006 a) An overview of the phylogeny of the families Lafoeidae and Hebellidae (Hydrozoa: Leptothecata): their composition and classification. Invertebrate Systematics, 20, 43 - 58." type="journal article" year="2006" yearSuffix="a">
Marques
<emphasis id="B954DA65B702AD28FD73C1B8181D3181" box="[714,770,1412,1436]" italics="true" pageId="16" pageNumber="17">et al.</emphasis>
2006a
</bibRefCitation>
) and its occurrence would be expected in
<taxonomicName id="4C207DF4B702AD28FA9EC1B81BD131DD" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FA9EC1B81BD131DD" italics="true" pageId="16" pageNumber="17">F. parasiticum</emphasis>
</taxonomicName>
as well. However, after 5 preparations, only one of these nematocysts was seen. The rarity of the nematocyst is, however, indicative of the difficulties in assigning its presence in the species of
<taxonomicName id="4C207DF4B702AD28FB8CC1F11F8B31F9" box="[1077,1172,1484,1508]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B954DA65B702AD28FB8CC1F11F8B31F9" box="[1077,1172,1484,1508]" italics="true" pageId="16" pageNumber="17">Filellum</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B9F0677B702AD28FF7CC1CD1BF13351" blockId="16.[151,1437,151,2012]" pageId="16" pageNumber="17">
<bibRefCitation id="EFB17B86B702AD28FF7CC1CD19BE3215" author="Antsulevich" box="[197,673,1520,1544]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich and Vervoort (1993: 431433)</bibRefCitation>
examined 18 colonies, one of them fertile, equally gathered from the Sea of Okhotsk (northern part, at
<quantity id="4CD8AB92B702AD28FDBCC22919553231" box="[517,586,1556,1580]" metricMagnitude="2" metricUnit="m" metricValue="1.2" pageId="16" pageNumber="17" unit="m" value="120.0">120 m</quantity>
and
<quantity id="4CD8AB92B702AD28FD39C22919D73231" box="[640,712,1556,1580]" metricMagnitude="2" metricUnit="m" metricValue="1.5" pageId="16" pageNumber="17" unit="m" value="150.0">150 m</quantity>
; central part, SE from St Jonas Is., at
<quantity id="4CD8AB92B702AD28FBDBC2291FB83231" box="[1122,1191,1556,1580]" metricMagnitude="2" metricUnit="m" metricValue="1.47" pageId="16" pageNumber="17" unit="m" value="147.0">147 m</quantity>
and
<quantity id="4CD8AB92B702AD28FB64C2291E3B3231" box="[1245,1316,1556,1580]" metricMagnitude="2" metricUnit="m" metricValue="1.6" pageId="16" pageNumber="17" unit="m" value="160.0">160 m</quantity>
, and SE of Cape Terpeniya, Sakhalin Is., at
<quantity id="4CD8AB92B702AD28FE4EC2051920324D" box="[503,575,1592,1616]" metricMagnitude="2" metricUnit="m" metricValue="3.96" pageId="16" pageNumber="17" unit="m" value="396.0">396 m</quantity>
,
<quantity id="4CD8AB92B702AD28FDF0C2051991324D" box="[585,654,1592,1616]" metricMagnitude="2" metricUnit="m" metricValue="7.5" pageId="16" pageNumber="17" unit="m" value="750.0">750 m</quantity>
and
<quantity id="4CD8AB92B702AD28FD7BC2051842324D" box="[706,861,1592,1616]" metricMagnitude="3" metricUnit="m" metricValue="1.98" metricValueMax="2.0" metricValueMin="1.96" pageId="16" pageNumber="17" unit="m" value="1980.0" valueMax="2000.0" valueMin="1960.0">19602000 m</quantity>
), growing on
<taxonomicName id="4C207DF4B702AD28FC4AC2051FCF324D" box="[1011,1232,1592,1616]" class="Hydrozoa" family="Sertulariidae" genus="Abietinaria" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="abietina">
<emphasis id="B954DA65B702AD28FC4AC2051FCF324D" box="[1011,1232,1592,1616]" italics="true" pageId="16" pageNumber="17">Abietinaria abietina</emphasis>
</taxonomicName>
, although one was growing on
<taxonomicName id="4C207DF4B702AD28FEA7C2611A923269" box="[286,397,1628,1652]" class="Hydrozoa" family="Sertulariidae" genus="Sertularia" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B954DA65B702AD28FEA7C2611A923269" box="[286,397,1628,1652]" italics="true" pageId="16" pageNumber="17">Sertularia</emphasis>
</taxonomicName>
sp. The fertile colony had a coppinia and, therefore, the authors transferred the species to the genus
<taxonomicName id="4C207DF4B702AD28FF66C2BD1A233285" box="[223,316,1664,1688]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="genus">
<emphasis id="B954DA65B702AD28FF66C2BD1A233285" box="[223,316,1664,1688]" italics="true" pageId="16" pageNumber="17">Filellum</emphasis>
</taxonomicName>
, under the name
<taxonomicName id="4C207DF4B702AD28FDB8C2BC18963285" authority="Antsulevich, 1987" authorityName="Antsulevich" authorityYear="1987" box="[513,905,1664,1688]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FDB8C2BC19BF3285" box="[513,672,1665,1688]" italics="true" pageId="16" pageNumber="17">F. parasiticum</emphasis>
(
<bibRefCitation id="EFB17B86B702AD28FD09C2BD189E3285" author="Antsulevich" box="[688,897,1664,1688]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. (1987) Gidroidy shel'fa Kuril'skykh ostrovov (Hydroids from the shelf waters of Kurile Islands). Zoologicheskii Institut, Akademiya Nauk SSSR, Leningrad, 165 pp." type="book" year="1987">Antsulevich, 1987</bibRefCitation>
)
</taxonomicName>
. The material with coppinia does not constitute part of the
<typeStatus id="549BB8D5B702AD28FEB7C2981A2232A0" box="[270,317,1701,1725]" pageId="16" pageNumber="17">type</typeStatus>
series. Although it is supposedly present in the collections of the Zoological Institute of the Academy of Sciences of
<collectingCountry id="F33746E7B702AD28FE86C2F51A9732FD" box="[319,392,1736,1760]" name="Russia" pageId="16" pageNumber="17">Russia</collectingCountry>
(ZIRAS), St. Petersburg (see
<bibRefCitation id="EFB17B86B702AD28FD62C2F51F3432FD" author="Antsulevich" box="[731,1067,1736,1760]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich &amp; Vervoort 1993</bibRefCitation>
: 431), it could not be located (S. Stepanyants, pers. comm.). Reanalysis of the material described by
<bibRefCitation id="EFB17B86B702AD28FC2EC2D11E173319" author="Antsulevich" box="[919,1288,1772,1796]" pageId="16" pageNumber="17" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993">Antsulevich and Vervoort (1993)</bibRefCitation>
, with special emphasis on the cnidome composition, is most wanted because their specimen may possibly belong to a different species.
</paragraph>
<paragraph id="8B9F0677B702AD29FF7CC36A18BF3579" blockId="16.[151,1437,151,2012]" lastBlockId="17.[151,1436,151,356]" lastPageId="17" lastPageNumber="18" pageId="16" pageNumber="17">
The hydrothecae and hydrorhiza of
<taxonomicName id="4C207DF4B702AD28FDEFC36419FB336D" box="[598,740,1880,1904]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="adhaerens">
<emphasis id="B954DA65B702AD28FDEFC36419FB336D" box="[598,740,1880,1904]" italics="true" pageId="16" pageNumber="17">F. adhaerens</emphasis>
</taxonomicName>
form a mesh laying on the substrate, somewhat similar to the pattern observed in
<taxonomicName id="4C207DF4B702AD28FECCC340190A3389" box="[373,533,1917,1940]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FECCC340190A3389" box="[373,533,1917,1940]" italics="true" pageId="16" pageNumber="17">F. parasiticum</emphasis>
</taxonomicName>
. However,
<taxonomicName id="4C207DF4B702AD28FD21C34018283389" box="[664,823,1917,1940]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FD21C34018283389" box="[664,823,1917,1940]" italics="true" pageId="16" pageNumber="17">F. parasiticum</emphasis>
</taxonomicName>
was considered distinguishable “from other species of the genus by the long adnate part of hydrotheca and rather shorter free portion, by anastomosing hydrorhiza and closely packed hydrothecae forming a discontinuous carpet...the gonotheca of
<taxonomicName id="4C207DF4B702AD28FC48C3F81F9033C1" box="[1009,1167,1989,2012]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="16" pageNumber="17" phylum="Cnidaria" rank="species" species="parasiticum">
<emphasis id="B954DA65B702AD28FC48C3F81F9033C1" box="[1009,1167,1989,2012]" italics="true" pageId="16" pageNumber="17">F. parasiticum</emphasis>
</taxonomicName>
has a short neck lacking in
<emphasis id="B954DA65B703AD29FF0FC4A41A3B34AD" box="[182,292,153,176]" italics="true" pageId="17" pageNumber="18">F. s e r p e n s</emphasis>
(
<bibRefCitation id="EFB17B86B703AD29FE80C4AA1ACB34B2" author="Hassall" box="[313,468,151,175]" pageId="17" pageNumber="18" refString="Hassall, A. H. (1848) Definitions of three new British zoophytes. Zoologist, 6, 2223." type="journal article" year="1848">Hassall, 1848</bibRefCitation>
) (cf.
<bibRefCitation id="EFB17B86B703AD29FDACC4A519A734B2" author="Naumov" box="[533,696,151,175]" pageId="17" pageNumber="18" refString="Naumov, D. V. (1960) Gidroidi i gidromedusy morskikh, solonovatovodnykh i presnovodnykh basseinov SSSR. Opredeleteli pro faune SSSR, 70, 1 - 626." type="journal article" year="1960">Naumov 1960</bibRefCitation>
;
<bibRefCitation id="EFB17B86B703AD29FD7FC4AA19E134B2" author="Naumov" box="[710,766,151,175]" pageId="17" pageNumber="18" refString="Naumov, D. V. (1969) Hydroids and Hydromedusae of the USSR. Israel Program for Scientific Translation, Jerusalem, 660 pp." type="book" year="1969">1969</bibRefCitation>
) and
<emphasis id="B954DA65B703AD29FCFBC4A418DF34AD" box="[834,960,153,176]" italics="true" pageId="17" pageNumber="18">F. s e r r a tu m</emphasis>
(
<bibRefCitation id="EFB17B86B703AD29FC6CC4AA1F7734B2" author="Clarke" box="[981,1128,151,175]" pageId="17" pageNumber="18" refString="Clarke, S. F. (1879) Report on the Hydroida collected during the Exploration of the Gulf Stream and Gulf of Mexico by Alexan- der Agassiz, 1877 - 78. Bulletin of the Museum of Comparative Zoology at Harvard College, in Cambridge, 5, 239 - 252." type="journal article" year="1879">Clarke, 1879</bibRefCitation>
) (cf.
<bibRefCitation id="EFB17B86B703AD29FB10C4AA1E2434B2" author="Ritchie" box="[1193,1339,151,175]" pageId="17" pageNumber="18" refString="Ritchie, J. (1911) Hydrozoa (hydroid zoophytes and Stylasterina) of the ' Thetis' expedition. Memoirs of the Australian Museum, 4, 807 - 869." type="journal article" year="1911">Ritchie 1911</bibRefCitation>
;
<bibRefCitation id="EFB17B86B703AD29FAF3C4AA1BCE34C9" author="Millard" pageId="17" pageNumber="18" refString="Millard, N. A. H. (1975) Monograph on the Hydroida of Southern Africa. Annals of the South African Museum, 68, 1 - 513." type="journal article" year="1975">Millard 1975</bibRefCitation>
)” (
<bibRefCitation id="EFB17B86B703AD29FF4BC4811FAD34C9" author="Antsulevich" box="[242,1202,188,212]" pageId="17" pageNumber="18" refString="Antsulevich, A. E. &amp; Vervoort, W. (1993) Some little-known species of hydroids (Cnidaria: Hydrozoa: Lafoeidae) and description of Papilionella pterophora gen. nov., spec. nov. (Sertulariidae). Zoologische Mededelingen, 67, 431 - 443." type="journal article" year="1993" yearSuffix="a">
Antsulevich and Vervoort 1993: 443, although we observed a short neck in
<taxonomicName id="4C207DF4B703AD29FB8DC4801FAD34C9" box="[1076,1202,189,212]" class="Hydrozoa" family="Lafoeidae" genus="Filellum" kingdom="Animalia" order="Leptothecata" pageId="17" pageNumber="18" phylum="Cnidaria" rank="species" species="serratum">
<emphasis id="B954DA65B703AD29FB8DC4801FAD34C9" box="[1076,1202,189,212]" italics="true" pageId="17" pageNumber="18">F. serratum</emphasis>
</taxonomicName>
</bibRefCitation>
), similar characteristics to those listed by
<bibRefCitation id="EFB17B86B703AD29FE2DC4DD19A234EA" author="Pena" box="[404,701,223,248]" pageId="17" pageNumber="18" refString="Pena Cantero, A. L., Garcia Carrascosa, A. M. &amp; Vervoort, W. (1998) On the species of Filellum Hincks, 1868 (Cnidaria: Hydrozoa) with the description of a new species. Journal of Natural History, 32, 297 - 315." type="journal article" year="1998">
Peña Cantero
<emphasis id="B954DA65B703AD29FD8DC4DC197034E5" box="[564,623,224,248]" italics="true" pageId="17" pageNumber="18">et al.</emphasis>
(1998
</bibRefCitation>
: 302: “characterized by the prostrate hydrothecae, typically fully adnate to the substratum, though towards the periphery of the colony the distal one-fourth to one-fifth of the hydrotheca curves upwards, being free from the substratum ... frequent anastomoses of the hydrothecae and hydrorhizal stolons forming a continuous layer completely covering the substratum”).
</paragraph>
</subSubSection>
</treatment>
</document>