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<document ID-DOI="10.35929/RSZ.0049" ID-GBIF-Dataset="172fa5c5-c0c4-4bd7-b710-d608237b8458" ID-ISSN="0035-418" ID-Zenodo-Dep="5639938" checkinTime="1635892563566" checkinUser="felipe" docAuthor="Schuchert, Peter &amp; Collins, Richard" docDate="2021" docId="D0118A7C5B1C0006FC92F8F3FE1F7DFC" docLanguage="en" docName="RevSuisseZool.128.2.237-356.pdf.imf" docOrigin="Revue suisse de Zoologie 128 (2)" docStyle="DocumentStyle:EA5207814960044D272DF5BE47DFF256.2:RevSuisseZool.2020-.journal_article.1cover" docStyleId="EA5207814960044D272DF5BE47DFF256" docStyleName="RevSuisseZool.2020-.journal_article.1cover" docStyleVersion="2" docTitle="Larsonia Boero, Bouillon &amp; Gravili 1991" docType="treatment" docVersion="9" lastPageNumber="254" masterDocId="2C28F2045B0C0014FFCFFF96FFDB7820" masterDocTitle="Hydromedusae observed during night dives in the Gulf Stream" masterLastPageNumber="356" masterPageNumber="237" pageNumber="252" updateTime="1683579073239" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title>Hydromedusae observed during night dives in the Gulf Stream</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Schuchert, Peter</mods:namePart>
<mods:affiliation>Muséum dhistoire naturelle, C. P. 6434, CH- 1211 Genève 6, Switzerland</mods:affiliation>
<mods:nameIdentifier type="email">peter.schuchert@ville-ge.ch</mods:nameIdentifier>
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<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Collins, Richard</mods:namePart>
<mods:affiliation>880 NE 33 rd Street, Boca Raton, Florida, USA</mods:affiliation>
<mods:nameIdentifier type="email">rc6684@icloud.com</mods:nameIdentifier>
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<mods:title>Revue suisse de Zoologie</mods:title>
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<mods:date>2021</mods:date>
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<mods:number>2021-10-21</mods:number>
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<mods:number>128</mods:number>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.5639982" ID-GBIF-Taxon="190510855" ID-Zenodo-Dep="5639982" LSID="urn:lsid:plazi:treatment:D0118A7C5B1C0006FC92F8F3FE1F7DFC" httpUri="http://treatment.plazi.org/id/D0118A7C5B1C0006FC92F8F3FE1F7DFC" lastPageId="18" lastPageNumber="254" pageId="16" pageNumber="252">
<subSubSection box="[861,1407,1893,1917]" pageId="16" pageNumber="252" type="nomenclature">
<paragraph blockId="16.[861,1407,1893,1917]" box="[861,1407,1893,1917]" pageId="16" pageNumber="252">
<heading bold="true" box="[861,1407,1893,1917]" centered="true" fontSize="10" level="2" pageId="16" pageNumber="252" reason="2">
<emphasis bold="true" box="[861,1407,1893,1917]" pageId="16" pageNumber="252">
Genus
<taxonomicName ID-CoL="7P8JG" ID-ENA="634928" authority="Boero, Bouillon &amp; Gravili, 1991" authorityName="Boero, Bouillon &amp; Gravili" authorityYear="1991" box="[940,1407,1893,1917]" class="Hydrozoa" family="Pandeidae" genus="Larsonia" kingdom="Animalia" order="Anthoathecata" pageId="16" pageNumber="252" phylum="Cnidaria" rank="genus">
<emphasis bold="true" box="[940,1039,1893,1917]" italics="true" pageId="16" pageNumber="252">Larsonia</emphasis>
<bibRefCitation author="Boero, Bouillon &amp; Gravili" box="[1046,1407,1893,1917]" firstAuthor="Boero" pageId="16" pageNumber="252" pagination="189 - 199" refId="ref65317" refString="Boero F., Bouillon J., Gravili C. 1991. The life cycle of Hydrichthys mirus (Cnidaria: Hydrozoa: Anthomedusae: Pandeidae). Zoological Journal of the Linnean Society 101 (2): 189 - 199." type="journal article" year="1991">Boero, Bouillon &amp; Gravili, 1991</bibRefCitation>
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<treatmentCitationGroup pageId="16" pageNumber="252">
<subSubSection box="[831,1303,1939,1961]" pageId="16" pageNumber="252" type="reference_group">
<paragraph blockId="16.[831,1437,1939,2077]" box="[831,1303,1939,1961]" pageId="16" pageNumber="252">
<treatmentCitation author="Haeckel E." box="[831,1299,1939,1961]" page="52" pageId="16" pageNumber="252" year="1879">
<taxonomicName authority="Haeckel, 1879: 52" authorityName="Haeckel" authorityPageNumber="52" authorityYear="1879" box="[831,1299,1939,1961]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="16" pageNumber="252" phylum="Cnidaria" rank="subGenus" subGenus="Stomotocanna">
<emphasis box="[831,932,1939,1960]" italics="true" pageId="16" pageNumber="252">Stomotoca</emphasis>
(
<emphasis box="[952,1089,1939,1960]" italics="true" pageId="16" pageNumber="252">Stomotocanna</emphasis>
)
<bibRefCitation author="Haeckel" box="[1109,1299,1939,1961]" firstAuthor="Haeckel" page="52" pageId="16" pageNumber="252" pagination="1 - 360" refId="ref68751" refString="Haeckel E. 1879. Das System der Medusen. Erster Teil einer Monographie der Medusen. Denkschriften der Medicinisch- Naturwissenschaftlichen Gesellschaft zu Jena 1: I-XX, 1 - 360, 20 pls." type="book chapter" year="1879">Haeckel, 1879: 52</bibRefCitation>
</taxonomicName>
</treatmentCitation>
;
</paragraph>
</subSubSection>
<subSubSection pageId="16" pageNumber="252" type="type_taxon">
<paragraph blockId="16.[831,1437,1939,2077]" pageId="16" pageNumber="252">
<typeStatus box="[1314,1355,1940,1961]" pageId="16" pageNumber="252">type</typeStatus>
species
<taxonomicName authority="Haeckel, 1879" authorityName="Haeckel" authorityYear="1879" box="[907,1269,1968,1990]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="16" pageNumber="252" phylum="Cnidaria" rank="species" species="pterophylla">
<emphasis box="[907,1124,1968,1989]" italics="true" pageId="16" pageNumber="252">Stomotoca pterophylla</emphasis>
<bibRefCitation author="Haeckel" box="[1130,1269,1968,1990]" firstAuthor="Haeckel" pageId="16" pageNumber="252" pagination="1 - 360" refId="ref68751" refString="Haeckel E. 1879. Das System der Medusen. Erster Teil einer Monographie der Medusen. Denkschriften der Medicinisch- Naturwissenschaftlichen Gesellschaft zu Jena 1: I-XX, 1 - 360, 20 pls." type="book chapter" year="1879">Haeckel, 1879</bibRefCitation>
</taxonomicName>
by monotypy.
</paragraph>
</subSubSection>
</treatmentCitationGroup>
<subSubSection pageId="16" pageNumber="252" type="reference_group">
<paragraph blockId="16.[831,1437,1939,2077]" pageId="16" pageNumber="252">
<treatmentCitationGroup pageId="16" pageNumber="252">
<treatmentCitation author="Boero F. &amp; Bouillon J. &amp; Gravili C." box="[831,1305,1997,2019]" page="198" pageId="16" pageNumber="252" year="1991">
<taxonomicName ID-CoL="7P8JG" authority="Boero, Bouillon &amp; Gravili, 1991: 198" authorityName="Boero, Bouillon &amp; Gravili" authorityPageNumber="198" authorityYear="1991" box="[831,1305,1997,2019]" class="Hydrozoa" family="Pandeidae" genus="Larsonia" kingdom="Animalia" order="Anthoathecata" pageId="16" pageNumber="252" phylum="Cnidaria" rank="genus">
<emphasis box="[831,918,1998,2019]" italics="true" pageId="16" pageNumber="252">Larsonia</emphasis>
<bibRefCitation author="Boero, Bouillon &amp; Gravili" box="[927,1305,1997,2019]" firstAuthor="Boero" page="198" pageId="16" pageNumber="252" pagination="189 - 199" refId="ref65317" refString="Boero F., Bouillon J., Gravili C. 1991. The life cycle of Hydrichthys mirus (Cnidaria: Hydrozoa: Anthomedusae: Pandeidae). Zoological Journal of the Linnean Society 101 (2): 189 - 199." type="journal article" year="1991">Boero, Bouillon &amp; Gravili, 1991: 198</bibRefCitation>
</taxonomicName>
</treatmentCitation>
;
<typeStatus box="[1317,1358,1997,2018]" pageId="16" pageNumber="252">type</typeStatus>
species
<taxonomicName authority="Haeckel, 1879" authorityName="Haeckel" authorityYear="1879" box="[907,1303,2026,2048]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="16" pageNumber="252" phylum="Cnidaria" rank="species" species="pterophylla">
<emphasis box="[907,1136,2026,2047]" italics="true" pageId="16" pageNumber="252">Stomotoca pterophylla</emphasis>
<bibRefCitation author="Haeckel" box="[1153,1303,2026,2048]" firstAuthor="Haeckel" pageId="16" pageNumber="252" pagination="1 - 360" refId="ref68751" refString="Haeckel E. 1879. Das System der Medusen. Erster Teil einer Monographie der Medusen. Denkschriften der Medicinisch- Naturwissenschaftlichen Gesellschaft zu Jena 1: I-XX, 1 - 360, 20 pls." type="book chapter" year="1879">Haeckel, 1879</bibRefCitation>
</taxonomicName>
by original designation.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<caption ID-DOI="http://doi.org/10.5281/zenodo.5639960" ID-Zenodo-Dep="5639960" httpUri="https://zenodo.org/record/5639960/files/figure.png" pageId="17" pageNumber="253" startId="17.[151,186,1882,1904]" targetBox="[151,1438,257,1825]" targetPageId="17">
<paragraph blockId="17.[151,1437,1882,1991]" pageId="17" pageNumber="253">
Fig. 9.
<taxonomicName authority="Peter, 2021" authorityName="Peter" authorityYear="2021" box="[227,428,1882,1903]" class="Hydrozoa" family="Pandeidae" genus="Pandeopsis" kingdom="Animalia" order="Anthoathecata" pageId="17" pageNumber="253" phylum="Cnidaria" rank="species" species="prolifera" status="n. spec.">
<emphasis box="[227,428,1882,1903]" italics="true" pageId="17" pageNumber="253">Pandeopsis prolifera</emphasis>
</taxonomicName>
<taxonomicNameLabel box="[434,508,1883,1904]" pageId="17" pageNumber="253" rank="species">n. spec.</taxonomicNameLabel>
(A-C) Holotype, BFLA4442, bell height 8 mm. (D-E) BFLA4260, size 5 mm. (A) Lateral view. (B) Bell margin in oral view. (C) Oblique view on aboral part, note shape of manubrium base which is not obviously squareshaped. (D) Lateral view. (E) Oblique view on aboral part, base is square-shaped, some incipient oocytes are visible, food items are in the lumen.
</paragraph>
</caption>
<subSubSection pageId="18" pageNumber="254" type="diagnosis">
<paragraph blockId="18.[151,756,257,566]" pageId="18" pageNumber="254">
<emphasis bold="true" box="[151,271,257,281]" pageId="18" pageNumber="254">Diagnosis:</emphasis>
Medusa with thick apical mesoglea and usually pointed apex; manubrium large, attached to a broad gastric peduncle, extending well beyond bell margin, mouth with crenulated lips; gonads in 8 adradial rows on manubrium, complexly transversely folded; two opposite perradial tentacles, numerous rudimentary bulbs on bell margin; no ocelli.
</paragraph>
<paragraph blockId="18.[151,756,257,566]" pageId="18" pageNumber="254">Hydroid parasitic on fish, with plate-like naked hydrorhiza, hydranth with no tentacles; gonozooid branched, producing at ends medusa buds.</paragraph>
</subSubSection>
<subSubSection pageId="18" pageNumber="254" type="discussion">
<paragraph blockId="18.[151,757,589,1500]" pageId="18" pageNumber="254">
<emphasis bold="true" box="[151,265,589,613]" pageId="18" pageNumber="254">Remarks:</emphasis>
<bibRefCitation author="Larson" box="[284,450,589,613]" firstAuthor="Larson" pageId="18" pageNumber="254" pagination="433 - 439" refId="ref70347" refString="Larson R. J. 1982. Life history of the hydromedusa Stomotoca pterophylla Haeckel and its ichtyoparasitic hydroid. Smithsonian contributions to the marine sciences 12: 433 - 439." type="journal article" year="1982">Larson (1982)</bibRefCitation>
reared medusae released from a parasitic hydroid of the genus
<taxonomicName authority="Fewkes, 1887" authorityName="Fewkes" authorityYear="1887" class="Hydrozoa" family="Hydrichthyidae" genus="Hydrichthys" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[624,756,621,645]" italics="true" pageId="18" pageNumber="254">Hydrichthys</emphasis>
<bibRefCitation author="Fewkes" box="[151,307,653,677]" firstAuthor="Fewkes" pageId="18" pageNumber="254" pagination="604 - 605" refId="ref67890" refString="Fewkes J. W. 1887. A hydroid parasitic on a fish. Nature, London 36: 604 - 605." type="journal article" year="1887">Fewkes, 1887</bibRefCitation>
</taxonomicName>
and could identify them as
<taxonomicName authority="Haeckel, 1879" authorityName="Haeckel" authorityYear="1879" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="pterophylla">
<emphasis italics="true" pageId="18" pageNumber="254">Stomotoca pterophylla</emphasis>
<bibRefCitation author="Haeckel" box="[286,450,684,708]" firstAuthor="Haeckel" pageId="18" pageNumber="254" pagination="1 - 360" refId="ref68751" refString="Haeckel E. 1879. Das System der Medusen. Erster Teil einer Monographie der Medusen. Denkschriften der Medicinisch- Naturwissenschaftlichen Gesellschaft zu Jena 1: I-XX, 1 - 360, 20 pls." type="book chapter" year="1879">Haeckel, 1879</bibRefCitation>
</taxonomicName>
. Because Larsons hydroid showed little host specificity and many
<taxonomicName authorityName="Fewkes" authorityYear="1887" box="[624,756,716,740]" class="Hydrozoa" family="Hydrichthyidae" genus="Hydrichthys" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[624,756,716,740]" italics="true" pageId="18" pageNumber="254">Hydrichthys</emphasis>
</taxonomicName>
polyps are rather similar, Larson concluded that they will also produce medusae referable to the genus
<taxonomicName authority="L. Agassiz, 1862" authorityName="L. Agassiz" authorityYear="1862" box="[151,472,811,835]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[151,264,811,834]" italics="true" pageId="18" pageNumber="254">Stomotoca</emphasis>
L.
<bibRefCitation author="Agassiz A." box="[311,472,811,835]" pageId="18" pageNumber="254" refId="ref64002" refString="Agassiz A. 1862. In: Agassiz L. 1862." title="Agassiz L" type="book chapter" year="1862">Agassiz, 1862</bibRefCitation>
</taxonomicName>
. Therefore, he suggested to synonymize
<taxonomicName authorityName="Fewkes" authorityYear="1887" box="[327,458,843,867]" class="Hydrozoa" family="Hydrichthyidae" genus="Hydrichthys" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[327,458,843,867]" italics="true" pageId="18" pageNumber="254">Hydrichthys</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="L. Agassiz" authorityYear="1862" box="[522,635,843,866]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[522,635,843,866]" italics="true" pageId="18" pageNumber="254">Stomotoca</emphasis>
</taxonomicName>
. This was contested by
<bibRefCitation author="Boero &amp; Bouillon" box="[295,570,874,898]" firstAuthor="Boero" pageId="18" pageNumber="254" pagination="1 - 7" refId="ref65280" refString="Boero F., Bouillon J. 1989. The life cycles of Octotiara russelli and Stomotoca atra (Cnidaria, Anthomedusae, Pandeidae). Zoologica Scripta 18 (1): 1 - 7." type="journal article" year="1989">Boero &amp; Bouillon (1989)</bibRefCitation>
who could show that the
<typeStatus box="[241,287,907,931]" pageId="18" pageNumber="254">type</typeStatus>
species of
<emphasis box="[411,545,906,930]" italics="true" pageId="18" pageNumber="254">
<taxonomicName authorityName="L. Agassiz" authorityYear="1862" box="[411,524,906,929]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">Stomotoca</taxonomicName>
</emphasis>
<taxonomicName authority="L. Agassiz, 1862" authorityName="L. Agassiz" authorityYear="1862" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="atra">
<emphasis box="[554,626,906,930]" italics="true" pageId="18" pageNumber="254">S. atra</emphasis>
L.
<bibRefCitation author="Agassiz A." pageId="18" pageNumber="254" refId="ref64002" refString="Agassiz A. 1862. In: Agassiz L. 1862." title="Agassiz L" type="book chapter" year="1862">Agassiz, 1862</bibRefCitation>
</taxonomicName>
had a polyp stage that was completely different from
<taxonomicName authorityName="Fewkes" authorityYear="1887" box="[212,342,969,993]" class="Hydrozoa" family="Hydrichthyidae" genus="Hydrichthys" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[212,342,969,993]" italics="true" pageId="18" pageNumber="254">Hydrichthys</emphasis>
</taxonomicName>
(free living, with scattered tentacles). Moreover, the polyp of a tentatively identified
<taxonomicName authority="Fewkes, 1887" authorityName="Fewkes" authorityYear="1887" box="[151,534,1033,1057]" class="Hydrozoa" family="Hydrichthyidae" genus="Hydrichthys" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="mirus">
<emphasis box="[151,360,1033,1057]" italics="true" pageId="18" pageNumber="254">Hydrichthys mirus</emphasis>
<bibRefCitation author="Fewkes" box="[375,534,1033,1057]" firstAuthor="Fewkes" pageId="18" pageNumber="254" pagination="604 - 605" refId="ref67890" refString="Fewkes J. W. 1887. A hydroid parasitic on a fish. Nature, London 36: 604 - 605." type="journal article" year="1887">Fewkes, 1887</bibRefCitation>
</taxonomicName>
<typeStatus box="[578,624,1033,1057]" pageId="18" pageNumber="254">type</typeStatus>
species of the genus
<taxonomicName authorityName="Fewkes" authorityYear="1887" box="[281,413,1064,1088]" class="Hydrozoa" family="Hydrichthyidae" genus="Hydrichthys" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[281,413,1064,1088]" italics="true" pageId="18" pageNumber="254">Hydrichthys</emphasis>
</taxonomicName>
produced a
<taxonomicName authorityName="Hartlaub" authorityYear="1914" box="[605,746,1064,1088]" class="Hydrozoa" family="Pandeidae" genus="Leuckartiara" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[605,746,1064,1088]" italics="true" pageId="18" pageNumber="254">Leuckartiara</emphasis>
</taxonomicName>
- like medusa (
<bibRefCitation author="Boero" box="[304,518,1096,1120]" etAl="et al." firstAuthor="Boero" pageId="18" pageNumber="254" pagination="189 - 199" refId="ref65317" refString="Boero F., Bouillon J., Gravili C. 1991. The life cycle of Hydrichthys mirus (Cnidaria: Hydrozoa: Anthomedusae: Pandeidae). Zoological Journal of the Linnean Society 101 (2): 189 - 199." type="journal article" year="1991">
Boero
<emphasis box="[383,442,1096,1120]" italics="true" pageId="18" pageNumber="254">et al.</emphasis>
, 1991
</bibRefCitation>
). Because
<taxonomicName authorityName="Haeckel" authorityYear="1879" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="pterophylla">
<emphasis italics="true" pageId="18" pageNumber="254">Stomotoca pterophylla</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="L. Agassiz" authorityYear="1862" box="[334,503,1128,1152]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="atra">
<emphasis box="[334,503,1128,1152]" italics="true" pageId="18" pageNumber="254">Stomotoca atra</emphasis>
</taxonomicName>
have different polyps,
<bibRefCitation author="Boero" box="[151,367,1159,1184]" etAl="et al." firstAuthor="Boero" pageId="18" pageNumber="254" pagination="189 - 199" refId="ref65317" refString="Boero F., Bouillon J., Gravili C. 1991. The life cycle of Hydrichthys mirus (Cnidaria: Hydrozoa: Anthomedusae: Pandeidae). Zoological Journal of the Linnean Society 101 (2): 189 - 199." type="journal article" year="1991">
Boero
<emphasis box="[227,286,1159,1183]" italics="true" pageId="18" pageNumber="254">et al.</emphasis>
(1991)
</bibRefCitation>
proposed the new genus
<taxonomicName authorityName="Boero, Bouillon &amp; Gravili" authorityYear="1991" box="[659,756,1160,1183]" class="Hydrozoa" family="Pandeidae" genus="Larsonia" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[659,756,1160,1183]" italics="true" pageId="18" pageNumber="254">Larsonia</emphasis>
</taxonomicName>
for
<taxonomicName authorityName="Haeckel" authorityYear="1879" box="[193,348,1191,1215]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="pterophylla">
<emphasis box="[193,348,1191,1215]" italics="true" pageId="18" pageNumber="254">S. pterophylla</emphasis>
</taxonomicName>
. Boero
<emphasis box="[442,500,1191,1215]" italics="true" pageId="18" pageNumber="254">et al.</emphasis>
must have overlooked that
<bibRefCitation author="Haeckel" box="[200,368,1223,1247]" firstAuthor="Haeckel" pageId="18" pageNumber="254" pagination="1 - 360" refId="ref68751" refString="Haeckel E. 1879. Das System der Medusen. Erster Teil einer Monographie der Medusen. Denkschriften der Medicinisch- Naturwissenschaftlichen Gesellschaft zu Jena 1: I-XX, 1 - 360, 20 pls." type="book chapter" year="1879">Haeckel (1879)</bibRefCitation>
had already introduced a subgenus name for
<taxonomicName authorityName="Haeckel" authorityYear="1879" box="[254,403,1254,1278]" class="Hydrozoa" family="Pandeidae" genus="Stomotoca" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="species" species="pterophylla">
<emphasis box="[254,403,1254,1278]" italics="true" pageId="18" pageNumber="254">S. pterophylla</emphasis>
</taxonomicName>
, namely
<emphasis box="[502,655,1255,1278]" italics="true" pageId="18" pageNumber="254">Stomotocanna</emphasis>
<bibRefCitation author="Haeckel" firstAuthor="Haeckel" pageId="18" pageNumber="254" pagination="1 - 360" refId="ref68751" refString="Haeckel E. 1879. Das System der Medusen. Erster Teil einer Monographie der Medusen. Denkschriften der Medicinisch- Naturwissenschaftlichen Gesellschaft zu Jena 1: I-XX, 1 - 360, 20 pls." type="book chapter" year="1879">Haeckel, 1879</bibRefCitation>
. As a subgenus level name automatically also becomes available at the genus level,
<taxonomicName authority="Boero, Bouillon &amp; Gravili, 1991" authorityName="Boero, Bouillon &amp; Gravili" authorityYear="1991" class="Hydrozoa" family="Pandeidae" genus="Larsonia" kingdom="Animalia" order="Anthoathecata" pageId="18" pageNumber="254" phylum="Cnidaria" rank="genus">
<emphasis box="[577,674,1319,1342]" italics="true" pageId="18" pageNumber="254">Larsonia</emphasis>
<bibRefCitation author="Boero, Bouillon &amp; Gravili" firstAuthor="Boero" pageId="18" pageNumber="254" pagination="189 - 199" refId="ref65317" refString="Boero F., Bouillon J., Gravili C. 1991. The life cycle of Hydrichthys mirus (Cnidaria: Hydrozoa: Anthomedusae: Pandeidae). Zoological Journal of the Linnean Society 101 (2): 189 - 199." type="journal article" year="1991">Boero, Bouillon &amp; Gravili, 1991</bibRefCitation>
</taxonomicName>
is a junior synonym of
<emphasis box="[151,304,1382,1405]" italics="true" pageId="18" pageNumber="254">Stomotocanna</emphasis>
. However, because Haeckels name has not been used since its introduction and in the interest of nomenclatural stability, it should not be reactivated (ICZN, paragraph 23.9.1.1.)
</paragraph>
</subSubSection>
</treatment>
</document>