treatments-xml/data/BF/4E/39/BF4E397FFFA231169786FB7DBE070185.xml
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<mods:title id="6ABED6C76A00E8AF70D57C04D9E25F91">Correcting sponge names: nomenclatural update of lower taxa level Porifera</mods:title>
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<paragraph id="37588869FFA231169786FB7DBFB703B4" blockId="69.[151,725,1189,1216]" box="[151,725,1189,1216]" pageId="69" pageNumber="70">
<heading id="6C103F05FFA231169786FB7DBFB703B4" bold="true" box="[151,725,1189,1216]" fontSize="11" level="2" pageId="69" pageNumber="70" reason="4">
<taxonomicName id="F0E7F3EAFFA231169786FB7DBFB703B4" ID-CoL="5PHYX" authority="Burton, 1934" authorityName="Burton" authorityYear="1934" box="[151,725,1189,1216]" class="Demospongiae" family="Isodictyidae" genus="Isodictya" kingdom="Animalia" order="Poecilosclerida" pageId="69" pageNumber="70" phylum="Porifera" rank="variety" species="delicata" variety="megachela">
<emphasis id="0593547BFFA231169786FB7DBFB703B4" bold="true" box="[151,725,1189,1216]" pageId="69" pageNumber="70">
<emphasis id="0593547BFFA231169786FB7DBC0903CB" bold="true" box="[151,363,1189,1216]" italics="true" pageId="69" pageNumber="70">Isodictya delicata</emphasis>
var.
<emphasis id="0593547BFFA2311696B9FB7DBF4803CB" bold="true" box="[424,554,1189,1216]" italics="true" pageId="69" pageNumber="70">megachela</emphasis>
Burton, 1934
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<paragraph id="37588869FFA231169786FB32BFD00209" blockId="69.[151,690,1258,1282]" box="[151,690,1258,1282]" pageId="69" pageNumber="70">
<treatmentCitationGroup id="17F7AF47FFA231169786FB32BFD00209" box="[151,690,1258,1282]" pageId="69" pageNumber="70">
<treatmentCitation id="B646AE78FFA231169786FB32BFCC0209" author="Burton, M." box="[151,686,1258,1282]" page="20" pageId="69" pageNumber="70" year="1934">
<taxonomicName id="F0E7F3EAFFA231169786FB32BFCC0209" ID-CoL="5PHYX" authority="Burton, 1934 b: 20" authorityName="Burton" authorityPageNumber="20" authorityYear="1934" box="[151,686,1258,1282]" class="Demospongiae" family="Isodictyidae" genus="Isodictya" kingdom="Animalia" order="Poecilosclerida" pageId="69" pageNumber="70" phylum="Porifera" rank="variety" species="delicata" variety="megachela">
<emphasis id="0593547BFFA231169786FB32BC8E0209" box="[151,492,1258,1282]" italics="true" pageId="69" pageNumber="70">Isodictya delicata var. megachela</emphasis>
<bibRefCitation id="5376F598FFA2311696E3FB32BFCC0209" author="Burton, M." box="[498,686,1258,1282]" pageId="69" pageNumber="70" pagination="1 - 58" refId="ref90022" refString="Burton, M. (1934 b) Sponges. In: Further Zoological Results of the Swedish Antarctic Expedition 1901 - 03 under the Direction of Dr. Otto Nordenskj ˆ ld. 3 (2). Norstedt &amp; S ˆ ner, Stockholm, pp. 1 - 58, pls. I - VIII." type="book chapter" year="1934">Burton, 1934b: 20</bibRefCitation>
</taxonomicName>
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.
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</paragraph>
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<subSubSection id="7FFDDBE2FFA231169786FAE8BE070185" pageId="69" pageNumber="70" type="materials_examined">
<paragraph id="37588869FFA231169786FAE8BE070185" blockId="69.[151,1436,1328,1679]" pageId="69" pageNumber="70">
The variety was described by Burton from Seymour Island, Grahamland,
<collectingCountry id="4FF0C8F9FFA2311694C0FAE8B92B0241" box="[977,1097,1328,1354]" name="Antarctica" pageId="69" pageNumber="70">Antarctica</collectingCountry>
,
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<geoCoordinate id="52D3EEAEFFA2311693C3FAE8B8300240" box="[1234,1362,1328,1355]" degrees="56.6333" direction="west" orientation="longitude" pageId="69" pageNumber="70" precision="5" value="-56.6333">56.6333°W</geoCoordinate>
, depth
<quantity id="F01F258CFFA231169786FA8CBD830264" box="[151,225,1364,1391]" metricMagnitude="2" metricUnit="m" metricValue="1.5" pageId="69" pageNumber="70" unit="m" value="150.0">150 m</quantity>
(
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presumably in the Stockholm Museum, with additional type material BMNH 1933.3.17.7, and three slides). The variety was erected on the basis of differences with the typical variety described by
<bibRefCitation id="5376F598FFA231169214FAA0BDA302BC" author="Thiele, J." pageId="69" pageNumber="70" pagination="407 - 496" refId="ref107730" refString="Thiele, J. (1905) Die Kiesel- und Hornschwamme der Sammlung Plate. Zoologische Jahrb ¸ cher, Supplement 6 (Fauna Chilensis III), 407 - 496, pls. 27 - 33. [https: // biodiversitylibrary. org / page / 14181992]" type="journal article" year="1905">Thiele (1905: 435</bibRefCitation>
as
<taxonomicName id="F0E7F3EAFFA2311697F6FA44BCB602BD" authorityName="Thiele" authorityYear="1905" box="[231,468,1436,1462]" class="Demospongiae" family="Desmacididae" genus="Desmacidon" kingdom="Animalia" order="Poecilosclerida" pageId="69" pageNumber="70" phylum="Porifera" rank="species" species="delicata">
<emphasis id="0593547BFFA2311697F6FA44BCB602BD" box="[231,468,1436,1462]" italics="true" pageId="69" pageNumber="70">Desmacidon delicata</emphasis>
</taxonomicName>
, from Admirality Sound,
<collectingCountry id="4FF0C8F9FFA2311695E7FA44BE5702BD" box="[758,821,1436,1462]" name="Chile" pageId="69" pageNumber="70">Chile</collectingCountry>
,
<geoCoordinate id="52D3EEAEFFA231169450FA44BEF902BC" box="[833,923,1436,1463]" degrees="54.31" direction="south" orientation="latitude" pageId="69" pageNumber="70" precision="555" value="-54.31">54.31°S</geoCoordinate>
<geoCoordinate id="52D3EEAEFFA2311694B3FA44BE9B02BC" box="[930,1017,1436,1463]" degrees="69.5" direction="west" orientation="longitude" pageId="69" pageNumber="70" precision="5555" value="-69.5">69.5°W</geoCoordinate>
, depth
<quantity id="F01F258CFFA23116935BFA44B9E702BC" box="[1098,1157,1436,1463]" metricMagnitude="1" metricUnit="m" metricValue="1.0" pageId="69" pageNumber="70" unit="m" value="10.0">10 m</quantity>
,
<typeStatus id="E85C36CBFFA231169380FA44B99102BD" box="[1169,1267,1436,1462]" pageId="69" pageNumber="70" type="holotype">holotype</typeStatus>
ZMB 3289) in shape (flabellate vs. finger-shaped in the typical variety) and spicule sizes (chelae 70 µm vs. 20 µm in the typical variety). According to
<bibRefCitation id="5376F598FFA231169684FA3CBF7902F5" author="Rios, P." box="[405,539,1508,1534]" pageId="69" pageNumber="70" refId="ref104721" refString="Rios, P. (2006) Esponjas del Orden Poecilosclerida de las campanas espanolas de bentos antartico. Ph. D. Thesis, Universidad de Santiago de Compostela-Spain, Santiago de Compostela, 552 pp. [in Spanish]." type="book" year="2006">Ríos (2006)</bibRefCitation>
and Ríos
<emphasis id="0593547BFFA23116959DFA3DBFA602F5" box="[652,708,1508,1534]" italics="true" pageId="69" pageNumber="70">et al.</emphasis>
(2020), there are also sigmas in the
<taxonomicName id="F0E7F3EAFFA23116934DFA3DB86702F5" box="[1116,1285,1508,1535]" class="Demospongiae" family="Desmacididae" genus="Desmacidon" kingdom="Animalia" order="Poecilosclerida" pageId="69" pageNumber="70" phylum="Porifera" rank="variety" species="delicata" variety="megachela">
var.
<emphasis id="0593547BFFA23116939DFA3CB86702F5" box="[1164,1285,1508,1534]" italics="true" pageId="69" pageNumber="70">megachela</emphasis>
</taxonomicName>
, not reported in the typical variety. Since both varieties are of sympatric occurrence in nearby Antarctic localities, infraspecific status is not warranted in this case.
<bibRefCitation id="5376F598FFA231169523F9F4BE62014D" author="Koltun, V. M." box="[562,768,1580,1606]" pageId="69" pageNumber="70" pagination="443 - 448" refId="ref99804" refString="Koltun, V. M. (1964) Sponges of the Antarctic. 1 Tetraxonida and Cornacuspongida. In: Pavlovskii, E. P., Andriyashev, A. P. &amp; Ushakov, P. V. (Eds.), Biological Reports of the Soviet Antarctic Expedition (1955 - 1958). Akademya Nauk SSSR, Moscow, pp. 6 - 133 + 443 - 448. [English translation, 1966, Israel Program for Scientific Translation]" type="journal article" year="1964">Koltun (1964: 41)</bibRefCitation>
suggested the varieties were subspecies, but the argument of sympatry applies
<emphasis id="0593547BFFA23116966EF989BC850161" box="[383,487,1616,1642]" italics="true" pageId="69" pageNumber="70">a fortiori</emphasis>
for species level. The differences appear sufficiently large. I propose to elevate the variety to a distinct species
<taxonomicName id="F0E7F3EAFFA2311696DCF9ACBE030185" authority="Burton, 1934 b" authorityName="Burton" authorityYear="1934" box="[461,865,1652,1679]" class="Demospongiae" family="Isodictyidae" genus="Isodictya" kingdom="Animalia" order="Poecilosclerida" pageId="69" pageNumber="70" phylum="Porifera" rank="species" species="megachela">
<emphasis id="0593547BFFA2311696DCF9ACBFD60185" box="[461,692,1652,1678]" italics="true" pageId="69" pageNumber="70">Isodictya megachela</emphasis>
<bibRefCitation id="5376F598FFA2311695AAF9ADBE030185" author="Burton, M." box="[699,865,1652,1679]" pageId="69" pageNumber="70" pagination="1 - 58" refId="ref90022" refString="Burton, M. (1934 b) Sponges. In: Further Zoological Results of the Swedish Antarctic Expedition 1901 - 03 under the Direction of Dr. Otto Nordenskj ˆ ld. 3 (2). Norstedt &amp; S ˆ ner, Stockholm, pp. 1 - 58, pls. I - VIII." type="book chapter" year="1934">Burton, 1934b</bibRefCitation>
</taxonomicName>
.
</paragraph>
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