<documentid="FA00D594942D26C29C56C9FC0EB3C8E8"ID-DOI="10.5281/zenodo.13245390"ID-ISSN="2345-7600"ID-Zenodo-Dep="13245390"IM.bibliography_approvedBy="felipe"IM.illustrations_approvedBy="felipe"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.taxonomicNames_approvedBy="felipe"IM.treatments_approvedBy="felipe"checkinTime="1722970644484"checkinUser="felipe"docAuthor="Cai, Kristina Zitzler Yixiong"docDate="2006"docId="0D51D94CFFFC1D08CBB1FA6A3A6ACCEB"docLanguage="en"docName="RafflesBZool.54.2.271-276.pdf"docOrigin="Raffles Bulletin of Zoology 54 (2)"docStyle="DocumentStyle:C6443723295B2E4C6F22B9B23F08089C.5:RafflesBZool.2006-2013.journal_article"docStyleId="C6443723295B2E4C6F22B9B23F08089C"docStyleName="RafflesBZool.2006-2013.journal_article"docStyleVersion="5"docTitle="Caridina spongicola Cai, 2006, new species"docType="treatment"docVersion="2"lastPageNumber="276"masterDocId="F168A134FFFC1D0DC878FFCE3B5FC873"masterDocTitle="Caridina Spongicola, New Species, A Freshwater Shrimp (Crustacea: Decapoda: Atyidae) From The Ancient Malili Lake System Of Sulawesi, Indonesia"masterLastPageNumber="276"masterPageNumber="271"pageNumber="271"updateTime="1722976777053"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0">
<mods:titleid="10D30A047384B436DB2DE31E338947A0">Caridina Spongicola, New Species, A Freshwater Shrimp (Crustacea: Decapoda: Atyidae) From The Ancient Malili Lake System Of Sulawesi, Indonesia</mods:title>
<figureCitationid="1DC374DFFFFC1D0DCC29FA0A3FEDCDA8"box="[1105,1202,1476,1499]"captionStart-0="Fig"captionStart-1="Fig"captionStart-2="Fig"captionStartId-0="1.[113,148,2035,2056]"captionStartId-1="2.[136,171,2008,2029]"captionStartId-2="3.[113,148,2006,2027]"captionTargetBox-0="[109,1441,211,1962]"captionTargetBox-1="[146,1466,279,1911]"captionTargetBox-2="[186,1368,203,1950]"captionTargetId-0="figure-61@1.[89,1465,192,1990]"captionTargetId-1="figure-97@2.[122,1490,239,1949]"captionTargetId-2="figure-89@3.[158,1409,170,2013]"captionTargetPageId-0="1"captionTargetPageId-1="2"captionTargetPageId-2="3"captionText-0="Fig. 1. A, Malili Lake system of Sulawesi: Caridina spongicola, new species, collecting sites in the outlet bay of Lake Towuti; B, rostrum variation within a population of C. spongicola (ZMB 29027) (scale bar: 1 mm); C, Caridina spongicola in its natural habitat; D, colour pattern of C. spongicola (ZMB)."captionText-1="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."captionText-2="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi-0="http://doi.org/10.5281/zenodo.13245392"figureDoi-1="http://doi.org/10.5281/zenodo.13245394"figureDoi-2="http://doi.org/10.5281/zenodo.13245396"httpUri-0="https://zenodo.org/record/13245392/files/figure.png"httpUri-1="https://zenodo.org/record/13245394/files/figure.png"httpUri-2="https://zenodo.org/record/13245396/files/figure.png"pageId="0"pageNumber="271">Figs. 1-3</figureCitation>
<materialsCitationid="35906207FFFC1D0DCC58F9CD38C3CEFF"collectingDate="2004-07-29"collectionCode="MZB, T"collectorName="von Rintelen & K. Zitzler"country="Indonesia"latitude="-2.7876835"location="Cape Tokaluku"longLatPrecision="9"longitude="121.38617"municipality="Lake Towuti"pageId="0"pageNumber="271"specimenCount="1"stateProvince="Sulawesi Selatan"typeStatus="holotype">
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<materialsCitationid="35906207FFFC1D0DCB3BF97E3F2DCE91"collectingDate="2004-07-29"collectionCode="MZB, T"collectorName="von Rintelen & K. Zitzler"country="Indonesia"latitude="-2.7876835"location="Cape Tokaluku"longLatPrecision="9"longitude="121.38617"municipality="Lake Towuti"pageId="0"pageNumber="271"specimenCount="3"specimenCount-female="3"stateProvince="Sulawesi Selatan"typeStatus="paratype">
<materialsCitationid="35906207FFFC1D0DCC6FF8C93FA2CF01"collectingDate="2003-09-21"collectionCode="T"collectorName="von Rintelen & K. Zitzler"country="Indonesia"latitude="-2.7886667"location="Cape Tokaluku"longLatPrecision="13"longitude="121.38966"municipality="Lake Towuti"pageId="0"pageNumber="271"specimenCode="ZMB 29027"specimenCount="11"specimenCount-female="11"stateProvince="Sulawesi Selatan"typeStatus="paratype">
<specimenCodeid="D55EC021FFFC1D0DCB0BF8ED38B1CF4B"box="[883,1006,1827,1848]"collectionCode="ZMB"country="Germany"httpUri="http://grbio.org/cool/8syf-d21i"name="Museum für Naturkunde Berlin (Zoological Collections)"pageId="0"pageNumber="271"type="Museum">ZMB 29027</specimenCode>
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<materialsCitationid="35906207FFFC1D0DCD7DF89338D3CFDF"collectingDate="2003-09-21"collectionCode="ZMB"collectorName="von Rintelen & K. Zitzler"country="Indonesia"latitude="-2.7886667"location="Cape Tokaluku"longLatPrecision="13"longitude="121.38966"municipality="Lake Towuti"pageId="0"pageNumber="271"specimenCode="ZMB 29027"specimenCount="4"specimenCount-male="4"stateProvince="Sulawesi Selatan"typeStatus="paratype">
<specimenCodeid="D55EC021FFFC1D0DCC34F8B43F92CFFC"box="[1100,1229,1914,1935]"collectionCode="ZMB"country="Germany"httpUri="http://grbio.org/cool/8syf-d21i"name="Museum für Naturkunde Berlin (Zoological Collections)"pageId="0"pageNumber="271"type="Museum">ZMB 29027</specimenCode>
<materialsCitationid="35906207FFFC1D0DCCEFF8593F6BC06C"collectingDate="2005-01-03"collectionCode="T"collectorName="Y. Cai & von Rintelen & K. Zitzler"country="Indonesia"latitude="-2.7712834"location="Cape Tokaluku"longLatPrecision="9"longitude="121.36383"municipality="Lake Towuti"pageId="0"pageNumber="271"specimenCode="ZRC 2006.0114"specimenCount="12"specimenCount-female="12"stateProvince="Sulawesi Selatan"typeStatus="paratype">
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, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm.
, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm.
<emphasisid="B78CB448FFF81D09C8F0FF0E3A9DC8A6"bold="true"box="[136,450,192,213]"italics="true"pageId="4"pageNumber="275">Comparative material examined</emphasis>
<materialsCitationid="35906207FFF81D09C9A6FF0F3958C95F"collectingDate="1989-03-15"collectionCode="ZRC"collectorName="M. Kottelat & A. Werner"country="Indonesia"location="Lake Towuti"municipality="Timampu"pageId="4"pageNumber="275"specimenCount="2"specimenCount-female="2"stateProvince="Sulawesi Utara">
<collectionCodeid="E3E9F09FFFF81D09CAEAFF13399AC881"box="[658,709,221,242]"country="Singapore"httpUri="http://grbio.org/cool/16z4-1tbx"name="Zoological Reference Collection, National University of Singapore"pageId="4"pageNumber="275">ZRC</collectionCode>
<materialsCitationid="35906207FFF81D09CA68FED93BB6C9F1"collectingDate="1989-03-14"collectionCode="ZRC"collectorName="M. Kottelat & A. Werner"country="Indonesia"location="Lake Towuti"municipality="Timampu"pageId="4"pageNumber="275"specimenCount="2"specimenCount-female="2"stateProvince="Sulawesi Utara">
<collectionCodeid="E3E9F09FFFF81D09C8F0FEFA3BE6C93A"box="[136,185,308,329]"country="Singapore"httpUri="http://grbio.org/cool/16z4-1tbx"name="Zoological Reference Collection, National University of Singapore"pageId="4"pageNumber="275">ZRC</collectionCode>
<figureCitationid="1DC374DFFFF81D09CA03FE64398EC9B2"box="[635,721,426,449]"captionStart="Fig"captionStartId="1.[113,148,2035,2056]"captionTargetBox="[109,1441,211,1962]"captionTargetId="figure-61@1.[89,1465,192,1990]"captionTargetPageId="1"captionText="Fig. 1. A, Malili Lake system of Sulawesi: Caridina spongicola, new species, collecting sites in the outlet bay of Lake Towuti; B, rostrum variation within a population of C. spongicola (ZMB 29027) (scale bar: 1 mm); C, Caridina spongicola in its natural habitat; D, colour pattern of C. spongicola (ZMB)."figureDoi="http://doi.org/10.5281/zenodo.13245392"httpUri="https://zenodo.org/record/13245392/files/figure.png"pageId="4"pageNumber="275">Fig. 1B</figureCitation>
<figureCitationid="1DC374DFFFF81D09CAA7FE64385DC9B2"box="[735,770,426,449]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">2A</figureCitation>
<figureCitationid="1DC374DFFFF81D09C8F0FE043BF4C992"box="[136,171,458,481]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">3A</figureCitation>
), anterior third slightly upturned, reaching to or slightly beyond third segment of antennular peduncle, 0.9-1.0 times as long as carapace, armed dorsally with 11-19 + 3-5 teeth, posterior to orbital margin, armed ventrally with 4-10 teeth, dorsal anterior teeth less densely spaced. Antennal spine situated below inferior orbital angle. Pterygostomian angle broadly rounded.
<figureCitationid="1DC374DFFFF81D09C8B1FD043A79CA92"box="[201,294,714,737]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Figs. 2A</figureCitation>
<figureCitationid="1DC374DFFFF81D09C948FD043A0ECA92"box="[304,337,714,737]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">3A</figureCitation>
) well developed, anterior end reaching to or beyond half length of basal segment of antennular peduncle. Antennular peduncle 0.8-0.9 times as long as carapace (n=10), second segment slightly shorter than basal segment, about twice as long as third segment. Stylocerite reaching well beyond half length of basal segment of antennular peduncle, but not reaching end of basal segment. Scaphocerite slender, 3.5-4.8 times as long as wide (n=7).
<figureCitationid="1DC374DFFFF81D09C933FBE43AE2CC32"box="[331,445,1066,1089]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Figs. 2E, I</figureCitation>
) 2.8-4.1 times as long as wide (n=13), distal margin rounded, without projection, with 3-4 pairs of spinules and 1 pair of dorsolateral spinules; distal end with 4 pairs of spines, lateral pair distinctly longer than intermediate pairs, median pair shortest. Preanal carina (
<figureCitationid="1DC374DFFFF81D09CAA3FB643BF8CC92"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Fig. 2B</figureCitation>
<figureCitationid="1DC374DFFFF81D09CA07FB043994CC92"box="[639,715,1226,1249]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Fig. 2F</figureCitation>
<figureCitationid="1DC374DFFFF81D09C9C8FAE43AA1CD32"box="[432,510,1322,1345]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3B</figureCitation>
<figureCitationid="1DC374DFFFF81D09CAD7FA8439A1CD12"box="[687,766,1354,1377]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3C</figureCitation>
<figureCitationid="1DC374DFFFF81D09C89EFA643A66CDB2"box="[230,313,1450,1473]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3G</figureCitation>
<figureCitationid="1DC374DFFFF81D09CADAFA0439A1CD92"box="[674,766,1482,1505]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3D</figureCitation>
<figureCitationid="1DC374DFFFF81D09C963F9C43A29CE52"box="[283,374,1546,1569]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3F</figureCitation>
<figureCitationid="1DC374DFFFF81D09C972F9E43A04CE32"box="[266,347,1578,1601]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3E</figureCitation>
<figureCitationid="1DC374DFFFF81D09C9D2F9443AA5CED2"box="[426,506,1674,1697]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Fig. 2J</figureCitation>
<figureCitationid="1DC374DFFFF81D09CA4FF90439D3CE92"box="[567,652,1738,1761]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Fig. 2K</figureCitation>
<figureCitationid="1DC374DFFFF81D09CAAAF8843B98CFF2"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Figs. 2C, D</figureCitation>
<figureCitationid="1DC374DFFFF81D09CA70F84439DECFD2"box="[520,641,1930,1953]"captionStart="Fig"captionStartId="2.[136,171,2008,2029]"captionTargetBox="[146,1466,279,1911]"captionTargetId="figure-97@2.[122,1490,239,1949]"captionTargetPageId="2"captionText="Fig. 2. Caridina spongicola, new species, paratype female (cl 2.1mm) (ZMB 29027), Lake Towuti, Sulawesi: A, cephalothorax and cephalic appendages, lateral view; B, preanal carina; C, dactylus of third pereiopod; D, third pereiopod; E, telson; F, uropodal diaeresis; G, dactylus of fifth pereiopod; H, fifth pereiopod; I, distal end of telson; J, first pereiopod, K, second pereiopod; L, SEM images of chela and carpus of first and second pereiopods. Scale bars: A = 1 mm; B, D, H-M = 0.5 mm; C, F-G = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245394"httpUri="https://zenodo.org/record/13245394/files/figure.png"pageId="4"pageNumber="275">Figs. 2G, H</figureCitation>
<figureCitationid="1DC374DFFFF81D09C99DF8243965C072"box="[485,570,2026,2049]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3H</figureCitation>
<figureCitationid="1DC374DFFFF81D09CACBF7C439A1C052"box="[691,766,2058,2081]"captionStart="Fig"captionStartId="3.[113,148,2006,2027]"captionTargetBox="[186,1368,203,1950]"captionTargetId="figure-89@3.[158,1409,170,2013]"captionTargetPageId="3"captionText="Fig. 3. Caridina spongicola, new species, paratype female (cl 2.6 mm) (ZMB 29027), Lake Towuti, Sulawesi. A, cephalothorax and cephalic appendages; lateral view; B, mandible; C, maxillule; D, first maxilliped; E, third maxilliped; F, second maxilliped; G, maxilla; H, male first pleopod; paratype male (cl 1.9 mm) (ZMB 29027); I, male second pleopod; paratype male (cl 1.9 mm) (ZMB 29027). Scale bars: A = 1 mm; B-G = 0.5 mm; H, I = 0.2 mm."figureDoi="http://doi.org/10.5281/zenodo.13245396"httpUri="https://zenodo.org/record/13245396/files/figure.png"pageId="4"pageNumber="275">Fig. 3I</figureCitation>
<figureCitationid="1DC374DFFFF81D09CC53FD8F3FDCCA2B"box="[1067,1155,577,600]"captionStart="Fig"captionStartId="1.[113,148,2035,2056]"captionTargetBox="[109,1441,211,1962]"captionTargetId="figure-61@1.[89,1465,192,1990]"captionTargetPageId="1"captionText="Fig. 1. A, Malili Lake system of Sulawesi: Caridina spongicola, new species, collecting sites in the outlet bay of Lake Towuti; B, rostrum variation within a population of C. spongicola (ZMB 29027) (scale bar: 1 mm); C, Caridina spongicola in its natural habitat; D, colour pattern of C. spongicola (ZMB)."figureDoi="http://doi.org/10.5281/zenodo.13245392"httpUri="https://zenodo.org/record/13245392/files/figure.png"pageId="4"pageNumber="275">Fig. 1 C</figureCitation>
A preliminary gut content analysis was carried out to investigate the shrimps’ diet. None of the six dissected guts contained traces of poriferean spicules. The spicules are presumably too big (
; C. Eckert, pers. comm.) to be consumed by the shrimps. On the other hand, a variety of different diatoms, which possibly accumulate on or within the sponge, were found in the guts. These findings suggest that the shrimps do not feed on sponge’s tissue and thus do not parasitize their hosts. Instead, they appear to be commensals using the sponge’s cavities as shelter and the inherent accumulation of diatoms as a food supply.
<figureCitationid="1DC374DFFFF81D09CBF7FBAF3F5ECC0B"box="[911,1025,1121,1144]"captionStart="Fig"captionStartId="1.[113,148,2035,2056]"captionTargetBox="[109,1441,211,1962]"captionTargetId="figure-61@1.[89,1465,192,1990]"captionTargetPageId="1"captionText="Fig. 1. A, Malili Lake system of Sulawesi: Caridina spongicola, new species, collecting sites in the outlet bay of Lake Towuti; B, rostrum variation within a population of C. spongicola (ZMB 29027) (scale bar: 1 mm); C, Caridina spongicola in its natural habitat; D, colour pattern of C. spongicola (ZMB)."figureDoi="http://doi.org/10.5281/zenodo.13245392"httpUri="https://zenodo.org/record/13245392/files/figure.png"pageId="4"pageNumber="275">Fig. 1C, D</figureCitation>
), first two usually joint at dorsal surface to form a n-shaped band in lateral view; anterior part of cephalothorax, antennular peduncle, bases of antennae and posterior rostrum similarly pigmented, whereas anterior rostrum, antennae and distal antennules mostly unpigmented; first and second pereiopod white with light brown setae, other pereiopods white with brown bands; abdomen with a conspicuous white stripe expanding laterally along each side, dorsally densely covered with dark brown bands except for a white patch on third sternum, ventrally uniformly brown; uropods with a characteristic brown band on distal endopod, endopod and exopods with white-pigmented tips, respectively; pleopods and telson colourless; eggs usually dark brown. This colour pattern remains visible even if the shrimps are under stress though the intensity of the colour merely fades.
<bibRefCitationid="E16915ABFFF81D09CB32F8AF3F4ACF0B"author="Woltereck, E"box="[842,1045,1889,1912]"pageId="4"pageNumber="275"pagination="208 - 262"refId="ref3065"refString="Woltereck, E., 1937 a. Systematisch - variationsanalytische Untersuchungen uber die Rassen-und Artbildung bei Susswassergarnelen aus der Gattung Caridina (Decapoda, Atyidae). Internationale Revue der gesamten Hydrobiologie und Hydrographie, 34: 208 - 262."type="journal article"year="1937">Woltereck, 1937a</bibRefCitation>
), but can be distinguished by a lower number of ventral teeth in
<bibRefCitationid="E16915ABFFF91D08C97BFF0F3ABEC8AB"author="Woltereck, E"box="[259,481,193,216]"pageId="5"pageNumber="276"pagination="294 - 330"refId="ref3107"refString="Woltereck, E., 1937 b. Zur Systematik und geographischen Verbreitung der Caridinen. Internationale Revue der gesamten Hydrobiologie und Hydrographie, 34: 294 - 330."type="journal article"year="1937">Woltereck, 1937b</bibRefCitation>
), the stouter first two pereiopods, and the number of accessory spines (1-2 vs.
<figureCitationid="1DC374DFFFF91D08C9AAFE6F397BC9CB"box="[466,548,417,440]"captionStart="Fig"captionStartId="1.[113,148,2035,2056]"captionTargetBox="[109,1441,211,1962]"captionTargetId="figure-61@1.[89,1465,192,1990]"captionTargetPageId="1"captionText="Fig. 1. A, Malili Lake system of Sulawesi: Caridina spongicola, new species, collecting sites in the outlet bay of Lake Towuti; B, rostrum variation within a population of C. spongicola (ZMB 29027) (scale bar: 1 mm); C, Caridina spongicola in its natural habitat; D, colour pattern of C. spongicola (ZMB)."figureDoi="http://doi.org/10.5281/zenodo.13245392"httpUri="https://zenodo.org/record/13245392/files/figure.png"pageId="5"pageNumber="276">Fig. 1B</figureCitation>
, but in all currently described Malili lakes species (see
<bibRefCitationid="E16915ABFFF91D08C8D9FDEF3A00CA4B"author="Woltereck, E"box="[161,351,545,568]"pageId="5"pageNumber="276"pagination="208 - 262"refId="ref3065"refString="Woltereck, E., 1937 a. Systematisch - variationsanalytische Untersuchungen uber die Rassen-und Artbildung bei Susswassergarnelen aus der Gattung Caridina (Decapoda, Atyidae). Internationale Revue der gesamten Hydrobiologie und Hydrographie, 34: 208 - 262."type="journal article"year="1937">Woltereck, 1937a</bibRefCitation>
; b; Zitzler, pers. observ.). When alive, the atyid shrimps of the Malili Lake system may be easily recognized by their distinctive, conspicuous and usually species-specific live colour patterns (K. Zitzler, unpubl. data).
<bibRefCitationid="E16915ABFFF91D08CA43FC8F3BF4CB0B"author="Roth-Woltereck, E"pageId="5"pageNumber="276"pagination="188 - 192"refId="ref3031"refString="Roth-Woltereck, E., 1958. Limnocaridina iridinae, n. sp. Eine interessante Garnele aus dem Tanganjika-See (Decapoda Atyidae). Zoologischer Anzeiger, 161: 188 - 192."type="journal article"year="1958">Roth-Woltereck, 1958</bibRefCitation>
). The two associations may be even seen as a nice example of ecological convergence between atyid shrimps of the Great Rift lakes in eastern Africa and the Malili Lake system in