406 lines
35 KiB
XML
406 lines
35 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.817.29332" ID-GBIF-Dataset="9d8331fd-5419-4270-a699-b7e07502f599" ID-PMC="PMC6342859" ID-Pensoft-Pub="1313-2970-817-11" ID-PubMed="30686919" ID-ZBK="F43B4D497D7E4DA89D5FA4D0040B1C33" ModsDocAuthor="" ModsDocDate="2019" ModsDocID="1313-2970-817-11" ModsDocOrigin="ZooKeys 817" ModsDocTitle="Neocaridinafonticulata, a new land-locked freshwater shrimp from Hengchun Peninsula, Taiwan (Decapoda, Caridea, Atyidae)" checkinTime="1547560987952" checkinUser="pensoft" docAuthor="Shih, Hsi-Te, Cai, Yixiong & Chiu, Yuh-Wen" docDate="2019" docId="B7ED22AFC1D4E9AC5A278B309F9FD79D" docLanguage="en" docName="ZooKeys 817: 11-23" docOrigin="ZooKeys 817" docSource="http://dx.doi.org/10.3897/zookeys.817.29332" docTitle="Neocaridina fonticulata Shih, Cai & Chiu, 2019, sp. n." docType="treatment" docUuid="5F96C596-4AF1-43E1-971B-BA49C15D5E1F" docUuidSource="ZooBank" docVersion="5" lastPageNumber="11" masterDocId="FF9CFFB1254B9B58A43C430E2C27E72C" masterDocTitle="Neocaridinafonticulata, a new land-locked freshwater shrimp from Hengchun Peninsula, Taiwan (Decapoda, Caridea, Atyidae)" masterLastPageNumber="23" masterPageNumber="11" pageNumber="11" updateTime="1668166744403" 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>Neocaridinafonticulata, a new land-locked freshwater shrimp from Hengchun Peninsula, Taiwan (Decapoda, Caridea, Atyidae)</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>Shih, Hsi-Te</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>Cai, Yixiong</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>Chiu, Yuh-Wen</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>2019</mods:date>
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<mods:detail type="volume">
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<mods:number>817</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>11</mods:start>
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<mods:end>23</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.817.29332</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.817.29332</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-817-11</mods:identifier>
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<mods:identifier type="ZBK">F43B4D497D7E4DA89D5FA4D0040B1C33</mods:identifier>
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<mods:identifier type="ZooBank">F43B4D497D7E4DA89D5FA4D0040B1C33</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="154126804" LSID="urn:lsid:zoobank.org:act:5F96C596-4AF1-43E1-971B-BA49C15D5E1F" httpUri="http://treatment.plazi.org/id/B7ED22AFC1D4E9AC5A278B309F9FD79D" lastPageNumber="11" pageId="0" pageNumber="11">
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<subSubSection pageId="0" pageNumber="11" type="nomenclature">
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<paragraph pageId="0" pageNumber="11">
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<taxonomicName LSID="http://zoobank.org/5F96C596-4AF1-43E1-971B-BA49C15D5E1F" class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="11">sp. n.</taxonomicNameLabel>
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Figures 1, 2, 3, 4
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="materials_examined">
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<paragraph pageId="0" pageNumber="11">Material examined.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Holotype: male, cl 3.4 mm, NCHUZOOL 15004, a spring at Sheding, Kenting, Pingtung County, Taiwan,
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="21.957417">21°57'26.7"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="120.80987">120°48'35.5"E</geoCoordinate>
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, elevation of 150 m, coll. H.-T. Shih and Y. C. Gan, 1 July 2015. Paratypes: 13 males, cl 2.5-3.3 mm, NCHUZOOL 15005, 5 females, cl 2.6-3.8 mm, 2 ovigerous females, cl 3.6-3.7 mm, NCHUZOOL 15006; 1 male, cl 4.2 mm, NCHUZOOL 15007; 1 male, cl 3.9 mm, NCHUZOOL 15008; 7 males, cl 2.7-3.3 mm, 2 females, cl 3.6-3.8 mm, 2 ovigerous females, cl 3.5-3.6 mm, ZRC 2018.1013, same collection data as for holotype. 1 male, cl 3.5 mm, 1 damaged specimen, cl 4.4 mm, NCHUZOOL 15009, Sheding, Kenting, Pingtung County, Taiwan, 5 May 2015, coll. Y. C. Gan.
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</paragraph>
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<caption pageId="0" pageNumber="11">
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<paragraph pageId="0" pageNumber="11">
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Figure 1.
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<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
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sp. n.: A carapace and cephalic appendages, lateral view B telson, dorsal view C preanal carina, lateral view D right scaphocerite and antenna, ventral view E right mandible F right maxillula G right maxilla H right 1st maxilliped I right 2nd maxilliped J right 3rd maxilliped. Scale bars: 1.5 mm (A); 0.5 mm (B,
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<normalizedToken originalValue="E–J">E-J</normalizedToken>
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); 1 mm (C, D) (male, cl 3.0 mm, paratype, ZRC 2018.1013).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="materials_examined">
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<paragraph pageId="0" pageNumber="11">Other material.</paragraph>
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<paragraph pageId="0" pageNumber="11">3 males, 9 females, NCHUZOOL 15010, Sheding, Kenting, Pingtung County, Taiwan, coll. Y. C. Gan, 5 May 2015. 3 males, 11 females, 2 ovigerous females, NCHUZOOL 15011, two damaged males, ZRC 2018.1014, same collection data as for holotype.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="materials_examined">
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<paragraph pageId="0" pageNumber="11">Comparative material.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina ikiensis" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="ikiensis">Neocaridina ikiensis</taxonomicName>
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: 1 male, cl 4.6 mm, ZRC 2017.0960, 1 female, cl 5.1 mm, ZRC 2017.0961, 8 males, cl 3.0-5.4 mm, 8 females, cl 2.9-5.1 mm, ZRC 2017.0962, small stream at Kugiyama-hure, Gonoura Town, Iki City, Nagasaki Prefecture, Japan, coll. Yasuhiko Nakahara, 23 November 2015.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="diagnosis">
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<paragraph pageId="0" pageNumber="11">Diagnosis.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Rostrum short, straight, slightly sloping downwards, reaching mostly to end of 1st segment of antennular peduncle, rostral formula 1
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<normalizedToken originalValue="–3+8–15/1–">-3+8-15/1-</normalizedToken>
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4. Pterygostomian margin armed with an indistinct spine. 1st pereiopod carpus 1.2-1.5
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as high; chela 2.0-2.1
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad; fingers slightly longer than palm. 2nd pereiopod carpus 1.1-1.2
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as chela, 3.9-4.3
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as high; chela 2.1-2.3
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad; fingers 1.3-1.4
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as palm. 3rd pereiopod with propodus straight in females, slightly incurved in males, 2.7-3.0
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as dactylus; dactylus terminating in two claws, 4-6 accessory spines on flexor margin, strongly incurved in males. 5th pereiopod propodus 2.7-2.8
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as dactylus, dactylus terminating in one claw, with 46-54 spinules on flexor margin. Endopod of male 1st pleopod extending to 0.8
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<normalizedToken originalValue="×">x</normalizedToken>
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exopod length, inflated at distal
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<normalizedToken originalValue="¾">3/4</normalizedToken>
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, pyriform, 1.7
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide, appendix interna at base of inflated part, short. Appendix masculina of male 2nd pleopod cylindrical, reaching to 0.7 length of endopod, appendix interna reaching to 0.6 length of appendix masculina. Uropodal diaeresis with 13-14 movable spinules. Eggs 1.10
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<normalizedToken originalValue="×">x</normalizedToken>
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0.68 to 1.20
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<normalizedToken originalValue="×">x</normalizedToken>
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0.75 mm in diameter.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="description">
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<paragraph pageId="0" pageNumber="11">Description.</paragraph>
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<paragraph pageId="0" pageNumber="11">Rostrum short, straight, slightly sloping downwards, without distinct postrostral ridge, reaching slightly short of or slightly beyond end of 1st segment of antennular peduncle, occasionally reaching to, rarely beyond end of 2nd segment of antennular peduncle; armed dorsally with 9-18 (mode 13-15) very small teeth, including 1-3 (mode 2) on carapace, ventrally with 1-4 small teeth (mode 2-3). Antennal spine fused with inferior orbital angle. Pterygostomian margin sub-rectangular, armed with an indistinct spine.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Sixth pleomere in male 0.43cl, 1.40
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as 5th pleomere, slightly shorter than telson; 6th pleomere in female 0.48cl, 1.38
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as 5th pleomere, slightly shorter than telson. Telson 3.0
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide, with four or five pairs of dorsal spinules and one pair of dorsolateral spinules; posterior margin rounded, lined with four or five pairs of simple setae, lateral pair distinctly longer than intermediate pairs. Pre-anal carina moderately high, lacking spine.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Eyes well developed, anterior corneal margin reaching to 0.6
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<normalizedToken originalValue="×">x</normalizedToken>
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length of basal segment of antennular peduncle. Antennular peduncle 0.6
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as carapace; basal segment of antennular peduncle longer than combined length of 2nd and 3rd segments, anterolateral angle reaching 0.3 length of 2nd segment, 2nd segment distinctly longer than 3rd segment. Stylocerite reaching 0.7-0.8 length of basal segment of antennular peduncle. Scaphocerite 3.5
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide, with extension of the distolateral spine reaching end of antennular peduncle.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">Mandible with incisor process ending in irregular teeth; molar process truncated. Maxillule lower lacinia broadly rounded; upper lacinia elongate, with a row of 30 distinct spiniform setae on inner margin; palp short. Maxilla distal endite subdivided; palp short; scaphognathite tapering posteriorly with some long, curved setae at posterior end. 1st maxilliped with stout palp. 2nd maxilliped typical of genus, endopod with fused dactylus and propodal segments. 3rd maxilliped reaching to end of antennular peduncle, with ultimate segment slightly longer than penultimate segment.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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First four pereiopods with epipod. 1st pereiopod reaching slightly beyond distal end of basal segment of antennular peduncle; merus 1.8-2.1
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad, as long as carpus; carpus excavated anteriorly, shorter than chela, 1.2-1.5
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as high; chela 2.0-2.1
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad; fingers slightly longer than palm. 2nd pereiopod reaching end of antennular peduncle; merus shorter than carpus, 3.6-4.1
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad; carpus 1.1-1.2
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as chela, 3.9-4.3
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as high; chela 2.1-2.3
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad; fingers 1.3-1.4
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as palm. 3rd pereiopod reaching beyond end of antennular peduncle by dactylus; merus stout; propodus straight in females, slightly incurved in males, 2.7-3.0
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as dactylus (terminal claw included), 7.2-7.5
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad, numerous spinules on posterior margin; dactylus terminating in two claws, 4-6 accessory spines on flexor margin, strongly incurved in males. 4th pereiopod similar to 3rd pereiopod in form and length. 5th pereiopod reaching to end of 2nd segment of antennular peduncle, propodus 8.0-9.5
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as broad, 2.7-2.8
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as dactylus, dactylus 2.9-3.4
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide (spinules included), terminating in one claw, with 46-54 spinules on flexor margin.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Endopod of male 1st pleopod extending to 0.8
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<normalizedToken originalValue="×">x</normalizedToken>
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exopod length, inflated at distal
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<normalizedToken originalValue="¾">3/4</normalizedToken>
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, pyriform, 1.7
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide, with tiny spinules on distal margin of dorsal surface, appendix interna at base of inflated part, short. Appendix masculina of male 2nd pleopod cylindrical, reaching to about 0.7 length of endopod, inner and distal surface densely lined with long, stout spines, appendix interna reaching to 0.6 length of appendix masculina.
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</paragraph>
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<paragraph pageId="0" pageNumber="11">Uropodal diaeresis with 13-14 movable spinules.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Eggs 1.10
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<normalizedToken originalValue="×">x</normalizedToken>
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0.68 to 1.20
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<normalizedToken originalValue="×">x</normalizedToken>
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0.75 mm in diameter.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="colour in life">
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<paragraph pageId="0" pageNumber="11">Colour in life.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Body colour varying from translucent to light blue, with darker red-brown spots on dorsal surface and lighter red-brown spots on lateral surface of carapace; pleon usually with several dark red-brown vertical stripes on lower lateral surface, and white star-shaped pigment scattered on whole body (Figure 4
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<normalizedToken originalValue="A–D">A-D</normalizedToken>
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). Appendages mostly transparent.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="etymology">
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<paragraph pageId="0" pageNumber="11">Etymology.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
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is named after its known habitat, from the Latin root, fonticulus, for little spring.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="ecological notes">
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<paragraph pageId="0" pageNumber="11">Ecological notes.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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Specimens of the new species were collected from leaf litter layer of a small stream (Figure 4E, F) next to a spring outlet at a limestone hill. The collection site consists of concretized substrate and banks, representing the headwater of the stream. The water flow is slow, cool temperature (about 25 °C), neutral (pH 7.06-7.16), and with moderately high dissolved oxygen (7.33-7.70 mg/L). The freshwater crabs,
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<taxonomicName class="Malacostraca" family="Potamidae" genus="Candidiopotamon" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Candidiopotamon rathbuni" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="rathbuni">Candidiopotamon rathbuni</taxonomicName>
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(De Man, 1914) and
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<taxonomicName class="Malacostraca" family="Potamidae" genus="Geothelphusa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Geothelphusa ferruginea" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="ferruginea">Geothelphusa ferruginea</taxonomicName>
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Shy, Ng & Yu, 1994, were found to be sympatric with this new species. Ovigerous females were found in July.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="distribution">
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<paragraph pageId="0" pageNumber="11">Distribution.</paragraph>
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<paragraph pageId="0" pageNumber="11">Presently known only from Sheding, Kenting, southern Taiwan.</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="11" type="remarks">
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<paragraph pageId="0" pageNumber="11">Remarks.</paragraph>
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<paragraph pageId="0" pageNumber="11">
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With the short rostrum,
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<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
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sp. n. is morphologically most similar to the insular Chinese species
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<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina zhoushanensis" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="zhoushanensis">Neocaridina zhoushanensis</taxonomicName>
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Cai, 1996, originally described as a subspecies of
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<taxonomicName lsidName="N. denticulata" pageId="0" pageNumber="11" rank="species" species="denticulata">N. denticulata</taxonomicName>
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, from Zhoushan Islands of Zhejiang Province. It can be differentiated by the more slender chela of the 1st pereiopod (2.0-2.1
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<normalizedToken originalValue="×">x</normalizedToken>
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as long as wide in the new species vs. 1.6-1.7
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<normalizedToken originalValue="×">x</normalizedToken>
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in
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<taxonomicName lsidName="N. zhoushanensis" pageId="0" pageNumber="11" rank="species" species="zhoushanensis">N. zhoushanensis</taxonomicName>
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; cf. Figures 2A, 3B vs. fig. 10B in
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<bibRefCitation author="Cai, Y" journalOrPublisher="Acta Zootaxonimica Sinica" pageId="0" pageNumber="11" pagination="129 - 160" title="A revision of the genus Neocaridina (Crustacea: Decapoda: Atyidae)." volume="21" year="1996">Cai 1996</bibRefCitation>
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); the sexually dimorphic 3rd pereiopods (vs. no sexual dimorphism in
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<taxonomicName lsidName="N. zhoushanensis" pageId="0" pageNumber="11" rank="species" species="zhoushanensis">N. zhoushanensis</taxonomicName>
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); the slender dactylus of the 3rd pereiopods (2.9-3.4
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<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as wide (spinules included) vs. 2.8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. zhoushanensis" pageId="0" pageNumber="11" rank="species" species="zhoushanensis">N. zhoushanensis</taxonomicName>
|
||
; cf. Figures 2C, 3D vs. fig. 10E in
|
||
<bibRefCitation author="Cai, Y" journalOrPublisher="Acta Zootaxonimica Sinica" pageId="0" pageNumber="11" pagination="129 - 160" title="A revision of the genus Neocaridina (Crustacea: Decapoda: Atyidae)." volume="21" year="1996">Cai 1996</bibRefCitation>
|
||
), the spination of the dactylus of 5th pereiopods (with 46-54 spinules on flexor margin vs. 35-43 in
|
||
<taxonomicName lsidName="N. zhoushanensis" pageId="0" pageNumber="11" rank="species" species="zhoushanensis">N. zhoushanensis</taxonomicName>
|
||
); and the shorter appendix interna on the male 2nd pleopod, which reaches to 0.6 length of appendix masculina (vs. 0.7 in
|
||
<taxonomicName lsidName="N. zhoushanensis" pageId="0" pageNumber="11" rank="species" species="zhoushanensis">N. zhoushanensis</taxonomicName>
|
||
; cf. Figure 2H vs. fig. 9F in
|
||
<bibRefCitation author="Cai, Y" journalOrPublisher="Acta Zootaxonimica Sinica" pageId="0" pageNumber="11" pagination="129 - 160" title="A revision of the genus Neocaridina (Crustacea: Decapoda: Atyidae)." volume="21" year="1996">Cai 1996</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<caption pageId="0" pageNumber="11">
|
||
<paragraph pageId="0" pageNumber="11">
|
||
Figure 2.
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
|
||
sp. n.: pereiopods in lateral view. A right 1st pereiopod B right 2nd pereiopod C right 3rd pereiopod D same, dactylus E right 5th pereiopod F same, dactylus G right male 1st pleopod, front view H right male 2nd pleopod, internal view I diaeresis of left uropodal exopod. Scale bars: 1 mm (
|
||
<normalizedToken originalValue="A–C">A-C</normalizedToken>
|
||
, E); 0.2 mm (D, F); 0.5 mm (G, H); 0.2 mm (I) (male, cl 3.0 mm, paratype, ZRC 2018.1013).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="11">
|
||
With the relatively short rostrum,
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
|
||
sp. n. morphologically resembles two Taiwanese species,
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
Shih & Cai, 2007 and
|
||
<taxonomicName lsidName="N. ketagalan" pageId="0" pageNumber="11" rank="species" species="ketagalan">N. ketagalan</taxonomicName>
|
||
Shih & Cai, 2007. It differs from
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
(cf.
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
) by the shorter rostrum (falling slightly short of or reaching slightly beyond the end of the 1st segment of the antennular peduncle vs. reaching the midlength of the 2nd segment of the antennular peduncle or nearly reaching beyond it in
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
; cf. Figures 1A, 3A vs. figs 2A, 4A in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
); the more slender merus of the 1st pereiopod (1.8-2.0
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as high vs. 1.4-1.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
; Figures 2A, 3B vs. figs 3A, 4B in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
); the more slender carpus of the 2nd pereiopod (3.9-4.3
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as high vs. 3.6-3.8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
; Figures 2B, 3C vs. figs 3B, 4C in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
); the more slender male 1st pleopod (1.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as broad vs. 1.4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
; Figure 2G vs. fig. 3G in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
); and the shorter endopod of the male 1st pleopod (0.8
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
length of exopod vs. 0.9
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. saccam" pageId="0" pageNumber="11" rank="species" species="saccam">N. saccam</taxonomicName>
|
||
; Figure 2G vs. fig. 3G in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="11">
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
|
||
sp. n. can be separated from
|
||
<taxonomicName lsidName="N. ketagalan" pageId="0" pageNumber="11" rank="species" species="ketagalan">N. ketagalan</taxonomicName>
|
||
(cf.
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
) by its shorter rostrum (reaching from slightly short of to slightly beyond end of 1st segment of antennular peduncle vs. reaching the middle or end of the 2nd segment of the antennular peduncle; Figures 1A, 3A vs. figs 5A, 6A in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
). It also differs from
|
||
<taxonomicName lsidName="N. ketagalan" pageId="0" pageNumber="11" rank="species" species="ketagalan">N. ketagalan</taxonomicName>
|
||
(cf.
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
) by the slender male 1st pleopod (1.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as broad vs. 1.4
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. ketagalan" pageId="0" pageNumber="11" rank="species" species="ketagalan">N. ketagalan</taxonomicName>
|
||
; Figure 2G vs. fig. 5J in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
); the male 2nd pleopod appendix masculina being half the endopod length (vs. 0.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. ketagalan" pageId="0" pageNumber="11" rank="species" species="ketagalan">N. ketagalan</taxonomicName>
|
||
; Figure 2H vs. fig. 5K in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
); and the appendix interna of the male 2nd pleopod being relatively longer, reaching to 0.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
length of appendix masculine (vs. 0.6
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. ketagalan" pageId="0" pageNumber="11" rank="species" species="ketagalan">N. ketagalan</taxonomicName>
|
||
; Figure 2H vs. fig. 5K in
|
||
<bibRefCitation author="Shih, HT" journalOrPublisher="Zoological Studies" pageId="0" pageNumber="11" pagination="680 - 694" title="Two new species of land-locked freshwater shrimp genus Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) from Taiwan, with notes on the speciation within Taiwan Island." volume="46" year="2007">Shih and Cai 2007</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<caption pageId="0" pageNumber="11">
|
||
<paragraph pageId="0" pageNumber="11">
|
||
Figure 3.
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
|
||
sp. n.: A carapace and cephalic appendages, lateral view B right 1st pereiopod C right 2nd pereiopod D left 3rd pereiopod E same, dactylus F left 5th pereiopod G same, dactylus. Scale bars: 1.5 mm (A); 1 mm (
|
||
<normalizedToken originalValue="B–D">B-D</normalizedToken>
|
||
, F); 0.2 mm (E, G) (female, cl 3.8 mm, paratype, ZRC 2018.1013).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="11">
|
||
With its relatively short rostrum,
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
|
||
sp. n. morphologically also resembles the recently described Japanese species
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina ikiensis" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="ikiensis">Neocaridina ikiensis</taxonomicName>
|
||
Shih, Cai, Niwa & Nakahara, 2017. It can be differentiated from the latter by its shorter rostrum (reaching from slightly short of to slightly beyond the end of the 1st segment of antennular peduncle vs. reaching slightly short of to distinctly beyond the end of the 2nd segment of antennular peduncle; cf. Figures 1A, 3A vs. figs 2A, 4A in
|
||
<bibRefCitation pageId="0" pageNumber="11">Shih et al. 2017</bibRefCitation>
|
||
). The propodus and dactylus of the 3rd pereiopod of the new species displays sexual dimorphism (vs. no sexual dimorphism in
|
||
<taxonomicName lsidName="N. ikiensis" pageId="0" pageNumber="11" rank="species" species="ikiensis">N. ikiensis</taxonomicName>
|
||
); the male 2nd pleopod appendix masculina is 0.7
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
endopod length (vs. 0.5
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
in
|
||
<taxonomicName lsidName="N. ikiensis" pageId="0" pageNumber="11" rank="species" species="ikiensis">N. ikiensis</taxonomicName>
|
||
; Figure 2H vs. fig. 3I in
|
||
<bibRefCitation pageId="0" pageNumber="11">Shih et al. 2017</bibRefCitation>
|
||
); and the appendix interna of the male 2nd pleopod is relatively shorter (reaching to 0.6 length of appendix masculina vs. 0.8 in
|
||
<taxonomicName lsidName="N. ikiensis" pageId="0" pageNumber="11" rank="species" species="ikiensis">N. ikiensis</taxonomicName>
|
||
; Figure 2H vs. fig. 3J in
|
||
<bibRefCitation pageId="0" pageNumber="11">Shih et al. 2017</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="11">
|
||
With the relatively slender endopod of the male 1st pleopod, the new species is similar to
|
||
<taxonomicName lsidName="N. koreana" pageId="0" pageNumber="11" rank="species" species="koreana">N. koreana</taxonomicName>
|
||
Kubo, 1938. It can be separated from the latter by the relatively shorter rostrum, which mostly reaches to or slightly beyond the end of the 1st segment of antennular peduncle vs. almost reaching to or slightly beyond antennular peduncle in
|
||
<taxonomicName lsidName="N. koreana" pageId="0" pageNumber="11" rank="species" species="koreana">N. koreana</taxonomicName>
|
||
(cf.
|
||
<bibRefCitation author="Kubo, I" journalOrPublisher="Journal of the Imperial Fisheries Institute, Tokyo" pageId="0" pageNumber="11" pagination="67 - 100" title="On the Japanese atyid shrimps." volume="33" year="1938">Kubo 1938</bibRefCitation>
|
||
); and the fewer ventral rostral teeth (2-6 teeth, mode 2-4 vs. 4-6, average 5.6 in
|
||
<taxonomicName lsidName="N. koreana" pageId="0" pageNumber="11" rank="species" species="koreana">N. koreana</taxonomicName>
|
||
(cf.
|
||
<bibRefCitation author="Kubo, I" journalOrPublisher="Journal of the Imperial Fisheries Institute, Tokyo" pageId="0" pageNumber="11" pagination="67 - 100" title="On the Japanese atyid shrimps." volume="33" year="1938">Kubo 1938</bibRefCitation>
|
||
)).
|
||
</paragraph>
|
||
<caption pageId="0" pageNumber="11">
|
||
<paragraph pageId="0" pageNumber="11">
|
||
Figure 4. Live colouration of
|
||
<taxonomicName class="Malacostraca" family="Atyidae" genus="Neocaridina" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Neocaridina fonticulata" order="Decapoda" pageId="0" pageNumber="11" phylum="Arthropoda" rank="species" species="fonticulata">Neocaridina fonticulata</taxonomicName>
|
||
sp. n. (
|
||
<normalizedToken originalValue="A–D">A-D</normalizedToken>
|
||
) and its habitat in Kenting, southern Taiwan (
|
||
<normalizedToken originalValue="E–F">E-F</normalizedToken>
|
||
). Specimens were collected from the type locality on 1 July 2015 and kept in aquarium for observation and photography.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |