<documentid="5DD8A9E84C0C763D2ED722EFAB7F0ED6"ID-DOI="10.5852/ejt.2020.720.1121"ID-GBIF-Dataset="3e326079-e0cd-4a5f-9b58-5d24eccb331b"ID-ISSN="2118-9773"ID-Zenodo-Dep="4106763"ID-ZooBank="F0B07E69-BB75-4AB2-ABD4-339254FBC390"IM.illustrations_approvedBy="valdenar"IM.materialsCitations_approvedBy="valdenar"IM.metadata_approvedBy="valdenar"IM.tables_approvedBy="valdenar"IM.taxonomicNames_approvedBy="felipe"IM.treatments_approvedBy="valdenar"checkinTime="1603123887628"checkinUser="valdenar"docAuthor="Risaro, Jessica, Williams, Gary C., Pereyra, Daniela & Lauretta, Daniel"docDate="2020"docId="03B9AB31FFE94437FE21FD7A0FBA8731"docLanguage="en"docName="ejt-720_risaro_williams_pereyra.pdf"docOrigin="European Journal of Taxonomy 720"docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1"docStyleId="EF2B578F1D15862ADE45B0C07C620911"docStyleName="EJT.2018-.journal_article.type1"docStyleVersion="14"docTitle="Umbellula pomona Risaro, Williams & Lauretta 2020, sp. nov."docType="treatment"docUuid="77FCDEF4-AAE3-4BB5-BAB2-1EDAA4B19439"docUuidSource="ZooBank"docVersion="15"lastPageNumber="132"masterDocId="FF80D349FFEF443CFFEAFFFB0B3B8536"masterDocTitle="Umbellula pomona sp. nov., a new sea pen from Mar del Plata Submarine Canyon (Cnidaria: Octocorallia: Pennatulacea)"masterLastPageNumber="143"masterPageNumber="121"pageNumber="127"updateTime="1733486937508"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0"zenodo-license-figures="CC-BY-4.0"zenodo-license-treatments="UNSPECIFIED">
<mods:titleid="9E135CD4579E08769085E8C320AEA7A3">Umbellula pomona sp. nov., a new sea pen from Mar del Plata Submarine Canyon (Cnidaria: Octocorallia: Pennatulacea)</mods:title>
<mods:affiliationid="7EA674E7F6B11DF8AEF845A599EA0DB2">Department of Invertebrate Zoology and Geology, California Academy of Sciences, Golden Gate Park, San Francisco, California 94118, USA.</mods:affiliation>
<taxonomicNameid="4C1061A4FFE9443AFE21FD7A0F3C87AA"ID-CoL="8RW37"authority="Risaro, Williams & Lauretta"authorityName="Risaro, Williams & Lauretta"authorityYear="2020"box="[459,1031,641,668]"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="6"pageNumber="127"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
<figureCitationid="132B06A2FFE9443AFD0DFD3C087687D4"box="[743,845,711,738]"captionStart-0="Fig"captionStart-1="Fig"captionStart-2="Fig"captionStart-3="Fig"captionStart-4="Fig"captionStart-5="Fig"captionStartId-0="7.[189,232,907,933]"captionStartId-1="7.[189,232,1918,1944]"captionStartId-2="8.[189,232,1952,1978]"captionStartId-3="9.[189,232,1958,1984]"captionStartId-4="10.[189,232,1958,1984]"captionStartId-5="11.[189,232,1958,1984]"captionTargetBox-0="[195,1392,271,864]"captionTargetBox-1="[239,1349,1135,1879]"captionTargetBox-2="[189,1392,830,1909]"captionTargetBox-3="[195,1391,842,1912]"captionTargetBox-4="[195,1393,840,1913]"captionTargetBox-5="[200,1392,834,1913]"captionTargetId-0="figure-12@7.[189,1398,265,870]"captionTargetId-1="figure-85@7.[234,1354,1130,1884]"captionTargetId-2="figure-235@8.[189,1398,824,1909]"captionTargetId-3="figure-224@9.[189,1398,834,1919]"captionTargetId-4="figure-271@10.[189,1398,834,1919]"captionTargetId-5="figure-163@11.[189,1398,828,1913]"captionTargetPageId-0="7"captionTargetPageId-1="7"captionTargetPageId-2="8"captionTargetPageId-3="9"captionTargetPageId-4="10"captionTargetPageId-5="11"captionText-0="Fig. 2. A. General aspect of Umbellula pomona Risaro, Williams & Lauretta sp. nov. A. Holotype (MACN-IN 42608). B. Detail of the terminal cluster of paratype A (MACN-IN 42609), showing three autozooids that form the terminal cluster and amplifications of sclerites (up) and siphonozooids (down). Abbreviations: CP = central polyp; LP = lateral polyp; Pd = peduncle; R = rachis; T = tentacle; S = siphonozooids; Scl = sclerites."captionText-1="Fig. 3. Transversal section of the central axis of paratype B of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42609). A. Transversal section of the central axis between the peduncle and the rachis. B. Transversal section of the central axis near the terminal cluster."captionText-2="Fig. 4. Variability of sizes and ornamentations of the rachis’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."captionText-3="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."captionText-4="Fig. 6. Variability of sizes and ornamentations of the tentacles’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."captionText-5="Fig. 7. Variability of sizes and ornamentations of the pinnules’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi-0="http://doi.org/10.5281/zenodo.4106767"figureDoi-1="http://doi.org/10.5281/zenodo.4106769"figureDoi-2="http://doi.org/10.5281/zenodo.4106771"figureDoi-3="http://doi.org/10.5281/zenodo.4106773"figureDoi-4="http://doi.org/10.5281/zenodo.4106775"figureDoi-5="http://doi.org/10.5281/zenodo.4106777"httpUri-0="https://zenodo.org/record/4106767/files/figure.png"httpUri-1="https://zenodo.org/record/4106769/files/figure.png"httpUri-2="https://zenodo.org/record/4106771/files/figure.png"httpUri-3="https://zenodo.org/record/4106773/files/figure.png"httpUri-4="https://zenodo.org/record/4106775/files/figure.png"httpUri-5="https://zenodo.org/record/4106777/files/figure.png"pageId="6"pageNumber="127">Figs 2–7</figureCitation>
<taxonomicNameid="4C1061A4FFE9443AFF57FCCC0A998667"authority="Risaro & Williams & Pereyra & Lauretta, 2020"authorityName="Risaro & Williams & Pereyra & Lauretta"authorityYear="2020"box="[189,418,823,849]"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="6"pageNumber="127"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
with three autozooids in its terminal cluster, a central well-developed polyp and two lateral, symmetric and smaller ones. It presents large sclerites in all its tissues as well as siphonozooids all along the rachis. Its central axis is circular in cross section all along its extension, and does not vary throughout the colony.
<locationid="8ECF4CFCFFE9443AFBA7FB330A208033"LSID="urn:lsid:plazi:treatment:03B9AB31FFE94437FE21FD7A0FBA8731:8ECF4CFCFFE9443AFBA7FB330A208033"latitude="-38.031883"longLatPrecision="1"longitude="-53.65447"name="Mar del Plata Submarine Canyon"pageId="6"pageNumber="127">Mar del Plata Submarine Canyon</location>
<locationid="8ECF4CFCFFE9443AFC3CFA6D0E498086"LSID="urn:lsid:plazi:treatment:03B9AB31FFE94437FE21FD7A0FBA8731:8ECF4CFCFFE9443AFC3CFA6D0E498086"box="[982,1394,1430,1456]"latitude="-38.0885"longLatPrecision="1"longitude="-53.666466"name="Mar del Plata Submarine Canyon"pageId="6"pageNumber="127">Mar del Plata Submarine Canyon</location>
The colony looks rugous in all its extension, especially the terminal cluster of autozooids. The color of the polyps, rachis and the peduncle is white or light yellow (preserved). The
in length. It has a terminal cluster of three autozooids with tentacles, one central and larger polyp growing on the distal-most region of the rachis, and two smaller but well-developed lateral polyps growing at the base of the central one (
<figureCitationid="132B06A2FFE9443AFDECF922097483C5"box="[518,591,1753,1779]"captionStart="Fig"captionStartId="7.[189,232,907,933]"captionTargetBox="[195,1392,271,864]"captionTargetId="figure-12@7.[189,1398,265,870]"captionTargetPageId="7"captionText="Fig. 2. A. General aspect of Umbellula pomona Risaro, Williams & Lauretta sp. nov. A. Holotype (MACN-IN 42608). B. Detail of the terminal cluster of paratype A (MACN-IN 42609), showing three autozooids that form the terminal cluster and amplifications of sclerites (up) and siphonozooids (down). Abbreviations: CP = central polyp; LP = lateral polyp; Pd = peduncle; R = rachis; T = tentacle; S = siphonozooids; Scl = sclerites."figureDoi="http://doi.org/10.5281/zenodo.4106767"httpUri="https://zenodo.org/record/4106767/files/figure.png"pageId="6"pageNumber="127">Fig. 2</figureCitation>
in length, and its appearance is soft and smooth. The autozooids of the cluster grow with a kind of orientation determining a ‘dorsal’ region where the axis inserts and a ‘ventral’ region towards which the polyps come together (
<figureCitationid="132B06A2FFE74434FD1EFEF208008415"box="[756,827,265,291]"captionStart="Fig"captionStartId="7.[189,232,907,933]"captionTargetBox="[195,1392,271,864]"captionTargetId="figure-12@7.[189,1398,265,870]"captionTargetPageId="7"captionText="Fig. 2. A. General aspect of Umbellula pomona Risaro, Williams & Lauretta sp. nov. A. Holotype (MACN-IN 42608). B. Detail of the terminal cluster of paratype A (MACN-IN 42609), showing three autozooids that form the terminal cluster and amplifications of sclerites (up) and siphonozooids (down). Abbreviations: CP = central polyp; LP = lateral polyp; Pd = peduncle; R = rachis; T = tentacle; S = siphonozooids; Scl = sclerites."figureDoi="http://doi.org/10.5281/zenodo.4106767"httpUri="https://zenodo.org/record/4106767/files/figure.png"pageId="8"pageNumber="129">Fig. 2</figureCitation>
). The siphonozooids are numerous and resemble small white dots, and are distributed all along the rachis from the base of the autozooids to the middle of the rachis. These polyps are circular and inconspicuous; and have a diameter of about 393 ± 93 μm (299–486 μm, N = 36).
<taxonomicNameid="4C1061A4FFE8443BFDC8FC700F578690"authority="Risaro, Williams & Lauretta"authorityName="Risaro, Williams & Lauretta"authorityYear="2020"box="[546,1132,907,934]"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="7"pageNumber="128"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
. Detail of the terminal cluster of paratype A (MACN-IN 42609), showing three autozooids that form the terminal cluster and amplifications of sclerites (up) and siphonozooids (down). Abbreviations: CP = central polyp; LP = lateral polyp; Pd = peduncle; R = rachis; T = tentacle; S = siphonozooids; Scl = sclerites.
Transversal section of the central axis of paratype B of
<taxonomicNameid="4C1061A4FFE8443BFC4CF8840A24828A"authority="Risaro, Williams & Lauretta"authorityName="Risaro, Williams & Lauretta"authorityYear="2020"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="7"pageNumber="128"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
Sclerites are conspicuous, along much of the length of the colony (polyps, rachis, tentacles and pinnules). They are translucent and colorless, rod-shaped and spindle-shaped with spines (
<figureCitationid="132B06A2FFE74434FBBFFE2C0FFB84C7"box="[1109,1216,471,497]"captionStart-0="Fig"captionStart-1="Fig"captionStart-2="Fig"captionStart-3="Fig"captionStartId-0="8.[189,232,1952,1978]"captionStartId-1="9.[189,232,1958,1984]"captionStartId-2="10.[189,232,1958,1984]"captionStartId-3="11.[189,232,1958,1984]"captionTargetBox-0="[189,1392,830,1909]"captionTargetBox-1="[195,1391,842,1912]"captionTargetBox-2="[195,1393,840,1913]"captionTargetBox-3="[200,1392,834,1913]"captionTargetId-0="figure-235@8.[189,1398,824,1909]"captionTargetId-1="figure-224@9.[189,1398,834,1919]"captionTargetId-2="figure-271@10.[189,1398,834,1919]"captionTargetId-3="figure-163@11.[189,1398,828,1913]"captionTargetPageId-0="8"captionTargetPageId-1="9"captionTargetPageId-2="10"captionTargetPageId-3="11"captionText-0="Fig. 4. Variability of sizes and ornamentations of the rachis’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."captionText-1="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."captionText-2="Fig. 6. Variability of sizes and ornamentations of the tentacles’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."captionText-3="Fig. 7. Variability of sizes and ornamentations of the pinnules’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi-0="http://doi.org/10.5281/zenodo.4106771"figureDoi-1="http://doi.org/10.5281/zenodo.4106773"figureDoi-2="http://doi.org/10.5281/zenodo.4106775"figureDoi-3="http://doi.org/10.5281/zenodo.4106777"httpUri-0="https://zenodo.org/record/4106771/files/figure.png"httpUri-1="https://zenodo.org/record/4106773/files/figure.png"httpUri-2="https://zenodo.org/record/4106775/files/figure.png"httpUri-3="https://zenodo.org/record/4106777/files/figure.png"pageId="8"pageNumber="129">Figs 4–7</figureCitation>
). Those present in the rachis are spindle-shaped, have triangular protuberances all along their length (
<figureCitationid="132B06A2FFE74434FB59FE010FC08723"box="[1203,1275,506,533]"captionStart="Fig"captionStartId="8.[189,232,1952,1978]"captionTargetBox="[189,1392,830,1909]"captionTargetId="figure-235@8.[189,1398,824,1909]"captionTargetPageId="8"captionText="Fig. 4. Variability of sizes and ornamentations of the rachis’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106771"httpUri="https://zenodo.org/record/4106771/files/figure.png"pageId="8"pageNumber="129">Fig. 4</figureCitation>
) and their sizes are 333.5 ± 71.1 μm (262.4–404.6 μm, N = 10), the body wall of the polyps has different
of sclerites, two of them are rough and rod-shaped, but differ in their measurements, while the others are spindle-shaped with spines along their lengths and also have different sizes (
<figureCitationid="132B06A2FFE74434FBD5FD9F0FBC8749"box="[1087,1159,612,639]"captionStart="Fig"captionStartId="9.[189,232,1958,1984]"captionTargetBox="[195,1391,842,1912]"captionTargetId="figure-224@9.[189,1398,834,1919]"captionTargetPageId="9"captionText="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106773"httpUri="https://zenodo.org/record/4106773/files/figure.png"pageId="8"pageNumber="129">Fig. 5</figureCitation>
is rod-shaped and approximates 1446 ± 32.7 μm (1413.3–1478.7 μm, N = 5) in length (
<figureCitationid="132B06A2FFE74434FB42FD7C0E3C8794"box="[1192,1287,647,674]"captionStart="Fig"captionStartId="9.[189,232,1958,1984]"captionTargetBox="[195,1391,842,1912]"captionTargetId="figure-224@9.[189,1398,834,1919]"captionTargetPageId="9"captionText="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106773"httpUri="https://zenodo.org/record/4106773/files/figure.png"pageId="8"pageNumber="129">Fig. 5A</figureCitation>
, smaller and spine-shaped, approximates 687 ± 45.6 μm (641.4–732.6 μm, N = 5) (
<figureCitationid="132B06A2FFE74434FB5CFD510FC287F3"box="[1206,1273,682,709]"captionStart="Fig"captionStartId="9.[189,232,1958,1984]"captionTargetBox="[195,1391,842,1912]"captionTargetId="figure-224@9.[189,1398,834,1919]"captionTargetPageId="9"captionText="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106773"httpUri="https://zenodo.org/record/4106773/files/figure.png"pageId="8"pageNumber="129">Fig. 5</figureCitation>
<figureCitationid="132B06A2FFE74434FB89FD350FF987DE"box="[1123,1218,717,744]"captionStart="Fig"captionStartId="9.[189,232,1958,1984]"captionTargetBox="[195,1391,842,1912]"captionTargetId="figure-224@9.[189,1398,834,1919]"captionTargetPageId="9"captionText="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106773"httpUri="https://zenodo.org/record/4106773/files/figure.png"pageId="8"pageNumber="129">Fig. 5D</figureCitation>
<figureCitationid="132B06A2FFE64435FE2BFEF2093C8412"box="[449,519,265,292]"captionStart="Fig"captionStartId="9.[189,232,1958,1984]"captionTargetBox="[195,1391,842,1912]"captionTargetId="figure-224@9.[189,1398,834,1919]"captionTargetPageId="9"captionText="Fig. 5. Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106773"httpUri="https://zenodo.org/record/4106773/files/figure.png"pageId="9"pageNumber="130">Fig. 5</figureCitation>
of sclerites have similar sizes, length approximates 534 ± 43.4 μm (490.6–577.4 μm, N = 5). Finally, the tentacles have rod-shaped sclerites (
<figureCitationid="132B06A2FFE64435FB03FED70E0B8471"box="[1257,1328,300,327]"captionStart="Fig"captionStartId="10.[189,232,1958,1984]"captionTargetBox="[195,1393,840,1913]"captionTargetId="figure-271@10.[189,1398,834,1919]"captionTargetPageId="10"captionText="Fig. 6. Variability of sizes and ornamentations of the tentacles’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106775"httpUri="https://zenodo.org/record/4106775/files/figure.png"pageId="9"pageNumber="130">Fig. 6</figureCitation>
) with two sizes: the larger ones are 1223.2 ± 280.1 μm (943.1–1503.3 μm, N = 5) (
<figureCitationid="132B06A2FFE64435FBD3FEB40F46845C"box="[1081,1149,335,362]"captionStart="Fig"captionStartId="10.[189,232,1958,1984]"captionTargetBox="[195,1393,840,1913]"captionTargetId="figure-271@10.[189,1398,834,1919]"captionTargetPageId="10"captionText="Fig. 6. Variability of sizes and ornamentations of the tentacles’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106775"httpUri="https://zenodo.org/record/4106775/files/figure.png"pageId="9"pageNumber="130">Fig. 6</figureCitation>
A–C) and the smaller ones are 632.8 ± 96.2 μm (536.6–729 μm, N = 5) in length (
<figureCitationid="132B06A2FFE64435FC40FE8908C884BB"box="[938,1011,370,397]"captionStart="Fig"captionStartId="10.[189,232,1958,1984]"captionTargetBox="[195,1393,840,1913]"captionTargetId="figure-271@10.[189,1398,834,1919]"captionTargetPageId="10"captionText="Fig. 6. Variability of sizes and ornamentations of the tentacles’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106775"httpUri="https://zenodo.org/record/4106775/files/figure.png"pageId="9"pageNumber="130">Fig. 6</figureCitation>
D–F), and those of the pinnules are rod-shaped with some protuberances along their lengths and their sizes are approximately 269.1 ± 50.3 μm (218.8–319.4 μm, N = 10) (
<figureCitationid="132B06A2FFE64435FD80FE42098984E5"box="[618,690,441,467]"captionStart="Fig"captionStartId="11.[189,232,1958,1984]"captionTargetBox="[200,1392,834,1913]"captionTargetId="figure-163@11.[189,1398,828,1913]"captionTargetPageId="11"captionText="Fig. 7. Variability of sizes and ornamentations of the pinnules’ sclerites of the holotype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42608)."figureDoi="http://doi.org/10.5281/zenodo.4106777"httpUri="https://zenodo.org/record/4106777/files/figure.png"pageId="9"pageNumber="130">Fig. 7</figureCitation>
). In both tissues the sclerites are placed along the main axis, not transversally.
Variability of sizes and ornamentations of the rachis’ sclerites of the holotype of
<taxonomicNameid="4C1061A4FFE74434FB11F85B095482E8"authority="Risaro, Williams & Lauretta"authorityName="Risaro, Williams & Lauretta"authorityYear="2020"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="8"pageNumber="129"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
C) is significantly smaller than the others, so we consider it could be a juvenile (
<figureCitationid="132B06A2FFE64435FDD0FD9409B887BF"box="[570,643,623,649]"captionStart="Fig"captionStartId="12.[189,232,1918,1944]"captionTargetBox="[195,1392,911,1873]"captionTargetId="figure-286@12.[189,1398,906,1879]"captionTargetPageId="12"captionText="Fig. 8. General aspect of the unique specimen of a juvenile-like paratype of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42609, paratype C). Abbreviations: CP = central polyp; LP = lateral polyp; R = rachis; PD = peduncle; T = tentacles."figureDoi="http://doi.org/10.5281/zenodo.4106779"httpUri="https://zenodo.org/record/4106779/files/figure.png"pageId="9"pageNumber="130">Fig. 8</figureCitation>
). The color of the three colonies is white or light yellow when preserved, all of them have three autozooids with the same grade of development as the
<figureCitationid="132B06A2FFE64435FE6DFD4D0ADA87E6"box="[391,481,694,720]"captionStart="Fig"captionStartId="7.[189,232,907,933]"captionTargetBox="[195,1392,271,864]"captionTargetId="figure-12@7.[189,1398,265,870]"captionTargetPageId="7"captionText="Fig. 2. A. General aspect of Umbellula pomona Risaro, Williams & Lauretta sp. nov. A. Holotype (MACN-IN 42608). B. Detail of the terminal cluster of paratype A (MACN-IN 42609), showing three autozooids that form the terminal cluster and amplifications of sclerites (up) and siphonozooids (down). Abbreviations: CP = central polyp; LP = lateral polyp; Pd = peduncle; R = rachis; T = tentacle; S = siphonozooids; Scl = sclerites."figureDoi="http://doi.org/10.5281/zenodo.4106767"httpUri="https://zenodo.org/record/4106767/files/figure.png"pageId="9"pageNumber="130">Fig. 2B</figureCitation>
) and its central axis is round in all its extension (
<figureCitationid="132B06A2FFE64435FBC4FD4D0F4D87E6"box="[1070,1142,694,720]"captionStart="Fig"captionStartId="7.[189,232,1918,1944]"captionTargetBox="[239,1349,1135,1879]"captionTargetId="figure-85@7.[234,1354,1130,1884]"captionTargetPageId="7"captionText="Fig. 3. Transversal section of the central axis of paratype B of Umbellula pomona Risaro, Williams & Lauretta sp. nov. (MACN-IN 42609). A. Transversal section of the central axis between the peduncle and the rachis. B. Transversal section of the central axis near the terminal cluster."figureDoi="http://doi.org/10.5281/zenodo.4106769"httpUri="https://zenodo.org/record/4106769/files/figure.png"pageId="9"pageNumber="130">Fig. 3</figureCitation>
, they are rugous in all their length because of the presence of conspicuous sclerites in the autozooids and rachis (
<figureCitationid="132B06A2FFE54436FB77FEF20FC28415"box="[1181,1273,265,291]"captionStart="Fig"captionStartId="7.[189,232,907,933]"captionTargetBox="[195,1392,271,864]"captionTargetId="figure-12@7.[189,1398,265,870]"captionTargetPageId="7"captionText="Fig. 2. A. General aspect of Umbellula pomona Risaro, Williams & Lauretta sp. nov. A. Holotype (MACN-IN 42608). B. Detail of the terminal cluster of paratype A (MACN-IN 42609), showing three autozooids that form the terminal cluster and amplifications of sclerites (up) and siphonozooids (down). Abbreviations: CP = central polyp; LP = lateral polyp; Pd = peduncle; R = rachis; T = tentacle; S = siphonozooids; Scl = sclerites."figureDoi="http://doi.org/10.5281/zenodo.4106767"httpUri="https://zenodo.org/record/4106767/files/figure.png"pageId="10"pageNumber="131">Fig. 2B</figureCitation>
Variability of sizes and ornamentations of the polyps’ sclerites of the holotype of
<taxonomicNameid="4C1061A4FFE64435FB11F85D095482D2"authority="Risaro, Williams & Lauretta"authorityName="Risaro, Williams & Lauretta"authorityYear="2020"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="9"pageNumber="130"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
Variability of sizes and ornamentations of the tentacles’ sclerites of the holotype of
<taxonomicNameid="4C1061A4FFE54436FB11F85D095482D2"authority="Risaro, Williams & Lauretta"authorityName="Risaro, Williams & Lauretta"authorityYear="2020"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="10"pageNumber="131"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
<taxonomicNameid="4C1061A4FFE44437FC83FE9A08CB844C"authority="Risaro & Williams & Pereyra & Lauretta, 2020"authorityName="Risaro & Williams & Pereyra & Lauretta"authorityYear="2020"box="[873,1008,353,378]"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="11"pageNumber="132"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
<taxonomicNameid="4C1061A4FFE44437FF57FE160AA48730"authority="Risaro & Williams & Pereyra & Lauretta, 2020"authorityName="Risaro & Williams & Pereyra & Lauretta"authorityYear="2020"box="[189,415,493,519]"class="Anthozoa"family="Umbellulidae"genus="Umbellula"kingdom="Animalia"order="Pennatulacea"pageId="11"pageNumber="132"phylum="Cnidaria"rank="species"species="pomona"status="sp. nov.">
<bibRefCitationid="EF8167D6FFE44437FCD1FE160F218731"author="Dolan"box="[827,1050,493,519]"etAl="et al."firstAuthor="Dolan"pageId="11"pageNumber="132"pagination="610 - 618"refId="ref8861"refString="Dolan E., Tyler P. A., Yesson C. & Rogers A. D. 2013. Phylogeny and systematics of deep-sea sea pens (Anthozoa: Octocorallia: Pennatulacea). Molecular Phylogenetics and Evolution 69: 610 - 618. https: // doi. org / 10.1016 / j. ympev. 2013.07.018"type="journal article"year="2013">
<figureCitationid="132B06A2FFE44437FBC1FE160F488731"box="[1067,1139,493,519]"captionStart="Fig"captionStartId="13.[189,232,1913,1939]"captionTargetBox="[164,1769,645,1493]"captionTargetId="figure-12@13.[163,1775,643,1497]"captionTargetPageId="13"captionText="Fig. 9. Phylogenetic reconstruction of the concatenated set of the two mitochondrial genes (mtMutS and ND2) based on the Bayesian analysis. Nodes include the Bayesian posterior probabilities. Arrows point to the new specimens of Umbellula Cuvier, 1798 included in the analysis."figureDoi="http://doi.org/10.5281/zenodo.14288728"httpUri="https://zenodo.org/record/14288728/files/figure.png"pageId="11"pageNumber="132">Fig. 9</figureCitation>