<documentid="E15F0C72B1924E26C08B4D670207E24B"ID-CLB-Dataset="298422"ID-DOI="10.11646/zootaxa.5463.2.1"ID-GBIF-Dataset="6a4fdf03-550a-415f-88c7-47783af83576"ID-ISSN="1175-5326"ID-Zenodo-Dep="11610751"ID-ZooBank="FDB4CE85-B07E-49C7-AABF-A67914F17E6B"IM.bibliography_approvedBy="valdenar"IM.illustrations_approvedBy="valdenar"IM.materialsCitations_approvedBy="valdenar"IM.metadata_approvedBy="felipe"IM.tables_requiresApprovalFor="GgImagineBatch,operationResults"IM.taxonomicNames_approvedBy="valdenar"IM.treatments_approvedBy="valdenar"checkinTime="1718181596006"checkinUser="plazi"docAuthor="Ott, B., Mcdaniel, N. & Humphrey, E."docDate="2024"docId="2823DE00C804FFA6CD9DFB9BFB752499"docLanguage="en"docName="zootaxa.5463.2.1.pdf"docOrigin="Zootaxa 5463 (2)"docSource="http://dx.doi.org/10.11646/zootaxa.5463.2.1"docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article"docStyleId="647186512141C8FC8976D5BCC54AEB7D"docStyleName="Zootaxa.2013-.journal_article"docStyleVersion="9"docTitle="Hymeniacidon globularis Ott & Mcdaniel & Humphrey 2024, n. sp."docType="treatment"docUuid="CCD8E346-515C-41C7-A8F5-A20EE67BE55A"docUuidSource="ZooBank"docVersion="5"lastPageNumber="182"masterDocId="D41AA678C81AFFB9CD0AFFA5FFCB2326"masterDocTitle="Fourteen new species of demosponges (Porifera) from three coastal fjords in southern British Columbia, Canada"masterLastPageNumber="200"masterPageNumber="151"pageNumber="181"updateTime="1718218068993"updateUser="ExternalLinkService"zenodo-license-document="CLOSED">
<mods:titleid="7D89C88333AD0D3162F9CD1FA2F1821D">Fourteen new species of demosponges (Porifera) from three coastal fjords in southern British Columbia, Canada</mods:title>
<mods:affiliationid="CEA13434AE4FF16CD0ABB928E05E8FEC">McDaniel Marine Surveys, 3540 West 35 th Ave, Vancouver, BC, Canada, V 6 N 2 N 5.</mods:affiliation>
<taxonomicNameid="678A1495C804FFA7CD9DFB9BFE01277F"authority="Ott & Mcdaniel & Humphrey, 2024"authorityName="Ott & Mcdaniel & Humphrey"authorityYear="2024"box="[151,458,1086,1113]"class="Demospongiae"family="Halichondriidae"genus="Hymeniacidon"kingdom="Animalia"order="Suberitida"pageId="30"pageNumber="181"phylum="Porifera"rank="species"species="globularis"status="sp. nov.">
<materialsCitationid="10E2654BC804FFA7CCB6FA9EFB4A265F"ID-GBIF-Occurrence="4876419343"collectingDate="2016-11-28"collectionCode="BC"collectorName="Stn & Sakinaw Rock & Sechelt Inlet & N. McDaniel"elevation="20"latitude="49.566467"longLatPrecision="1"longitude="-123.8029"pageId="30"pageNumber="181"specimenCode="RBCM 023-00001, 001, NM 351"specimenCount="1"typeStatus="holotype">
<specimenCodeid="F02CC76DC804FFA7CF25FA9EFCCC2673"box="[559,775,1339,1365]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">RBCM 023-00001</specimenCode>
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<specimenCodeid="F02CC76DC804FFA7CE04FA9EFCF22673"box="[782,825,1339,1365]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">001</specimenCode>
<collectingDateid="C470B03EC804FFA7CFCEFAFAFC95265F"box="[708,862,1375,1401]"pageId="30"pageNumber="181"value="2016-11-28">28 Nov 2016</collectingDate>
<specimenCodeid="F02CC76DC804FFA7C805FAFAFF2B26BB"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">RBCM 018- 00142</specimenCode>
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<specimenCodeid="F02CC76DC804FFA7CDE2FA26FED826BB"box="[232,275,1411,1437]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">004</specimenCode>
<specimenCodeid="F02CC76DC804FFA7CF27FA02FCCB26E7"box="[557,768,1446,1473]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">RBCM 018-00158</specimenCode>
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<specimenCodeid="F02CC76DC804FFA7CE02FA03FCFF26E7"box="[776,820,1446,1473]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">002</specimenCode>
<collectingDateid="C470B03EC804FFA7CF69FA6EFD3626C3"box="[611,765,1483,1509]"pageId="30"pageNumber="181"value="2011-05-19">19 May 2011</collectingDate>
<specimenCodeid="F02CC76DC804FFA7C921FA6EFAC826C3"box="[1067,1283,1482,1509]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">RBCM 024-00015</specimenCode>
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<specimenCodeid="F02CC76DC804FFA7C800FA6FFAFF26C3"box="[1290,1332,1482,1509]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">001</specimenCode>
<collectingDateid="C470B03EC804FFA7C96BFA4AFB3C252F"box="[1121,1271,1519,1545]"pageId="30"pageNumber="181"value="2016-11-27">27 Nov 2016</collectingDate>
<specimenCodeid="F02CC76DC804FFA7CF40F9FEFCE92553"box="[586,802,1627,1653]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">RBCM 023-00001</specimenCode>
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<specimenCodeid="F02CC76DC804FFA7CE23F9FEFC9F2553"box="[809,852,1627,1653]"collectionCode="RBCM"country="Canada"httpUri="http://grbio.org/cool/gayt-20cg"name="Royal British Columbia Museum"pageId="30"pageNumber="181"type="Museum">001</specimenCode>
diameter alive. All specimens form highly compressible puffballs. All specimens examined have one approximately centrally located osculum surrounded by a slightly raised rim,
<quantityid="6772C2F3C804FFA7C979F896FB2D246B"box="[1139,1254,1843,1869]"metricMagnitude="-3"metricUnit="m"metricValue="1.5"metricValueMax="2.0"metricValueMin="1.0"pageId="30"pageNumber="181"unit="mm"value="1.5"valueMax="2.0"valueMin="1.0">1 to 2 mm</quantity>
thick and forms the skin of a hollow subspherical body (
<figureCitationid="38B17393C804FFA7CF6AF8F2FD2E2457"box="[608,741,1879,1905]"captionStart="FIGURE 12"captionStartId="31.[152,255,1599,1623]"captionTargetBox="[151,1436,342,1572]"captionTargetId="figure-94@31.[151,1436,342,1572]"captionTargetPageId="31"captionText="FIGURE 12. Hymeniacidon globularis n. sp. Holotype RBCM 023-00001-001 (A) In-situ. (B) Sponge cross section. C) Cross section closeup of ectosome and the upper choanosome. (D) Subtylostyles."figureDoi="http://doi.org/10.5281/zenodo.11610797"httpUri="https://zenodo.org/record/11610797/files/figure.png"pageId="30"pageNumber="181">Figure 12B</figureCitation>
). Loose bundles of spicules arise from the inside surface and run vertically to the surface in discontinuous tracts (
<figureCitationid="38B17393C804FFA7CFEEF8DEFCA124B3"box="[740,874,1915,1941]"captionStart="FIGURE 12"captionStartId="31.[152,255,1599,1623]"captionTargetBox="[151,1436,342,1572]"captionTargetId="figure-94@31.[151,1436,342,1572]"captionTargetPageId="31"captionText="FIGURE 12. Hymeniacidon globularis n. sp. Holotype RBCM 023-00001-001 (A) In-situ. (B) Sponge cross section. C) Cross section closeup of ectosome and the upper choanosome. (D) Subtylostyles."figureDoi="http://doi.org/10.5281/zenodo.11610797"httpUri="https://zenodo.org/record/11610797/files/figure.png"pageId="30"pageNumber="181">Figure 12C</figureCitation>
). Many loose spicules and unoriented bundles fill spaces between vertical bundles (
<figureCitationid="38B17393C804FFA7CF01F83AFD44249F"box="[523,655,1951,1977]"captionStart="FIGURE 12"captionStartId="31.[152,255,1599,1623]"captionTargetBox="[151,1436,342,1572]"captionTargetId="figure-94@31.[151,1436,342,1572]"captionTargetPageId="31"captionText="FIGURE 12. Hymeniacidon globularis n. sp. Holotype RBCM 023-00001-001 (A) In-situ. (B) Sponge cross section. C) Cross section closeup of ectosome and the upper choanosome. (D) Subtylostyles."figureDoi="http://doi.org/10.5281/zenodo.11610797"httpUri="https://zenodo.org/record/11610797/files/figure.png"pageId="30"pageNumber="181">Figure 12C</figureCitation>
). Tracts are 30 to 50 µm thick and from 3 to 20 spicules across. Tracts are not systematically cross connected (no reticulation is formed) but are randomly cross connected by unoriented loose spicules or bispicular tracts. Choanosome tracts widen into brushes 200 to 300 µm from the surface and may penetrate the surface up to 100 µm. There is no specialized ectosome separable from the general skeletal structure.
</paragraph>
<paragraphid="A0356F16C805FFA6CDCDFF7AFDAE2267"blockId="31.[151,1436,151,321]"pageId="31"pageNumber="182">Given the highly compressible habitus, a live sponge will have large choanosomal aquiferous lacunae which are compressed immediately upon removal from water. Some relatively large lacunae (up to 300 µm across) are still present in flattened preserved specimens.</paragraph>
<taxonomicNameid="678A1495C805FFA6CC20F99AFDE72571"authority="Ott & Mcdaniel & Humphrey, 2024"authorityName="Ott & Mcdaniel & Humphrey"authorityYear="2024"box="[298,556,1599,1623]"class="Demospongiae"family="Halichondriidae"genus="Hymeniacidon"kingdom="Animalia"order="Suberitida"pageId="31"pageNumber="182"phylum="Porifera"rank="species"species="globularis"status="sp. nov.">
<figureCitationid="38B17393C805FFA6CC33F968FE0C25CE"box="[313,455,1741,1768]"captionStart="FIGURE 12"captionStartId="31.[152,255,1599,1623]"captionTargetBox="[151,1436,342,1572]"captionTargetId="figure-94@31.[151,1436,342,1572]"captionTargetPageId="31"captionText="FIGURE 12. Hymeniacidon globularis n. sp. Holotype RBCM 023-00001-001 (A) In-situ. (B) Sponge cross section. C) Cross section closeup of ectosome and the upper choanosome. (D) Subtylostyles."figureDoi="http://doi.org/10.5281/zenodo.11610797"httpUri="https://zenodo.org/record/11610797/files/figure.png"pageId="31"pageNumber="182">Figure 12 D</figureCitation>
). Spicules are exclusively straight subtylostyles with elliptical heads, cylindrical shafts and moderately short apices with slightly rounded tips (hastate). Many are polytylote, a frequent characteristic of the genus.
<bibRefCitationid="C41B12E7C805FFA6C9CFF89CFA9D2472"author="Ridley, S. O."box="[1221,1366,1849,1876]"pageId="31"pageNumber="182"pagination="107 - 141"refId="ref30638"refString="Ridley, S. O. (1881) XI. Spongida. Horny and Siliceous Sponges of Magellan Straits, S. W. Chili, and Atlantic off SW Brazil. In: Account of the Zoological Collections made during the Survey of H. M. S. ' Alert' in the Straits of Magellan and on the Coast of Patagonia. In: Gunther, A. (Ed.), Proceedings of the Zoological Society of London, 1881, pp. 107 - 141, pls. X - XI."type="journal article"year="1881">Ridley, 1881</bibRefCitation>
)
</taxonomicName>
from Magellan Straits; no depth information was provided by Ridley.
<bibRefCitationid="C41B12E7C805FFA6CE50F8F8FC26245E"author="Ridley, S. O."box="[858,1005,1885,1912]"pageId="31"pageNumber="182"pagination="107 - 141"refId="ref30638"refString="Ridley, S. O. (1881) XI. Spongida. Horny and Siliceous Sponges of Magellan Straits, S. W. Chili, and Atlantic off SW Brazil. In: Account of the Zoological Collections made during the Survey of H. M. S. ' Alert' in the Straits of Magellan and on the Coast of Patagonia. In: Gunther, A. (Ed.), Proceedings of the Zoological Society of London, 1881, pp. 107 - 141, pls. X - XI."type="journal article"year="1881">Ridley (1881</bibRefCitation>
, p. 115) describes the sponge as having a dermal membrane. Ridley’s sponge has shorter styles (based on Ridley’s figure) 77 x 13 µm and choanosome tracts penetrate the surface in tufts. The geographical separation makes conspecificity unlikely.
