335 lines
50 KiB
XML
335 lines
50 KiB
XML
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<mods:title id="79E55D3848E81D05183550C3A74A6870">Review of Oweniidae Rioja, 1917 (Annelida, Palaeoannelida) from Malaysia, with a description of two new species and a key to South China Sea species</mods:title>
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<mods:namePart id="F4E637B98AB5A46A2873DFC3FE155993">Ibrahim, Nur Fazne</mods:namePart>
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<mods:affiliation id="13C1107C4EB034D8E09372DE3A406E84">Institute of Oceanography and Environment (INOS), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu (Malaysia)</mods:affiliation>
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<mods:namePart id="2BD1E736FD676D90E34A9386B7677683">Villalobos-Guerrero, Tulio F.</mods:namePart>
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<mods:affiliation id="40A80FA1DE301D805ACD46BE99D3C7D8">Departamento Ecología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada, 22860, Ensenada, Baja California (Mexico)</mods:affiliation>
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<mods:affiliation id="CD5A780F99BF09BC9B48FA4F01FC2F4C">South China Sea Repository and Reference Centre (RRC), Institute of Oceanography and Environment, Universiti Malaysia Terengganu (INOS), 21030, Kuala Nerus, Terengganu (Malaysia)</mods:affiliation>
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<mods:title id="836818BCB781C3C4EAA33FDF7285AC77">Zoosystema</mods:title>
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<mods:date id="79DBBA2AE5B3AE2513FD15AEAC7AA7F5">2024</mods:date>
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(
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A-J)
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. —
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. South China Sea,
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•
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leg.;
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•
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,
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<collectorName id="26E5535FF5338E6DFEBFFDA84C422378" box="[268,347,517,541]" pageId="9" pageNumber="520">Ibrahim</collectorName>
|
||
leg.; decantation; UMTAnn 2187,
|
||
<specimenCode id="DBB69EF2F5338E6DFD0BFDA84C5C2352" collectionCode="LACM-AHF" pageId="9" pageNumber="520">LACM-AHF 13508-13509</specimenCode>
|
||
;
|
||
<collectionCode id="ED01AE4CF5338E6DFEE3FD8D4C9A235D" box="[336,387,544,568]" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="9" pageNumber="520">ZRC</collectionCode>
|
||
.
|
||
<specimenCode id="DBB69EF2F5338E6DFE35FD8D4F2F235D" box="[390,566,544,568]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="9" pageNumber="520">ANN 1618-1619</specimenCode>
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
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. —
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<materialsCitation id="3B783CD4F5338E6DFDBBFDFC4CD423F9" latitude="5.390472" longitude="103.11664" pageId="9" pageNumber="520">
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<emphasis id="B964EA9BF5338E6DFDBBFDFC4C3A23E7" bold="true" pageId="9" pageNumber="520">
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||
South
|
||
<collectingCountry id="F3077619F5338E6DFDF8FDFC4F90230C" box="[587,649,593,617]" name="China" pageId="9" pageNumber="520">China</collectingCountry>
|
||
Sea,
|
||
<collectingCountry id="F3077619F5338E6DFD73FDE24DB923E6" name="Malaysia" pageId="9" pageNumber="520">Malaysia</collectingCountry>
|
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,
|
||
<collectingRegion id="49D4F86BF5338E6DFF1EFDC74C3A23E7" box="[173,291,618,642]" country="Malaysia" name="Terengganu" pageId="9" pageNumber="520">Terengganu</collectingRegion>
|
||
</emphasis>
|
||
•
|
||
<specimenCount id="9D16FD00F5338E6DFE88FDC74CAD23E7" box="[315,436,618,642]" count="5" pageId="9" pageNumber="520" type="generic">5 specimens</specimenCount>
|
||
, Kuala Nerus, St. 1:
|
||
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,
|
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<geoCoordinate id="EE24504EF5338E6DFF37FD294C0B23F9" box="[132,274,644,668]" degrees="103" direction="east" minutes="06" orientation="longitude" pageId="9" pageNumber="520" precision="1" seconds="59.9" value="103.11664">103°06’59.9”E</geoCoordinate>
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,
|
||
<date id="FFAE1049F5338E6DFEAFFD294C8C23F9" box="[284,405,644,668]" pageId="9" pageNumber="520" value="2021-07-24">24.VII.2021</date>
|
||
; RRC
|
||
</materialsCitation>
|
||
•
|
||
<materialsCitation id="3B783CD4F5338E6DFE6CFD294E1823D3" latitude="5.406" longitude="103.09908" pageId="9" pageNumber="520">
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<specimenCount id="9D16FD00F5338E6DFE6CFD294F4B23F9" box="[479,594,644,668]" count="3" pageId="9" pageNumber="520" type="generic">3 specimens</specimenCount>
|
||
; Kuala Nerus; St. 3;
|
||
<geoCoordinate id="EE24504EF5338E6DFF31FD334C1B23D3" box="[130,258,670,694]" degrees="5" direction="north" minutes="24" orientation="latitude" pageId="9" pageNumber="520" precision="1" seconds="21.6" value="5.406">5°24’21.6”N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="EE24504EF5338E6DFEB9FD334C8223D3" box="[266,411,670,694]" degrees="103" direction="east" minutes="05" orientation="longitude" pageId="9" pageNumber="520" precision="1" seconds="56.7" value="103.09908">103°05’56.7”E</geoCoordinate>
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||
;
|
||
<date id="FFAE1049F5338E6DFE15FD324F3B23D2" box="[422,546,671,695]" pageId="9" pageNumber="520" value="2021-07-24">24.VII.2021</date>
|
||
; UMTAnn 2428-2435
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BAF3689F5338E6DFF37FD624FBD2383" blockId="9.[132,676,718,743]" box="[132,676,718,743]" pageId="9" pageNumber="520">
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|
||
<collectionCode id="ED01AE4CF5338E6DFF37FD624DAC2381" box="[132,181,719,742]" pageId="9" pageNumber="520">TYPE</collectionCode>
|
||
</smallCapsWord>
|
||
<smallCapsWord id="8D49A055F5338E6DFF0FFD794C0E2380" baselines="737" box="[188,279,724,741]" lowerCaseFontSize="7" mainFontSize="10" normCase="lower" normString="locality" pageId="9" pageNumber="520">
|
||
<collectionCode id="ED01AE4CF5338E6DFF0FFD794C0E2380" box="[188,279,724,741]" pageId="9" pageNumber="520">LOCALITY</collectionCode>
|
||
</smallCapsWord>
|
||
. — Kuala Nerus,
|
||
<collectingRegion id="49D4F86BF5338E6DFE7BFD624F242382" box="[456,573,719,743]" country="Malaysia" name="Terengganu" pageId="9" pageNumber="520">Terengganu</collectingRegion>
|
||
,
|
||
<collectingCountry id="F3077619F5338E6DFDF4FD634FB92383" box="[583,672,718,742]" name="Malaysia" pageId="9" pageNumber="520">Malaysia</collectingCountry>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A6502F5338E6DFF37FD534F8C2273" box="[132,661,766,790]" pageId="9" pageNumber="520" type="distribution">
|
||
<paragraph id="8BAF3689F5338E6DFF37FD534F8C2273" blockId="9.[132,661,766,790]" box="[132,661,766,790]" pageId="9" pageNumber="520">
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||
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|
||
. — Known only from the
|
||
<typeStatus id="54AB882BF5338E6DFDAAFD534F5A2273" box="[537,579,766,790]" pageId="9" pageNumber="520">type</typeStatus>
|
||
locality.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A6502F5338E6DFF37FC834E1122AF" pageId="9" pageNumber="520" type="etymology">
|
||
<paragraph id="8BAF3689F5338E6DFF37FC834E1122AF" blockId="9.[132,776,813,970]" pageId="9" pageNumber="520">
|
||
<smallCapsWord id="8D49A055F5338E6DFF37FC834DE72221" baselines="831,832" box="[132,254,814,837]" lowerCaseFontSize="7" mainFontSize="10" normCase="title" normString="Etymology" pageId="9" pageNumber="520">ETYMOLOGY</smallCapsWord>
|
||
. — The specific epithet is formed by the Latin words
|
||
<emphasis id="B964EA9BF5338E6DFF37FCE44DBD2205" box="[132,164,841,864]" italics="true" pageId="9" pageNumber="520">uni</emphasis>
|
||
-, a prefix meaning single or one, and
|
||
<emphasis id="B964EA9BF5338E6DFDBCFCE44F412205" box="[527,600,841,864]" italics="true" pageId="9" pageNumber="520">pinnata</emphasis>
|
||
(-us, -um), which denotes the presence of branches or tentacles. The name of the species refers to the single and isolated tentacle present basally in the ventral-most area of the tentacular crown. The name is proposed in the feminine, to match the genus gender (ICZN 1999, Art. 31.2).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A6502F5338E6DFF37FC58497427E9" pageId="9" pageNumber="520" type="description">
|
||
<paragraph id="8BAF3689F5338E6DFF37FC584F17256A" blockId="9.[130,778,1013,2027]" box="[132,526,1013,1039]" pageId="9" pageNumber="520">
|
||
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|
||
(
|
||
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|
||
<smallCapsWord id="8D49A055F5338E6DFEDEFC574C972568" baselines="1032" box="[365,398,1018,1037]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="on" pageId="9" pageNumber="520">ON</smallCapsWord>
|
||
<smallCapsWord id="8D49A055F5338E6DFE26FC574F1C2568" baselines="1032" box="[405,517,1018,1037]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="holotype" pageId="9" pageNumber="520">
|
||
<typeStatus id="54AB882BF5338E6DFE26FC574F1C2568" box="[405,517,1018,1037]" pageId="9" pageNumber="520" type="holotype">HOLOTYPE</typeStatus>
|
||
</smallCapsWord>
|
||
)
|
||
</paragraph>
|
||
<paragraph id="8BAF3689F5338E6DFF37FBB94957252B" blockId="9.[130,778,1013,2027]" lastBlockId="9.[811,1457,215,1103]" pageId="9" pageNumber="520">
|
||
Complete specimen, elongated body, cylindrical in cross-section, BL:
|
||
<quantity id="4CE89B6CF5338E6DFEA6FB994C7E252A" box="[277,359,1076,1103]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="9" pageNumber="520" unit="mm" value="10.0">10 mm</quantity>
|
||
long, BW:
|
||
<quantity id="4CE89B6CF5338E6DFE5EFB994F7E252A" box="[493,615,1076,1103]" metricMagnitude="-5" metricUnit="m" metricValue="6.5" pageId="9" pageNumber="520" unit="mm" value="0.065">0.065 mm</quantity>
|
||
, 15 segments. Creamy-white colour in alcohol, with no pigmentation. Body divided into three sections: tentacular crown, thorax and abdomen. Short, anteriorly cylindrical, posteriorly tapering and dorsoventrally flattened with two lobes (
|
||
<figureCitation id="132B2A0CF5338E6DFD36FB194FE325AB" box="[645,762,1204,1230]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3A, D</figureCitation>
|
||
). Fragile mid and posterior body, tightly attached to tube by hooks. Short tentacular crown (C/UL ratio
|
||
<emphasis id="B964EA9BF5338E6DFDD5FB594F692468" box="[614,624,1268,1293]" italics="true" pageId="9" pageNumber="520">c</emphasis>
|
||
. 0.5), narrow (C/UW ratio
|
||
<emphasis id="B964EA9BF5338E6DFEAFFAB94C3F2448" box="[284,294,1300,1325]" italics="true" pageId="9" pageNumber="520">c</emphasis>
|
||
. 0.75), with three pairs of tentacles, slightly longer dorsal-most pair; each tentacle with short, subdistal ramification that slightly lengthens toward dorsal tentacles (
|
||
<figureCitation id="132B2A0CF5338E6DFF3FFADE4C1B24E8" box="[140,258,1395,1421]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3B, C</figureCitation>
|
||
), except mid-ventral paired tentacle proximally with isolated and digitiform ramification (
|
||
<figureCitation id="132B2A0CF5338E6DFDE0FA3E4FBE24C8" box="[595,679,1427,1453]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3B</figureCitation>
|
||
); second dichotomy located very close to distal end, with two or three smooth lobe-like tips, with oral grooves present at the third pair of tentacles (dorsal side). Dorsally and ventrally split tentacular crown. Distinct separation between left and right paired tentacles, marked V-shaped slit at mid-ventral side (
|
||
<figureCitation id="132B2A0CF5338E6DFF72F9FF4C232709" box="[193,314,1618,1644]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3B, C</figureCitation>
|
||
). Two brown long elliptical eyespots present lateroventrally at base of crown (
|
||
<figureCitation id="132B2A0CF5338E6DFDAEF9DF4F8A27E9" box="[541,659,1650,1676]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3B, C</figureCitation>
|
||
). Junction between thorax and tentacle crown marked by short, barely membranous, straight collar, closely aligned with body wall, without covering eyespots. First and third segments half as long as third segment (RLUS): 1-2-1. Uniramous segments with three pairs of poorly developed notopodia with capillary chaetae. First and second segments present in a larger number of chaetae and shorter, at ventrolateral position; third and subsequent segments with fewer and longer chaetae located at dorsolateral side, closer to the first biramous notopodia (tori and capillary chaeta). Notochaetae with shafts composed of densely packed scales (
|
||
<figureCitation id="132B2A0CF5338E6DFDAFF87C4F6A268E" box="[540,627,2001,2027]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3E</figureCitation>
|
||
). Uniramous neuropodia absent. Presence of constriction on 5th segment. Width of biramous segment decreasing posteriorly, posterior segments short, compact, flattened and tapering off. Poorly developed notopodia in biramous parapodia with capillary chaeta similar to uniramous notochaetae, displaced more dorsally. Gold-coloured notochaetae bundle present from 8th segment toward posterior end (
|
||
<figureCitation id="132B2A0CF5338E6DFB37FE3B49C720D4" box="[1156,1246,406,433]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3D</figureCitation>
|
||
). Neuropodial tori from the 4th segment, continue toward posterior end; tori wide, with several rows of neurochaetal hooks. Long, narrow and nearly rectangular tori, almost encircling the body, separated only by the notochaetal bundles on dorsal surface (
|
||
<figureCitation id="132B2A0CF5338E6DFC87FD9B4E962335" box="[820,911,566,592]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3G</figureCitation>
|
||
). First two biramous segments longer than total uniramous segment length. Longest segment 6th. Similar neurochaetal uncini throughout, consisting of hooks with shaft ending in two teeth, with left teeth bending toward the right teeth, concave side of teeth bearing approximately 45° angles with three bends per tip (
|
||
<figureCitation id="132B2A0CF5338E6DFB36FD7849CF2395" box="[1157,1238,725,752]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3F</figureCitation>
|
||
). Longitudinal lines present at mid ventral (two lines) position, from uniramous region to posterior part. Pygidium flattened with two lobes. Methylene blue stain concentrated at lateral side of collar and less concentrated at lateral side of uniramous region and longitudinal line (
|
||
<figureCitation id="132B2A0CF5338E6DFC5BFCD8492222EA" box="[1000,1083,885,911]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3C</figureCitation>
|
||
). Absence of staining at mid-dorsal and ventral collar and thorax (
|
||
<figureCitation id="132B2A0CF5338E6DFBC0FC3849D022CA" box="[1139,1225,917,943]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3C</figureCitation>
|
||
). Tube short, and tapered posteriorly; made of overlapping exogenous materials of quartz grains and shell fragments (outer layer), cemented together and arranged like roof tiles (
|
||
<figureCitation id="132B2A0CF5338E6DFB08FC59480D256A" box="[1211,1300,1012,1039]" captionStart="FIG" captionStartId="10.[132,143,1894,1912]" captionTargetBox="[135,1455,216,1847]" captionTargetId="figure-27@10.[700,1268,759,1304]" captionTargetPageId="10" captionText="FIG. 3. — Owenia unipinnata n. sp. holotype, UMTAnn 2186: A, complete full body of individual, with posterior part slightly bend towards the body; B, anterior end, ventral view, stained using rose bengal (microscopic image) with schematic diagram (completed with numbered arrows) of tentacular crown showing simple solitary ramification; C, anterior end, ventral (left) and dorsal (right) views, stained using methylene blue; D, flattened posterior end with broken lobes and gold coloured notochaeta; E, capillary chaeta with densely packed scales; F, hooked uncini with left teeth bend towards the right teeth; G, tori almost encircles the body; H, overlapping quartz grains and shell fragments of tube. Number 1, 2, 3, indicate the number of ramifications. Scale bars: A, 1 mm; B, C, D, G, H, 100 µm; E, F, 5 µm." figureDoi="http://doi.org/10.5281/zenodo.13712336" httpUri="https://zenodo.org/record/13712336/files/figure.png" pageId="9" pageNumber="520">Fig. 3H</figureCitation>
|
||
). Inner sheath consisting of a translucent successive layers, attached tightly to the neurochaetal hooks.
|
||
</paragraph>
|
||
<paragraph id="8BAF3689F5338E6DFC9EFBD84EBC25E8" blockId="9.[811,1457,1141,1676]" box="[813,933,1141,1167]" pageId="9" pageNumber="520">
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</paragraph>
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||
<paragraph id="8BAF3689F5338E6DFC9EFB39497427E9" blockId="9.[811,1457,1141,1676]" pageId="9" pageNumber="520">
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||
Number of total segments: 5-13.Total body length:
|
||
<quantity id="4CE89B6CF5338E6DFAF5FB3948B525CB" box="[1350,1452,1172,1198]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" metricValueMax="10.0" metricValueMin="3.0" pageId="9" pageNumber="520" unit="mm" value="6.5" valueMax="10.0" valueMin="3.0">3-10 mm</quantity>
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||
. Maximum body width:
|
||
<quantity id="4CE89B6CF5338E6DFB88FB1949E825AB" box="[1083,1265,1204,1231]" metricMagnitude="-5" metricUnit="m" metricValue="4.75" metricValueMax="6.5" metricValueMin="3.0" pageId="9" pageNumber="520" unit="mm" value="0.0475" valueMax="0.065" valueMin="0.03">0.03-0.065 mm</quantity>
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||
. Some
|
||
<typeStatus id="54AB882BF5338E6DFAF6FB1948B425AB" box="[1349,1453,1204,1230]" pageId="9" pageNumber="520" type="paratype">paratypes</typeStatus>
|
||
without simple solitary ramification at mid-ventral paired tentacles.Tips of tentacles completed with two to three small, smooth lobes. Some
|
||
<typeStatus id="54AB882BF5338E6DFBB1FAB9497F244B" box="[1026,1126,1300,1326]" pageId="9" pageNumber="520" type="paratype">paratypes</typeStatus>
|
||
with three simple ramifications at the most dorsal paired tentacles. Crown length to thorax ratio either 0.3 or 0.5. Most
|
||
<typeStatus id="54AB882BF5338E6DFBC7FAF949C2240B" box="[1140,1243,1364,1390]" pageId="9" pageNumber="520" type="paratype">paratypes</typeStatus>
|
||
without pigments. One of them with less concentrated brown pigmentation at tentacles (with the exception of the base and tip of the crown) and collar (just a band around the dorsal collar).
|
||
<specimenCount id="9D16FD00F5338E6DFAACFA1E48B724A8" box="[1311,1454,1459,1485]" count="1" pageId="9" pageNumber="520" type="generic" typeStatus="paratype">One paratype</specimenCount>
|
||
heavily pigmented at the base of tentacles (with the exception of the tips of the crown), less concentrated at the collar and half-uniramous region. Varying relative length of uniramous segment (RLUS), mostly 1-2-1. Longest segment either 5th or 6th. Posterior segments of a few complete
|
||
<typeStatus id="54AB882BF5338E6DFB4CF9FE487A2708" box="[1279,1379,1619,1645]" pageId="9" pageNumber="520" type="paratype">paratypes</typeStatus>
|
||
simply rounded and slightly pointed.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30A6502F5338E6DFC9EF91E480D2689" pageId="9" pageNumber="520" type="biology_ecology">
|
||
<paragraph id="8BAF3689F5338E6DFC9EF91E491D27AE" blockId="9.[813,1457,1715,1868]" box="[813,1028,1715,1741]" pageId="9" pageNumber="520">
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||
<smallCapsWord id="8D49A055F5338E6DFC0DF915491D27AE" baselines="1734" box="[958,1028,1720,1739]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="notes" pageId="9" pageNumber="520">NOTES</smallCapsWord>
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</paragraph>
|
||
<paragraph id="8BAF3689F5338E6DFC9EF97F4820262E" blockId="9.[813,1457,1715,1868]" pageId="9" pageNumber="520">
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||
<taxonomicName id="4C104D0AF5338E6DFC9EF97F491B2789" authorityName="Ibrahim & Villalobos-Guerrero & Idris" authorityYear="2024" box="[813,1026,1746,1772]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" pageId="9" pageNumber="520" phylum="Annelida" rank="species" species="unipinnata" status="sp. nov.">
|
||
<emphasis id="B964EA9BF5338E6DFC9EF97F491B2789" box="[813,1026,1746,1772]" italics="true" pageId="9" pageNumber="520">Owenia unipinnata</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25757E0F5338E6DFBBFF97F49532789" box="[1036,1098,1746,1772]" pageId="9" pageNumber="520" rank="species">n. sp.</taxonomicNameLabel>
|
||
lives in shallow coastal areas of
|
||
<quantity id="4CE89B6CF5338E6DFC9CF95F4E6A2669" box="[815,883,1778,1804]" metricMagnitude="0" metricUnit="m" metricValue="5.0" metricValueMax="8.0" metricValueMin="2.0" pageId="9" pageNumber="520" unit="m" value="5.0" valueMax="8.0" valueMin="2.0">2-8 m</quantity>
|
||
in depth, inhabiting moderately (up to 60.47%) to very fine sandy (up to 86.70%) bottoms with a percentage of total organic matter in the range of 1.6-6.3%.
|
||
</paragraph>
|
||
<paragraph id="8BAF3689F5338E6DFC9EF8DF4EE426EF" blockId="9.[811,1455,1906,2028]" box="[813,1021,1906,1932]" pageId="9" pageNumber="520">
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<smallCapsWord id="8D49A055F5338E6DFC9EF8DF4EA926EF" baselines="1925,1925" box="[813,944,1906,1932]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Biological" pageId="9" pageNumber="520">BIOLOGICAL</smallCapsWord>
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<smallCapsWord id="8D49A055F5338E6DFC04F8DA4EE426EF" baselines="1925" box="[951,1021,1911,1930]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="notes" pageId="9" pageNumber="520">NOTES</smallCapsWord>
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</paragraph>
|
||
<paragraph id="8BAF3689F5338E6DFC9EF83C480D2689" blockId="9.[811,1455,1906,2028]" pageId="9" pageNumber="520">
|
||
Ovigerous females of
|
||
<taxonomicName id="4C104D0AF5338E6DFBAAF83F49F026CE" authorityName="Ibrahim & Villalobos-Guerrero & Idris" authorityYear="2024" box="[1049,1257,1938,1964]" class="Polychaeta" family="Oweniidae" genus="Owenia" kingdom="Animalia" pageId="9" pageNumber="520" phylum="Annelida" rank="species" species="unipinnata" status="sp. nov.">
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||
<emphasis id="B964EA9BF5338E6DFBAAF83F49F026CE" box="[1049,1257,1938,1964]" italics="true" pageId="9" pageNumber="520">Owenia unipinnata</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25757E0F5338E6DFB42F83F483526C9" box="[1265,1324,1938,1964]" pageId="9" pageNumber="520" rank="species">n. sp.</taxonomicNameLabel>
|
||
(BW:
|
||
<quantity id="4CE89B6CF5338E6DFAC6F83C4E8726A9" metricMagnitude="-5" metricUnit="m" metricValue="5.75" metricValueMax="6.5" metricValueMin="5.0" pageId="9" pageNumber="520" unit="mm" value="0.0575" valueMax="0.065" valueMin="0.05">0.05- 0.065 mm</quantity>
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||
; oocyte diameter: 100-120 µm) were found in
|
||
<date id="FFAE1049F5338E6DFA36F81C4E7F268E" pageId="9" pageNumber="520" value="2021-07">July 2021</date>
|
||
, during the southwest monsoon season.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |