348 lines
31 KiB
XML
348 lines
31 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.662.11908" ID-GBIF-Dataset="e342b1e5-ece1-4d24-b0fd-fab34f7b3c76" ID-PMC="PMC5539359" ID-Pensoft-Pub="1313-2970-662-67" ID-PubMed="28769609" ID-ZBK="1DA6981A04754D14B5350D61FF0A2AE2" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1313-2970-662-67" ModsDocOrigin="ZooKeys 662" ModsDocTitle="A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong" checkinTime="1490166139829" checkinUser="pensoft" docAuthor="Cannicci, Stefano & Ng, Peter L. K." docDate="2017" docId="E3F4F6197879D6627A2DBF6D15C8967F" docLanguage="en" docName="ZooKeys 662: 67-78" docOrigin="ZooKeys 662" docSource="http://dx.doi.org/10.3897/zookeys.662.11908" docTitle="Haberma tingkok Cannicci & Ng, 2017, sp. n." docType="treatment" docUuid="680B85B7-8764-4332-9882-EB1CA05635AF" docUuidSource="ZooBank" docVersion="5" lastPageNumber="74" masterDocId="DA16FFFCFF8EFF98FFB0FFADEA62FFA6" masterDocTitle="A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong" masterLastPageNumber="78" masterPageNumber="67" pageNumber="68" updateTime="1668164313207" 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>A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong</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>Cannicci, Stefano</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>Ng, Peter L. K.</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>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>662</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>67</mods:start>
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<mods:end>78</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.662.11908</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.662.11908</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-662-67</mods:identifier>
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<mods:identifier type="ZBK">1DA6981A04754D14B5350D61FF0A2AE2</mods:identifier>
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<mods:identifier type="ZooBank">1DA6981A04754D14B5350D61FF0A2AE2</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="127876841" LSID="urn:lsid:zoobank.org:act:680B85B7-8764-4332-9882-EB1CA05635AF" httpUri="http://treatment.plazi.org/id/E3F4F6197879D6627A2DBF6D15C8967F" lastPageId="7" lastPageNumber="74" pageId="1" pageNumber="68">
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<subSubSection pageId="1" pageNumber="68" type="nomenclature">
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<paragraph pageId="1" pageNumber="68">
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<taxonomicName LSID="http://zoobank.org/680B85B7-8764-4332-9882-EB1CA05635AF" class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="1" pageNumber="68" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="68">sp. n.</taxonomicNameLabel>
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Figs 1, 2, 3, 4, 5
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="68" type="materials_examined">
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<paragraph pageId="1" pageNumber="68">Material examined.</paragraph>
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<paragraph pageId="1" pageNumber="68">
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Holotype: ♂ (8.5
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<normalizedToken originalValue="×">x</normalizedToken>
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8.2 mm) (ZRC 2016.620), Ting Kok Mangroves, Tai Po District, northeastern Hong Kong, ca.
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<geoCoordinate direction="north" orientation="latitude" precision="555" value="22.28">22.28°N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="555" value="114.12">114.12°E</geoCoordinate>
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, coll. Cannicci S, Cheung C, 4 July 2016. Paratypes: 2 ovigerous ♀♀ (8.6
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<normalizedToken originalValue="×">x</normalizedToken>
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8.3 mm, 9.2
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<normalizedToken originalValue="×">x</normalizedToken>
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9.0 mm) (ZRC 2016.621), 1 ovigerous ♀ (8.4
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<normalizedToken originalValue="×">x</normalizedToken>
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8.1 mm) (SWIMS), 1 ovigerous ♀(7.9
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<normalizedToken originalValue="×">x</normalizedToken>
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7.5 mm) (MZUF 4853), same location and date as holotype, coll. Cannicci S, Wong S; 1 ♂ (8.1
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<normalizedToken originalValue="×">x</normalizedToken>
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8.0 mm) (SWIMS), 1 young ♂ (4.6
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<normalizedToken originalValue="×">x</normalizedToken>
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4.5 mm) (ZRC 2016.622), same location as holotype, coll. Huang C, Hayhoe L, 10 August 2016.
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</paragraph>
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<caption pageId="1" pageNumber="68">
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<paragraph pageId="1" pageNumber="68">
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Figure 1.
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="1" pageNumber="68" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
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sp. n., colour in life, holotype ♂ (8.5
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<normalizedToken originalValue="×">x</normalizedToken>
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8.2 mm) (ZRC 2016.620). A dorsal view B ventral view.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="69" pageId="1" pageNumber="68" type="materials_examined">
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<paragraph pageId="1" pageNumber="68">Comparative material.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="69" pageId="1" pageNumber="68">
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma nanum" order="Decapoda" pageId="1" pageNumber="68" phylum="Arthropoda" rank="species" species="nanum">Haberma nanum</taxonomicName>
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Ng & Schubart, 2002: Holotype ♂ (7.1
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<normalizedToken originalValue="×">x</normalizedToken>
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6.6 mm) (ZRC 2002.217), Mandai mangroves, Singapore, coll. Schubart CD, 29 December 1999; paratypes: 1 ovigerous ♀ (8.1
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<normalizedToken originalValue="×">x</normalizedToken>
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7.5 mm) (ZRC 2002.218), Mandai mangroves, Singapore, coll. Schubart CD, 29 December 1999; 2 ♂♂ (7.0
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<normalizedToken originalValue="×">x</normalizedToken>
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6.9 mm, 6.0
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<normalizedToken originalValue="×">x</normalizedToken>
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5.5 mm) (ZRC 2002.219), Mandai mangroves, Singapore, coll. Yeo DCJ, 16 January 2002; 4 ♂♂ (largest 6.5
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<normalizedToken originalValue="×">x</normalizedToken>
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6.5 mm, smallest 4.5
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<normalizedToken originalValue="×">x</normalizedToken>
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4.5 mm), 2 ♀♀ (5.7
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<normalizedToken originalValue="×">x</normalizedToken>
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5.8 mm, 5.1
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<normalizedToken originalValue="×">x</normalizedToken>
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4.9 mm) (ZRC 2000.1956), Mandai mangroves, Singapore, coll. Schubart CD, 15 October 1999; 1 ♂ (5.0
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<normalizedToken originalValue="×">x</normalizedToken>
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4.9 mm) (ZRC 1971.11.5.6), Johor Strait, Singapore, coll. Soh CL, 9 December 1966; 1 ♂ (6.2
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<normalizedToken originalValue="×">x</normalizedToken>
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5.8 mm) (ZRC 1971.11.5.7), Johor Strait, Singapore, coll. Soh CL, 26 December 1966; 1 dismembered ♂ (7.2
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<normalizedToken originalValue="×">x</normalizedToken>
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7.5 mm) (ZRC 1971.11.5.8), Ama Keng River, Singapore, coll. Soh CL, 28 November 1965; 1 ovigerous ♀ (8.8
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<normalizedToken originalValue="×">x</normalizedToken>
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8.3 mm) (ZRC 1968.4.22.5), Johor Straits, Singapore, coll. Soh CL, 26 December 1966; 2 ♀♀ (5.2
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<normalizedToken originalValue="×">x</normalizedToken>
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5.2 mm, 3.3
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<normalizedToken originalValue="×">x</normalizedToken>
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3.1 mm) (ZRC 1968.4.22.2-3), Sungai Melayu, Singapore, coll. Soh CL, 24 January 1966; 3 ovigerous ♀♀ (4.5
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<normalizedToken originalValue="×">x</normalizedToken>
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4.1 mm, 4.2
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<normalizedToken originalValue="×">x</normalizedToken>
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4.1 mm, 3.7
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<normalizedToken originalValue="×">x</normalizedToken>
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3.7 mm) (ZRC 1968.4.22.6-8), Johor Straits, Singapore, coll. Soh CL, 26 December 1966; 1 ovigerous ♀ (7.2
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<normalizedToken originalValue="×">x</normalizedToken>
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6.9 mm) (ZRC 1968.4.22.9), Mak Wai River, Singapore, coll. Soh CL, 28 December 1966.
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma kamora" order="Decapoda" pageId="1" pageNumber="68" phylum="Arthropoda" rank="species" species="kamora">Haberma kamora</taxonomicName>
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Ra
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<pageBreakToken pageId="2" pageNumber="69" start="start">hayu</pageBreakToken>
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& Ng, 2005: Paratypes: 1 ♂ (ZRC 2000.1884), Kamora, coll. Volosin J, 4 April 2000; 4 ♂♂ (8.4
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<normalizedToken originalValue="×">x</normalizedToken>
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7.4 mm, 7.5
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<normalizedToken originalValue="×">x</normalizedToken>
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6.8 mm, 7.2
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<normalizedToken originalValue="×">x</normalizedToken>
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6.7 mm, 6.8
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<normalizedToken originalValue="×">x</normalizedToken>
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5.8 mm), 3 ♀♀ (6.4
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<normalizedToken originalValue="×">x</normalizedToken>
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5.8 mm, 6.1
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<normalizedToken originalValue="×">x</normalizedToken>
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5.6 mm, 7.9
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<normalizedToken originalValue="×">x</normalizedToken>
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7.1 mm) (ZRC 2002.0591), Kamora, near river bank, coll. Ermayanti I, 9 October 2001.
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</paragraph>
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<caption pageId="2" pageNumber="69">
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<paragraph pageId="2" pageNumber="69">
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Figure 2.
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="2" pageNumber="69" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
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sp. n., overall dorsal view. A holotype ♂ (8.5
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<normalizedToken originalValue="×">x</normalizedToken>
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8.2 mm) (ZRC 2016.620) B paratype ♀ (8.6
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<normalizedToken originalValue="×">x</normalizedToken>
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8.3 mm) (ZRC 2016.621).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="69" type="diagnosis">
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<paragraph pageId="2" pageNumber="69">Diagnosis.</paragraph>
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<paragraph pageId="2" pageNumber="69">
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Carapace almost quadrate, width ca. 1.03-1.04 times length (Figs 1A, 2, 3A); margin of each frontal lobe with broadly convex margin (Figs 2, 3A); supraorbital margin relatively long, gradually sloping laterally (Fig. 3A); external orbital tooth directed anteriorly, lateral carapace margin gently sinuous, subparallel (Fig. 3A); tip of cornea reaching tip of external orbital tooth (Fig. 3A, C); dorsal surface of dactylus of chela with several small, low, irregularly arranged subtransverse striae (Fig. 3D); ambulatory legs (P2-P5) very long, slender, propodi of P2 and P3 elongate (Figs 4D, E); male pleon triangular, telson semicircular (Figs 3B, 4F); G1 relatively slender, gently curving outwards; apical process bent, with truncate tip (Fig. 4
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<normalizedToken originalValue="H–L">H-L</normalizedToken>
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).
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</paragraph>
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<caption pageId="2" pageNumber="69">
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<paragraph pageId="2" pageNumber="69">
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Figure 3.
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="2" pageNumber="69" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
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sp. n.
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<normalizedToken originalValue="A–D">A-D</normalizedToken>
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holotype ♂ (8.5
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<normalizedToken originalValue="×">x</normalizedToken>
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8.2 mm) (ZRC 2016.620) E, F paratype ♀ (8.6
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<normalizedToken originalValue="×">x</normalizedToken>
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8.3 mm) (ZRC 2016.621). A dorsal view of carapace B male anterior thoracic sternum and pleon C frontal view of cephalothorax and chelipeds D outer view of left chela E female pleon F female sternopleonal cavity showing vulvae.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="72" pageId="2" pageNumber="69" type="description">
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<paragraph pageId="2" pageNumber="69">Description.</paragraph>
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<paragraph pageId="2" pageNumber="69">Carapace almost quadrate, ca. 1.03-1.04 times broader than long; regions prominently defined, grooves separating them distinct; lateral part of branchial surface with distinct oblique striae, lined with short stiff setae; dorsal surface with scattered tufts of short setae, notably on anterior regions, lateral margins with dense short setae (Figs 1A, 2, 3A). Postfrontal regions distinct, distinctly separated into 4 lobes by deep grooves, median lobes larger than lateral ones (Fig. 3A). Front ca. 0.5 times maximum carapace width, prominently deflexed, margin distinctly bilobed from dorsal view, each lobe with broadly convex margin, separated by broad median concavity (Figs 2, 3A). Supraorbital margin relatively long, gradually sloping laterally, gently convex, entire (Fig. 3A). External orbital tooth triangular, directed anteriorly, completely fused with lateral carapace margin without trace of tooth or indentation; lateral carapace margin gently sinuous, subparallel; posterior carapace margin almost straight (Fig. 3A). Eyes and orbits large, eye longer than orbit, tip of cornea reaching tip of external orbital tooth (Fig. 3A, C). Basal articles of antenna adjacent to antennule, not separated by septum; basal antennal article large, flagellum short, entering orbit; basal antennular article bulbous, antennule folding obliquely (Fig. 3C). Posterior margin of epistome with prominent median triangular projection, lateral margins conspicuously sinuous (Fig. 3C).</paragraph>
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<caption pageId="2" pageNumber="69">
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<paragraph pageId="2" pageNumber="69">
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Figure 4.
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="2" pageNumber="69" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
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sp. n., holotype ♂ (8.5
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<normalizedToken originalValue="×">x</normalizedToken>
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8.2 mm) (ZRC 2016.620). A left third maxilliped
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<normalizedToken originalValue="B–E">B-E</normalizedToken>
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right P2-P5, respectively F pleon G thoracic sternum showing sternopleonal cavity H left G1 (dorsal view) I distal part of left G1 (dorsal view) J, K mesial view of distal part of left G1L distal part of left G1 (ventral view) M left G2. Setae on third maxilliped, pleon and G1 denuded. Abbreviations: st3-8 = thoracic sternites 3-8, respectively; stpl: sternite 4 pleonal lock. Scale bars: A = 0.5 mm;
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<normalizedToken originalValue="H–M">H-M</normalizedToken>
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= 0.25 mm;
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<normalizedToken originalValue="B–E">B-E</normalizedToken>
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, F, G = 1.0 mm.
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</paragraph>
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</caption>
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<paragraph pageId="2" pageNumber="69">Ischium of third maxilliped with shallow, oblique median sulcus; merus shorter than ischium, with distinct oblique median ridge; exopod slender, tip reaching to more than half length of outer margin of merus, flagellum long (Fig. 4A).</paragraph>
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<paragraph lastPageId="3" lastPageNumber="70" pageId="2" pageNumber="69">
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Chelipeds subequal; male chelipeds relatively stout (Figs 2A, 3D); female chelipeds distinctly more slender (Fig. 2B). Basis-ischium fused, suture visible, inner margin gently serrated; posterior border of merus serrated, with low subdistal tooth; outer anterior border gently serrated with distinct proximal spine; inner anterior border gently serrated with prominent subdistal tooth; carpus subovate, longer than broad, margins subcristate, with tuft of setae on inner margin (Figs 2A, 3B). Outer and inner surfaces of palm smooth to rugose, without setae (Fig. 3D). Dorsal surface of palm with several short uneven ridges lined with very small rounded granules, not prominently raised or pectinated (Fig. 3D). Male propodal finger short, dactylus curved, smooth on
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<pageBreakToken pageId="3" pageNumber="70" start="start">outer</pageBreakToken>
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surfaces; dorsal surface of dactylus with several small, low, irregularly arranged subtransverse striae; cutting edge of fingers with small and large teeth, tips chitinous, subspatuliform; fingers forming small gape when closed (Fig. 3D). Female fingers less distinctly curved, without striae on dorsal margin of dactylus (Fig. 3E).
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</paragraph>
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<caption pageId="3" pageNumber="70">
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<paragraph pageId="3" pageNumber="70">
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Figure 5.
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="3" pageNumber="70" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
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sp. n., paratype ♀ (8.6
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<normalizedToken originalValue="×">x</normalizedToken>
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8.3 mm) (ZRC 2016.621). A right P2 propodus and dactylus B right P3 propodus and dactylus C right P4 dactylus and propodus showing dactylo-propodal lock (setae not drawn) D thoracic sternites 5-7, showing vulvae on sternite 6. Abbreviations: st5-7 = thoracic sternites 5-7, respectively; vu: vulva. Scale bars: A, B, D = 1.0 mm; C = 0.5 mm.
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</paragraph>
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</caption>
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<paragraph lastPageId="5" lastPageNumber="72" pageId="3" pageNumber="70">
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Ambulatory legs (P2-P5) very long, slender, third pair longest (Fig. 2). Outer surface of merus, carpus and propodus gently rugose to smooth (Figs 2, 4
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<normalizedToken originalValue="B–E">B-E</normalizedToken>
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). Meri ca. three times as long as wide; dorsal margin gently serrated, with sharp subdistal spine; ventral margin more distinctly serrated; dorsal and ventral margins with regularly arranged long stiff setae; outer surface with short, uneven ridge on subdistal part (Fig. 4
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<normalizedToken originalValue="B–E">B-E</normalizedToken>
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). Carpus with two subparallel ridges on outer surface, one marginal, one submarginal (Fig. 4
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<normalizedToken originalValue="B–E">B-E</normalizedToken>
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). Male propodus of P2, P3 with ventro-distal margin sharply tapering at distal quarter; dorsal and ventral margins with prominent long stiff setae, outer surface with longitudinal median row of short dense setae; disto-ventral margin
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<pageBreakToken pageId="4" pageNumber="71" start="start">with</pageBreakToken>
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dense short brush-like setae, with long, stiff setae bracketing brush; dactylus of P2, P3 styliform, gently curving, proximal half with short brush-like setae along ventral margin; dactylus folding against tapered part of propodus when flexed, brush-like setae of each appendages appressing tightly against each other, forming distinct subchelate structure (Fig. 4B, C). Female propodi and dactyli of P2, P3 not subchelate; brush-like setae on ventral margins absent (Fig. 5A, B). Propodi and dactyli of female P2, P3, and male and female P4, P5 normal, not subchelate, dorsal and ventral margins with prominent long stiff setae; propodus elongate, outer surface with median
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<pageBreakToken pageId="5" pageNumber="72" start="start">longitudinal</pageBreakToken>
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row of setae; dactylus distinctly shorter than propodus, styliform, gently curved (Figs 4D, E, 5A, B). Dactylus of all legs of both sexes with distinct dactylo-propodal locking mechanism (Fig. 5C)
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</paragraph>
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<paragraph pageId="5" pageNumber="72">Surface of male thoracic sternites 1-3 setose, others smooth, glabrous; sternites 1-3 fused; sternites 3 and 4 separated by very low ridge lined with long setae that obscure margins (Figs 3B, 4G). Male sternopleonal cavity reaching low ridge separating sternites 3 and 4 (Figs 3B, 4G). Tufts of long, soft setae between coxae of chelipeds and first to third ambulatory legs, those between ambulatory legs denser. Male pleonal locking mechanism formed by slightly raised edge of ridge on sternite 4, at edge of sternopleonal cavity between sternites 4 and 5; no trace of locking tubercle or granule (Fig. 4G). Vulva on submedian part of sternite 6, with operculum and distinct opercular processes (Figs 3F, 5D).</paragraph>
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<caption pageId="5" pageNumber="72">
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<paragraph pageId="5" pageNumber="72">
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Figure 6. A, C
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<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma nanum" order="Decapoda" pageId="5" pageNumber="72" phylum="Arthropoda" rank="species" species="nanum">Haberma nanum</taxonomicName>
|
||
Ng & Schubart, 2002, holotype ♂ (7.1
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
6.6 mm) (ZRC 2002.217), Singapore B, D
|
||
<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma kamora" order="Decapoda" pageId="5" pageNumber="72" phylum="Arthropoda" rank="species" species="kamora">Haberma kamora</taxonomicName>
|
||
Rahayu & Ng, 2005, paratype ♂ (7.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
6.8 mm) (ZRC 2002.591), Indonesian Papua. A, B overall dorsal view C, D anterior thoracic sternum and pleon.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="5" pageNumber="72">Male pleon triangular, relatively broad (Figs 3B, 4F); telson semicircular, shorter than somite 6, lateral margin convex; somite 6 twice as long as wide, lateral margins distinctly convex; somites 4 and 5 progressively more trapezoidal, lateral margins almost straight; somite 3 broadest, lateral margin convex; somites 1 and 2 longitudinally narrow (Figs 3B, 4F). Female pleon almost round, almost completely covering thoracic sternal surface (Fig. 3E). Male thoracic sternite 8 not visible when pleon closed.</paragraph>
|
||
<paragraph pageId="5" pageNumber="72">
|
||
G1 relatively slender, gently curving outwards; chitinous apical process bent, relatively long, with truncate tip; subdistal setae long, simple, at base of apical process (Fig. 4
|
||
<normalizedToken originalValue="H–L">H-L</normalizedToken>
|
||
). G2 short with spatuliform tip (Fig. 4M).
|
||
</paragraph>
|
||
<paragraph pageId="5" pageNumber="72">Eggs small, subovate (Fig. 3E), ca. 0.25 mm in freshly preserved material.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection lastPageId="7" lastPageNumber="74" pageId="5" pageNumber="72" type="variation">
|
||
<paragraph pageId="5" pageNumber="72">Variation.</paragraph>
|
||
<paragraph lastPageId="7" lastPageNumber="74" pageId="5" pageNumber="72">
|
||
The adults examined do not vary substantially. The smallest specimen, a young male measuring 4.6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
4.5 mm (ZRC 2016.622), differs from the adult males
|
||
<pageBreakToken pageId="6" pageNumber="73" start="start">in</pageBreakToken>
|
||
having the lateral margins of the carapace gently concave, resembling the condition observed in
|
||
<taxonomicName lsidName="H. kamora" pageId="6" pageNumber="73" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
(Fig. 6B) but the carapace still looks relatively quadrate and the supraorbital margin is less sloping. Its subchelate P2 and P3 are less prominent, mainly
|
||
<pageBreakToken pageId="7" pageNumber="74" start="start">because</pageBreakToken>
|
||
the setae on the distal margin of the propodus and that of the dactylus are less developed, being very short. In addition, its pleon is less semicircular in shape, being more triangular and closer to that observed in
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
(Fig. 6D).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="7" pageNumber="74" type="colour">
|
||
<paragraph pageId="7" pageNumber="74">Colour.</paragraph>
|
||
<paragraph pageId="7" pageNumber="74">In life, carapace dark brown with light brown mottling; ambulatory legs mottled brown with darker bands on carpi and propodi; chelae light-orange to orange, with fingers darker coloured (Fig. 1A, B). Ventral surfaces of cephalothorax and ambulatory legs light yellow with numerous fine brown spots (Fig. 1B).</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="7" pageNumber="74" type="etymology">
|
||
<paragraph pageId="7" pageNumber="74">Etymology.</paragraph>
|
||
<paragraph pageId="7" pageNumber="74">The species is named after the Ting Kok mangrove area, which has been designated a "Site of Special Scientific Interest" in Hong Kong. The name is used as a noun in apposition.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="7" pageNumber="74" type="remarks">
|
||
<paragraph pageId="7" pageNumber="74">Remarks.</paragraph>
|
||
<paragraph pageId="7" pageNumber="74">
|
||
<taxonomicName class="Malacostraca" family="Sesarmidae" genus="Haberma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Haberma tingkok" order="Decapoda" pageId="7" pageNumber="74" phylum="Arthropoda" rank="species" species="tingkok">Haberma tingkok</taxonomicName>
|
||
sp. n. can easily be separated from
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
Ng & Schubart, 2002, and
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
Rahayu & Ng, 2005, by the carapace appearing proportionately broader (Fig. 3A) rather than more distinctly quadrate (Fig. 6A, B). While their carapace width to length proportions do not differ substantially, this difference in carapace shape is due mainly to the lateral margins of
|
||
<taxonomicName lsidName="H. tingkok" pageId="7" pageNumber="74" rank="species" species="tingkok">H. tingkok</taxonomicName>
|
||
being straighter and less sinuous (Fig. 3A); which in
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
, are distinctly more sinuous (Fig. 6A, B). This also affects the shape of the supraorbital margin. In
|
||
<taxonomicName lsidName="H. tingkok" pageId="7" pageNumber="74" rank="species" species="tingkok">H. tingkok</taxonomicName>
|
||
, the margin is relatively longer and gently curves laterally to the external orbital tooth (Fig. 3A). In
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
, the supraorbital margin appears shorter as it curves obliquely to the margin (Fig. 6A, B). This difference in carapace shape applies for both sexes (Fig. 2). In addition, the male P4 and P5 propodi are prominently more elongated (Fig. 2A, 4D, E) than those of
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
(Fig. 6A, B). The margin of the frontal lobe of
|
||
<taxonomicName lsidName="H. tingkok" pageId="7" pageNumber="74" rank="species" species="tingkok">H. tingkok</taxonomicName>
|
||
is the most convex in the genus (Fig. 3A); in
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
, the margin is almost straight (Fig. 6A) whilst in
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
, it is gently convex (Fig. 6B). The male telson of
|
||
<taxonomicName lsidName="H. tingkok" pageId="7" pageNumber="74" rank="species" species="tingkok">H. tingkok</taxonomicName>
|
||
is distinctive as it is semicircular (Figs 3B, 4F); in
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
, the telsons are relatively longer and more triangular (Fig. 6C, D). The distal chitinous part of the G1 of
|
||
<taxonomicName lsidName="H. tingkok" pageId="7" pageNumber="74" rank="species" species="tingkok">H. tingkok</taxonomicName>
|
||
(Fig. 4
|
||
<normalizedToken originalValue="H–L">H-L</normalizedToken>
|
||
) is more curved than that of
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
(cf.
|
||
<bibRefCitation author="Ng, PKL" journalOrPublisher="Raffles Bulletin of Zoology" pageId="8" pageNumber="75" pagination="437 - 442" title="Habermananum, a new genus and new species of mangrove crab (Crustacea: Decapoda: Brachyura: Sesarmidae) from Singapore." volume="50" year="2002">Ng and Schubart 2002</bibRefCitation>
|
||
: fig. 4B, C); and while it is more similar in form to that of
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
, the chitinous distal part of the G1 of this species is relatively longer (cf.
|
||
<bibRefCitation author="Rahayu, DL" journalOrPublisher="Zoologische Mededelingen" pageId="8" pageNumber="75" pagination="167 - 178" title="On two new species of the genera Haberma and Parasesarma (Crustacea: Decapoda: Brachyura: Sesarmidae) from Papua, Indonesia" volume="79 - 2" year="2005">Rahayu and Ng 2005</bibRefCitation>
|
||
: fig. 3H, I).
|
||
</paragraph>
|
||
<paragraph pageId="7" pageNumber="74">
|
||
One character not described in
|
||
<bibRefCitation author="Ng, PKL" journalOrPublisher="Raffles Bulletin of Zoology" pageId="8" pageNumber="75" pagination="437 - 442" title="Habermananum, a new genus and new species of mangrove crab (Crustacea: Decapoda: Brachyura: Sesarmidae) from Singapore." volume="50" year="2002">Ng and Schubart (2002)</bibRefCitation>
|
||
and
|
||
<bibRefCitation author="Rahayu, DL" journalOrPublisher="Zoologische Mededelingen" pageId="8" pageNumber="75" pagination="167 - 178" title="On two new species of the genera Haberma and Parasesarma (Crustacea: Decapoda: Brachyura: Sesarmidae) from Papua, Indonesia" volume="79 - 2" year="2005">Rahayu and Ng (2005)</bibRefCitation>
|
||
is the presence of a short, uneven ridge on the outer surface of the ambulatory merus, at the subdistal part just before the carpus (Fig. 4
|
||
<normalizedToken originalValue="B–E">B-E</normalizedToken>
|
||
). It is present on all the legs, being more prominent in P2 and P3. This ridge is present also in
|
||
<taxonomicName lsidName="H. nanum" pageId="7" pageNumber="74" rank="species" species="nanum">H. nanum</taxonomicName>
|
||
and
|
||
<taxonomicName lsidName="H. kamora" pageId="7" pageNumber="74" rank="species" species="kamora">H. kamora</taxonomicName>
|
||
, but is relatively less well developed compared to
|
||
<taxonomicName lsidName="H. tingkok" pageId="7" pageNumber="74" rank="species" species="tingkok">H. tingkok</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="7" pageNumber="74" type="ecology">
|
||
<paragraph pageId="7" pageNumber="74">Ecology.</paragraph>
|
||
<paragraph pageId="7" pageNumber="74">
|
||
The specimens were found climbing trees of
|
||
<taxonomicName class="Magnoliopsida" family="Rhizophoraceae" genus="Kandelia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Kandelia obovata" order="Malpighiales" pageId="7" pageNumber="74" phylum="Tracheophyta" rank="species" species="obovata">Kandelia obovata</taxonomicName>
|
||
Sheue, Liu & Yong, 2003, and
|
||
<taxonomicName class="Magnoliopsida" family="Primulaceae" genus="Aegiceras" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Aegiceras corniculatus" order="Ericales" pageId="7" pageNumber="74" phylum="Tracheophyta" rank="species" species="corniculatus">Aegiceras corniculatus</taxonomicName>
|
||
(L.) Bianco, 1837, in the mid intertidal area of the Ting Kok mangrove stand, in Tolo Harbour. The area is the largest mangrove stand on the eastern coast of Hong Kong and is largely dominated by
|
||
<taxonomicName lsidName="K. obovata" pageId="7" pageNumber="74" rank="species" species="obovata">K. obovata</taxonomicName>
|
||
trees, up to 3 m tall. All specimens, including the ovigerous females, were collected at a height of approximately 1.5-1.8 m above the substrate, walking on the bark of the branches at ebbing and low tides.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |