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<document id="946C0F3E07C9738434D828277C9E04F3" ID-DOI="10.11646/zootaxa.3718.4.5" ID-GBIF-Dataset="5cd91ec3-adae-4be8-9c77-6f0bbd794d33" ID-ISSN="1175-5326" ID-Zenodo-Dep="221762" ID-ZooBank="50BBC8C0-C684-4738-8E0D-795805CC0BEF" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460686546846" checkinUser="plazi" docAuthor="Ng, Peter K. L. &amp; Forges, Bertrand Richer De" docDate="2013" docId="038A87DF2B623222FF05FB78FE03F060" docLanguage="en" docName="zt03718p366.pdf" docOrigin="Zootaxa 3718 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Rochinia A. Milne-Edwards 1875" docType="treatment" docVersion="8" lastPageNumber="363" masterDocId="FFB3FFA72B673224FF92FFA1FF8FF41D" masterDocTitle="Samadinia longispina, a new genus and species of deep-sea spider crab from the western Pacific, and a new species of Rochinia A. Milne-Edwards, 1875, from Papua New Guinea (Crustacea: Brachyura: Majoidea: Epialtidae)" masterLastPageNumber="366" masterPageNumber="357" pageNumber="362" updateTime="1698351294046" updateUser="plazi">
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<mods:title id="746AA0156A6252C83A613D24B8FB3987">Samadinia longispina, a new genus and species of deep-sea spider crab from the western Pacific, and a new species of Rochinia A. Milne-Edwards, 1875, from Papua New Guinea (Crustacea: Brachyura: Majoidea: Epialtidae)</mods:title>
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<mods:namePart id="421DFD577D9FD82F255CC87B62AC43A9">Ng, Peter K. L.</mods:namePart>
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<mods:namePart id="9754A1EF12BE02BD2BF1F57B95FB779E">Forges, Bertrand Richer De</mods:namePart>
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<treatment id="038A87DF2B623222FF05FB78FE03F060" ID-DOI="http://doi.org/10.5281/zenodo.6148798" ID-GBIF-Taxon="119580395" ID-Zenodo-Dep="6148798" LSID="urn:lsid:plazi:treatment:038A87DF2B623222FF05FB78FE03F060" httpUri="http://treatment.plazi.org/id/038A87DF2B623222FF05FB78FE03F060" lastPageId="6" lastPageNumber="363" pageId="5" pageNumber="362">
<subSubSection id="C33965422B623221FF05FB78FD1AF0EE" box="[151,661,1240,1267]" pageId="5" pageNumber="362" type="nomenclature">
<paragraph id="8B9C36C92B623221FF05FB78FD1AF0EE" blockId="5.[151,661,1240,1267]" box="[151,661,1240,1267]" pageId="5" pageNumber="362">
<heading id="D0D481A52B623221FF05FB78FD1AF0EE" bold="true" box="[151,661,1240,1267]" fontSize="11" level="1" pageId="5" pageNumber="362" reason="1">
<emphasis id="B957EADB2B623221FF05FB78FD1AF0EE" bold="true" box="[151,661,1240,1267]" pageId="5" pageNumber="362">
Genus
<taxonomicName id="4C234D4A2B623221FF7CFB79FD1AF0EE" ID-CoL="7PXSD" authority="A. Milne-Edwards, 1875" authorityName="A. Milne-Edwards" authorityYear="1875" box="[238,661,1240,1267]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FF7CFB79FED2F0EF" bold="true" box="[238,349,1240,1266]" italics="true" pageId="5" pageNumber="362">Rochinia</emphasis>
A. Milne-Edwards, 1875
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33965422B623221FF05FABEFB10F128" box="[151,1183,1311,1333]" pageId="5" pageNumber="362" type="materials_examined">
<paragraph id="8B9C36C92B623221FF05FABEFB10F128" blockId="5.[151,1183,1311,1333]" box="[151,1183,1311,1333]" pageId="5" pageNumber="362">
<emphasis id="B957EADB2B623221FF05FABEFE94F128" bold="true" box="[151,283,1311,1333]" pageId="5" pageNumber="362">
<typeStatus id="5498886B2B623221FF05FABEFF45F128" box="[151,202,1311,1333]" pageId="5" pageNumber="362">Type</typeStatus>
species
</emphasis>
.
<taxonomicName id="4C234D4A2B623221FEBBFABEFD7AF128" authority="A. Milne-Edwards, 1875" authorityName="A. Milne-Edwards" authorityYear="1875" box="[297,757,1311,1333]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="gracilipes">
<emphasis id="B957EADB2B623221FEBBFABEFE7FF128" box="[297,496,1311,1333]" italics="true" pageId="5" pageNumber="362">Rochinia gracilipes</emphasis>
A. Milne-Edwards, 1875
</taxonomicName>
, by monotypy. Gender of genus feminine.
</paragraph>
</subSubSection>
<subSubSection id="C33965422B623222FF05FAC3FE03F060" lastPageId="6" lastPageNumber="363" pageId="5" pageNumber="362" type="discussion">
<paragraph id="8B9C36C92B623221FF05FAC3FC70F287" blockId="5.[151,1436,1378,2015]" pageId="5" pageNumber="362">
<emphasis id="B957EADB2B623221FF05FAC3FE84F166" bold="true" box="[151,267,1378,1403]" pageId="5" pageNumber="362">Remarks.</emphasis>
<taxonomicName id="4C234D4A2B623221FE83FAC3FEF9F167" box="[273,374,1378,1402]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FE83FAC3FEF9F167" box="[273,374,1378,1402]" italics="true" pageId="5" pageNumber="362">Rochinia</emphasis>
</taxonomicName>
is a large genus, with 38 recognised species from the Atlantic and Indo-West Pacific (modified from Ng
<emphasis id="B957EADB2B623221FE92FA26FEB5F183" box="[256,314,1414,1438]" italics="true" pageId="5" pageNumber="362">et al.</emphasis>
2008; Richer de Forges &amp; Ng 2013). Many authors (e.g., Ng &amp; Richer de Forges 2007; Richer de Forges &amp; Ng 2009a, b, 2013; Richer de Forges &amp; Poore 2008) have argued that the genus is heterogeneous, but splitting it into discrete groups has proved difficult. A precise definition for the genus has also proven to be difficult, with the diagnosis given in Griffin &amp; Tranter (1986: 174) no longer accurate. In the years since, authors have removed
<taxonomicName id="4C234D4A2B623221FEACF9B7FC9BF233" authority="A. Milne-Edwards, 1875" authorityName="A. Milne-Edwards" authorityYear="1875" box="[318,788,1557,1582]" class="Malacostraca" family="Epialtidae" genus="Sphenocarcinus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FEACF9B7FE7FF233" box="[318,496,1558,1582]" italics="true" pageId="5" pageNumber="362">Sphenocarcinus</emphasis>
A. Milne-Edwards, 1875
</taxonomicName>
, and
<taxonomicName id="4C234D4A2B623221FCC3F9B7FB0CF233" authority="Miers, 1885" authorityName="Miers" authorityYear="1885" box="[849,1155,1557,1582]" class="Malacostraca" family="Epialtidae" genus="Oxypleurodon" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FCC3F9B7FC7FF233" box="[849,1008,1558,1582]" italics="true" pageId="5" pageNumber="362">Oxypleurodon</emphasis>
Miers, 1885
</taxonomicName>
, from its synonymy (see Richer de Forges 2009a for discussion); and Sakai (1986) established a new genus,
<taxonomicName id="4C234D4A2B623221FB1DF99BFABEF24C" box="[1167,1329,1594,1617]" class="Malacostraca" family="Epialtidae" genus="Goniopugettia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FB1DF99BFABEF24C" box="[1167,1329,1594,1617]" italics="true" pageId="5" pageNumber="362">Goniopugettia</emphasis>
</taxonomicName>
, for one Japanese species. Richer de Forges &amp; Ng (2009b) also separated two very unusual species,
<taxonomicName id="4C234D4A2B623221FB20F9FEFF57F286" authority="Rathbun, 1916" authorityName="Rathbun" authorityYear="1916" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="nodosa">
<emphasis id="B957EADB2B623221FB20F9FEFAABF26B" box="[1202,1316,1630,1654]" italics="true" pageId="5" pageNumber="362">R. nodosa</emphasis>
(Rathbun, 1916)
</taxonomicName>
and
<taxonomicName id="4C234D4A2B623221FE9CF922FD11F286" authority="Griffin &amp; Tranter, 1986" authorityName="Griffin &amp; Tranter" authorityYear="1986" box="[270,670,1666,1691]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="carinata">
<emphasis id="B957EADB2B623221FE9CF922FE02F287" box="[270,397,1667,1690]" italics="true" pageId="5" pageNumber="362">R. carinata</emphasis>
Griffin &amp; Tranter, 1986
</taxonomicName>
, into a new genus,
<taxonomicName id="4C234D4A2B623221FCE6F923FC77F287" box="[884,1016,1666,1690]" class="Malacostraca" family="Epialtidae" genus="Laubierinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FCE6F923FC77F287" box="[884,1016,1666,1690]" italics="true" pageId="5" pageNumber="362">Laubierinia</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B9C36C92B623222FF55F904FEDBF5CD" blockId="5.[151,1436,1378,2015]" lastBlockId="6.[151,1436,151,1149]" lastPageId="6" lastPageNumber="363" pageId="5" pageNumber="362">
Of the remaining species, several groups of
<taxonomicName id="4C234D4A2B623221FD20F907FC98F2A3" box="[690,791,1702,1726]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B623221FD20F907FC98F2A3" box="[690,791,1702,1726]" italics="true" pageId="5" pageNumber="362">Rochinia</emphasis>
</taxonomicName>
that can be recognised, and they can be briefly diagnosed as follows. Adults of
<taxonomicName id="4C234D4A2B623221FE0EF96BFD8EF2FF" box="[412,513,1738,1762]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="genus" sensu="stricto">
<emphasis id="B957EADB2B623221FE0EF96BFD8EF2FF" box="[412,513,1738,1762]" italics="true" pageId="5" pageNumber="362">Rochinia</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26457A02B623221FD9EF96AFDC3F2FF" box="[524,588,1739,1762]" pageId="5" pageNumber="362" sensu="stricto">s. str.</taxonomicNameLabel>
(
<typeStatus id="5498886B2B623221FDCDF96BFD1EF2FF" box="[607,657,1738,1762]" pageId="5" pageNumber="362">type</typeStatus>
species
<taxonomicName id="4C234D4A2B623221FD69F96AFB31F2FE" authority="A. Milne-Edwards, 1875" authorityName="A. Milne-Edwards" authorityYear="1875" box="[763,1214,1738,1763]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="gracilipes">
<emphasis id="B957EADB2B623221FD69F96AFC00F2FF" box="[763,911,1738,1762]" italics="true" pageId="5" pageNumber="362">R. gracilipes</emphasis>
A. Milne-Edwards, 1875
</taxonomicName>
, and
<taxonomicName id="4C234D4A2B623221FA91F96AFEFFF31B" authority="Thompson, 1873" authorityName="Thompson" authorityYear="1873" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="carpenteri">
<emphasis id="B957EADB2B623221FA91F96AFA14F2FF" box="[1283,1435,1739,1762]" italics="true" pageId="5" pageNumber="362">R. carpenteri</emphasis>
(Thompson, 1873))
</taxonomicName>
have raised and distinct carapace regions, and may be covered by large tubercles or spines with the rest of the surface smooth, the anterior male thoracic sternum is transversely broad and the male abdomen acutely triangular to T-shaped (
<figureCitation id="13182A4C2B623221FD94F894FDC3F353" box="[518,588,1845,1870]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="5" pageNumber="362">Fig. 5</figureCitation>
A, B). A second group has relatively distinct carapace regions, with the surfaces smooth but the lateral branchial spine is low or even absent (e.g.,
<taxonomicName id="4C234D4A2B623221FC6EF8FAFAE9F36F" authority="Doflein, 1904" authorityName="Doflein" authorityYear="1904" box="[1020,1382,1882,1907]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="brevirostris">
<emphasis id="B957EADB2B623221FC6EF8FAFB10F36F" box="[1020,1183,1882,1906]" italics="true" pageId="5" pageNumber="362">R. brevirostris</emphasis>
(Doflein, 1904))
</taxonomicName>
, and these species have a transversely broad male anterior thoracic sternum with a triangular or T-shaped male abdomen (
<figureCitation id="13182A4C2B623221FF0DF803FF6DF3A6" box="[159,226,1954,1979]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="5" pageNumber="362">Fig. 5</figureCitation>
C). A third group contains species that have numerous sharp spines on the prominent carapace regions (e.g.,
<taxonomicName id="4C234D4A2B623221FF05F866FE48F3C2" authority="Miers, 1885" authorityName="Miers" authorityYear="1885" box="[151,455,1990,2015]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="362" phylum="Arthropoda" rank="species" species="pulchra">
<emphasis id="B957EADB2B623221FF05F866FE9EF3C3" box="[151,273,1990,2014]" italics="true" pageId="5" pageNumber="362">R. pulchra</emphasis>
(Miers, 1885))
</taxonomicName>
, and the constituent species have relatively more transversely narrow anterior male thoracic sternum, with sternite 4 anteriorly constricted and their male abdomens are acutely triangular or T-shaped (
<figureCitation id="13182A4C2B613222FF0DFF1DFF6BF4C8" box="[159,228,188,213]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="6" pageNumber="363">Fig. 5</figureCitation>
D). A fourth group of species has prominent lateral branchial spines with some tubercles on the carapace regions but otherwise smooth (e.g.,
<taxonomicName id="4C234D4A2B613222FDBFFF40FCC8F4E5" authority="Takeda, 2001" authorityName="Takeda" authorityYear="2001" box="[557,839,223,248]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="kotakae">
<emphasis id="B957EADB2B613222FDBFFF40FD2BF4E5" box="[557,676,224,248]" italics="true" pageId="6" pageNumber="363">R. kotakae</emphasis>
Takeda, 2001
</taxonomicName>
), and while their male anterior thoracic sternums are transversely narrow with sternite 4 constricted, their male abdomens are acutely triangular (
<figureCitation id="13182A4C2B613222FB0EFEA5FB50F500" box="[1180,1247,260,285]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="6" pageNumber="363">Fig. 5</figureCitation>
E). A fifth group (e.g.,
<taxonomicName id="4C234D4A2B613222FF49FE88FE77F55D" authority="Grant, 1905" authorityName="Grant" authorityYear="1905" box="[219,504,295,320]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="fultoni">
<emphasis id="B957EADB2B613222FF49FE88FEC8F55D" box="[219,327,296,320]" italics="true" pageId="6" pageNumber="363">R. fultoni</emphasis>
(Grant, 1905))
</taxonomicName>
has more elongated carapaces with distinct carapace regions and several sharp tubercles, and the male anterior thoracic sternum is transversely narrow and sternite 4 constricted, the male abdomen being acutely triangular (
<figureCitation id="13182A4C2B613222FDA1FECEFDF5F595" box="[563,634,367,392]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="6" pageNumber="363">Fig. 5</figureCitation>
F). Until all or most of the species are redescribed or re-examined, establishing new genera for each of these groups seems premature, especially because some characters may vary between species.
</paragraph>
<paragraph id="8B9C36C92B613222FF55FE7DFBE5F7D5" blockId="6.[151,1436,151,1149]" pageId="6" pageNumber="363">
<taxonomicName id="4C234D4A2B613222FF55FE7DFE33F5E9" box="[199,444,476,500]" class="Malacostraca" family="Epialtidae" genus="Samadinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="longispina" status="gen. nov.">
<emphasis id="B957EADB2B613222FF55FE7DFE33F5E9" box="[199,444,476,500]" italics="true" pageId="6" pageNumber="363">Samadinia longispina</emphasis>
</taxonomicName>
<emphasis id="B957EADB2B613222FE57FE7DFDECF5E8" bold="true" box="[453,611,476,501]" pageId="6" pageNumber="363">
<taxonomicNameLabel id="A26457A02B613222FE57FE7DFD9AF5E8" box="[453,533,476,501]" pageId="6" pageNumber="363" rank="genus">n. gen.</taxonomicNameLabel>
, n. sp.
</emphasis>
is characterised by having a poorly defined regions of the dorsal surface of the carapace and by being covered with numerous small, rounded granules (
<figureCitation id="13182A4C2B613222FB88FE5EFBEBF605" box="[1050,1124,511,536]" captionStart="FIGURE 1" captionStartId="2.[151,250,1942,1964]" captionTargetBox="[182,1407,193,1922]" captionTargetId="figure@2.[182,1408,193,1924]" captionTargetPageId="2" captionText="FIGURE 1. Samadinia longispina n. gen., n. sp., holotype male (25.3 × 17.9 mm) (MNHN-IU- 2011 - 4190), French Polynesia, south of Society Islands. A, overall habitus; B, lateral view of carapace (lateral branchial spine broken); C, lateral-frontal view showing orbit and position of antennal flagellum." httpUri="https://zenodo.org/record/221763/files/figure.png" pageId="6" pageNumber="363">Figs. 1</figureCitation>
A, 3A) (covered with large spines and/or sharp tubercles in
<taxonomicName id="4C234D4A2B613222FD95FD85FDE3F621" box="[519,620,548,572]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="B957EADB2B613222FD95FD85FDE3F621" box="[519,620,548,572]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26457A02B613222FDE6FD84FD66F620" box="[628,745,548,573]" pageId="6" pageNumber="363" sensu="lato">sensu lato</taxonomicNameLabel>
); the hepatic and lateral branchial spines are long, sharp and directed laterally (
<figureCitation id="13182A4C2B613222FEF0FDE6FE24F67D" box="[354,427,583,608]" captionStart="FIGURE 1" captionStartId="2.[151,250,1942,1964]" captionTargetBox="[182,1407,193,1922]" captionTargetId="figure@2.[182,1408,193,1924]" captionTargetPageId="2" captionText="FIGURE 1. Samadinia longispina n. gen., n. sp., holotype male (25.3 × 17.9 mm) (MNHN-IU- 2011 - 4190), French Polynesia, south of Society Islands. A, overall habitus; B, lateral view of carapace (lateral branchial spine broken); C, lateral-frontal view showing orbit and position of antennal flagellum." httpUri="https://zenodo.org/record/221763/files/figure.png" pageId="6" pageNumber="363">Figs. 1</figureCitation>
A, 3A) (carapace regions also with long spines in
<taxonomicName id="4C234D4A2B613222FC48FDE9FBB0F67D" box="[986,1087,584,608]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="B957EADB2B613222FC48FDE9FBB0F67D" box="[986,1087,584,608]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26457A02B613222FBD4FDE9FB3AF67D" box="[1094,1205,583,608]" pageId="6" pageNumber="363" sensu="lato">sensu lato</taxonomicNameLabel>
when this spines are long); the male anterior thoracic sternum is transversely conspicuously narrow, with sternite 4 strongly constricted anteriorly, with the anterolateral margins almost parallel and the median lateral margins strongly convex, forming a distinct structure (
<figureCitation id="13182A4C2B613222FEF6FD15FE27F6D1" box="[356,424,692,717]" captionStart="FIGURE 2" captionStartId="3.[151,250,1349,1371]" captionTargetBox="[151,1436,193,1327]" captionTargetId="figure@3.[151,1436,193,1327]" captionTargetPageId="3" captionText="FIGURE 2. Samadinia longispina n. gen., n. sp., holotype male (25.3 × 17.9 mm) (MNHN-IU- 2011 - 4190), French Polynesia. A, anterior thoracic sternum and abdomen; B, antennules, antennae and epistome; C, left third maxilliped; D, left chela." httpUri="https://zenodo.org/record/221764/files/figure.png" pageId="6" pageNumber="363">Fig. 2</figureCitation>
A) (relatively more constricted, with the lateral margins of the constricted portion almost parallel in
<taxonomicName id="4C234D4A2B613222FE88FD79FE1DF6ED" box="[282,402,728,752]" class="Malacostraca" family="Epialtidae" genus="Samadinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus" status="gen. nov.">
<emphasis id="B957EADB2B613222FE88FD79FE1DF6ED" box="[282,402,728,752]" italics="true" pageId="6" pageNumber="363">Samadinia</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26457A02B613222FE0CFD76FE7DF6ED" box="[414,498,727,752]" pageId="6" pageNumber="363" rank="genus">
<emphasis id="B957EADB2B613222FE0CFD76FE7DF6ED" bold="true" box="[414,498,727,752]" pageId="6" pageNumber="363">n. gen.</emphasis>
</taxonomicNameLabel>
[
<figureCitation id="13182A4C2B613222FD94FD76FDDFF6ED" box="[518,592,727,752]" captionStart="FIGURE 2" captionStartId="3.[151,250,1349,1371]" captionTargetBox="[151,1436,193,1327]" captionTargetId="figure@3.[151,1436,193,1327]" captionTargetPageId="3" captionText="FIGURE 2. Samadinia longispina n. gen., n. sp., holotype male (25.3 × 17.9 mm) (MNHN-IU- 2011 - 4190), French Polynesia. A, anterior thoracic sternum and abdomen; B, antennules, antennae and epistome; C, left third maxilliped; D, left chela." httpUri="https://zenodo.org/record/221764/files/figure.png" pageId="6" pageNumber="363">Fig. 2</figureCitation>
A] but diverging in other
<taxonomicName id="4C234D4A2B613222FC19FD79FC7FF6ED" box="[907,1008,728,752]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B613222FC19FD79FC7FF6ED" box="[907,1008,728,752]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
species [
<figureCitation id="13182A4C2B613222FBF3FD76FB25F6ED" box="[1121,1194,727,752]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="6" pageNumber="363">Fig. 5</figureCitation>
D?F]); and the male abdomen is broadly triangular, with somites 3 and 4 broadly trapezoidal and somites 5 and 6 subrectangular (
<figureCitation id="13182A4C2B613222FAFDFD5DFF2AF725" captionStart="FIGURE 2" captionStartId="3.[151,250,1349,1371]" captionTargetBox="[151,1436,193,1327]" captionTargetId="figure@3.[151,1436,193,1327]" captionTargetPageId="3" captionText="FIGURE 2. Samadinia longispina n. gen., n. sp., holotype male (25.3 × 17.9 mm) (MNHN-IU- 2011 - 4190), French Polynesia. A, anterior thoracic sternum and abdomen; B, antennules, antennae and epistome; C, left third maxilliped; D, left chela." httpUri="https://zenodo.org/record/221764/files/figure.png" pageId="6" pageNumber="363">Fig. 2</figureCitation>
A) (abdomen acutely triangular to T-shaped in
<taxonomicName id="4C234D4A2B613222FD52FC81FCAAF725" box="[704,805,800,824]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B613222FD52FC81FCAAF725" box="[704,805,800,824]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
, with somites 3?6 trapezoidal, with the condition most similar to
<taxonomicName id="4C234D4A2B613222FE98FCE4FE24F741" box="[266,427,836,860]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="brevirostris">
<emphasis id="B957EADB2B613222FE98FCE4FE24F741" box="[266,427,836,860]" italics="true" pageId="6" pageNumber="363">R. brevirostris</emphasis>
</taxonomicName>
[
<figureCitation id="13182A4C2B613222FE2BFCE5FE72F740" box="[441,509,836,861]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="6" pageNumber="363">Fig. 5</figureCitation>
C] but still relatively broader). This combination of characters is unique. No other species of
<taxonomicName id="4C234D4A2B613222FE9DFCC9FEFBF79D" box="[271,372,872,896]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="B957EADB2B613222FE9DFCC9FEFBF79D" box="[271,372,872,896]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26457A02B613222FEEEFCC9FE63F79D" box="[380,492,871,896]" pageId="6" pageNumber="363" sensu="lato">sensu lato</taxonomicNameLabel>
has the kind of dorsal carapace surface and very broad male abdomen present in
<taxonomicName id="4C234D4A2B613222FA15FCC9FE82F7B9" class="Malacostraca" family="Epialtidae" genus="Samadinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="longispina" status="gen. nov.">
<emphasis id="B957EADB2B613222FA15FCC9FE82F7B9" italics="true" pageId="6" pageNumber="363">S. longispina</emphasis>
</taxonomicName>
<emphasis id="B957EADB2B613222FE85FC2DFE34F7B8" bold="true" box="[279,443,908,933]" pageId="6" pageNumber="363">
<taxonomicNameLabel id="A26457A02B613222FE85FC2DFEE6F7B8" box="[279,361,908,933]" pageId="6" pageNumber="363" rank="genus">n. gen.</taxonomicNameLabel>
, n. sp.
</emphasis>
As such, rather than placing it in
<taxonomicName id="4C234D4A2B613222FCDCFC2DFC3CF7B9" box="[846,947,908,932]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B613222FCDCFC2DFC3CF7B9" box="[846,947,908,932]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
and stretching the generic definition even further, it was felt that it was better to establish a separate genus for
<taxonomicName id="4C234D4A2B613222FC00FC11FBABF7D5" box="[914,1060,944,968]" class="Malacostraca" family="Epialtidae" genus="Samadinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="longispina" status="sp. nov.">
<emphasis id="B957EADB2B613222FC00FC11FBABF7D5" box="[914,1060,944,968]" italics="true" pageId="6" pageNumber="363">S. longispina</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26457A02B613222FBB9FC0EFBE5F7D5" box="[1067,1130,943,968]" pageId="6" pageNumber="363" rank="species">
<emphasis id="B957EADB2B613222FBB9FC0EFBE5F7D5" bold="true" box="[1067,1130,943,968]" pageId="6" pageNumber="363">n. sp.</emphasis>
</taxonomicNameLabel>
</paragraph>
<paragraph id="8B9C36C92B613222FF55FC75FE03F060" blockId="6.[151,1436,151,1149]" pageId="6" pageNumber="363">
The new species of
<taxonomicName id="4C234D4A2B613222FE3AFC75FD82F7F1" box="[424,525,980,1004]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B613222FE3AFC75FD82F7F1" box="[424,525,980,1004]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
described here,
<taxonomicName id="4C234D4A2B613222FD54FC74FCD7F7F1" box="[710,856,980,1004]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="granulosa" status="sp. nov.">
<emphasis id="B957EADB2B613222FD54FC74FCD7F7F1" box="[710,856,980,1004]" italics="true" pageId="6" pageNumber="363">R. granulosa</emphasis>
</taxonomicName>
<emphasis id="B957EADB2B613222FCCDFC75FC29F7F0" bold="true" box="[863,934,980,1005]" pageId="6" pageNumber="363">
<taxonomicNameLabel id="A26457A02B613222FCCDFC75FC2EF7F0" box="[863,929,980,1005]" pageId="6" pageNumber="363" rank="species">n. sp.</taxonomicNameLabel>
,
</emphasis>
also possesses a carapace that has relatively large granules covering the dorsal regions. The structure of these granules, however, is quite different, being relatively large and sub-fungiform rather than small and rounded. It also has a relatively broader male anterior thoracic sternum with a triangular male abdomen (
<figureCitation id="13182A4C2B613222FD4FFB9EFCB6F045" box="[733,825,1087,1112]" captionStart="FIGURE 3. A, E" captionStartId="4.[151,250,1769,1791]" captionTargetBox="[151,1436,337,1746]" captionTargetId="figure@4.[151,1436,337,1748]" captionTargetPageId="4" captionText="FIGURE 3. A, E, Samadinia longispina n. gen., n. sp., female (12.9 × 8.9 mm) (MNHN-IU- 2013 - 1678), New Caledonia; B- D, Rochinia granulosa n. sp., B, F, holotype female (9.7 × 6.7 mm) (MNHN-IU- 2011 - 2944 a), Papua New Guinea; C, D, paratype male (6.4 × 4.7 mm) (MNHN-IU- 2011 - 2944 b), Papua New Guinea. A-C, overall habitus; D, male anterior thoracic sternum and abdomen; E, F, female sterno-abdominal cavities and vulvae." httpUri="https://zenodo.org/record/221765/files/figure.png" pageId="6" pageNumber="363">Fig. 3D</figureCitation>
), more similar to that of
<taxonomicName id="4C234D4A2B613222FBCFFBE1FB4CF045" box="[1117,1219,1088,1112]" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="genus">
<emphasis id="B957EADB2B613222FBCFFBE1FB4CF045" box="[1117,1219,1088,1112]" italics="true" pageId="6" pageNumber="363">Rochinia</emphasis>
</taxonomicName>
species such as
<taxonomicName id="4C234D4A2B613222FA16FBE0FE97F061" class="Malacostraca" family="Epialtidae" genus="Rochinia" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="363" phylum="Arthropoda" rank="species" species="brevirostris">
<emphasis id="B957EADB2B613222FA16FBE0FE97F061" italics="true" pageId="6" pageNumber="363">R. brevirostris</emphasis>
</taxonomicName>
(
<figureCitation id="13182A4C2B613222FEB5FBC5FEE5F060" box="[295,362,1124,1149]" captionStart="FIGURE 5" captionStartId="7.[151,250,1823,1845]" captionTargetBox="[182,1399,193,1793]" captionTargetId="figure@7.[182,1399,193,1793]" captionTargetPageId="7" captionText="FIGURE 5. Anterior thoracic sternums and abdomens of Rochinia species. A, R. gracilipes A. Milne-Edwards, 1875, male (15.8 × 11.2 mm) (USNM 1150573), Mar del Plata at breakwater, Buenos Aires, Argentina; B, R. carpenteri (Thompson, 1873), male (41.7 × 33.9 mm) (NHM 1983.449), England; C, R. brevirostris (Doflein, 1904), male (15.8 × 11.4 mm) (ZRC 2011.1047), stn AT 89, 14 ° 59.74 ' S 166 ° 55.3 ' E, Vanuatu; D, R. pulchra (Miers, 1885), male (17.6 × 15.4 mm) (ZRC 2011.1043), stn CC 2746, 15 ° 58.78 ' N 121 ° 46.44 ' E, Luzon, Philippines; E, R. kotakae Takeda, 2001, male (13.4 × 17.2 mm) (ZRC 2011.1051), stn CP 2680, 14 ° 53.32 ' N 123 ° 14.40 ' E, Luzon, Philippines; F, R. fultoni, male (13.7 × 10.4 mm) (ZRC 2011.1057), stn CP 2832, 10 ° 44.54 ' S 162 ° 19.65 ' E, Solomon Islands." httpUri="https://zenodo.org/record/221767/files/figure.png" pageId="6" pageNumber="363">Fig. 5</figureCitation>
C).
</paragraph>
</subSubSection>
</treatment>
</document>