165 lines
17 KiB
XML
165 lines
17 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.87.817" ID-GBIF-Dataset="568684d0-245b-48ed-973e-d149f422d5d1" ID-PMC="PMC3082998" ID-Pensoft-Pub="1313-2970-87-43" ID-PubMed="21594101" ModsDocAuthor="" ModsDocDate="2011" ModsDocID="1313-2970-87-43" ModsDocOrigin="ZooKeys 87" ModsDocTitle="Two new species of Urothoe (Crustacea, Amphipoda, Gammaridea) from the East Johor Islands Archipelago, Malaysia" checkinTime="1451250743124" checkinUser="pensoft" docAuthor="Azman, B. A. R. & Melvin, C. W. H." docDate="2011" docId="42072D8A49EC12B0E0D51ABA7EF97165" docLanguage="en" docName="ZooKeys 87: 43-62" docOrigin="ZooKeys 87" docSource="http://dx.doi.org/10.3897/zookeys.87.817" docTitle="Urothoe tinggiensis Azman & Melvin, 2011, sp. n." docType="treatment" docVersion="5" lastPageNumber="50" masterDocId="C86FFFF6FFCFFFECFFBAFFFFA010B860" masterDocTitle="Two new species of Urothoe (Crustacea, Amphipoda, Gammaridea) from the East Johor Islands Archipelago, Malaysia" masterLastPageNumber="62" masterPageNumber="43" pageNumber="48" updateTime="1668167786821" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Two new species of Urothoe (Crustacea, Amphipoda, Gammaridea) from the East Johor Islands Archipelago, Malaysia</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Azman, B. A. R.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Melvin, C. W. H.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2011</mods:date>
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<mods:detail type="volume">
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<mods:number>87</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>43</mods:start>
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<mods:end>62</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.87.817</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.87.817</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-87-43</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159361574" LSID="urn:lsid:zoobank.org:act:806054F6-4A04-4F49-B13C-1A80B65A11C7" httpUri="http://treatment.plazi.org/id/42072D8A49EC12B0E0D51ABA7EF97165" lastPageId="7" lastPageNumber="50" pageId="5" pageNumber="48">
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<subSubSection pageId="5" pageNumber="48" type="nomenclature">
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<paragraph pageId="5" pageNumber="48">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:806054F6-4A04-4F49-B13C-1A80B65A11C7" class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="5" pageNumber="48" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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<taxonomicNameLabel pageId="5" pageNumber="48">sp. n.</taxonomicNameLabel>
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Figs 3A3E
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="48" type="type material">
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<paragraph pageId="5" pageNumber="48">Type material.</paragraph>
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<paragraph pageId="5" pageNumber="48">Holotype, female, 2.0 mm, UKMMZ-1399, muddy-sand substrate of Pulau Tinggi, 2°16'51.70"N, 104°7'15.96"E, airlift suction sampler, 9 m, B.A.R. Azman, C.W.H. Melvin, J.H.C. Lim, 19 July 2007, UKM I.D. 8632. Paratype: 4 females UKMMZ-1401, same station data.</paragraph>
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<caption pageId="5" pageNumber="48">
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<paragraph pageId="5" pageNumber="48">
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Figure 3a.
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="5" pageNumber="48" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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sp. n., holotype, female, (UKMMZ-1399), 2.0 mm. Pulau Tinggi, Johor, South China Sea.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="48" type="type locality">
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<paragraph pageId="5" pageNumber="48">Type locality.</paragraph>
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<paragraph pageId="5" pageNumber="48">Pulau Tinggi, Johor, Malaysia, South China Sea</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="48" type="etymology">
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<paragraph pageId="5" pageNumber="48">Etymology.</paragraph>
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<paragraph pageId="5" pageNumber="48">Named after the type locality, Pulau Tinggi in East Johor, Malaysia.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="49" pageId="5" pageNumber="48" type="description">
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<paragraph pageId="5" pageNumber="48">Description:</paragraph>
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<paragraph pageId="5" pageNumber="48">Based on holotype female, 2.0 mm, UKMMZ-1399.</paragraph>
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<subSection lastPageId="6" lastPageNumber="49" pageId="5" pageNumber="48" type="head">
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<paragraph pageId="5" pageNumber="48">Head</paragraph>
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<paragraph lastPageId="6" lastPageNumber="49" pageId="5" pageNumber="48">
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lateroventral cephalic lobes rounded and very pronounced, rostrum absent. Eyes minute, circular. Antenna 1 peduncular articles 1 - 2 provided with setae along the ventral margin; accessory flagellum triarticulate; main flagellum distinctly shorter than peduncle, about as long as peduncle article 3, 5 articulate. Antenna 2 subequal to antenna 1; flagellum biarticulae; first article with several robust setae and long setae all over; second article with several robust setae and long setae. Upper lip semicircular. Lower lip inner plate large, shoulders broad, mandibular process prominently winged
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<pageBreakToken pageId="6" pageNumber="49" start="start">outward</pageBreakToken>
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. Maxilla 1 inner plate with pinnate seta apically; outer plate with two setae, one pinnate and a seta; palp densely filled with robust setae apically. Maxilla 2 inner and outer plates furnished with pinnate and simple setae. Mandible molar rounded and well-developed; incisor smooth; palp strong; first article shorter than second article; second and third article subequal in length; third article with several robust setae distally. Maxilliped inner plate elongate with about 2 blunt robust setae; outer plate suboval with several spines and setae; palp 4-articulate, second article wide and densely setose on inner margin, third article subtrianglular with several long setae, fourth article subtriangular and small.
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</paragraph>
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</subSection>
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<subSection pageId="6" pageNumber="49" type="pereon">
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<paragraph pageId="6" pageNumber="49">Pereon</paragraph>
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<paragraph pageId="6" pageNumber="49">Gnathopod 1 coxa narrow, subrectangular; basis elongate with several long setae along the posterior margin; carpus broad furnished with several setae at posterior margin, about as broad as long; propodus wide with several long setae situated anterodistally; dactylus normal. Gnathopod 2 coxa narrow, subrectangular; basis elongate with several long setae along the posterior margin; carpus suboval in shape; propodus wide provided with several long setae at anterodistal angle; dactylus falcate, slightly extending palm when closed.</paragraph>
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</subSection>
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<subSection pageId="6" pageNumber="49" type="pereopod 3 – 4">
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<paragraph pageId="6" pageNumber="49">Pereopod 3 - 4</paragraph>
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<paragraph pageId="6" pageNumber="49">homopodous, coxa subquadrate; basis elongate provided with few long setae; carpus twice as long as merus; propodus narrow; dactylus nodulate. Pereopod 5 coxa small, bilobate; basis semicircular, few plumose setae along posterior margin; ischium wider than long; merus wider than long, provided with two transverse rows of robust setae and a row of plumose setae; carpus twice as long as wide, 4 transverse rows of robust setae, one traverse row of plumose setae; propodus longer than wide, provided with 3 traverse rows of robust setae; dactylus large, with 3-4 robust setae along anterior margin. Pereopod 6 coxa subquadrate; basis wide, oval shape, several plumose setae along posterior margin; merus longer than wide; carpus longer than wide, robust setae along anterior margin; propodus shorter than merus, robust setae along anterior margin; dactylus nodulate. Pereopod 7 coxa subtriangular; basis oval shape; merus longer than wide, few robust setae; carpus longer than wide, robust setae along anterior margin and posterior margin; propodus longer than wide provided with several robust setae; dactylus nodulate.</paragraph>
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</subSection>
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<subSection pageId="6" pageNumber="49" type="pleon">
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<paragraph pageId="6" pageNumber="49">Pleon</paragraph>
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<paragraph pageId="6" pageNumber="49">Pleopods 1-3 peduncle shortened and slightly expanded distally; outer ramus longer than inner ramus; rami multiarticulate. Uropod 1 peduncle with several robust setae lining at the medial margin and distally; rami subequal in length. Uropod 2 peduncle provided with 2 robust setae and a robust seta distally; rami subequal in length. Uropod 3 well developed; both rami with long plumose setae; outer ramus 2 biarticulate; inner ramus shorter than outer ramus. Telson about 5/6 cleft; both lobes with 2 setae apically and a seta medially.</paragraph>
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<caption pageId="6" pageNumber="49">
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<paragraph pageId="6" pageNumber="49">
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Figure 3b.
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="6" pageNumber="49" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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sp. n., holotype, female, (UKMMZ-1399), 2.0 mm. Pulau Tinggi, Johor, South China Sea. All scales represent 0.1 mm.
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</paragraph>
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</caption>
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<caption pageId="6" pageNumber="49">
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<paragraph pageId="6" pageNumber="49">
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Figure 3c.
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="6" pageNumber="49" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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sp. n., holotype, female, (UKMMZ-1399), 2.0 mm. Pulau Tinggi, Johor, South China Sea. All scales represent 0.05 mm.
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</paragraph>
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</caption>
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<caption pageId="6" pageNumber="49">
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<paragraph pageId="6" pageNumber="49">
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Figure 3d.
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="6" pageNumber="49" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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sp. n., holotype, female, (UKMMZ-1399), 2.0 mm. Pulau Tinggi, Johor, South China Sea. All scales represent 0.1 mm.
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</paragraph>
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</caption>
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<caption pageId="6" pageNumber="49">
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<paragraph pageId="6" pageNumber="49">
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Figure 3e.
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="6" pageNumber="49" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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sp. n., holotype, female, (UKMMZ-1399), 2.0 mm. Pulau Tinggi, Johor, South China Sea. All scales represent 0.05 mm.
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</paragraph>
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</caption>
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</subSection>
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</subSubSection>
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<subSubSection lastPageId="7" lastPageNumber="50" pageId="6" pageNumber="49" type="remarks">
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<paragraph pageId="6" pageNumber="49">Remarks.</paragraph>
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<paragraph lastPageId="7" lastPageNumber="50" pageId="6" pageNumber="49">
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According to the proposed classification of the
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<normalizedToken originalValue="‘falcata’">'falcata'</normalizedToken>
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group by
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<bibRefCitation author="Barnard, JL" journalOrPublisher="Verna Research Series" pageId="7" pageNumber="50" pagination="1 - 78" title="South Atlantic abyssal amphipods collected by R. V. Verna. Abyssal crustacean." volume="1" year="1962">Barnard (1962)</bibRefCitation>
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, members of this group possess dissimilar gnathopods; gnathopod 1 simple, elongated and slender propodus, bearing no palm; gnathopod 2 has a suboval or slightly expanding propodus with a distinct, rounded palm. With these characters our species is clearly attributed to the
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<normalizedToken originalValue="‘falcata’">'falcata'</normalizedToken>
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group. However, there are perceivable d
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<pageBreakToken pageId="7" pageNumber="50" start="start">ifferences</pageBreakToken>
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that can be ruled out between the new species and all the members of the group. As such, the setose dactylus of pereopod 5 in
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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is readily distinguished from the non-spinose dactylus of pereopod 5 in
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe pinnata" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="pinnata">Urothoe pinnata</taxonomicName>
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and
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tumorosa" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="tumorosa">Urothoe tumorosa</taxonomicName>
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. Differing from
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe platydactyla" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="platydactyla">Urothoe platydactyla</taxonomicName>
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in the expanding and elliptical shape of the pereopod 5 dactylus. Both the pereopod 6 and 7 are somewhat different from
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe platypoda" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="platypoda">Urothoe platypoda</taxonomicName>
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; the merus and carpus in
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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is considerably linear and elongated while the merus and carpus of both pereopod 6 and 7 in
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe platypoda" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="platypoda">Urothoe platypoda</taxonomicName>
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are lobed posteriorly. The enormously produced coxa 4 in
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe coxalis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="coxalis">Urothoe coxalis</taxonomicName>
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is contrastingly distinctive from the normal subquadrate coxa 4 of
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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. The new species appears to have close affinities to
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe orientalis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="orientalis">Urothoe orientalis</taxonomicName>
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due to the wide carpus of pereopod 5 but clearly distinguished from the latter in the shape of propodus of gnathopod 1 and the absence of robust setae on the outer ramus of uropods 1 and 2.
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe tinggiensis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="tinggiensis">Urothoe tinggiensis</taxonomicName>
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is also distinguished from
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe oniscoides" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="oniscoides">Urothoe oniscoides</taxonomicName>
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by the presence of eyes. The new species has some remarkable similarities with
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<taxonomicName class="Malacostraca" family="Urothoidae" genus="Urothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Urothoe cuspis" order="Amphipoda" pageId="7" pageNumber="50" phylum="Arthropoda" rank="species" species="cuspis">Urothoe cuspis</taxonomicName>
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Imbach, 1969 from Bay of Nhatrang, Vietnam, but seem to be different from the latter in the acuminate cuspidate coxa 2.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="50" type="distribution">
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<paragraph pageId="7" pageNumber="50">Distribution.</paragraph>
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<paragraph pageId="7" pageNumber="50">Malaysia. Johor: Pulau Tinggi.</paragraph>
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</subSubSection>
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</treatment>
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</document> |