265 lines
44 KiB
XML
265 lines
44 KiB
XML
<document id="5ACF5B9CA0F2B2898217C97234CC8887" ID-CLB-Dataset="37321" ID-DOI="10.11646/zootaxa.4209.1.1" ID-GBIF-Dataset="2de5b7bf-3975-458a-b200-07ec69f4e013" ID-ISSN="1175-5326" ID-Zenodo-Dep="272646" ID-ZooBank="849BAB5C-464A-4B4A-A586-5742411EDC01" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1484407904318" checkinUser="plazi" docAuthor="Ng, Peter K. L. & Castro, Peter" docDate="2016" docId="F16BFB33FFB0FFEFFF6AF89AFCFBFB26" docLanguage="en" docName="zootaxa.4209.1.1.pdf.imf" docOrigin="Zootaxa 4209 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Chasmocarcinus gemmatus Ng & Castro, 2016, n. sp." docType="treatment" docVersion="8" lastPageNumber="21" masterDocId="0D52834BFFA3FFFBFFFDFFD1FFCDFFB9" masterDocTitle="Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea)" masterLastPageNumber="182" masterPageNumber="1" pageNumber="20" updateTime="1698435566492" updateUser="ExternalLinkService">
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<mods:titleInfo id="CF34176C95ACA136DB59A6550C3C60DA">
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<mods:title id="8F6352896B4B7DC2D11E440D27E4D885">Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea)</mods:title>
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<mods:name id="9073F03C1AD3DB298DC2EF57E1F007D1" type="personal">
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<mods:namePart id="B4956AC73CF247706AF4408A3146A948">Ng, Peter K. L.</mods:namePart>
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<mods:name id="EFAF198D6E56F193AC86E62B795CE009" type="personal">
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<mods:roleTerm id="BDC4EE6A2DC6B19D82E35758533887E1">Author</mods:roleTerm>
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<mods:namePart id="0166D5536655E4E1ACC8F0E187440FDA">Castro, Peter</mods:namePart>
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<mods:typeOfResource id="8DA4CED2C30F1689104365DA3748CBC2">text</mods:typeOfResource>
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<mods:title id="A890E382589EC59DF6B6BFF9B8D496E4">Zootaxa</mods:title>
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<mods:part id="32EC551833FEBB5E73D161CE8C25552A">
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<mods:date id="905DE2A4B80D4669A4ECC9D5E8864CD9">2016</mods:date>
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<mods:number id="CF1792F341AB670B9FF3EB2D2D8B2F2A">4209</mods:number>
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<mods:number id="004C2351C1FB40AF9D4610C7595285B8">1</mods:number>
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<mods:classification id="FCAE865E975604B4476DC67D6ADE57EE">journal article</mods:classification>
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<mods:identifier id="B665D6C909A28C7FAC202CA2012EF856" type="DOI">10.11646/zootaxa.4209.1.1</mods:identifier>
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<treatment id="F16BFB33FFB0FFEFFF6AF89AFCFBFB26" ID-DOI="http://doi.org/10.5281/zenodo.5617062" ID-GBIF-Taxon="127419582" ID-Zenodo-Dep="5617062" LSID="urn:lsid:plazi:treatment:F16BFB33FFB0FFEFFF6AF89AFCFBFB26" httpUri="http://treatment.plazi.org/id/F16BFB33FFB0FFEFFF6AF89AFCFBFB26" lastPageId="20" lastPageNumber="21" pageId="19" pageNumber="20">
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<subSubSection id="31D819AEFFB0FFE8FF6AF89AFD2FF83F" pageId="19" pageNumber="20" type="nomenclature">
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<paragraph id="797D4A25FFB0FFE8FF6AF89AFDE2F8DC" blockId="19.[151,738,1867,1926]" box="[151,559,1867,1893]" pageId="19" pageNumber="20">
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<heading id="2235FD49FFB0FFE8FF6AF89AFDE2F8DC" bold="true" box="[151,559,1867,1893]" fontSize="11" level="1" pageId="19" pageNumber="20" reason="1">
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<emphasis id="4BB69637FFB0FFE8FF6AF89AFDE2F8DC" bold="true" box="[151,559,1867,1893]" pageId="19" pageNumber="20">
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<taxonomicName id="BEC231A6FFB0FFE8FF6AF89AFE2BF8DC" ID-CoL="TQ7C" box="[151,486,1867,1893]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="19" pageNumber="20" phylum="Arthropoda" rank="species" species="gemmatus" status="sp. nov.">
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<emphasis id="4BB69637FFB0FFE8FF6AF89AFE2BF8DC" bold="true" box="[151,486,1867,1893]" italics="true" pageId="19" pageNumber="20">Chasmocarcinus gemmatus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="50852B4CFFB0FFE8FE10F89AFDE2F8DC" box="[493,559,1867,1893]" pageId="19" pageNumber="20" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="797D4A25FFB0FFE8FF6AF8BCFD2FF83F" blockId="19.[151,738,1867,1926]" box="[151,738,1901,1926]" pageId="19" pageNumber="20">
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(
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<figureCitation id="E1F956A0FFB0FFE8FF62F8BCFF21F83F" box="[159,236,1901,1926]" captionStart="FIGURE 3" captionStartId="18.[151,250,1437,1459]" captionTargetBox="[151,1436,177,1420]" captionTargetId="figure@18.[151,1436,177,1420]" captionTargetPageId="18" captionText="FIGURE 3. Overall dorsal view of species of Chasmocarcinus. A, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); B, C. chacei, Gulf of Mexico: female 7.8 × 9.5 mm (USNM 61489); C, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); D, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); E, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); F, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 a)." httpUri="https://zenodo.org/record/272649/files/figure.png" pageId="19" pageNumber="20">Figs. 3</figureCitation>
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F; 5C; 21G; 29A; 36A, B; 49G; 56F; 64G‒I)
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</paragraph>
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</subSubSection>
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<subSubSection id="31D819AEFFB0FFE8FF6AF864FBB2F84C" pageId="19" pageNumber="20" type="materials_examined">
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<paragraph id="797D4A25FFB0FFE8FF6AF864FBB2F84C" blockId="19.[151,1436,1970,2037]" pageId="19" pageNumber="20">
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<materialsCitation id="C9AA4078FFB0FFE8FF6AF864FBB6F84C" ID-GBIF-Occurrence="1424726013" collectingDate="1973-04-22" collectionCode="SIO" collectorName="Golfo de Nicoya & C. Hubbs" country="Costa Rica" elevation="86" latitude="9.628333" location="Golfo de Nicoya" longLatPrecision="129" longitude="-84.863335" municipality="Agassiz" pageId="19" pageNumber="20" specimenCount="2" typeStatus="holotype">
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<emphasis id="4BB69637FFB0FFE8FF6AF864FEF0F877" bold="true" box="[151,317,1973,1998]" pageId="19" pageNumber="20">
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<typeStatus id="A679F487FFB0FFE8FF6AF864FF1FF877" box="[151,210,1973,1998]" pageId="19" pageNumber="20">Type</typeStatus>
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material
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</emphasis>
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.
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<typeStatus id="A679F487FFB0FFE8FEB6F864FE7EF877" box="[331,435,1973,1998]" pageId="19" pageNumber="20" type="holotype">Holotype</typeStatus>
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male (7.7 ×
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<quantity id="BE3AE7C0FFB0FFE8FDBFF864FD6BF877" box="[578,678,1973,1998]" metricMagnitude="-2" metricUnit="m" metricValue="1.16" pageId="19" pageNumber="20" unit="mm" value="11.6">11.6 mm</quantity>
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) (
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<collectionCode id="1FD3D2E0FFB0FFE8FD41F867FD26F877" box="[700,747,1974,1998]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14844" name="Scripps Institution of Oceanography" pageId="19" pageNumber="20">SIO</collectionCode>
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C 1205),
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<collectingCountry id="01D50AB5FFB0FFE8FCA6F867FC15F877" box="[859,984,1973,1998]" name="Costa Rica" pageId="19" pageNumber="20">Costa Rica</collectingCountry>
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,
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<collectorName id="D4372FF3FFB0FFE8FC1EF864FB6CF877" box="[995,1185,1973,1998]" pageId="19" pageNumber="20">
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<location id="7C1D1CFEFFB0FFE8FC1EF864FB6CF877" LSID="urn:lsid:plazi:treatment:F16BFB33FFB0FFEFFF6AF89AFCFBFB26:7C1D1CFEFFB0FFE8FC1EF864FB6CF877" box="[995,1185,1973,1998]" country="Costa Rica" latitude="9.628333" longLatPrecision="129" longitude="-84.863335" municipality="Agassiz" name="Golfo de Nicoya" pageId="19" pageNumber="20">Golfo de Nicoya</location>
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</collectorName>
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,
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<collectingMunicipality id="9919D05FFFB0FFE8FB51F867FACFF874" box="[1196,1282,1974,1997]" pageId="19" pageNumber="20">
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<emphasis id="4BB69637FFB0FFE8FB51F867FACFF874" box="[1196,1282,1974,1997]" italics="true" pageId="19" pageNumber="20">Agassiz</emphasis>
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</collectingMunicipality>
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, 0
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<geoCoordinate id="1CF62CE2FFB0FFE8FAE3F867FA51F877" box="[1310,1436,1970,1998]" direction="north" orientation="latitude" pageId="19" pageNumber="20" precision="92" value="9.623333">9°37.4’N—</geoCoordinate>
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0
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<geoCoordinate id="1CF62CE2FFB0FFE8FF58F80CFEC7F84C" box="[165,266,2009,2037]" direction="north" orientation="latitude" pageId="19" pageNumber="20" precision="92" value="9.628333">9°37.7’N</geoCoordinate>
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,
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<geoCoordinate id="1CF62CE2FFB0FFE8FEE8F80CFE64F84C" box="[277,425,2009,2037]" direction="west" orientation="longitude" pageId="19" pageNumber="20" precision="92" value="-84.816666">84°49.0’W—</geoCoordinate>
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<geoCoordinate id="1CF62CE2FFB0FFE8FE54F80CFDD2F84C" box="[425,543,2009,2037]" direction="west" orientation="longitude" pageId="19" pageNumber="20" precision="92" value="-84.863335">84°51.8’W</geoCoordinate>
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,
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<elevation id="F2EFAD16FFB0FFE8FDD6F80DFDABF84D" box="[555,614,2012,2037]" metricMagnitude="1" metricUnit="m" metricValue="8.6" pageId="19" pageNumber="20" unit="m" value="86.0">
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||
<quantity id="BE3AE7C0FFB0FFE8FDD6F80DFDABF84D" box="[555,614,2012,2037]" metricMagnitude="1" metricUnit="m" metricValue="8.6" pageId="19" pageNumber="20" unit="m" value="86.0">86 m</quantity>
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||
</elevation>
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||
, 25-feet otter trawl,
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<collectorName id="D4372FF3FFB0FFE8FCB7F80CFC7EF84C" box="[842,947,2012,2037]" pageId="19" pageNumber="20">C. Hubbs</collectorName>
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||
coll.,
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<collectingDate id="1D38950DFFB0FFE8FC04F80CFBB6F84C" box="[1017,1147,2013,2037]" pageId="19" pageNumber="20" value="1973-04-22">
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||
<date id="0D7C6CE5FFB0FFE8FC04F80CFBB6F84C" box="[1017,1147,2013,2037]" pageId="19" pageNumber="20" value="1973-04-22">22.04.1973</date>
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</collectingDate>
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</materialsCitation>
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||
.
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="31D819AEFFB7FFEFFF3AFF6DFCE1FD3C" pageId="20" pageNumber="21" type="diagnosis">
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<paragraph id="797D4A25FFB7FFEFFF3AFF6DFCE1FD3C" blockId="20.[151,1436,188,1184]" pageId="20" pageNumber="21">
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<emphasis id="4BB69637FFB7FFEFFF3AFF6DFEF7FF6C" bold="true" box="[199,314,188,213]" pageId="20" pageNumber="21">Diagnosis</emphasis>
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. Anterolateral margins of carapace (
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<figureCitation id="E1F956A0FFB7FFEFFD21FF6DFCD2FF6D" box="[732,799,188,213]" captionStart="FIGURE 3" captionStartId="18.[151,250,1437,1459]" captionTargetBox="[151,1436,177,1420]" captionTargetId="figure@18.[151,1436,177,1420]" captionTargetPageId="18" captionText="FIGURE 3. Overall dorsal view of species of Chasmocarcinus. A, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); B, C. chacei, Gulf of Mexico: female 7.8 × 9.5 mm (USNM 61489); C, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); D, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); E, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); F, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 a)." httpUri="https://zenodo.org/record/272649/files/figure.png" pageId="20" pageNumber="21">Fig. 3</figureCitation>
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F) smooth, not cristate. Orbits long, proportionally long eye peduncles (
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<figureCitation id="E1F956A0FFB7FFEFFEB7FF0EFE53FF41" box="[330,414,223,248]" captionStart="FIGURE 21" captionStartId="94.[151,250,1835,1857]" captionTargetBox="[151,1436,195,1813]" captionTargetId="figure@94.[151,1436,195,1813]" captionTargetPageId="94" captionText="FIGURE 21. Frontal view of cephalothorax of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); C, D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype female 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 c)." httpUri="https://zenodo.org/record/272667/files/figure.png" pageId="20" pageNumber="21">Fig. 21</figureCitation>
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G). Posterior margin of epistome (
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<figureCitation id="E1F956A0FFB7FFEFFCD1FF0EFC4DFF41" box="[812,896,223,248]" captionStart="FIGURE 21" captionStartId="94.[151,250,1835,1857]" captionTargetBox="[151,1436,195,1813]" captionTargetId="figure@94.[151,1436,195,1813]" captionTargetPageId="94" captionText="FIGURE 21. Frontal view of cephalothorax of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); C, D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype female 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 c)." httpUri="https://zenodo.org/record/272667/files/figure.png" pageId="20" pageNumber="21">Fig. 21</figureCitation>
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G) with semicircular median lobe with median fissure, lateral margins straight. Antennular articles relatively short (
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<figureCitation id="E1F956A0FFB7FFEFFC3BFED5FBD3FEA5" box="[966,1054,260,285]" captionStart="FIGURE 21" captionStartId="94.[151,250,1835,1857]" captionTargetBox="[151,1436,195,1813]" captionTargetId="figure@94.[151,1436,195,1813]" captionTargetPageId="94" captionText="FIGURE 21. Frontal view of cephalothorax of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); C, D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype female 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 c)." httpUri="https://zenodo.org/record/272667/files/figure.png" pageId="20" pageNumber="21">Fig. 21</figureCitation>
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G). Third maxilliped (
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<figureCitation id="E1F956A0FFB7FFEFFAD5FED5FAB2FEA5" box="[1320,1407,260,285]" captionStart="FIGURE 29" captionStartId="102.[151,250,1767,1789]" captionTargetBox="[209,1378,193,1745]" captionTargetId="figure@102.[209,1378,193,1745]" captionTargetPageId="102" captionText="FIGURE 29. Third maxilliped of species of Chasmocarcinus and Deltopelta n. gen. A, Chasmocarcinus gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); B, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 6 c); C, Chasmocarcinus latipes, Mexico: holotype female 12.4 × 14.4 mm (USNM 21592); D, Chasmocarcinus latipes, Ecuador: male 10.5 × 14.5 mm (AMNH 1941 - 10668); E, Chasmocarcinus latipes, Mexico: female 9.2 × 13.0 mm (AMNH 16262, holotype female of Chasmocarcinus ferrugineus Glassell, 1936); F, Chasmocarcinus longipes, Colombia: paratype male 5.5 × 6.4 mm (USNM 78785); G, C. meloi, Brazil: holotype male 5.3 × 6.2 mm (after Coelho & Coelho 1998: fig. 8 c); H, Chasmocarcinus mississippiensis, Gulf of Mexico: male 7.2 × 8.8 mm (USNM 101082); I, Deltopelta obliquus, Bahamas: holotype male 5.2 × 5.1 mm (USNM 20509)." httpUri="https://zenodo.org/record/272675/files/figure.png" pageId="20" pageNumber="21">Fig. 29</figureCitation>
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A) ischium elongated, about same size as ovate merus, leaving gap between maxillipeds. Bulging pterygostomial region, clearly visible from dorsal view (
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<figureCitation id="E1F956A0FFB7FFEFFD9AFE9DFD66FEDC" box="[615,683,332,357]" captionStart="FIGURE 5" captionStartId="28.[151,250,1766,1788]" captionTargetBox="[151,1436,193,1745]" captionTargetId="figure@28.[151,1436,193,1745]" captionTargetPageId="28" captionText="FIGURE 5. Overall dorsal view of species of Chasmocarcinus, Amboplax n. gen. and Deltopelta n. gen. A, Amboplax peresi, Brazil: male 5.1 × 6.4 mm (ZRC 2015.217); B, Amboplax peresi, Brazil: ovigerous female 4.9 × 6.2 mm (ZRC 2015.217); C, Chasmocarcinus gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); D, Chasmocarcinus latipes, Ecuador: male 10.5 × 14.5 mm (AMNH 1941 - 10668); E, Deltopelta obliquus, A, Bahamas: holotype male 5.2 × 5.1 mm (USNM 20509); F, Deltopelta obliquus, Belize: female 10.7 × 13.0 mm (PMNH, holotype of Hephthopelta superba); G, Deltopelta obliquus, Belize: female 10.7 × 13.0 mm (PMNH, holotype of Hephthopelta superba, after Boone 1927: fig. 5)." httpUri="https://zenodo.org/record/272651/files/figure.png" pageId="20" pageNumber="21">Fig. 5</figureCitation>
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C). Fingers of major chela of male (
|
||
<figureCitation id="E1F956A0FFB7FFEFFBB9FE9DFB58FEDC" box="[1092,1173,332,357]" captionStart="FIGURE 36" captionStartId="109.[151,250,1785,1807]" captionTargetBox="[151,1436,193,1764]" captionTargetId="figure@109.[151,1436,193,1764]" captionTargetPageId="109" captionText="FIGURE 36. Chelae of species of Chasmocarcinus. A, B, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); C, D, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 6 e, f); E, C. latipes, Mexico: holotype female 12.4 × 14.4 mm (USNM 21592); F, C. latipes, Mexico: female 9.2 × 13.0 mm (AMNH 16262, holotype female of Chasmocarcinus ferrugineus Glassell, 1936); G, H, C. latipes, Ecuador: male 10.5 × 14.5 mm (AMNH 1941 - 10668); I, J, C. longipes, Colombia: paratype male 5.5 × 6.4 mm (USNM 78785)." httpUri="https://zenodo.org/record/272682/files/figure.png" pageId="20" pageNumber="21">Fig. 36</figureCitation>
|
||
A) proportionally long, curved, slightly longer than propodus in dorsal view; pollex as long as dactylus, with short teeth, larger along proximal cutting margin, submarginal parts of cutting edge of dactylus lined with dense short setae. Fingers of
|
||
<taxonomicName id="BEC231A6FFB7FFEFFF6AFE66FF17FE69" box="[151,218,439,464]" class="Malacostraca" family="Chasmocarcinidae" genus="Camatopsis" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="minor">minor</taxonomicName>
|
||
chela of males (
|
||
<figureCitation id="E1F956A0FFB7FFEFFE61FE66FE22FE69" box="[412,495,439,464]" captionStart="FIGURE 36" captionStartId="109.[151,250,1785,1807]" captionTargetBox="[151,1436,193,1764]" captionTargetId="figure@109.[151,1436,193,1764]" captionTargetPageId="109" captionText="FIGURE 36. Chelae of species of Chasmocarcinus. A, B, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); C, D, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 6 e, f); E, C. latipes, Mexico: holotype female 12.4 × 14.4 mm (USNM 21592); F, C. latipes, Mexico: female 9.2 × 13.0 mm (AMNH 16262, holotype female of Chasmocarcinus ferrugineus Glassell, 1936); G, H, C. latipes, Ecuador: male 10.5 × 14.5 mm (AMNH 1941 - 10668); I, J, C. longipes, Colombia: paratype male 5.5 × 6.4 mm (USNM 78785)." httpUri="https://zenodo.org/record/272682/files/figure.png" pageId="20" pageNumber="21">Fig. 36</figureCitation>
|
||
B) scissor-like; with small, sharp teeth. Outer margin of cheliped carpus (
|
||
<figureCitation id="E1F956A0FFB7FFEFFAC3FE66FA4FFE69" box="[1342,1410,439,464]" captionStart="FIGURE 3" captionStartId="18.[151,250,1437,1459]" captionTargetBox="[151,1436,177,1420]" captionTargetId="figure@18.[151,1436,177,1420]" captionTargetPageId="18" captionText="FIGURE 3. Overall dorsal view of species of Chasmocarcinus. A, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); B, C. chacei, Gulf of Mexico: female 7.8 × 9.5 mm (USNM 61489); C, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); D, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); E, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); F, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 a)." httpUri="https://zenodo.org/record/272649/files/figure.png" pageId="20" pageNumber="21">Fig. 3</figureCitation>
|
||
F) with blunt tooth. Ambulatory legs (
|
||
<figureCitation id="E1F956A0FFB7FFEFFDD8FE0DFDAAFE4D" box="[549,615,476,501]" captionStart="FIGURE 3" captionStartId="18.[151,250,1437,1459]" captionTargetBox="[151,1436,177,1420]" captionTargetId="figure@18.[151,1436,177,1420]" captionTargetPageId="18" captionText="FIGURE 3. Overall dorsal view of species of Chasmocarcinus. A, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); B, C. chacei, Gulf of Mexico: female 7.8 × 9.5 mm (USNM 61489); C, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); D, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); E, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); F, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 a)." httpUri="https://zenodo.org/record/272649/files/figure.png" pageId="20" pageNumber="21">Fig. 3</figureCitation>
|
||
F) proportionally short, folded P5 merus only reaching middle portion of anterolateral margin; no subdistal spur on P5 dactylus. Fused thoracic sternites 1, 2 (
|
||
<figureCitation id="E1F956A0FFB7FFEFFBA8FE2EFB6AFDA1" box="[1109,1191,511,536]" captionStart="FIGURE 49" captionStartId="122.[151,250,1851,1873]" captionTargetBox="[185,1379,193,1821]" captionTargetId="figure@122.[185,1379,193,1821]" captionTargetPageId="122" captionText="FIGURE 49. Anterior thoracic sternum and male pleon of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B, C. typicus, Brazil: male 4.0 × 5.1 mm (MCZ CRU- 10993, holotype of Chasmocarcinus rathbuni); C, C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 7 c)." httpUri="https://zenodo.org/record/272695/files/figure.png" pageId="20" pageNumber="21">Fig. 49</figureCitation>
|
||
G) broadly triangular, proportionally narrow, long. Male pleon (
|
||
<figureCitation id="E1F956A0FFB7FFEFFD86FDF5FD17FD85" box="[635,730,548,573]" captionStart="FIGURE 49" captionStartId="122.[151,250,1851,1873]" captionTargetBox="[185,1379,193,1821]" captionTargetId="figure@122.[185,1379,193,1821]" captionTargetPageId="122" captionText="FIGURE 49. Anterior thoracic sternum and male pleon of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B, C. typicus, Brazil: male 4.0 × 5.1 mm (MCZ CRU- 10993, holotype of Chasmocarcinus rathbuni); C, C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 7 c)." httpUri="https://zenodo.org/record/272695/files/figure.png" pageId="20" pageNumber="21">Figs. 49</figureCitation>
|
||
G, 56F) with proportionally long, narrow telson. G1 slender, widened subdistal half, spinules along distal third (
|
||
<figureCitation id="E1F956A0FFB7FFEFFD31FD96FCD1FDD9" box="[716,796,583,608]" captionStart="FIGURE 64" captionStartId="137.[151,250,1869,1891]" captionTargetBox="[174,1364,199,1841]" captionTargetId="figure@137.[151,1436,193,1847]" captionTargetPageId="137" captionText="FIGURE 64. Gonopods and epistomes of species of Chasmocarcinus. A ‒ E, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); F, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); G ‒ I, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205). A, dorsal view of right G 1; B, ventral view of right G 1; C, ventral view of distal part of distal part of right G 1; D, right G 2; E, F, posterior margin of epistome; G, ventral view of left G 1; H, dorsal view of left G 1; I, left G 2. Scales: A, B, D = 0.25 mm; E ‒ I = 0.5 mm; C = 0.05 mm." httpUri="https://zenodo.org/record/272710/files/figure.png" pageId="20" pageNumber="21">Fig. 64</figureCitation>
|
||
G, H). G2 (
|
||
<figureCitation id="E1F956A0FFB7FFEFFC6BFD96FC2BFDD9" box="[918,998,583,608]" captionStart="FIGURE 64" captionStartId="137.[151,250,1869,1891]" captionTargetBox="[174,1364,199,1841]" captionTargetId="figure@137.[151,1436,193,1847]" captionTargetPageId="137" captionText="FIGURE 64. Gonopods and epistomes of species of Chasmocarcinus. A ‒ E, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); F, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); G ‒ I, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205). A, dorsal view of right G 1; B, ventral view of right G 1; C, ventral view of distal part of distal part of right G 1; D, right G 2; E, F, posterior margin of epistome; G, ventral view of left G 1; H, dorsal view of left G 1; I, left G 2. Scales: A, B, D = 0.25 mm; E ‒ I = 0.5 mm; C = 0.05 mm." httpUri="https://zenodo.org/record/272710/files/figure.png" pageId="20" pageNumber="21">
|
||
Fig.
|
||
<date id="0D7C6CE5FFB7FFEFFC34FD96FC2BFDD9" box="[969,998,583,608]" pageId="20" pageNumber="21" value="1964-01">64</date>
|
||
</figureCitation>
|
||
I) straight, slender, distal segment long, slightly curved; about 3/4 as long as G1. Female unknown.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="31D819AEFFB7FFEFFF3AFD5EFCA6FD75" pageId="20" pageNumber="21" type="etymology">
|
||
<paragraph id="797D4A25FFB7FFEFFF3AFD5EFCA6FD75" blockId="20.[151,1436,188,1184]" pageId="20" pageNumber="21">
|
||
<emphasis id="4BB69637FFB7FFEFFF3AFD5EFE8BFD11" bold="true" box="[199,326,655,680]" pageId="20" pageNumber="21">Etymology</emphasis>
|
||
. The name is derived from the Latin for “twin,” alluding to the close resemblance of this species to its analogous
|
||
<collectingRegion id="BB0684C7FFB7FFEFFECCFD64FE41FD75" box="[305,396,693,716]" country="Solomon Islands" name="Western" pageId="20" pageNumber="21">Western</collectingRegion>
|
||
Atlantic species,
|
||
<taxonomicName id="BEC231A6FFB7FFEFFDAEFD65FCA9FD75" box="[595,868,692,717]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFDAEFD65FCA9FD75" box="[595,868,692,717]" italics="true" pageId="20" pageNumber="21">Chasmocarcinus typicus</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="31D819AEFFB7FFEFFF3AFD06FC3FFBC4" pageId="20" pageNumber="21" type="discussion">
|
||
<paragraph id="797D4A25FFB7FFEFFF3AFD06FC3FFBC4" blockId="20.[151,1436,188,1184]" pageId="20" pageNumber="21">
|
||
<emphasis id="4BB69637FFB7FFEFFF3AFD06FEF9FD49" bold="true" box="[199,308,727,752]" pageId="20" pageNumber="21">Remarks</emphasis>
|
||
.
|
||
<taxonomicName id="BEC231A6FFB7FFEFFEBFFD06FDBBFD49" box="[322,630,727,752]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="gemmatus" status="sp. nov.">
|
||
<emphasis id="4BB69637FFB7FFEFFEBFFD06FDBBFD49" box="[322,630,727,752]" italics="true" pageId="20" pageNumber="21">Chasmocarcinus gemmatus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="50852B4CFFB7FFEFFD82FD06FD73FD49" box="[639,702,727,752]" pageId="20" pageNumber="21" rank="species">
|
||
<emphasis id="4BB69637FFB7FFEFFD82FD06FD73FD49" bold="true" box="[639,702,727,752]" pageId="20" pageNumber="21">n. sp.</emphasis>
|
||
</taxonomicNameLabel>
|
||
is most similar to
|
||
<taxonomicName id="BEC231A6FFB7FFEFFC6FFD09FBC9FD49" box="[914,1028,728,752]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFC6FFD09FBC9FD49" box="[914,1028,728,752]" italics="true" pageId="20" pageNumber="21">C. typicus</emphasis>
|
||
</taxonomicName>
|
||
from the Caribbean Sea in the form of the adult major chela, with the fingers long, slender and distinctly curved.
|
||
<taxonomicName id="BEC231A6FFB7FFEFFBE7FD2DFA9CFCAD" box="[1050,1361,764,789]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="gemmatus" status="sp. nov.">
|
||
<emphasis id="4BB69637FFB7FFEFFBE7FD2DFA9CFCAD" box="[1050,1361,764,789]" italics="true" pageId="20" pageNumber="21">Chasmocarcinus gemmatus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="50852B4CFFB7FFEFFAA7FD2DFA56FCAC" box="[1370,1435,764,789]" pageId="20" pageNumber="21" rank="species">
|
||
<emphasis id="4BB69637FFB7FFEFFAA7FD2DFA56FCAC" bold="true" box="[1370,1435,764,789]" pageId="20" pageNumber="21">n. sp.</emphasis>
|
||
</taxonomicNameLabel>
|
||
nevertheless differs in having the carapace proportionately broader (
|
||
<figureCitation id="E1F956A0FFB7FFEFFC6EFCCEFC18FC81" box="[915,981,799,824]" captionStart="FIGURE 3" captionStartId="18.[151,250,1437,1459]" captionTargetBox="[151,1436,177,1420]" captionTargetId="figure@18.[151,1436,177,1420]" captionTargetPageId="18" captionText="FIGURE 3. Overall dorsal view of species of Chasmocarcinus. A, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); B, C. chacei, Gulf of Mexico: female 7.8 × 9.5 mm (USNM 61489); C, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); D, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); E, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); F, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 a)." httpUri="https://zenodo.org/record/272649/files/figure.png" pageId="20" pageNumber="21">Fig. 3</figureCitation>
|
||
F) (carapace narrower in
|
||
<taxonomicName id="BEC231A6FFB7FFEFFB0CFCF1FAACFC81" box="[1265,1377,800,824]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFB0CFCF1FAACFC81" box="[1265,1377,800,824]" italics="true" pageId="20" pageNumber="21">C. typicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<figureCitation id="E1F956A0FFB7FFEFFA8DFCCEFF68FCE5" captionStart="FIGURE 2" captionStartId="14.[151,250,1754,1776]" captionTargetBox="[151,1436,409,1733]" captionTargetId="figure@14.[151,1436,409,1733]" captionTargetPageId="14" captionText="FIGURE 2. Overall dorsal view of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B, C. typicus, Trinidad: paratype male 4.1 × 4.7 mm (USNM 6901); C, C. typicus, Brazil: male 4.0 × 5.1 mm (MCZ CRU- 10993, holotype of C. rathbuni); D, C. typicus, Brazil: female 8.6 × 10.5 mm (ZRC 2015.211); E, C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); F, C. arcuatus, Brazil: female 4.4 × 6.2 mm (ZRC 2015.222); G, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); H, C. arcuatus, Brazil: ovigerous female 4.6 × 6.1 mm (ZRC 2015.220)." httpUri="https://zenodo.org/record/272648/files/figure.png" pageId="20" pageNumber="21">Fig. 2</figureCitation>
|
||
A–D); proportionately shorter ambulatory legs (
|
||
<figureCitation id="E1F956A0FFB7FFEFFD34FC95FCC1FCE5" box="[713,780,836,861]" captionStart="FIGURE 3" captionStartId="18.[151,250,1437,1459]" captionTargetBox="[151,1436,177,1420]" captionTargetId="figure@18.[151,1436,177,1420]" captionTargetPageId="18" captionText="FIGURE 3. Overall dorsal view of species of Chasmocarcinus. A, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); B, C. chacei, Gulf of Mexico: female 7.8 × 9.5 mm (USNM 61489); C, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); D, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); E, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); F, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype male 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 a)." httpUri="https://zenodo.org/record/272649/files/figure.png" pageId="20" pageNumber="21">Fig. 3</figureCitation>
|
||
F) (proportionately shorter in
|
||
<taxonomicName id="BEC231A6FFB7FFEFFB99FC94FB18FCE5" box="[1124,1237,837,860]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFB99FC94FB18FCE5" box="[1124,1237,837,860]" italics="true" pageId="20" pageNumber="21">C. typicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<figureCitation id="E1F956A0FFB7FFEFFB1BFC95FAE4FCE5" box="[1254,1321,836,861]" captionStart="FIGURE 2" captionStartId="14.[151,250,1754,1776]" captionTargetBox="[151,1436,409,1733]" captionTargetId="figure@14.[151,1436,409,1733]" captionTargetPageId="14" captionText="FIGURE 2. Overall dorsal view of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B, C. typicus, Trinidad: paratype male 4.1 × 4.7 mm (USNM 6901); C, C. typicus, Brazil: male 4.0 × 5.1 mm (MCZ CRU- 10993, holotype of C. rathbuni); D, C. typicus, Brazil: female 8.6 × 10.5 mm (ZRC 2015.211); E, C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); F, C. arcuatus, Brazil: female 4.4 × 6.2 mm (ZRC 2015.222); G, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); H, C. arcuatus, Brazil: ovigerous female 4.6 × 6.1 mm (ZRC 2015.220)." httpUri="https://zenodo.org/record/272648/files/figure.png" pageId="20" pageNumber="21">Fig. 2</figureCitation>
|
||
A–D); the antennular articles are relatively shorter (
|
||
<figureCitation id="E1F956A0FFB7FFEFFD9CFCB6FD7CFC39" box="[609,689,871,896]" captionStart="FIGURE 21" captionStartId="94.[151,250,1835,1857]" captionTargetBox="[151,1436,195,1813]" captionTargetId="figure@94.[151,1436,195,1813]" captionTargetPageId="94" captionText="FIGURE 21. Frontal view of cephalothorax of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); C, D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype female 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 c)." httpUri="https://zenodo.org/record/272667/files/figure.png" pageId="20" pageNumber="21">Fig. 21</figureCitation>
|
||
G) (usually distinctly longer in
|
||
<taxonomicName id="BEC231A6FFB7FFEFFBF2FCB9FBB3FC39" box="[1039,1150,872,896]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFBF2FCB9FBB3FC39" box="[1039,1150,872,896]" italics="true" pageId="20" pageNumber="21">C. typicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<figureCitation id="E1F956A0FFB7FFEFFB71FCB6FB11FC39" box="[1164,1244,871,896]" captionStart="FIGURE 21" captionStartId="94.[151,250,1835,1857]" captionTargetBox="[151,1436,195,1813]" captionTargetId="figure@94.[151,1436,195,1813]" captionTargetPageId="94" captionText="FIGURE 21. Frontal view of cephalothorax of species of Chasmocarcinus. A, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); B C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); C, D, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); E, C. chacei, Gulf of Mexico: male 6.6 × 8.0 mm (USNM 61489); F, C. cylindricus, Puerto Rico: neotype female 4.6 × 6.1 mm (USNM 23765); G, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205); H, C. hirsutipes, Brazil: holotype female 6.6 × 7.0 mm (after Coelho & Coelho 1998: fig. 5 c)." httpUri="https://zenodo.org/record/272667/files/figure.png" pageId="20" pageNumber="21">Fig. 21</figureCitation>
|
||
A); and the distal part of the G1 is more sharply tapering and less flared (
|
||
<figureCitation id="E1F956A0FFB7FFEFFCF7FC5DFC96FC1C" box="[778,859,908,933]" captionStart="FIGURE 64" captionStartId="137.[151,250,1869,1891]" captionTargetBox="[174,1364,199,1841]" captionTargetId="figure@137.[151,1436,193,1847]" captionTargetPageId="137" captionText="FIGURE 64. Gonopods and epistomes of species of Chasmocarcinus. A ‒ E, C. cylindricus, Jamaica: male 3.6 × 4.9 mm (USNM 42942); F, C. cylindricus, Puerto Rico: female 6.9 × 9.2 mm (USNM 24551); G ‒ I, C. gemmatus n. sp., Costa Rica: male 7.7 × 11.6 mm (SIO C 1205). A, dorsal view of right G 1; B, ventral view of right G 1; C, ventral view of distal part of distal part of right G 1; D, right G 2; E, F, posterior margin of epistome; G, ventral view of left G 1; H, dorsal view of left G 1; I, left G 2. Scales: A, B, D = 0.25 mm; E ‒ I = 0.5 mm; C = 0.05 mm." httpUri="https://zenodo.org/record/272710/files/figure.png" pageId="20" pageNumber="21">Fig. 64</figureCitation>
|
||
G, H) (distal part of G1 distinctly more flared in
|
||
<taxonomicName id="BEC231A6FFB7FFEFFA7FFC5CFF2BFC71" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFA7FFC5CFF2BFC71" italics="true" pageId="20" pageNumber="21">C. typicus</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<figureCitation id="E1F956A0FFB7FFEFFF09FC7EFE89FC71" box="[244,324,943,968]" captionStart="FIGURE 63" captionStartId="136.[151,250,1891,1913]" captionTargetBox="[186,1405,294,1877]" captionTargetId="figure@136.[176,1414,283,1877]" captionTargetPageId="136" captionText="FIGURE 63. Gonopods and ambulatory dactylus of species of Chasmocarcinus. A ‒ C, C. typicus, Trinidad: holotype male 7.8 × 8.7 mm (USNM 6901); D ‒ F, C. arcuatus, Brazil: male 5.7 × 7.7 mm (ZRC 2015.221); G ‒ J, C. arcuatus, Brazil: male 3.7 × 5.1 mm (ZRC 2015.220); K ‒ M, C. chacei, Gulf of Mexico: paratype male 4.5 × 6.7 mm (USNM 228456, after Felder & Rabalais 1986: fig. 3 e, g, h). A, D, G, ventral view of left G 1; B, E, H, dorsal view of left G 1; I, ventral view of tip of left G 1; K, ventral view of right G 1 (laterally transposed); C, F, J, L, left G 2; M, tip of P 5. Scales: A ‒ H, J ‒ M = 0.5 mm; I = 0.1 mm." httpUri="https://zenodo.org/record/272709/files/figure.png" pageId="20" pageNumber="21">Fig. 63</figureCitation>
|
||
A, B).
|
||
<taxonomicName id="BEC231A6FFB7FFEFFE73FC7EFD0CFC71" box="[398,705,943,968]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="gemmatus" status="sp. nov.">
|
||
<emphasis id="4BB69637FFB7FFEFFE73FC7EFD0CFC71" box="[398,705,943,968]" italics="true" pageId="20" pageNumber="21">Chasmocarcinus gemmatus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="50852B4CFFB7FFEFFD34FC7EFCC5FC71" box="[713,776,943,968]" pageId="20" pageNumber="21" rank="species">
|
||
<emphasis id="4BB69637FFB7FFEFFD34FC7EFCC5FC71" bold="true" box="[713,776,943,968]" pageId="20" pageNumber="21">n. sp.</emphasis>
|
||
</taxonomicNameLabel>
|
||
thus appears to be the
|
||
<collectingRegion id="BB0684C7FFB7FFEFFBFBFC61FB97FC7E" box="[1030,1114,944,967]" country="Fiji" name="Eastern" pageId="20" pageNumber="21">Eastern</collectingRegion>
|
||
Pacific analog of
|
||
<taxonomicName id="BEC231A6FFB7FFEFFAD8FC61FA59FC71" box="[1317,1428,944,968]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="typicus">
|
||
<emphasis id="4BB69637FFB7FFEFFAD8FC61FA59FC71" box="[1317,1428,944,968]" italics="true" pageId="20" pageNumber="21">C. typicus</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="BEC231A6FFB7FFEFFF6AFC05FE00FC55" box="[151,461,980,1005]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="gemmatus" status="sp. nov.">
|
||
<emphasis id="4BB69637FFB7FFEFFF6AFC05FE00FC55" box="[151,461,980,1005]" italics="true" pageId="20" pageNumber="21">Chasmocarcinus gemmatus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="50852B4CFFB7FFEFFE28FC05FDDAFC54" box="[469,535,980,1005]" pageId="20" pageNumber="21" rank="species">
|
||
<emphasis id="4BB69637FFB7FFEFFE28FC05FDDAFC54" bold="true" box="[469,535,980,1005]" pageId="20" pageNumber="21">n. sp.</emphasis>
|
||
</taxonomicNameLabel>
|
||
can easily be separated from its
|
||
<collectingRegion id="BB0684C7FFB7FFEFFC6EFC04FC2AFC55" box="[915,999,981,1004]" country="Fiji" name="Eastern" pageId="20" pageNumber="21">Eastern</collectingRegion>
|
||
Pacific congeners (notably
|
||
<taxonomicName id="BEC231A6FFB7FFEFFADAFC04FA58FC54" box="[1319,1429,980,1005]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="latipes">
|
||
<emphasis id="4BB69637FFB7FFEFFADAFC04FA58FC54" box="[1319,1429,980,1005]" italics="true" pageId="20" pageNumber="21">C. latipes</emphasis>
|
||
</taxonomicName>
|
||
, which it has been found together in Golfo de Nicoya,
|
||
<collectingCountry id="01D50AB5FFB7FFEFFCE4FC29FC55FBA9" box="[793,920,1015,1040]" name="Costa Rica" pageId="20" pageNumber="21">
|
||
<collectingRegion id="BB0684C7FFB7FFEFFCE4FC29FC94FBA9" box="[793,857,1016,1040]" country="New Zealand" name="West Coast" pageId="20" pageNumber="21">Costa</collectingRegion>
|
||
Rica
|
||
</collectingCountry>
|
||
) in having a more trapezoidal carapace, the pterygostomial region being distinct and visible from dorsal view (lower and less swollen in the other species), absence of a spur on P5 (present, for example, in
|
||
<taxonomicName id="BEC231A6FFB7FFEFFD47FB91FCEEFBE1" box="[698,803,1087,1112]" class="Malacostraca" family="Chasmocarcinidae" genus="Chasmocarcinus" kingdom="Animalia" order="Decapoda" pageId="20" pageNumber="21" phylum="Arthropoda" rank="species" species="chacei">
|
||
<emphasis id="4BB69637FFB7FFEFFD47FB91FCEEFBE1" box="[698,803,1087,1112]" italics="true" pageId="20" pageNumber="21">C. chacei</emphasis>
|
||
</taxonomicName>
|
||
), and the dilated median part of the G1 with the tip more flared (evening tapering in the other species with no obvious flare at the tip).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="31D819AEFFB7FFEFFF3AFB56FCFBFB26" box="[199,822,1159,1184]" pageId="20" pageNumber="21" type="distribution">
|
||
<paragraph id="797D4A25FFB7FFEFFF3AFB56FCFBFB26" blockId="20.[151,1436,188,1184]" box="[199,822,1159,1184]" pageId="20" pageNumber="21">
|
||
<emphasis id="4BB69637FFB7FFEFFF3AFB56FE94FB19" bold="true" box="[199,345,1159,1184]" pageId="20" pageNumber="21">Distribution</emphasis>
|
||
. Pacific coast of
|
||
<collectingCountry id="01D50AB5FFB7FFEFFDE6FB59FD55FB19" box="[539,664,1159,1184]" name="Costa Rica" pageId="20" pageNumber="21">
|
||
<collectingRegion id="BB0684C7FFB7FFEFFDE6FB59FD96FB19" box="[539,603,1160,1184]" country="New Zealand" name="West Coast" pageId="20" pageNumber="21">Costa</collectingRegion>
|
||
Rica
|
||
</collectingCountry>
|
||
. Depth:
|
||
<specimenCount id="6FC481ACFFB7FFEFFD0BFB56FCFBFB26" box="[758,822,1159,1184]" pageId="20" pageNumber="21" type="generic">
|
||
<quantity id="BE3AE7C0FFB7FFEFFD0BFB56FCFFFB26" box="[758,818,1159,1184]" metricMagnitude="1" metricUnit="m" metricValue="8.6" pageId="20" pageNumber="21" unit="m" value="86.0">86 m</quantity>
|
||
.
|
||
</specimenCount>
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |