treatments-xml/data/03/88/B8/0388B820FFEEFF9FFF5D8547D4A7FD06.xml

<document id="60CFE91787E3CA65FEA3C8168341EBF6" ID-CLB-Dataset="26110" ID-DOI="10.11646/zootaxa.4651.1.5" ID-GBIF-Dataset="91dd00f2-f04e-4733-a06d-5b5952ee3be2" ID-ISSN="1175-5326" ID-Zenodo-Dep="3359122" ID-ZooBank="C5122520-F063-4A16-BAFD-90B78D9A36DA" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1564770051808" checkinUser="plazi" docAuthor="Anker, Arthur &amp; Pachelle, Paulo P. G." docDate="2019" docId="0388B820FFEEFF9FFF5D8547D4A7FD06" docLanguage="en" docName="zootaxa.4651.1.5.pdf" docOrigin="Zootaxa 4651 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Alpheus perlas Anker &amp; Pachelle 2019, sp. nov." docType="treatment" docVersion="7" lastPageNumber="81" masterDocId="FFB1C058FFEFFF99FFCA876AD07EFFC9" masterDocTitle="Alpheus perlas, sp. nov., a new infaunal snapping shrimp from the Pacific coast of Panama (Malacostraca: Decapoda: Alpheidae)" masterLastPageNumber="84" masterPageNumber="75" pageNumber="76" updateTime="1698748588824" updateUser="ExternalLinkService">
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<mods:title id="4230227CB0D7D95A5DFF3C2DA4ADF84E">Alpheus perlas, sp. nov., a new infaunal snapping shrimp from the Pacific coast of Panama (Malacostraca: Decapoda: Alpheidae)</mods:title>
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<mods:namePart id="766B04D295F6A056EF0EE3FD6C26193D">Anker, Arthur</mods:namePart>
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<mods:namePart id="1808DD06A8DA422E0900F57E85E6D391">Pachelle, Paulo P. G.</mods:namePart>
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<mods:date id="0A5F47DAFA316B7B34E281818E0A7BE0">2019</mods:date>
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<treatment id="0388B820FFEEFF9FFF5D8547D4A7FD06" ID-GBIF-Taxon="158955920" LSID="urn:lsid:plazi:treatment:0388B820FFEEFF9FFF5D8547D4A7FD06" httpUri="http://treatment.plazi.org/id/0388B820FFEEFF9FFF5D8547D4A7FD06" lastPageId="6" lastPageNumber="81" pageId="1" pageNumber="76">
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<paragraph id="8B9E0936FFEEFF98FF5D8547D1DAFD81" blockId="1.[151,420,557,620]" box="[151,420,557,584]" pageId="1" pageNumber="76">
<heading id="D0D6BE5AFFEEFF98FF5D8547D1DAFD81" bold="true" box="[151,420,557,584]" fontSize="11" level="1" pageId="1" pageNumber="76" reason="1">
<emphasis id="B955D524FFEEFF98FF5D8547D1DAFD81" bold="true" box="[151,420,557,584]" pageId="1" pageNumber="76">
<taxonomicName id="4C2172B5FFEEFF98FF5D8547D13DFD81" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[151,323,557,584]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="76" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEEFF98FF5D8547D13DFD81" bold="true" box="[151,323,557,584]" italics="true" pageId="1" pageNumber="76">Alpheus perlas</emphasis>
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<paragraph id="8B9E0936FFEEFF98FF5D8538D163FDA5" blockId="1.[151,420,557,620]" box="[151,285,594,620]" pageId="1" pageNumber="76">
<figureCitation id="131A15B3FFEEFF98FF5D8538D163FDA5" box="[151,285,594,620]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="2.[151,250,1785,1810]" captionStartId-1="3.[151,250,1452,1477]" captionStartId-2="6.[151,250,1928,1953]" captionStartId-3="7.[151,250,1529,1554]" captionTargetBox-0="[160,1420,192,1744]" captionTargetBox-1="[167,1423,188,1420]" captionTargetBox-2="[257,1330,757,1891]" captionTargetBox-3="[151,1436,181,1504]" captionTargetId-0="figure@2.[151,1436,179,1757]" captionTargetId-1="figure@3.[151,1436,181,1427]" captionTargetId-2="figure@6.[248,1340,741,1903]" captionTargetId-3="figure@7.[151,1436,181,1504]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="6" captionTargetPageId-3="7" captionText-0="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." captionText-1="FIGURE 2. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—major cheliped, carpus and chela, mesial view; B—same, coxa to proximal portion of palm, lateral view; C—same, carpus and chela, lateral view; D—same, dactylus with plunger, lateral view; E—minor cheliped, lateral view; Fsame, carpus and chela, mesial view." captionText-2="FIGURE 3. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—second pereiopod, lateral view; B—third pereiopod, lateral view; C—same, distal part of propodus and dactylus, lateral view; D—same, detail of cuspidate seta on ischium; E—fifth pereiopod, lateral view." captionText-3="FIGURE 4. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—living individual shortly after collection, dorsal view; B—same, lateral view (photographs by AA)." httpUri-0="https://zenodo.org/record/3359124/files/figure.png" httpUri-1="https://zenodo.org/record/3359126/files/figure.png" httpUri-2="https://zenodo.org/record/3359128/files/figure.png" httpUri-3="https://zenodo.org/record/3359130/files/figure.png" pageId="1" pageNumber="76">Figures 1–4</figureCitation>
</paragraph>
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<paragraph id="8B9E0936FFEEFF98FF5D85FED54AFD3C" blockId="1.[151,1437,658,2044]" pageId="1" pageNumber="76">
<emphasis id="B955D524FFEEFF98FF5D85FED13EFD64" bold="true" box="[151,320,658,686]" pageId="1" pageNumber="76">Type material</emphasis>
. 
<materialsCitation id="3B49036BFFEEFF98FE8585F9D54AFD3C" ID-GBIF-Occurrence="2302322112" collectingDate="2015-04-20" collectingDateMax="2301" collectingDateMin="2015-04-20" collectorName="A. Anker" country="Panama" county="Casayeta" elevation="5" latitude="8.520722" location="Pacific" longLatPrecision="1" longitude="-79.024" municipality="Las Perlas Archipelago" pageId="1" pageNumber="76" specimenCount="1" typeStatus="holotype">
<typeStatus id="549AB794FFEEFF98FE8585F9D1C2FD64" box="[335,444,659,685]" pageId="1" pageNumber="76" type="holotype">Holotype</typeStatus>
: male (cl 
<quantity id="4CD9A4D3FFEEFF98FDE485F9D2F4FD67" box="[558,650,659,686]" metricMagnitude="-3" metricUnit="m" metricValue="6.7" pageId="1" pageNumber="76" unit="mm" value="6.7">6.7 mm</quantity>
), MNHN-IU- 
<collectingDate id="EFDBD61EFFEEFF98FCE385F9D3DEFD64" box="[809,928,659,685]" pageId="1" pageNumber="76" value="2019" valueMax="2301">
<date id="FF9F2FF6FFEEFF98FCE385F9D3DEFD64" box="[809,928,659,685]" pageId="1" pageNumber="76" value="2019" valueMax="2301">2019-2301</date>
</collectingDate>
, 
<collectingCountry id="F33649A6FFEEFF98FC6785FED477FD67" box="[941,1033,660,686]" name="Panama" pageId="1" pageNumber="76">Panama</collectingCountry>
, 
<location id="8EFE5FEDFFEEFF98FBDF85F9D41DFD64" LSID="urn:lsid:plazi:treatment:0388B820FFEEFF9FFF5D8547D4A7FD06:8EFE5FEDFFEEFF98FBDF85F9D41DFD64" box="[1045,1123,659,685]" country="Panama" county="Casayeta" latitude="8.520722" longLatPrecision="1" longitude="-79.024" municipality="Las Perlas Archipelago" name="Pacific" pageId="1" pageNumber="76">Pacific</location>
coast, 
<location id="8EFE5FEDFFEEFF98FB7F85FED49CFD67" LSID="urn:lsid:plazi:treatment:0388B820FFEEFF9FFF5D8547D4A7FD06:8EFE5FEDFFEEFF98FB7F85FED49CFD67" box="[1205,1250,660,686]" country="Panama" county="Casayeta" latitude="8.520722" longLatPrecision="1" longitude="-79.024" municipality="Las Perlas Archipelago" name="Bay" pageId="1" pageNumber="76">Bay</location>
of 
<collectingCountry id="F33649A6FFEEFF98FAC185FED519FD67" box="[1291,1383,660,686]" name="Panama" pageId="1" pageNumber="76">Panama</collectingCountry>
, 
<collectingMunicipality id="6BFA934CFFEEFF98FABE85FED10EFD18" pageId="1" pageNumber="76">Las Perlas Archipelago</collectingMunicipality>
, Isla 
<collectingCounty id="62FF71BAFFEEFF98FE6585DDD269FD18" box="[431,535,695,721]" pageId="1" pageNumber="76">Casayeta</collectingCounty>
, 
<geoCoordinate id="EE156FF1FFEEFF98FDEE85DDD2CAFD18" box="[548,692,695,721]" degrees="8" direction="north" minutes="31" orientation="latitude" pageId="1" pageNumber="76" precision="1" seconds="14.6" value="8.520722">8°31’14.6”N</geoCoordinate>
<geoCoordinate id="EE156FF1FFEEFF98FD7785DDD31FFD18" box="[701,865,695,721]" degrees="79" direction="west" minutes="01" orientation="longitude" pageId="1" pageNumber="76" precision="1" seconds="26.4" value="-79.024">79°01’26.4”W</geoCoordinate>
, small shallow bay with mudflat fringed by rocks and mangroves, depth: less than 
<elevation id="000CEE05FFEEFF98FDCF85B0D23BFD3C" box="[517,581,730,757]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="1" pageNumber="76" unit="m" value="0.5">
<quantity id="4CD9A4D3FFEEFF98FDCF85B0D23BFD3C" box="[517,581,730,757]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="1" pageNumber="76" unit="m" value="0.5">0.5 m</quantity>
</elevation>
at low tide, in burrow, suction pump, leg. 
<collectorName id="26D46CE0FFEEFF98FBD485B1D4F8FD3C" box="[1054,1158,731,757]" pageId="1" pageNumber="76">A. Anker</collectorName>
, 
<collectingDate id="EFDBD61EFFEEFF98FB5B85B1D54FFD3C" box="[1169,1329,730,757]" pageId="1" pageNumber="76" value="2015-04-20">
<date id="FF9F2FF6FFEEFF98FB5B85B1D54FFD3C" box="[1169,1329,730,757]" pageId="1" pageNumber="76" value="2015-04-20">20 April 2015</date>
</collectingDate>
.
</materialsCitation>
</paragraph>
<paragraph id="8B9E0936FFEEFF98FF0D8594D16CFC26" blockId="1.[151,1437,658,2044]" pageId="1" pageNumber="76">
<emphasis id="B955D524FFEEFF98FF0D8594D12FFCD0" bold="true" box="[199,337,766,793]" pageId="1" pageNumber="76">Description</emphasis>
. Small-sized species of 
<taxonomicName id="4C2172B5FFEEFF98FDAC8594D2BEFCD1" authorityName="Fabricius" authorityYear="1798" box="[614,704,766,792]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="76" phylum="Arthropoda" rank="genus">
<emphasis id="B955D524FFEEFF98FDAC8594D2BEFCD1" box="[614,704,766,792]" italics="true" pageId="1" pageNumber="76">Alpheus</emphasis>
</taxonomicName>
(
<typeStatus id="549AB794FFEEFF98FD058594D34DFCD1" box="[719,819,766,792]" pageId="1" pageNumber="76" type="holotype">holotype</typeStatus>
at cl 
<quantity id="4CD9A4D3FFEEFF98FCBE8594D3B1FCD0" box="[884,975,766,793]" metricMagnitude="-3" metricUnit="m" metricValue="6.7" pageId="1" pageNumber="76" unit="mm" value="6.7">6.7 mm</quantity>
). Carapace smooth, glabrous, not setose, not pubescent. Rostrum very short, subtriangular, as long as broad at base, subacute distally, not reaching mid-length of first article of antennular peduncle; rostral carina feebly developed, rounded dorsally, gradually fading posteriorly to eye level (
<figureCitation id="131A15B3FFEEFF98FEAB8400D1A3FC4D" box="[353,477,874,900]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1A, B</figureCitation>
). Orbital hoods moderately developed, not particularly swollen, semi-open frontally, with anterior margin broadly rounded; frontal margin between rostrum and orbital hoods slightly concave; adrostral furrows absent (
<figureCitation id="131A15B3FFEEFF98FE8784DBD1B9FC05" box="[333,455,945,972]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1A, B</figureCitation>
). Pterygostomial angle rounded, not protruding anteriorly (
<figureCitation id="131A15B3FFEEFF98FBAA84DBD4C9FC02" box="[1120,1207,945,971]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1B</figureCitation>
); cardiac notch well developed.
</paragraph>
<paragraph id="8B9E0936FFEEFF98FF0D8493D275FB6B" blockId="1.[151,1437,658,2044]" pageId="1" pageNumber="76">
Telson very broad, subrectangular, tapering distally, about 1.8 times as long as maximal width, with lateral margins slightly convex, not constricted; dorsal surface with two pairs of short cuspidate setae both inserted far from lateral margin, first pair at about mid-length, second pair at about 0.8 length of telson; posterior margin broadly rounded, without spiniform setae; each posterolateral angle with pair of slender spiniform setae, mesial about three times as long as lateral (
<figureCitation id="131A15B3FFEEFF98FE6C83EDD183FB6B" box="[422,509,1159,1186]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1C</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEEFF98FF0D83C1D5E4FA55" blockId="1.[151,1437,658,2044]" pageId="1" pageNumber="76">
Antennular peduncle moderately stout; stylocerite broad, inflated, with small sharp point almost reaching distal margin of first article; ventromesial carina with strong, anteriorly directed tooth; second article moderately elongate, almost twice as long as wide; lateral antennular flagellum with secondary ramus fused to main ramus over most of its length, with numerous groups of aesthetascs starting at eighth joint (
<figureCitation id="131A15B3FFEEFF98FC14827CD400FAF8" box="[990,1150,1302,1329]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1A, B, D</figureCitation>
). Antenna with basicerite moderately stout, its distoventral margin bearing small acute tooth; scaphocerite with well-developed blade, straight to faintly concave lateral margin and strong broad distolateral tooth overreaching blade but not distal margin of antennular peduncle; carpocerite reaching far beyond both scaphocerite and end of antennular peduncle (
<figureCitation id="131A15B3FFEEFF98FAD982E8D5F2FA55" box="[1299,1420,1410,1436]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1A, B</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEEFF98FF0D82CFD4C7F986" blockId="1.[151,1437,658,2044]" pageId="1" pageNumber="76">
Mouthparts typical for genus in external observation. Third maxilliped moderately stout; coxa with projecting, distally subacute lateral plate; antepenultimate article flattened ventrolaterally, with straight mesial margin; penultimate article relatively short, widening distally, about twice as long as maximal (distal) width; ultimate article tapering distally, with numerous rows of short serrulate setae and longer stiff setae, distally unarmed; arthrobranch well developed, with smaller accessory branch reminiscent of small pleurobranch (
<figureCitation id="131A15B3FFEEFF98FBFD815ED4D2F986" box="[1079,1196,1588,1615]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="1" pageNumber="76">Fig. 1E, F</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEEFF98FF0D8132D34DF835" blockId="1.[151,1437,658,2044]" pageId="1" pageNumber="76">
Male major cheliped overall moderately robust for species of 
<taxonomicName id="4C2172B5FFEEFF98FC458133D463F9BB" baseAuthorityName="Audouin" baseAuthorityYear="1826" box="[911,1053,1624,1651]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="76" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFEEFF98FC458133D463F9BB" box="[911,1053,1624,1651]" italics="true" pageId="1" pageNumber="76">A. edwardsii</emphasis>
</taxonomicName>
group; ischium very short, stout, unarmed; merus relatively stout, about 2.4 times as long as wide, distodorsal margin ending bluntly, mesial margin smooth, without spiniform setae, unarmed (without tooth) on distomesial margin; carpus very short, cup-shaped; chela elongate, slightly compressed; palm oval in cross-section, about 1.5 times as long as fingers; palm surface mostly smooth, without tubercles, not excessively setose; dorsal transverse groove broad, adjacent shoulder sloping smoothly, not overhanging groove; ventral transverse groove well marked, however, not significantly extending onto mesial surface, adjacent shoulder broadly rounded, not protruding anteriorly to overhang groove; mesial face of palm with deep longitudinal groove stretching from mesial extension of dorsal transverse groove posteriorly, almost reaching linea impressa; lateral face of palm with similar longitudinal groove stretching from lateral extension of dorsal transverse groove towards posterior half of palm, reaching linea impressa; dactylus slightly longer than pollex, distally rounded, not twisted, with short, moderately stout, distally truncate plunger, latter with numerous stamen-shaped sensillae; adhesive disks small (
<figureCitation id="131A15B3FFEEFF98FD63808BD292F835" box="[681,748,2017,2044]" captionStart="FIGURE 2" captionStartId="3.[151,250,1452,1477]" captionTargetBox="[167,1423,188,1420]" captionTargetId="figure@3.[151,1436,181,1427]" captionTargetPageId="3" captionText="FIGURE 2. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—major cheliped, carpus and chela, mesial view; B—same, coxa to proximal portion of palm, lateral view; C—same, carpus and chela, lateral view; D—same, dactylus with plunger, lateral view; E—minor cheliped, lateral view; Fsame, carpus and chela, mesial view." httpUri="https://zenodo.org/record/3359126/files/figure.png" pageId="1" pageNumber="76">Fig. 2</figureCitation>
A–D).
</paragraph>
<caption id="DF5E59BEFFEDFF9BFF5D8193D5E3F86B" httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="2" pageNumber="77" startId="2.[151,250,1785,1810]" targetBox="[160,1420,192,1744]" targetPageId="2">
<paragraph id="8B9E0936FFEDFF9BFF5D8193D5E3F86B" blockId="2.[151,1437,1785,1954]" pageId="2" pageNumber="77">
<emphasis id="B955D524FFEDFF9BFF5D8193D173F8DB" bold="true" box="[151,269,1785,1810]" pageId="2" pageNumber="77">FIGURE 1</emphasis>
. 
<taxonomicName id="4C2172B5FFEDFF9BFED38193D1D1F8D8" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[281,431,1785,1809]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="77" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEDFF9BFED38193D1D1F8D8" box="[281,431,1785,1809]" italics="true" pageId="2" pageNumber="77">Alpheus perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEDFF9BFE7F8190D27BF8DB" box="[437,517,1786,1810]" pageId="2" pageNumber="77" rank="species">
<emphasis id="B955D524FFEDFF9BFE7F8190D27BF8DB" bold="true" box="[437,517,1786,1810]" pageId="2" pageNumber="77">sp. nov.</emphasis>
</taxonomicNameLabel>
, holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity).
</paragraph>
</caption>
<caption id="DF5E59BEFFECFF9AFF5D82C6D273F9F8" httpUri="https://zenodo.org/record/3359126/files/figure.png" pageId="3" pageNumber="78" startId="3.[151,250,1452,1477]" targetBox="[167,1423,188,1420]" targetPageId="3">
<paragraph id="8B9E0936FFECFF9AFF5D82C6D273F9F8" blockId="3.[151,1436,1452,1585]" pageId="3" pageNumber="78">
<emphasis id="B955D524FFECFF9AFF5D82C6D173FA0C" bold="true" box="[151,269,1452,1477]" pageId="3" pageNumber="78">FIGURE 2</emphasis>
. 
<taxonomicName id="4C2172B5FFECFF9AFED382C7D1D1FA0C" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[281,431,1453,1477]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="3" pageNumber="78" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFECFF9AFED382C7D1D1FA0C" box="[281,431,1453,1477]" italics="true" pageId="3" pageNumber="78">Alpheus perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFECFF9AFE7F82C7D27BFA0C" box="[437,517,1453,1477]" pageId="3" pageNumber="78" rank="species">
<emphasis id="B955D524FFECFF9AFE7F82C7D27BFA0C" bold="true" box="[437,517,1453,1477]" pageId="3" pageNumber="78">sp. nov.</emphasis>
</taxonomicNameLabel>
, holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—major cheliped, carpus and chela, mesial view; B—same, coxa to proximal portion of palm, lateral view; C—same, carpus and chela, lateral view; D—same, dactylus with plunger, lateral view; E—minor cheliped, lateral view; Fsame, carpus and chela, mesial view.
</paragraph>
</caption>
<paragraph id="8B9E0936FFECFF9AFF0D8135D359F898" blockId="3.[151,1436,1631,2018]" pageId="3" pageNumber="78">
Male minor cheliped significantly smaller than major cheliped, with much weaker, shorter chela; ischium short, stout, unarmed; merus somewhat slenderer, about 2.8 times as long as wide, otherwise similar to that of major cheliped; carpus also noticeably longer, cup-shaped; chela not particularly elongate, moderately slender, with palm subcylindrical in cross-section, somewhat shorter than fingers; palm surface smooth, without grooves or notches; fingers subequal in length, crossing distally, simple, not balaeniceps; dactylus not expanded, more conical distally, with simple blade-like cutting edge; pollex shallowly excavated along lateral side cutting edge; adhesive disks not discernable (
<figureCitation id="131A15B3FFECFF9AFEEC805DD1E4F89B" box="[294,410,1847,1874]" captionStart="FIGURE 2" captionStartId="3.[151,250,1452,1477]" captionTargetBox="[167,1423,188,1420]" captionTargetId="figure@3.[151,1436,181,1427]" captionTargetPageId="3" captionText="FIGURE 2. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—major cheliped, carpus and chela, mesial view; B—same, coxa to proximal portion of palm, lateral view; C—same, carpus and chela, lateral view; D—same, dactylus with plunger, lateral view; E—minor cheliped, lateral view; Fsame, carpus and chela, mesial view." httpUri="https://zenodo.org/record/3359126/files/figure.png" pageId="3" pageNumber="78">Fig. 2E, F</figureCitation>
). Female minor cheliped unknown.
</paragraph>
<paragraph id="8B9E0936FFECFF9DFF0D8031D1CEFE1A" blockId="3.[151,1436,1631,2018]" lastBlockId="4.[151,1437,153,2015]" lastPageId="4" lastPageNumber="79" pageId="3" pageNumber="78">
Second pereiopod moderately slender; ischium and merus subequal in length; carpus with five subdivisions, first longest, ratio of carpal subdivisions approximately equal to 3.2/2.4/1.2/1.0/1.8; chela as long as two distal-most carpal subdivisions combined (
<figureCitation id="131A15B3FFECFF9AFE3380C9D22BF874" box="[505,597,1955,1981]" captionStart="FIGURE 3" captionStartId="6.[151,250,1928,1953]" captionTargetBox="[257,1330,757,1891]" captionTargetId="figure@6.[248,1340,741,1903]" captionTargetPageId="6" captionText="FIGURE 3. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—second pereiopod, lateral view; B—third pereiopod, lateral view; C—same, distal part of propodus and dactylus, lateral view; D—same, detail of cuspidate seta on ischium; E—fifth pereiopod, lateral view." httpUri="https://zenodo.org/record/3359128/files/figure.png" pageId="3" pageNumber="78">Fig. 3A</figureCitation>
). Third pereiopod rather stout; ischium with very small cuspidate seta on ventrolateral surface; merus about 3.5 times as long as maximal width, slightly inflated, unarmed; carpus about half- length of merus, much slenderer, with long stiff distoventral seta; propodus noticeably longer than carpus but shorter than merus, with seven or so irregularly inserted, stout spiniform setae along ventral and ventrolateral margin, in addition to one pair of spiniform setae near dactylar base; dactylus about half-length of propodus, stout, conical, very slightly expanded and curved (
<figureCitation id="131A15B3FFEBFF9DFDEE866FD21BFED6" box="[548,613,261,287]" captionStart="FIGURE 3" captionStartId="6.[151,250,1928,1953]" captionTargetBox="[257,1330,757,1891]" captionTargetId="figure@6.[248,1340,741,1903]" captionTargetPageId="6" captionText="FIGURE 3. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—second pereiopod, lateral view; B—third pereiopod, lateral view; C—same, distal part of propodus and dactylus, lateral view; D—same, detail of cuspidate seta on ischium; E—fifth pereiopod, lateral view." httpUri="https://zenodo.org/record/3359128/files/figure.png" pageId="4" pageNumber="79">Fig. 3</figureCitation>
B–D). Fourth pereiopod generally similar to third, slightly slenderer. Fifth pereiopod much slenderer than third and fourth; ischium unarmed; merus not inflated, about six times as long as wide; carpus slightly less than 0.8 times length of merus; propodus with three spiniform setae along ventromesial margin and one distal pair of spiniform setae near articulation with dactylus; distal third of propodus with welldeveloped rows of serrulate setae on ventrolateral surface; dactylus about 0.4 length of propodus, conical, simple, almost straight (
<figureCitation id="131A15B3FFEBFF9DFE8686D3D1DDFE1A" box="[332,419,441,467]" captionStart="FIGURE 3" captionStartId="6.[151,250,1928,1953]" captionTargetBox="[257,1330,757,1891]" captionTargetId="figure@6.[248,1340,741,1903]" captionTargetPageId="6" captionText="FIGURE 3. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—second pereiopod, lateral view; B—third pereiopod, lateral view; C—same, distal part of propodus and dactylus, lateral view; D—same, detail of cuspidate seta on ischium; E—fifth pereiopod, lateral view." httpUri="https://zenodo.org/record/3359128/files/figure.png" pageId="4" pageNumber="79">Fig. 3E</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEBFF9DFF0D86B7D421FD4E" blockId="4.[151,1437,153,2015]" pageId="4" pageNumber="79">
Male first pleopod with protopod bearing conspicuous subacute process on subdistal ventral (posterior) margin, distally carrying single thickened seta; endopod very small, fringed with setae (
<figureCitation id="131A15B3FFEBFF9DFBC3856BD41CFDD2" box="[1033,1122,513,539]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="4" pageNumber="79">Fig. 1G</figureCitation>
). Male second pleopod with protopod bearing similar subacute process, but situated slightly more distally on ventral (posterior) margin and without thickened seta; appendix interna longer than appendix masculina, latter furnished with numerous stiff setae on apex and with some stiff setae also on subapical surface and distal half (
<figureCitation id="131A15B3FFEBFF9DFC2B8507D42EFD4E" box="[993,1104,621,647]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="4" pageNumber="79">Fig. 1H, I</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEBFF9DFF0D85FBD465FCDE" blockId="4.[151,1437,153,2015]" pageId="4" pageNumber="79">
Uropod with both mesial and lateral lobes of protopod ending in subacute tooth; exopod and endopod very broad, ovoid; exopod with fairly stout distolateral tooth adjacent to strong distolateral spiniform seta and unarmed distal margin; diaeresis somewhat sinuous, with broadly triangular lobe adjacent and mesial to distolateral spiniform seta; endopod with short row of small spiniform setae on distal margin (
<figureCitation id="131A15B3FFEBFF9DFC778597D472FCDE" box="[957,1036,765,791]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="4" pageNumber="79">Fig. 1J</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEBFF9DFF0D844AD355FC02" blockId="4.[151,1437,153,2015]" pageId="4" pageNumber="79">
<emphasis id="B955D524FFEBFF9DFF0D844AD100FCF2" bold="true" box="[199,382,800,827]" pageId="4" pageNumber="79">Colour pattern</emphasis>
. General body background semitransparent creamy with straw-yellow tinge; carapace with fields of reddish chromatophores, e.g. in postrostral area, along anterolateral margin and on posterodorsal surface; pleon with reddish chromatophores forming broad, transverse, rather diffuse bands, less conspicuous on last pleonite; telson and uropods also with some reddish chromatophores; chelipeds creamy-yellowish, tips of major chela fingers pale pinkish; walking legs semitransparent (
<figureCitation id="131A15B3FFEBFF9DFD1384DBD360FC02" box="[729,798,945,971]" captionStart="FIGURE 4" captionStartId="7.[151,250,1529,1554]" captionTargetBox="[151,1436,181,1504]" captionTargetId="figure@7.[151,1436,181,1504]" captionTargetPageId="7" captionText="FIGURE 4. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—living individual shortly after collection, dorsal view; B—same, lateral view (photographs by AA)." httpUri="https://zenodo.org/record/3359130/files/figure.png" pageId="4" pageNumber="79">Fig. 4</figureCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEBFF9DFF0D84BFD348FBDA" blockId="4.[151,1437,153,2015]" pageId="4" pageNumber="79">
<emphasis id="B955D524FFEBFF9DFF0D84BFD136FC26" bold="true" box="[199,328,981,1007]" pageId="4" pageNumber="79">Etymology</emphasis>
. The new species is named after the 
<typeStatus id="549AB794FFEBFF9DFD3E84BFD35AFC26" box="[756,804,981,1007]" pageId="4" pageNumber="79">type</typeStatus>
locality, Las Perlas Archipelago; used as a plural noun (
<taxonomicName id="4C2172B5FFEBFF9DFF6B8493D099FBDA" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[161,231,1017,1043]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="perlas">
<emphasis id="B955D524FFEBFF9DFF6B8493D099FBDA" box="[161,231,1017,1043]" italics="true" pageId="4" pageNumber="79">perlas</emphasis>
</taxonomicName>
, from the Spanish word 
<emphasis id="B955D524FFEBFF9DFE318493D248FBDA" box="[507,566,1017,1043]" italics="true" pageId="4" pageNumber="79">perla</emphasis>
= pearl) in apposition.
</paragraph>
<paragraph id="8B9E0936FFEBFF9DFF0D8377D08BFB6A" blockId="4.[151,1437,153,2015]" pageId="4" pageNumber="79">
<emphasis id="B955D524FFEBFF9DFF0D8377D158FBFE" bold="true" box="[199,294,1053,1079]" pageId="4" pageNumber="79">Ecology</emphasis>
. 
<taxonomicName id="4C2172B5FFEBFF9DFEFE8377D1A5FBFE" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[308,475,1053,1079]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEBFF9DFEFE8377D1A5FBFE" box="[308,475,1053,1079]" italics="true" pageId="4" pageNumber="79">Alpheus perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEBFF9DFE298377D242FBFE" box="[483,572,1053,1079]" pageId="4" pageNumber="79" rank="species">
<emphasis id="B955D524FFEBFF9DFE298377D242FBFE" bold="true" box="[483,572,1053,1079]" pageId="4" pageNumber="79">sp. nov.</emphasis>
</taxonomicNameLabel>
appears to be associated with burrows of unknown hosts on shallow subtidal mudflats. Sympatric burrowing animals collected at the 
<typeStatus id="549AB794FFEBFF9DFCCF832BD34BFB92" box="[773,821,1089,1115]" pageId="4" pageNumber="79">type</typeStatus>
locality included 
<taxonomicName id="4C2172B5FFEBFF9DFC37832BD0ACFBB6" authority="Anker &amp; Pachelle, 2016" authorityName="Anker &amp; Pachelle" authorityYear="2016" class="Malacostraca" family="Laomediidae" genus="Axianassa" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="christyi">
<emphasis id="B955D524FFEBFF9DFC37832BD4B4FB92" box="[1021,1226,1089,1115]" italics="true" pageId="4" pageNumber="79">Axianassa christyi</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFB04832BD0ACFBB6" author="Anker, A. &amp; Pachelle, P. P. G." pageId="4" pageNumber="79" pagination="101 - 125" refId="ref5309" refString="Anker, A. &amp; Pachelle, P. P. G. (2016) Mud-shrimps of the genus Axianassa Schmitt, 1924 from Panama, with description of two new species (Decapoda: Gebiidea: Laomediidae). Zootaxa, 4111 (2), 101 - 125. https: // doi. org / 10.11646 / zootaxa. 4111.2.1" type="journal article" year="2016">Anker &amp; Pachelle, 2016</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEBFF9DFF16830FD1FFFBB6" authorityName="Sakai" authorityYear="1988" box="[220,385,1125,1151]" class="Malacostraca" family="Callianassidae" genus="Neocallichirus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="genus">
<emphasis id="B955D524FFEBFF9DFF16830FD1FFFBB6" box="[220,385,1125,1151]" italics="true" pageId="4" pageNumber="79">Neocallichirus</emphasis>
</taxonomicName>
sp. [in study], as well as several unidentified echiurans (possibly 
<taxonomicName id="4C2172B5FFEBFF9DFB9C830FD494FBB6" box="[1110,1258,1125,1151]" class="Polychaeta" family="Echiuridae" genus="Ochetostoma" higherTaxonomySource="CoL" kingdom="Animalia" order="Echiuroidea" pageId="4" pageNumber="79" phylum="Echiura" rank="genus">
<emphasis id="B955D524FFEBFF9DFB9C830FD494FBB6" box="[1110,1258,1125,1151]" italics="true" pageId="4" pageNumber="79">Ochetostoma</emphasis>
</taxonomicName>
sp. or 
<taxonomicName id="4C2172B5FFEBFF9DFAF8830FD0C0FB6A" class="Polychaeta" family="Echiuridae" genus="Listriolobus" higherTaxonomySource="CoL" kingdom="Animalia" order="Echiuroidea" pageId="4" pageNumber="79" phylum="Echiura" rank="genus">
<emphasis id="B955D524FFEBFF9DFAF8830FD0C0FB6A" italics="true" pageId="4" pageNumber="79">Listriolobus</emphasis>
</taxonomicName>
sp.).
</paragraph>
<paragraph id="8B9E0936FFEBFF9DFF0D83C7D249F92A" blockId="4.[151,1437,153,2015]" pageId="4" pageNumber="79">
<emphasis id="B955D524FFEBFF9DFF0D83C7D14AFB0E" bold="true" box="[199,308,1197,1223]" pageId="4" pageNumber="79">Remarks</emphasis>
. 
<taxonomicName id="4C2172B5FFEBFF9DFE8883C7D194FB0E" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[322,490,1197,1223]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEBFF9DFE8883C7D194FB0E" box="[322,490,1197,1223]" italics="true" pageId="4" pageNumber="79">Alpheus perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEBFF9DFE3B83C7D235FB0E" box="[497,587,1197,1223]" pageId="4" pageNumber="79" rank="species">
<emphasis id="B955D524FFEBFF9DFE3B83C7D235FB0E" bold="true" box="[497,587,1197,1223]" pageId="4" pageNumber="79">sp. nov.</emphasis>
</taxonomicNameLabel>
plainly belongs to the 
<taxonomicName id="4C2172B5FFEBFF9DFC8783C7D3A7FB0E" baseAuthorityName="Audouin" baseAuthorityYear="1826" box="[845,985,1197,1223]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFEBFF9DFC8783C7D3A7FB0E" box="[845,985,1197,1223]" italics="true" pageId="4" pageNumber="79">A. edwardsii</emphasis>
</taxonomicName>
species group, as redefined by 
<bibRefCitation id="EFB074C7FFEBFF9DFAF183C7D17AFB22" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." pageId="4" pageNumber="79" pagination="1 - 23" refId="ref5149" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2009) Description of cryptic taxa within the Alpheus bouvieri A. MilneEdwards, 1878 and A. hebes Kim and Abele, 1988 species complexes (Crustacea: Decapoda: Alpheidae). Zootaxa, 2153, 1 - 23." type="journal article" year="2009">
Anker 
<emphasis id="B955D524FFEBFF9DFA4283C4D0CAFB22" italics="true" pageId="4" pageNumber="79">et al.</emphasis>
(2009)
</bibRefCitation>
for the dorsal notch of the major chela palm extends posteriorly on the mesial face (
<figureCitation id="131A15B3FFEBFF9DFB5583BBD486FB22" box="[1183,1272,1233,1259]" captionStart="FIGURE 2" captionStartId="3.[151,250,1452,1477]" captionTargetBox="[167,1423,188,1420]" captionTargetId="figure@3.[151,1436,181,1427]" captionTargetPageId="3" captionText="FIGURE 2. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—major cheliped, carpus and chela, mesial view; B—same, coxa to proximal portion of palm, lateral view; C—same, carpus and chela, lateral view; D—same, dactylus with plunger, lateral view; E—minor cheliped, lateral view; Fsame, carpus and chela, mesial view." httpUri="https://zenodo.org/record/3359126/files/figure.png" pageId="4" pageNumber="79">Fig. 2A</figureCitation>
). Within the 
<taxonomicName id="4C2172B5FFEBFF9DFA4E83BBD17AFAC6" baseAuthorityName="Audouin" baseAuthorityYear="1826" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFEBFF9DFA4E83BBD17AFAC6" italics="true" pageId="4" pageNumber="79">A. edwardsii</emphasis>
</taxonomicName>
group, the new species belongs to a non-monophyletic assemblage of species, in which (1) the male minor chela is not balaeniceps (= fingers do not possess the so-called “balaeniceps ridges” furnished with rows of densely inserted thick plumose setae); (2) the rostral carina does not form a sharply delimited, V- or U-shaped, flattened post-rostral plate; (3) the ventral shoulder of the major chela is not protruding anteriorly, overhanging the ventral notch; (4) the distoventral margin of the third pereiopod merus is blunt, i.e. not ending in a sharp tooth; and (5) the antepaenultimate article of the third maxilliped is not significantly expanded. In the eastern Pacific, the only species of the 
<taxonomicName id="4C2172B5FFEBFF9DFF1482A7D114FA2E" baseAuthorityName="Audouin" baseAuthorityYear="1826" box="[222,362,1485,1511]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFEBFF9DFF1482A7D114FA2E" box="[222,362,1485,1511]" italics="true" pageId="4" pageNumber="79">A. edwardsii</emphasis>
</taxonomicName>
group that have this combination of characters are: 
<taxonomicName id="4C2172B5FFEBFF9DFC7A82A7D495FA2E" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" box="[944,1259,1485,1511]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEBFF9DFC7A82A7D47BFA2E" box="[944,1029,1485,1511]" italics="true" pageId="4" pageNumber="79">A. latus</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFBC682A7D495FA2E" author="Kim, W. &amp; Abele, L. G." box="[1036,1259,1485,1511]" pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEBFF9DFB3C82A7D1D9F9C2" authority="Anker &amp; Pachelle, 2015" authorityName="Anker &amp; Pachelle" authorityYear="2015" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEBFF9DFB3C82A7D5E2FA2E" box="[1270,1436,1485,1511]" italics="true" pageId="4" pageNumber="79">A. burukovskyi</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFF5D829BD1D9F9C2" author="Anker, A. &amp; Pachelle, P. P. G." box="[151,423,1520,1547]" pageId="4" pageNumber="79" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle, 2015</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEBFF9DFE7B829BD369F9C2" authority="Sivertsen, 1933" authorityName="Sivertsen" authorityYear="1933" box="[433,791,1521,1547]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="galapagensis">
<emphasis id="B955D524FFEBFF9DFE7B829BD21DF9C2" box="[433,611,1521,1547]" italics="true" pageId="4" pageNumber="79">A. galapagensis</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFDA3829BD369F9C2" author="Sivertsen, E." box="[617,791,1521,1547]" pageId="4" pageNumber="79" pagination="1 - 23" refId="ref6423" refString="Sivertsen, E. (1933) The Norwegian Zoological Expedition to the Galapagos Islands 1925, conducted by Alf Wollebaek. VII. Litoral Crustacea Decapoda from the Galapagos Islands. Meddelelser fra det Zoologiske Museum, Oslo, 38, 1 - 23, pls. 1 - 4." type="journal article" year="1933">Sivertsen, 1933</bibRefCitation>
</taxonomicName>
(= 
<taxonomicName id="4C2172B5FFEBFF9DFCF6829BD4F1F9C2" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" box="[828,1167,1521,1547]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="canalis">
<emphasis id="B955D524FFEBFF9DFCF6829BD3D2F9C2" box="[828,940,1521,1547]" italics="true" pageId="4" pageNumber="79">A. canalis</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFC78829BD4F1F9C2" author="Kim, W. &amp; Abele, L. G." box="[946,1167,1521,1547]" pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
), 
<taxonomicName id="4C2172B5FFEBFF9DFB69829BD111F9E6" authority="Anker, Hurt &amp; Knowlton, 2007" authorityName="Anker, Hurt &amp; Knowlton" authorityYear="2007" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="millsae">
<emphasis id="B955D524FFEBFF9DFB69829BD56CF9C2" box="[1187,1298,1521,1547]" italics="true" pageId="4" pageNumber="79">A. millsae</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFADD829BD111F9E6" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." pageId="4" pageNumber="79" pagination="41 - 60" refId="ref5094" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2007) Revision of the Alpheus nuttingi (Schmitt) species complex, with description of a new species from the tropical eastern Pacific (Crustacea: Decapoda: Alpheidae). Zootaxa, 1577, 41 - 60." type="journal article" year="2007">Anker, Hurt &amp; Knowlton, 2007</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEBFF9DFEB6817FD294F9E6" authority="Wicksten, 1983" authorityName="Wicksten" authorityYear="1983" box="[380,746,1557,1583]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="mazatlanicus">
<emphasis id="B955D524FFEBFF9DFEB6817FD24EF9E6" box="[380,560,1557,1583]" italics="true" pageId="4" pageNumber="79">A. mazatlanicus</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFDFD817FD294F9E6" author="Wicksten, M. K." box="[567,746,1557,1583]" pageId="4" pageNumber="79" pagination="1 - 59" refId="ref6475" refString="Wicksten, M. K. (1983) A monograph on the shallow water caridean shrimps of the Gulf of California, Mexico. Alan Hancock Monographs in Marine Biology, 13, 1 - 59." type="journal article" year="1983">Wicksten, 1983</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEBFF9DFD3D817FD41FF9E6" authority="Wicksten, 1988" authorityName="Wicksten" authorityYear="1988" box="[759,1121,1557,1583]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFEBFF9DFD3D817FD3D7F9E6" box="[759,937,1557,1583]" italics="true" pageId="4" pageNumber="79">A. colombiensis</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFC7B817FD41FF9E6" author="Wicksten, M. K." box="[945,1121,1557,1583]" pageId="4" pageNumber="79" pagination="1 - 4" refId="ref6513" refString="Wicksten, M. K. (1988) A new snapping shrimp from the Pacifc coast of Colombia (Decapoda, Caridea, Alpheidae). Crustaceana, 54, 1 - 4. https: // doi. org / 10.1163 / 156854088 X 00564" type="journal article" year="1988">Wicksten, 1988</bibRefCitation>
</taxonomicName>
(= 
<taxonomicName id="4C2172B5FFEBFF9DFB40817FD0ACF99A" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="hamus">
<emphasis id="B955D524FFEBFF9DFB40817FD48AF9E6" box="[1162,1268,1557,1583]" italics="true" pageId="4" pageNumber="79">A. hamus</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFB36817FD0ACF99A" author="Kim, W. &amp; Abele, L. G." pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
), 
<taxonomicName id="4C2172B5FFEBFF9DFF2C8153D180F99A" authority="Ramos, 1997" authorityName="Ramos" authorityYear="1997" box="[230,510,1593,1619]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEBFF9DFF2C8153D11CF99A" box="[230,354,1593,1619]" italics="true" pageId="4" pageNumber="79">A. agrogon</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFEA28153D180F99A" author="Ramos, G. E." box="[360,510,1593,1619]" pageId="4" pageNumber="79" pagination="395 - 400" refId="ref6205" refString="Ramos, G. E. (1997) Alpheus agrogon, a new species of alpheid shrimp (Decapoda: Alpheidae) from Gorgona Island, Pacifc coast of Colombia. Revista de Biologia Tropical, 44 / 45, 395 - 400." type="journal article" year="1997">Ramos, 1997</bibRefCitation>
</taxonomicName>
, and 
<taxonomicName id="4C2172B5FFEBFF9DFDF28153D3D6F99A" authority="Lockington, 1878" authorityName="Lockington" authorityYear="1878" box="[568,936,1593,1619]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="spinicaudus">
<emphasis id="B955D524FFEBFF9DFDF28153D2A2F99A" box="[568,732,1593,1619]" italics="true" pageId="4" pageNumber="79">A. spinicaudus</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFD288153D3D6F99A" author="Lockington, W. N." box="[738,936,1593,1619]" pageId="4" pageNumber="79" pagination="465 - 480" refId="ref6090" refString="Lockington, W. N. (1878) Remarks on some new Alphei, with a synopsis of the North-American species. The Annals and Magazine of Natural History, Series 5, 1 (6), 465 - 480. https: // doi. org / 10.1080 / 00222937808682365" type="journal article" year="1878">Lockington, 1878</bibRefCitation>
</taxonomicName>
[
<emphasis id="B955D524FFEBFF9DFC728150D423F99A" box="[952,1117,1593,1619]" italics="true" pageId="4" pageNumber="79">nomen dubium</emphasis>
] (
<bibRefCitation id="EFB074C7FFEBFF9DFBBE8153D533F99A" author="Kim, W. &amp; Abele, L. G." box="[1140,1357,1593,1619]" pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEBFF9DFA9C8153D16FF9BE" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." pageId="4" pageNumber="79" pagination="41 - 60" refId="ref5094" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2007) Revision of the Alpheus nuttingi (Schmitt) species complex, with description of a new species from the tropical eastern Pacific (Crustacea: Decapoda: Alpheidae). Zootaxa, 1577, 41 - 60." type="journal article" year="2007">
Anker 
<emphasis id="B955D524FFEBFF9DFF5D8134D0B1F9BE" box="[151,207,1629,1655]" italics="true" pageId="4" pageNumber="79">et al.</emphasis>
2007
</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEBFF9DFED18137D259F9BE" author="Anker, A. &amp; Pachelle, P. P. G." box="[283,551,1628,1655]" pageId="4" pageNumber="79" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle 2015</bibRefCitation>
). All other eastern Pacific species of this group can be separated from 
<taxonomicName id="4C2172B5FFEBFF9DFAFD8137D5E2F9BE" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[1335,1436,1629,1655]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEBFF9DFAFD8137D5E2F9BE" box="[1335,1436,1629,1655]" italics="true" pageId="4" pageNumber="79">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEBFF9DFF5D81EBD08FF952" box="[151,241,1665,1691]" pageId="4" pageNumber="79" rank="species">
<emphasis id="B955D524FFEBFF9DFF5D81EBD08FF952" bold="true" box="[151,241,1665,1691]" pageId="4" pageNumber="79">sp. nov.</emphasis>
</taxonomicNameLabel>
by at least one of the five characteristics mentioned above, with most of these taxa having either strongly balaeniceps minor chelae in males or an abruptly delimited post-rostral plate (
<bibRefCitation id="EFB074C7FFEBFF9DFC3E81CFD4B2F976" author="Kim, W. &amp; Abele, L. G." box="[1012,1228,1701,1727]" pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEBFF9DFB1F81CFD0ACF92A" author="Anker, A. &amp; Pachelle, P. P. G." pageId="4" pageNumber="79" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle 2015</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEBFF9DFF1481A3D255F92A" author="Salgado-Barragan, J. &amp; Ayon-Parente, M. &amp; Zamora-Tavares, P." box="[222,555,1737,1763]" pageId="4" pageNumber="79" pagination="131 - 153" refId="ref6302" refString="Salgado-Barragan, J., Ayon-Parente, M. &amp; Zamora-Tavares, P. (2017) New records and description of two new species of caridean shrimps from Bahia Santa Maria - La Reforma lagoon, Gulf of California, Mexico (Crustacea, Caridea, Alpheidae and Processidae). ZooKeys, 671, 131 - 153. https: // doi. org / 10.3897 / zookeys. 671.9081" type="journal article" year="2017">
Salgado-Barragán 
<emphasis id="B955D524FFEBFF9DFE6581A0D199F92A" box="[431,487,1737,1763]" italics="true" pageId="4" pageNumber="79">et al.</emphasis>
2017
</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C33B5ABDFFEBFF9CFF0D8187D525FD4E" lastPageId="5" lastPageNumber="80" pageId="4" pageNumber="79" type="reference_group">
<paragraph id="8B9E0936FFEBFF9CFF0D8187D5F9FED6" blockId="4.[151,1437,153,2015]" lastBlockId="5.[151,1437,152,2016]" lastPageId="5" lastPageNumber="80" pageId="4" pageNumber="79">
<taxonomicName id="4C2172B5FFEBFF9DFF0D8187D238F8CE" ID-CoL="85LKJ" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" box="[199,582,1773,1799]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEBFF9DFF0D8187D121F8CE" box="[199,351,1773,1799]" italics="true" pageId="4" pageNumber="79">Alpheus latus</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFEAD8187D238F8CE" author="Kim, W. &amp; Abele, L. G." box="[359,582,1773,1799]" pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEBFF9DFDB48187D442F8CE" ID-CoL="85LG2" authority="Anker &amp; Pachelle, 2015" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[638,1084,1772,1799]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEBFF9DFDB48187D35BF8CE" box="[638,805,1773,1799]" italics="true" pageId="4" pageNumber="79">A. burukovskyi</emphasis>
<bibRefCitation id="EFB074C7FFEBFF9DFCE18187D442F8CE" author="Anker, A. &amp; Pachelle, P. P. G." box="[811,1084,1772,1799]" pageId="4" pageNumber="79" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle, 2015</bibRefCitation>
</taxonomicName>
are two eastern Pacific species that are superficially most similar to the new species; both are also associated with muddy bottoms (
<bibRefCitation id="EFB074C7FFEBFF9DFAC8807BD0ACF886" author="Kim, W. &amp; Abele, L. G." pageId="4" pageNumber="79" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEBFF9DFF16805FD198F886" author="Anker, A. &amp; Pachelle, P. P. G." box="[220,486,1844,1871]" pageId="4" pageNumber="79" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle 2015</bibRefCitation>
; A. Anker, pers. obs.). However, 
<taxonomicName id="4C2172B5FFEBFF9DFC9D805FD3C2F886" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[855,956,1845,1871]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEBFF9DFC9D805FD3C2F886" box="[855,956,1845,1871]" italics="true" pageId="4" pageNumber="79">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEBFF9DFC09805FD462F886" box="[963,1052,1845,1871]" pageId="4" pageNumber="79" rank="species">
<emphasis id="B955D524FFEBFF9DFC09805FD462F886" bold="true" box="[963,1052,1845,1871]" pageId="4" pageNumber="79">sp. nov.</emphasis>
</taxonomicNameLabel>
differs from each of them by a series of morphological characters. For instance, 
<taxonomicName id="4C2172B5FFEBFF9DFD6A8033D37AF8BA" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[672,772,1881,1907]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEBFF9DFD6A8033D37AF8BA" box="[672,772,1881,1907]" italics="true" pageId="4" pageNumber="79">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEBFF9DFCC08033D31DF8BA" box="[778,867,1881,1907]" pageId="4" pageNumber="79" rank="species">
<emphasis id="B955D524FFEBFF9DFCC08033D31DF8BA" bold="true" box="[778,867,1881,1907]" pageId="4" pageNumber="79">sp. nov.</emphasis>
</taxonomicNameLabel>
differs from 
<taxonomicName id="4C2172B5FFEBFF9DFC398033D436F8BA" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[1011,1096,1881,1907]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEBFF9DFC398033D436F8BA" box="[1011,1096,1881,1907]" italics="true" pageId="4" pageNumber="79">A. latus</emphasis>
</taxonomicName>
by (1) the shorter, less marked rostral carina (vs. longer and more marked in 
<taxonomicName id="4C2172B5FFEBFF9DFD698017D287F85E" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[675,761,1917,1943]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEBFF9DFD698017D287F85E" box="[675,761,1917,1943]" italics="true" pageId="4" pageNumber="79">A. latus</emphasis>
</taxonomicName>
); (2) the shallower adrostral furrows (vs. deeper ones in 
<taxonomicName id="4C2172B5FFEBFF9DFA4E8017D0B3F872" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEBFF9DFA4E8017D0B3F872" italics="true" pageId="4" pageNumber="79">A. latus</emphasis>
</taxonomicName>
); (3) the major chela dactylus rounded (vs. angular in 
<taxonomicName id="4C2172B5FFEBFF9DFCF480CBD3EAF872" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[830,916,1953,1979]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="79" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEBFF9DFCF480CBD3EAF872" box="[830,916,1953,1979]" italics="true" pageId="4" pageNumber="79">A. latus</emphasis>
</taxonomicName>
); (4) the major chela palm with a moderately deep ventral notch, only slightly extending into the mesial surface of the palm (vs. with a deeper notch, more sharply delimited proximally and extending further into the mesial surface of the palm, in 
<taxonomicName id="4C2172B5FFEAFF9CFBEB87F3D40BFF7A" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[1057,1141,153,179]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEAFF9CFBEB87F3D40BFF7A" box="[1057,1141,153,179]" italics="true" pageId="5" pageNumber="80">A. latus</emphasis>
</taxonomicName>
); (5) the minor chela palm stouter, about 1.6 times as long as high (vs. slenderer, almost twice as long as high, in 
<taxonomicName id="4C2172B5FFEAFF9CFBA887D7D4C9FF1E" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[1122,1207,189,215]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEAFF9CFBA887D7D4C9FF1E" box="[1122,1207,189,215]" italics="true" pageId="5" pageNumber="80">A. latus</emphasis>
</taxonomicName>
); (6) the first article of the second pereiopod carpus about four times as long as wide (vs. almost six times in 
<taxonomicName id="4C2172B5FFEAFF9CFBB3878BD4B0FF32" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[1145,1230,225,251]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEAFF9CFBB3878BD4B0FF32" box="[1145,1230,225,251]" italics="true" pageId="5" pageNumber="80">A. latus</emphasis>
</taxonomicName>
); and (7) the third pereiopod dactylus only slightly expanded, subconical (vs. spatulate in 
<taxonomicName id="4C2172B5FFEAFF9CFC7C866FD475FED6" ID-CoL="85LKJ" authorityName="Kim &amp; Abele" authorityYear="1988" box="[950,1035,261,287]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEAFF9CFC7C866FD475FED6" box="[950,1035,261,287]" italics="true" pageId="5" pageNumber="80">A. latus</emphasis>
</taxonomicName>
) (cf. 
<bibRefCitation id="EFB074C7FFEAFF9CFB83866FD55DFED6" author="Kim, W. &amp; Abele, L. G." box="[1097,1315,261,287]" pageId="5" pageNumber="80" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 37).
</paragraph>
<paragraph id="8B9E0936FFEAFF9CFF0D8643D525FD4E" blockId="5.[151,1437,152,2016]" pageId="5" pageNumber="80">
Similarly, 
<taxonomicName id="4C2172B5FFEAFF9CFEF18643D1DEFE8A" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[315,416,297,323]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEAFF9CFEF18643D1DEFE8A" box="[315,416,297,323]" italics="true" pageId="5" pageNumber="80">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEAFF9CFE6C8643D27EFE8A" box="[422,512,297,323]" pageId="5" pageNumber="80" rank="species">
<emphasis id="B955D524FFEAFF9CFE6C8643D27EFE8A" bold="true" box="[422,512,297,323]" pageId="5" pageNumber="80">sp. nov.</emphasis>
</taxonomicNameLabel>
differs from 
<taxonomicName id="4C2172B5FFEAFF9CFD588643D346FE8A" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[658,824,297,323]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFD588643D346FE8A" box="[658,824,297,323]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
by (1) the distinctly longer second article of the antennular peduncle, about 1.7 times as long as wide (vs. shorter, about 1.3 times as long as wide, in 
<taxonomicName id="4C2172B5FFEAFF9CFB298627D5F5FEAE" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[1251,1419,333,359]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFB298627D5F5FEAE" box="[1251,1419,333,359]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
); (2) the scaphocerite not reaching the distal margin of the antennular peduncle (vs. slightly overreaching it in 
<taxonomicName id="4C2172B5FFEAFF9CFA4E861BD160FE66" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFA4E861BD160FE66" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
); (3) the penultimate article of the third maxilliped without elongate thickened setae on its mesial surface (vs. with these setae in 
<taxonomicName id="4C2172B5FFEAFF9CFE1D86D3D200FE1A" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[471,638,441,467]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFE1D86D3D200FE1A" box="[471,638,441,467]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
); (4) the dactylus plunger of the major chela very short, subtriangular, distally truncate, with the anterior angle not well marked, not at the same level as the posterior angle (vs. much more robust, longer, more square-shaped, not truncate distally, with the anterior angle well marked, at the same level as the posterior angle, in 
<taxonomicName id="4C2172B5FFEAFF9CFE53854FD23FFDF6" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[409,577,549,575]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFE53854FD23FFDF6" box="[409,577,549,575]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
); (5) the posterior margin of the telson without row of spiniform setae (vs. with spiniform setae in 
<taxonomicName id="4C2172B5FFEAFF9CFE6A8523D239FDAA" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[416,583,585,611]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFE6A8523D239FDAA" box="[416,583,585,611]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
); and (6) the uropodal endopod with just a few spiniform setae on the distal margin (vs. with a complete row of spiniform setae in 
<taxonomicName id="4C2172B5FFEAFF9CFD328507D3E8FD4E" ID-CoL="85LG2" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[760,918,621,647]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFD328507D3E8FD4E" box="[760,918,621,647]" italics="true" pageId="5" pageNumber="80">A burukovskyi</emphasis>
</taxonomicName>
) (cf. 
<bibRefCitation id="EFB074C7FFEAFF9CFC188507D4A0FD4E" author="Anker, A. &amp; Pachelle, P. P. G." box="[978,1246,620,647]" pageId="5" pageNumber="80" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle 2015</bibRefCitation>
: figs. 1, 2).
</paragraph>
</subSubSection>
<subSubSection id="C33B5ABDFFEAFF9CFF0D85FBD51FFD3A" pageId="5" pageNumber="80" type="description">
<paragraph id="8B9E0936FFEAFF9CFF0D85FBD51FFD3A" blockId="5.[151,1437,152,2016]" pageId="5" pageNumber="80">
In addition, 
<taxonomicName id="4C2172B5FFEAFF9CFE9A85FBD1C8FD62" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[336,438,657,683]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEAFF9CFE9A85FBD1C8FD62" box="[336,438,657,683]" italics="true" pageId="5" pageNumber="80">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEAFF9CFE7785FBD269FD62" box="[445,535,657,683]" pageId="5" pageNumber="80" rank="species">
<emphasis id="B955D524FFEAFF9CFE7785FBD269FD62" bold="true" box="[445,535,657,683]" pageId="5" pageNumber="80">sp. nov.</emphasis>
</taxonomicNameLabel>
differs from both 
<taxonomicName id="4C2172B5FFEAFF9CFD2C85FBD345FD62" authorityName="Kim &amp; Abele" authorityYear="1988" box="[742,827,657,683]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEAFF9CFD2C85FBD345FD62" box="[742,827,657,683]" italics="true" pageId="5" pageNumber="80">A. latus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFCB985FBD464FD62" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[883,1050,657,683]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFCB985FBD464FD62" box="[883,1050,657,683]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
by its bland, pale-yellow and reddish-banded colour pattern, contrasting to the much darker olive-greenish colouration of 
<taxonomicName id="4C2172B5FFEAFF9CFBBF85DFD4B4FD06" authorityName="Kim &amp; Abele" authorityYear="1988" box="[1141,1226,693,719]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="latus">
<emphasis id="B955D524FFEAFF9CFBBF85DFD4B4FD06" box="[1141,1226,693,719]" italics="true" pageId="5" pageNumber="80">A. latus</emphasis>
</taxonomicName>
(A. Anker, unpublished data) and the uniform bright red-orange colouration of 
<taxonomicName id="4C2172B5FFEAFF9CFC8385B3D391FD3A" authorityName="Anker &amp; Pachelle" authorityYear="2015" box="[841,1007,729,755]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="burukovskyi">
<emphasis id="B955D524FFEAFF9CFC8385B3D391FD3A" box="[841,1007,729,755]" italics="true" pageId="5" pageNumber="80">A. burukovskyi</emphasis>
</taxonomicName>
(
<bibRefCitation id="EFB074C7FFEAFF9CFC3485B3D575FD3A" author="Anker, A. &amp; Pachelle, P. P. G." box="[1022,1291,728,755]" pageId="5" pageNumber="80" pagination="247 - 258" refId="ref5265" refString="Anker, A. &amp; Pachelle, P. P. G. (2015) Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific. Arthropoda Selecta, 24, 247 - 258." type="journal article" year="2015">Anker &amp; Pachelle 2015</bibRefCitation>
: fig. 3).
</paragraph>
</subSubSection>
<subSubSection id="C33B5ABDFFEAFF9CFF0D8597D548FBB6" pageId="5" pageNumber="80" type="reference_group">
<paragraph id="8B9E0936FFEAFF9CFF0D8597D548FBB6" blockId="5.[151,1437,152,2016]" pageId="5" pageNumber="80">
<taxonomicName id="4C2172B5FFEAFF9CFF0D8597D111FCDE" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[199,367,765,791]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEAFF9CFF0D8597D111FCDE" box="[199,367,765,791]" italics="true" pageId="5" pageNumber="80">Alpheus perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEAFF9CFEBD8597D1AFFCDE" box="[375,465,765,791]" pageId="5" pageNumber="80" rank="species">
<emphasis id="B955D524FFEAFF9CFEBD8597D1AFFCDE" bold="true" box="[375,465,765,791]" pageId="5" pageNumber="80">sp. nov.</emphasis>
</taxonomicNameLabel>
is not closely related to 
<taxonomicName id="4C2172B5FFEAFF9CFD2D8597D3E5FCDE" ID-CoL="85LJ3" authorityName="Sivertsen" authorityYear="1933" box="[743,923,765,791]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="galapagensis">
<emphasis id="B955D524FFEAFF9CFD2D8597D3E5FCDE" box="[743,923,765,791]" italics="true" pageId="5" pageNumber="80">A. galapagensis</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEAFF9CFC638597D464FCDE" ID-CoL="85LLN" authorityName="Anker, Hurt &amp; Knowlton" authorityYear="2007" box="[937,1050,765,791]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="millsae">
<emphasis id="B955D524FFEAFF9CFC638597D464FCDE" box="[937,1050,765,791]" italics="true" pageId="5" pageNumber="80">A. millsae</emphasis>
</taxonomicName>
, 
<emphasis id="B955D524FFEAFF9CFBE28597D5E2FCDE" box="[1064,1436,765,791]" italics="true" pageId="5" pageNumber="80">
<taxonomicName id="4C2172B5FFEAFF9CFBE28597D4A1FCDE" ID-CoL="85LLG" authorityName="Wicksten" authorityYear="1983" box="[1064,1247,765,791]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="mazatlanicus">A. mazatlanicus</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEAFF9CFB208597D5E2FCDE" ID-CoL="85LGH" authorityName="Wicksten" authorityYear="1988" box="[1258,1436,765,791]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="colombiensis">A. colombiensis</taxonomicName>
</emphasis>
and 
<taxonomicName id="4C2172B5FFEAFF9CFF0D844BD13AFCF2" ID-CoL="85LDM" authorityName="Ramos" authorityYear="1997" box="[199,324,801,827]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFF0D844BD13AFCF2" box="[199,324,801,827]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
, differing from each of them by a great number morphological characters, mainly on (1) the frontal region of the carapace (e.g. both 
<taxonomicName id="4C2172B5FFEAFF9CFDC2842FD2C5FC96" ID-CoL="85LJ3" authorityName="Sivertsen" authorityYear="1933" box="[520,699,837,863]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="galapagensis">
<emphasis id="B955D524FFEAFF9CFDC2842FD2C5FC96" box="[520,699,837,863]" italics="true" pageId="5" pageNumber="80">A. galapagensis</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFD3B842FD31FFC96" ID-CoL="85LLN" authorityName="Anker, Hurt &amp; Knowlton" authorityYear="2007" box="[753,865,837,863]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="millsae">
<emphasis id="B955D524FFEAFF9CFD3B842FD31FFC96" box="[753,865,837,863]" italics="true" pageId="5" pageNumber="80">A. millsae</emphasis>
</taxonomicName>
with a strong sharp rostral carina, 
<taxonomicName id="4C2172B5FFEAFF9CFB2C842FD51AFC96" ID-CoL="85LDM" authorityName="Ramos" authorityYear="1997" box="[1254,1380,837,863]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFB2C842FD51AFC96" box="[1254,1380,837,863]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
with a short post-rostral crest, see below); (2) the major chela (e.g., 
<taxonomicName id="4C2172B5FFEAFF9CFC848403D47EFC4A" ID-CoL="85LJ3" authorityName="Sivertsen" authorityYear="1933" box="[846,1024,873,899]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="galapagensis">
<emphasis id="B955D524FFEAFF9CFC848403D47EFC4A" box="[846,1024,873,899]" italics="true" pageId="5" pageNumber="80">A. galapagensis</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFBFF8403D4DBFC4A" ID-CoL="85LLN" authorityName="Anker, Hurt &amp; Knowlton" authorityYear="2007" box="[1077,1189,873,899]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="millsae">
<emphasis id="B955D524FFEAFF9CFBFF8403D4DBFC4A" box="[1077,1189,873,899]" italics="true" pageId="5" pageNumber="80">A. millsae</emphasis>
</taxonomicName>
both with a very stout dactylus plunger, 
<taxonomicName id="4C2172B5FFEAFF9CFE9484E7D26CFC6E" ID-CoL="85LLG" authorityName="Wicksten" authorityYear="1983" box="[350,530,909,935]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="mazatlanicus">
<emphasis id="B955D524FFEAFF9CFE9484E7D26CFC6E" box="[350,530,909,935]" italics="true" pageId="5" pageNumber="80">A. mazatlanicus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFD8284E7D284FC6E" ID-CoL="85LGH" authorityName="Wicksten" authorityYear="1988" box="[584,762,909,935]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFEAFF9CFD8284E7D284FC6E" box="[584,762,909,935]" italics="true" pageId="5" pageNumber="80">A. colombiensis</emphasis>
</taxonomicName>
both with the distally angular dactylus, 
<taxonomicName id="4C2172B5FFEAFF9CFB7784E7D544FC6E" ID-CoL="85LDM" authorityName="Ramos" authorityYear="1997" box="[1213,1338,909,935]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFB7784E7D544FC6E" box="[1213,1338,909,935]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
with the major chela dactylus reaching well beyond the pollex); (3) the minor chela (especially 
<taxonomicName id="4C2172B5FFEAFF9CFBA784DBD55FFC02" ID-CoL="85LLG" authorityName="Wicksten" authorityYear="1983" box="[1133,1313,945,971]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="mazatlanicus">
<emphasis id="B955D524FFEAFF9CFBA784DBD55FFC02" box="[1133,1313,945,971]" italics="true" pageId="5" pageNumber="80">A. mazatlanicus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFA9384DBD171FC26" ID-CoL="85LGH" authorityName="Wicksten" authorityYear="1988" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFEAFF9CFA9384DBD171FC26" italics="true" pageId="5" pageNumber="80">A. colombiensis</emphasis>
</taxonomicName>
, both with elongate fingers of the minor chela); and (4) the third pereiopod (especially 
<taxonomicName id="4C2172B5FFEAFF9CFB2384BFD5E2FC26" ID-CoL="85LLG" authorityName="Wicksten" authorityYear="1983" box="[1257,1436,981,1007]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="mazatlanicus">
<emphasis id="B955D524FFEAFF9CFB2384BFD5E2FC26" box="[1257,1436,981,1007]" italics="true" pageId="5" pageNumber="80">A. mazatlanicus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFF0D8493D106FBDA" ID-CoL="85LGH" authorityName="Wicksten" authorityYear="1988" box="[199,376,1017,1043]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFEAFF9CFF0D8493D106FBDA" box="[199,376,1017,1043]" italics="true" pageId="5" pageNumber="80">A. colombiensis</emphasis>
</taxonomicName>
, both with spatulate dactyli (cf. 
<bibRefCitation id="EFB074C7FFEAFF9CFD288493D3F3FBDA" author="Wicksten, M. K." box="[738,909,1017,1043]" pageId="5" pageNumber="80" pagination="1 - 4" refId="ref6513" refString="Wicksten, M. K. (1988) A new snapping shrimp from the Pacifc coast of Colombia (Decapoda, Caridea, Alpheidae). Crustaceana, 54, 1 - 4. https: // doi. org / 10.1163 / 156854088 X 00564" type="journal article" year="1988">Wicksten 1988</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFC528493D40FFBDA" author="Kim, W. &amp; Abele, L. G." box="[920,1137,1017,1043]" pageId="5" pageNumber="80" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFBB78493D573FBDA" author="Ramos, G. E." box="[1149,1293,1017,1043]" pageId="5" pageNumber="80" pagination="395 - 400" refId="ref6205" refString="Ramos, G. E. (1997) Alpheus agrogon, a new species of alpheid shrimp (Decapoda: Alpheidae) from Gorgona Island, Pacifc coast of Colombia. Revista de Biologia Tropical, 44 / 45, 395 - 400." type="journal article" year="1997">Ramos 1997</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFADD8493D0AAFBFE" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." pageId="5" pageNumber="80" pagination="41 - 60" refId="ref5094" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2007) Revision of the Alpheus nuttingi (Schmitt) species complex, with description of a new species from the tropical eastern Pacific (Crustacea: Decapoda: Alpheidae). Zootaxa, 1577, 41 - 60." type="journal article" year="2007">
Anker 
<emphasis id="B955D524FFEAFF9CFAAE8490D5E3FBDA" box="[1380,1437,1017,1043]" italics="true" pageId="5" pageNumber="80">et al.</emphasis>
2007
</bibRefCitation>
). The new species also differs from 
<taxonomicName id="4C2172B5FFEAFF9CFDA48377D35CFBFE" ID-CoL="85LJ3" authorityName="Sivertsen" authorityYear="1933" box="[622,802,1053,1079]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="galapagensis">
<emphasis id="B955D524FFEAFF9CFDA48377D35CFBFE" box="[622,802,1053,1079]" italics="true" pageId="5" pageNumber="80">A. galapagensis</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEAFF9CFCFB8377D3DCFBFE" ID-CoL="85LLN" authorityName="Anker, Hurt &amp; Knowlton" authorityYear="2007" box="[817,930,1053,1079]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="millsae">
<emphasis id="B955D524FFEAFF9CFCFB8377D3DCFBFE" box="[817,930,1053,1079]" italics="true" pageId="5" pageNumber="80">A. millsae</emphasis>
</taxonomicName>
, 
<emphasis id="B955D524FFEAFF9CFC7B8377D415FBFE" box="[945,1131,1053,1079]" italics="true" pageId="5" pageNumber="80">
<taxonomicName id="4C2172B5FFEAFF9CFC7B8377D416FBFE" ID-CoL="85LLG" authorityName="Wicksten" authorityYear="1983" box="[945,1128,1053,1079]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="mazatlanicus">A. mazatlanicus</taxonomicName>
,
</emphasis>
and 
<taxonomicName id="4C2172B5FFEAFF9CFB6E8377D528FBFE" ID-CoL="85LGH" authorityName="Wicksten" authorityYear="1988" box="[1188,1366,1053,1079]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFEAFF9CFB6E8377D528FBFE" box="[1188,1366,1053,1079]" italics="true" pageId="5" pageNumber="80">A. colombiensis</emphasis>
</taxonomicName>
by its colour pattern (cf. 
<bibRefCitation id="EFB074C7FFEAFF9CFEAC832BD253FB92" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." box="[358,557,1089,1115]" pageId="5" pageNumber="80" pagination="41 - 60" refId="ref5094" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2007) Revision of the Alpheus nuttingi (Schmitt) species complex, with description of a new species from the tropical eastern Pacific (Crustacea: Decapoda: Alpheidae). Zootaxa, 1577, 41 - 60." type="journal article" year="2007">
Anker 
<emphasis id="B955D524FFEAFF9CFE788328D194FB92" box="[434,490,1089,1115]" italics="true" pageId="5" pageNumber="80">et al.</emphasis>
2007
</bibRefCitation>
: fig. 7, for colour patterns of 
<taxonomicName id="4C2172B5FFEAFF9CFCBE832BD459FB92" ID-CoL="85LJ3" authorityName="Sivertsen" authorityYear="1933" box="[884,1063,1089,1115]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="galapagensis">
<emphasis id="B955D524FFEAFF9CFCBE832BD459FB92" box="[884,1063,1089,1115]" italics="true" pageId="5" pageNumber="80">A. galapagensis</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFB97832BD4B3FB92" ID-CoL="85LLN" authorityName="Anker, Hurt &amp; Knowlton" authorityYear="2007" box="[1117,1229,1089,1115]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="millsae">
<emphasis id="B955D524FFEAFF9CFB97832BD4B3FB92" box="[1117,1229,1089,1115]" italics="true" pageId="5" pageNumber="80">A. millsae</emphasis>
</taxonomicName>
; A. Anker, unpublished data, for 
<taxonomicName id="4C2172B5FFEAFF9CFE8F830FD186FBB6" ID-CoL="85LLG" authorityName="Wicksten" authorityYear="1983" box="[325,504,1125,1151]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="mazatlanicus">
<emphasis id="B955D524FFEAFF9CFE8F830FD186FBB6" box="[325,504,1125,1151]" italics="true" pageId="5" pageNumber="80">A. mazatlanicus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFDE4830FD2A1FBB6" ID-CoL="85LGH" authorityName="Wicksten" authorityYear="1988" box="[558,735,1125,1151]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFEAFF9CFDE4830FD2A1FBB6" box="[558,735,1125,1151]" italics="true" pageId="5" pageNumber="80">A. colombiensis</emphasis>
</taxonomicName>
); the colour pattern of 
<taxonomicName id="4C2172B5FFEAFF9CFC28830FD421FBB6" ID-CoL="85LDM" authorityName="Ramos" authorityYear="1997" box="[994,1119,1125,1151]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFC28830FD421FBB6" box="[994,1119,1125,1151]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
remains unknown.
</paragraph>
</subSubSection>
<subSubSection id="C33B5ABDFFEAFF9CFF0D83E3D566FA2E" pageId="5" pageNumber="80" type="materials_examined">
<paragraph id="8B9E0936FFEAFF9CFF0D83E3D566FA2E" blockId="5.[151,1437,152,2016]" pageId="5" pageNumber="80">
It must be noted here that Ramos’ (1997) description of 
<taxonomicName id="4C2172B5FFEAFF9CFCE783E3D3D7FB6A" authorityName="Ramos" authorityYear="1997" box="[813,937,1161,1187]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFCE783E3D3D7FB6A" box="[813,937,1161,1187]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
contains some inaccuracies, especially in the illustration of the rostro-orbital area of the carapace. 
<bibRefCitation id="EFB074C7FFEAFF9CFD2383C7D3FAFB0E" author="Ramos, G. E." box="[745,900,1197,1223]" pageId="5" pageNumber="80" pagination="395 - 400" refId="ref6205" refString="Ramos, G. E. (1997) Alpheus agrogon, a new species of alpheid shrimp (Decapoda: Alpheidae) from Gorgona Island, Pacifc coast of Colombia. Revista de Biologia Tropical, 44 / 45, 395 - 400." type="journal article" year="1997">Ramos (1997</bibRefCitation>
: fig. 1B) illustrated an interrupted rostral carina followed by a V-shaped post-rostral plate, similar to the configuration seen in some species of the 
<taxonomicName id="4C2172B5FFEAFF9CFAC283BBD5E2FB22" authorityName="H. Milne-Edwards" authorityYear="1837" box="[1288,1436,1233,1259]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="armillatus">
<emphasis id="B955D524FFEAFF9CFAC283BBD5E2FB22" box="[1288,1436,1233,1259]" italics="true" pageId="5" pageNumber="80">A. armillatus</emphasis>
</taxonomicName>
complex. The first author (AA) examined the 
<typeStatus id="549AB794FFEAFF9CFD5B839FD28DFAC6" box="[657,755,1269,1295]" pageId="5" pageNumber="80" type="holotype">holotype</typeStatus>
and the only known specimen of 
<taxonomicName id="4C2172B5FFEAFF9CFBAF839FD49FFAC6" authorityName="Ramos" authorityYear="1997" box="[1125,1249,1269,1295]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFBAF839FD49FFAC6" box="[1125,1249,1269,1295]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
, deposited in the National Museum of Natural History, Smithsonian Institution, 
<collectingRegion id="49E5C7D4FFEAFF9CFC928273D470FAFA" box="[856,1038,1305,1331]" country="United States of America" name="District of Columbia" pageId="5" pageNumber="80">Washington DC</collectingRegion>
, 
<collectingCountry id="F33649A6FFEAFF9CFBD08273D42EFAFA" box="[1050,1104,1305,1331]" name="United States of America" pageId="5" pageNumber="80">USA</collectingCountry>
(
<collectionCode id="ED3091F3FFEAFF9CFB958273D4C8FAFA" box="[1119,1206,1305,1331]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="5" pageNumber="80" type="Museum">USNM</collectionCode>
). The 
<typeStatus id="549AB794FFEAFF9CFB368273D520FAFA" box="[1276,1374,1305,1331]" pageId="5" pageNumber="80" type="holotype">holotype</typeStatus>
of 
<taxonomicName id="4C2172B5FFEAFF9CFA4E8273D08BFA9E" authorityName="Ramos" authorityYear="1997" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFA4E8273D08BFA9E" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
indeed has a marked rostral carina interrupted between the orbital hoods, i.e. separating the proper rostral carina from a short post-rostral (in fact, post-orbital) crest, gradually flattening posteriorly; however, it does not possess a triangular V-shaped plate, as figured by 
<bibRefCitation id="EFB074C7FFEAFF9CFD0A82EFD327FA56" author="Ramos, G. E." box="[704,857,1413,1439]" pageId="5" pageNumber="80" pagination="395 - 400" refId="ref6205" refString="Ramos, G. E. (1997) Alpheus agrogon, a new species of alpheid shrimp (Decapoda: Alpheidae) from Gorgona Island, Pacifc coast of Colombia. Revista de Biologia Tropical, 44 / 45, 395 - 400." type="journal article" year="1997">Ramos (1997</bibRefCitation>
: fig. 1B). Collection of more material in the shallow intertidal areas of Gorgona Island off 
<collectingCountry id="F33649A6FFEAFF9CFD8F82C3D2C8FA0A" box="[581,694,1449,1475]" name="Colombia" pageId="5" pageNumber="80">Colombia</collectingCountry>
, the type locality of 
<taxonomicName id="4C2172B5FFEAFF9CFC6882C3D45EFA0A" authorityName="Ramos" authorityYear="1997" box="[930,1056,1449,1475]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="agrogon">
<emphasis id="B955D524FFEAFF9CFC6882C3D45EFA0A" box="[930,1056,1449,1475]" italics="true" pageId="5" pageNumber="80">A. agrogon</emphasis>
</taxonomicName>
, will be necessary to confirm the validity and uniqueness of this character and to elucidate the phylogenetic relationships of this species.
</paragraph>
</subSubSection>
<subSubSection id="C33B5ABDFFEAFF9FFF0D829BD112FE1A" lastPageId="6" lastPageNumber="81" pageId="5" pageNumber="80" type="reference_group">
<paragraph id="8B9E0936FFEAFF9CFF0D829BD30FF8CE" blockId="5.[151,1437,152,2016]" pageId="5" pageNumber="80">
<taxonomicName id="4C2172B5FFEAFF9CFF0D829BD202F9C2" authority="Lockington, 1878" authorityName="Lockington" authorityYear="1878" box="[199,636,1521,1547]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="spinicaudus">
<emphasis id="B955D524FFEAFF9CFF0D829BD1D0F9C2" box="[199,430,1521,1547]" italics="true" pageId="5" pageNumber="80">Alpheus spinicaudus</emphasis>
<bibRefCitation id="EFB074C7FFEAFF9CFE7F829BD202F9C2" author="Lockington, W. N." box="[437,636,1521,1547]" pageId="5" pageNumber="80" pagination="465 - 480" refId="ref6090" refString="Lockington, W. N. (1878) Remarks on some new Alphei, with a synopsis of the North-American species. The Annals and Magazine of Natural History, Series 5, 1 (6), 465 - 480. https: // doi. org / 10.1080 / 00222937808682365" type="journal article" year="1878">Lockington, 1878</bibRefCitation>
</taxonomicName>
from the Gulf of 
<collectingRegion id="49E5C7D4FFEAFF9CFC88829BD3C8F9C2" box="[834,950,1521,1547]" country="United States of America" name="California" pageId="5" pageNumber="80">California</collectingRegion>
, known only from its extremely inadequate original description by 
<bibRefCitation id="EFB074C7FFEAFF9CFE53817FD212F9E6" author="Lockington, W. N." box="[409,620,1557,1583]" pageId="5" pageNumber="80" pagination="465 - 480" refId="ref6090" refString="Lockington, W. N. (1878) Remarks on some new Alphei, with a synopsis of the North-American species. The Annals and Magazine of Natural History, Series 5, 1 (6), 465 - 480. https: // doi. org / 10.1080 / 00222937808682365" type="journal article" year="1878">Lockington (1878)</bibRefCitation>
, was listed as a 
<emphasis id="B955D524FFEAFF9CFCD1817CD3BEF9E6" box="[795,960,1557,1583]" italics="true" pageId="5" pageNumber="80">nomen dubium</emphasis>
by 
<bibRefCitation id="EFB074C7FFEAFF9CFC22817FD55EF9E6" author="De Grave, S. &amp; Fransen, C. H. J. M." box="[1000,1312,1557,1583]" pageId="5" pageNumber="80" pagination="195 - 589" refId="ref5764" refString="De Grave, S. &amp; Fransen, C. H. J. M. (2011) Carideorum catalogus: the recent species of the dendrobranchiate, stenopodidean, procarididean and caridean shrimps (Crustacea: Decapoda). Zoologische Mededelingen, 89, 195 - 589." type="journal article" year="2011">De Grave &amp; Fransen (2011)</bibRefCitation>
. The major chela of this species was described as having a short dactylus, “moving obliquely”, whereas the posterior margin of the telson was described as bearing “posterior spinules” (
<bibRefCitation id="EFB074C7FFEAFF9CFC8B8137D476F9BE" author="Lockington, W. N." box="[833,1032,1629,1655]" pageId="5" pageNumber="80" pagination="465 - 480" refId="ref6090" refString="Lockington, W. N. (1878) Remarks on some new Alphei, with a synopsis of the North-American species. The Annals and Magazine of Natural History, Series 5, 1 (6), 465 - 480. https: // doi. org / 10.1080 / 00222937808682365" type="journal article" year="1878">Lockington 1878</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFBDF8137D48DF9BE" author="Kim, W. &amp; Abele, L. G." box="[1045,1267,1629,1655]" pageId="5" pageNumber="80" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
); both of these features are not observed in 
<taxonomicName id="4C2172B5FFEAFF9CFE1B81EBD248F952" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[465,566,1665,1691]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEAFF9CFE1B81EBD248F952" box="[465,566,1665,1691]" italics="true" pageId="5" pageNumber="80">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEAFF9CFDF681EBD2EBF952" box="[572,661,1665,1691]" pageId="5" pageNumber="80" rank="species">
<emphasis id="B955D524FFEAFF9CFDF681EBD2EBF952" bold="true" box="[572,661,1665,1691]" pageId="5" pageNumber="80">sp. nov.</emphasis>
</taxonomicNameLabel>
Importantly, the obliquely moving major chela dactylus is more typical to the members of the 
<taxonomicName id="4C2172B5FFEAFF9CFE7481CFD35AF976" ID-CoL="84W8H" authority="Hailstone, 1835" authorityName="Hailstone" authorityYear="1835" box="[446,804,1700,1727]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="B955D524FFEAFF9CFE7481CFD214F976" box="[446,618,1701,1727]" italics="true" pageId="5" pageNumber="80">A. macrocheles</emphasis>
<bibRefCitation id="EFB074C7FFEAFF9CFDB881CFD35AF976" author="Hailstone, S." box="[626,804,1700,1727]" pageId="5" pageNumber="80" pagination="394 - 395" refId="ref5993" refString="Hailstone, S. (1835) The species of crustaceous animals discovered and described by Mr. Hailstone, and illustrated and annotated upon by Mr. Westwood. Annals and Magazine of Natural History, 8, 394 - 395." type="journal article" year="1835">Hailstone, 1835</bibRefCitation>
</taxonomicName>
species group (
<bibRefCitation id="EFB074C7FFEAFF9CFC1E81CFD407F976" author="Coutiere, H." box="[980,1145,1701,1727]" pageId="5" pageNumber="80" pagination="1 - 559" refId="ref5597" refString="Coutiere, H. (1899) Les Alpheidae. Morphologie externe et interne, formes larvaires, bionomie. Annales des Sciences Naturelles, Zoologie et Paleontologie, 8, 9, 1 - 559, pls. 1 - 6. [Masson, Paris] https: // doi. org / 10.5962 / bhl. title. 13143" type="journal article" year="1899">Coutière 1899</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFB4F81CFD5EEF976" author="Banner, D. M. &amp; Banner, A. H." box="[1157,1424,1701,1727]" pageId="5" pageNumber="80" pagination="1 - 357" refId="ref5532" refString="Banner, D. M. &amp; Banner, A. H. (1982) The alpheid shrimp of Australia, part III: the remaining alpheids, principally the genus Alpheus, and the family Ogyrididae. Records of the Australian Museum, 34, 1 - 357. https: // doi. org / 10.3853 / j. 0067 - 1975.34.1982.434" type="journal article" year="1982">Banner &amp; Banner 1982</bibRefCitation>
). Unfortunately, Lockington’s alpheid specimens were lost in the fire of the old 
<collectingRegion id="49E5C7D4FFEAFF9CFBE381A3D4E5F92A" box="[1065,1179,1737,1763]" country="United States of America" name="California" pageId="5" pageNumber="80">California</collectingRegion>
Academy of Sciences building following a major earthquake, in 1906 (
<bibRefCitation id="EFB074C7FFEAFF9CFD7D8187D31BF8CE" author="Wicksten, M. K." box="[695,869,1773,1799]" pageId="5" pageNumber="80" pagination="118 - 126" refId="ref6560" refString="Wicksten, M. K. (1994) On the identity of snapping shrimp described and identified by W. N. Lockington, 1878. Bulletin of the Southern California Academy of Sciences, 93, 118 - 126." type="journal article" year="1994">Wicksten 1994</bibRefCitation>
).
</paragraph>
<paragraph id="8B9E0936FFEAFF9FFF0D807BD112FE1A" blockId="5.[151,1437,152,2016]" lastBlockId="6.[151,1437,152,720]" lastPageId="6" lastPageNumber="81" pageId="5" pageNumber="80">
None of the Atlantic species of the 
<taxonomicName id="4C2172B5FFEAFF9CFD94807BD295F8E2" ID-CoL="84W7L" baseAuthorityName="Audouin" baseAuthorityYear="1826" box="[606,747,1809,1835]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFEAFF9CFD94807BD295F8E2" box="[606,747,1809,1835]" italics="true" pageId="5" pageNumber="80">A. edwardsii</emphasis>
</taxonomicName>
group with the five characteristics mentioned above, e.g. 
<taxonomicName id="4C2172B5FFEAFF9CFA4E807BD1D5F886" ID-CoL="84W9M" authority="Armstrong 1949" authorityName="Armstrong" authorityYear="1949" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="viridari">
<emphasis id="B955D524FFEAFF9CFA4E807BD093F886" italics="true" pageId="5" pageNumber="80">A. viridari</emphasis>
<bibRefCitation id="EFB074C7FFEAFF9CFF3B805FD1D5F886" author="Armstrong, J. C." box="[241,427,1845,1871]" pageId="5" pageNumber="80" pagination="1 - 27" refId="ref5373" refString="Armstrong, J. C. (1949) New Caridea from the Dominican Republic. American Museum Novitates, 1410, 1 - 27." type="journal article" year="1949">Armstrong 1949</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C2172B5FFEAFF9CFE7F805FD2A0F886" ID-CoL="84W8M" authority="(Schmitt, 1924)" authorityName="Schmitt" authorityYear="1924" baseAuthorityName="Schmitt" baseAuthorityYear="1924" box="[437,734,1845,1871]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="nuttingi">
<emphasis id="B955D524FFEAFF9CFE7F805FD254F886" box="[437,554,1845,1871]" italics="true" pageId="5" pageNumber="80">A. nuttingi</emphasis>
(
<bibRefCitation id="EFB074C7FFEAFF9CFDFD805FD2A8F886" author="Schmitt, W. L." box="[567,726,1845,1871]" pageId="5" pageNumber="80" pagination="65 - 99" refId="ref6374" refString="Schmitt, W. L. (1924) Report on Macrura, Anomura and Stomatopoda collected by the Barbados-Antigua Expedition from the University of Iowa in 1918. Studies of Natural History, Iowa University, 10, 65 - 99, pls. 1 - 5." type="journal article" year="1924">Schmitt, 1924</bibRefCitation>
)
</taxonomicName>
and 
<taxonomicName id="4C2172B5FFEAFF9CFCD8805FD4DDF886" ID-CoL="84W7N" authority="Christoffersen, 1984" authorityName="Christoffersen" authorityYear="1984" box="[786,1187,1845,1871]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="estuariensis">
<emphasis id="B955D524FFEAFF9CFCD8805FD3C8F886" box="[786,950,1845,1871]" italics="true" pageId="5" pageNumber="80">A. estuariensis</emphasis>
<bibRefCitation id="EFB074C7FFEAFF9CFC76805FD4DDF886" author="Christoffersen, M. L." box="[956,1187,1845,1871]" pageId="5" pageNumber="80" pagination="189 - 208" refId="ref5659" refString="Christoffersen, M. L. (1984) The western Atlantic snapping shrimps related to Alpheus heterochaelis Say (Crustacea, Caridea), with the description of a new species. Papeis Avulsos de Zoologia, 35, 189 - 208." type="journal article" year="1984">Christoffersen, 1984</bibRefCitation>
</taxonomicName>
, seem to be closely related to 
<taxonomicName id="4C2172B5FFEAFF9CFF3A8033D12BF8BA" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[240,341,1881,1907]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEAFF9CFF3A8033D12BF8BA" box="[240,341,1881,1907]" italics="true" pageId="5" pageNumber="80">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEAFF9CFE918033D1CAF8BA" box="[347,436,1881,1907]" pageId="5" pageNumber="80" rank="species">
<emphasis id="B955D524FFEAFF9CFE918033D1CAF8BA" bold="true" box="[347,436,1881,1907]" pageId="5" pageNumber="80">sp. nov.</emphasis>
</taxonomicNameLabel>
(cf. 
<bibRefCitation id="EFB074C7FFEAFF9CFE2D8033D201F8BA" author="Schmitt, W. L." box="[487,639,1881,1907]" pageId="5" pageNumber="80" pagination="65 - 99" refId="ref6374" refString="Schmitt, W. L. (1924) Report on Macrura, Anomura and Stomatopoda collected by the Barbados-Antigua Expedition from the University of Iowa in 1918. Studies of Natural History, Iowa University, 10, 65 - 99, pls. 1 - 5." type="journal article" year="1924">Schmitt 1924</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFD438033D33DF8BA" author="Armstrong, J. C." box="[649,835,1881,1907]" pageId="5" pageNumber="80" pagination="1 - 27" refId="ref5373" refString="Armstrong, J. C. (1949) New Caridea from the Dominican Republic. American Museum Novitates, 1410, 1 - 27." type="journal article" year="1949">Armstrong 1949</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFC848033D451F8BA" author="Christoffersen, M. L." box="[846,1071,1881,1907]" pageId="5" pageNumber="80" pagination="189 - 208" refId="ref5659" refString="Christoffersen, M. L. (1984) The western Atlantic snapping shrimps related to Alpheus heterochaelis Say (Crustacea, Caridea), with the description of a new species. Papeis Avulsos de Zoologia, 35, 189 - 208." type="journal article" year="1984">Christoffersen 1984</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFBF38033D480F8BA" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." box="[1081,1278,1881,1907]" pageId="5" pageNumber="80" pagination="41 - 60" refId="ref5094" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2007) Revision of the Alpheus nuttingi (Schmitt) species complex, with description of a new species from the tropical eastern Pacific (Crustacea: Decapoda: Alpheidae). Zootaxa, 1577, 41 - 60." type="journal article" year="2007">
Anker 
<emphasis id="B955D524FFEAFF9CFB4F8030D4C3F8BA" box="[1157,1213,1881,1907]" italics="true" pageId="5" pageNumber="80">et al.</emphasis>
2007
</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFEAFF9CFAC28033D5EFF8BA" author="Anker, A." box="[1288,1425,1881,1907]" pageId="5" pageNumber="80" pagination="1 - 109" refId="ref5033" refString="Anker, A. (2012) Revision of the western Atlantic members of the Alpheus armillatus H. Milne Edwards, 1837 species complex (Decapoda, Alpheidae), with description of seven new species. Zootaxa, 3386 (1), 1 - 109. https: // doi. org / 10.11646 / zootaxa. 3386.1.1" type="journal article" year="2012">Anker 2012</bibRefCitation>
). Among the Indo-West Pacific species of the 
<taxonomicName id="4C2172B5FFEAFF9CFD428017D36AF85E" ID-CoL="84W7L" baseAuthorityName="Audouin" baseAuthorityYear="1826" box="[648,788,1917,1943]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFEAFF9CFD428017D36AF85E" box="[648,788,1917,1943]" italics="true" pageId="5" pageNumber="80">A. edwardsii</emphasis>
</taxonomicName>
group, only 
<taxonomicName id="4C2172B5FFEAFF9CFC698017D4CCF85E" ID-CoL="84W7K" authority="Banner, 1956" authorityName="Banner" authorityYear="1956" box="[931,1202,1916,1943]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="dolerus">
<emphasis id="B955D524FFEAFF9CFC698017D46BF85E" box="[931,1045,1917,1943]" italics="true" pageId="5" pageNumber="80">A. dolerus</emphasis>
<bibRefCitation id="EFB074C7FFEAFF9CFBD68017D4CCF85E" author="Banner, A. H." box="[1052,1202,1916,1943]" pageId="5" pageNumber="80" pagination="318 - 373" refId="ref5492" refString="Banner, A. H. (1956) Contributions to the knowledge of the alpheid shrimp of the Pacific Ocean. Part I. Collections from the Mariana Archipelago. Pacific Science, 10, 318 - 373." type="journal article" year="1956">Banner, 1956</bibRefCitation>
</taxonomicName>
has some superficial similarities with the new species, but can be easily separated by the configuration of the rostro-orbital region and frontal appendages (cf. 
<bibRefCitation id="EFB074C7FFEAFF9CFE6080ACD2C0F816" author="Banner, D. M. &amp; Banner, A. H." box="[426,702,1989,2016]" pageId="5" pageNumber="80" pagination="1 - 357" refId="ref5532" refString="Banner, D. M. &amp; Banner, A. H. (1982) The alpheid shrimp of Australia, part III: the remaining alpheids, principally the genus Alpheus, and the family Ogyrididae. Records of the Australian Museum, 34, 1 - 357. https: // doi. org / 10.3853 / j. 0067 - 1975.34.1982.434" type="journal article" year="1982">Banner &amp; Banner 1982</bibRefCitation>
). Remarkably, 
<taxonomicName id="4C2172B5FFEAFF9CFCA680AFD3AAF816" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[876,980,1989,2015]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="80" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFEAFF9CFCA680AFD3AAF816" box="[876,980,1989,2015]" italics="true" pageId="5" pageNumber="80">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFEAFF9CFC1480AFD445F816" box="[990,1083,1989,2015]" pageId="5" pageNumber="80" rank="species">
<emphasis id="B955D524FFEAFF9CFC1480AFD445F816" bold="true" box="[990,1083,1989,2015]" pageId="5" pageNumber="80">sp. nov.</emphasis>
</taxonomicNameLabel>
is also superficially similar to 
<taxonomicName id="4C2172B5FFE9FF9FFF5D87F0D2D0FF7A" ID-CoL="85LH8" authority="Anker, Komai &amp; Marin, 2015" authorityName="Anker, Komai &amp; Marin" authorityYear="2015" box="[151,686,152,180]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="echiurophilus">
<emphasis id="B955D524FFE9FF9FFF5D87F0D12FFF7A" box="[151,337,153,180]" italics="true" pageId="6" pageNumber="81">A. echiurophilus</emphasis>
<bibRefCitation id="EFB074C7FFE9FF9FFE9287F3D2D0FF7A" author="Anker, A. &amp; Komai, T. &amp; Marin, I. N." box="[344,686,152,179]" pageId="6" pageNumber="81" pagination="441 - 455" refId="ref5206" refString="Anker, A., Komai, T. &amp; Marin, I. N. (2015) A new echiuran-associated snapping shrimp (Crustacea: Decapoda: Alpheidae) from the Indo-West Pacific. Zootaxa, 3914 (4), 441 - 455. https: // doi. org / 10.11646 / zootaxa. 3914.4.4" type="journal article" year="2015">Anker, Komai &amp; Marin, 2015</bibRefCitation>
</taxonomicName>
, a recently described species associated with burrowing echiurans across the Indo-West Pacific. These similarities include the general shape of the body, frontal region (including rostro-orbital area), chelipeds, walking legs, as well as colour pattern (Anker 
<emphasis id="B955D524FFE9FF9FFC178788D46BFF32" box="[989,1045,225,251]" italics="true" pageId="6" pageNumber="81">et al.</emphasis>
2015). However, this resemblance seems to be purely convergent since 
<taxonomicName id="4C2172B5FFE9FF9FFDFF866CD290FED6" ID-CoL="85LH8" authorityName="Anker, Komai &amp; Marin" authorityYear="2015" box="[565,750,261,288]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="echiurophilus">
<emphasis id="B955D524FFE9FF9FFDFF866CD290FED6" box="[565,750,261,288]" italics="true" pageId="6" pageNumber="81">A. echiurophilus</emphasis>
</taxonomicName>
does not belong to the 
<taxonomicName id="4C2172B5FFE9FF9FFC3F866CD4FCFED6" ID-CoL="84W7L" baseAuthorityName="Audouin" baseAuthorityYear="1826" box="[1013,1154,261,288]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="edwardsii">
<emphasis id="B955D524FFE9FF9FFC3F866CD4FCFED6" box="[1013,1154,261,288]" italics="true" pageId="6" pageNumber="81">A. edwardsii</emphasis>
</taxonomicName>
group, but to the 
<taxonomicName id="4C2172B5FFE9FF9FFA81866CD10AFE8A" ID-CoL="85LKP" authority="Dana, 1852" authorityName="Dana" authorityYear="1852" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="leviusculus">
<emphasis id="B955D524FFE9FF9FFA81866CD095FE8A" italics="true" pageId="6" pageNumber="81">A. leviusculus</emphasis>
<bibRefCitation id="EFB074C7FFE9FF9FFF388640D10AFE8A" author="Dana, J. D." box="[242,372,296,324]" pageId="6" pageNumber="81" refId="ref5703" refString="Dana, J. D. (1852) United States Exploring Expedition during the years 1838, 1839, 1840, 1841, 1842, under the Command of Charles Wilkes, U. S. N. Vol. XIII. Crustacea. Part I. C. Sherman, Philadelphia, 685 pp., 96 pls." type="book" year="1852">Dana, 1852</bibRefCitation>
</taxonomicName>
group (“L clade” in 
<bibRefCitation id="EFB074C7FFE9FF9FFD908643D35DFE8A" author="Anker, A. &amp; Hurt, C. &amp; Knowlton, N." box="[602,803,297,324]" pageId="6" pageNumber="81" pagination="1 - 23" refId="ref5149" refString="Anker, A., Hurt, C. &amp; Knowlton, N. (2009) Description of cryptic taxa within the Alpheus bouvieri A. MilneEdwards, 1878 and A. hebes Kim and Abele, 1988 species complexes (Crustacea: Decapoda: Alpheidae). Zootaxa, 2153, 1 - 23." type="journal article" year="2009">
Anker 
<emphasis id="B955D524FFE9FF9FFD6D8640D2A7FE8A" box="[679,729,297,323]" italics="true" pageId="6" pageNumber="81">et al</emphasis>
. 2009
</bibRefCitation>
), as discussed by Anker 
<emphasis id="B955D524FFE9FF9FFBFC8640D410FE8A" box="[1078,1134,297,323]" italics="true" pageId="6" pageNumber="81">et al.</emphasis>
(2015). This means that in 
<taxonomicName id="4C2172B5FFE9FF9FFF5D8624D12EFEAE" ID-CoL="85LH8" authorityName="Anker, Komai &amp; Marin" authorityYear="2015" box="[151,336,333,360]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="echiurophilus">
<emphasis id="B955D524FFE9FF9FFF5D8624D12EFEAE" box="[151,336,333,360]" italics="true" pageId="6" pageNumber="81">A. echiurophilus</emphasis>
</taxonomicName>
, the transverse groove does not extend posteriorly on the mesial surface of the major chela palm (Anker 
<emphasis id="B955D524FFE9FF9FFF248618D158FE42" box="[238,294,369,395]" italics="true" pageId="6" pageNumber="81">et al.</emphasis>
2015: figs. 2B, 4B), as it does in the new species from 
<collectingCountry id="F33649A6FFE9FF9FFC5D8618D38EFE45" box="[919,1008,370,396]" name="Panama" pageId="6" pageNumber="81">Panama</collectingCountry>
(
<figureCitation id="131A15B3FFE9FF9FFBCA861BD424FE42" box="[1024,1114,369,395]" captionStart="FIGURE 2" captionStartId="3.[151,250,1452,1477]" captionTargetBox="[167,1423,188,1420]" captionTargetId="figure@3.[151,1436,181,1427]" captionTargetPageId="3" captionText="FIGURE 2. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—major cheliped, carpus and chela, mesial view; B—same, coxa to proximal portion of palm, lateral view; C—same, carpus and chela, lateral view; D—same, dactylus with plunger, lateral view; E—minor cheliped, lateral view; Fsame, carpus and chela, mesial view." httpUri="https://zenodo.org/record/3359126/files/figure.png" pageId="6" pageNumber="81">Fig. 2A</figureCitation>
). Whether 
<taxonomicName id="4C2172B5FFE9FF9FFB1C8618D545FE42" ID-CoL="85LMS" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[1238,1339,369,396]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFE9FF9FFB1C8618D545FE42" box="[1238,1339,369,396]" italics="true" pageId="6" pageNumber="81">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFE9FF9FFA888618D5E2FE45" box="[1346,1436,370,396]" pageId="6" pageNumber="81" rank="species">
<emphasis id="B955D524FFE9FF9FFA888618D5E2FE45" bold="true" box="[1346,1436,370,396]" pageId="6" pageNumber="81">sp. nov.</emphasis>
</taxonomicNameLabel>
is also associated with echiurans remains to be demonstrated by a more intensive sampling of echiuran burrows in the eastern Pacific.
</paragraph>
</subSubSection>
<subSubSection id="C33B5ABDFFE9FF9FFF0D86B7D4A7FD06" pageId="6" pageNumber="81" type="description">
<paragraph id="8B9E0936FFE9FF9FFF0D86B7D4A7FD06" blockId="6.[151,1437,152,720]" pageId="6" pageNumber="81">
The presence of a subacute process on the subdistal-ventral margin of the protopod of the first and second pleopods in 
<taxonomicName id="4C2172B5FFE9FF9FFF3A8568D12AFDD2" authority="Anker &amp; Pachelle, 2019" authorityName="Anker &amp; Pachelle" authorityYear="2019" box="[240,340,513,540]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="perlas" status="sp. nov.">
<emphasis id="B955D524FFE9FF9FFF3A8568D12AFDD2" box="[240,340,513,540]" italics="true" pageId="6" pageNumber="81">A. perlas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A266685FFFE9FF9FFE918568D1CBFDD5" box="[347,437,514,540]" pageId="6" pageNumber="81" rank="species">
<emphasis id="B955D524FFE9FF9FFE918568D1CBFDD5" bold="true" box="[347,437,514,540]" pageId="6" pageNumber="81">sp. nov.</emphasis>
</taxonomicNameLabel>
(
<figureCitation id="131A15B3FFE9FF9FFE0E856BD243FDD5" box="[452,573,513,540]" captionStart="FIGURE 1" captionStartId="2.[151,250,1785,1810]" captionTargetBox="[160,1420,192,1744]" captionTargetId="figure@2.[151,1436,179,1757]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus perlas sp. nov., holotype, male (cl 6.7 mm) from Isla Casayeta, Las Perlas Archipelago, Panama, MNHN- IU-2019-2301; A—frontal region, dorsal view; B—same, lateral view; C—telson, dorsal view (marginal setae omitted for more clarity); D—tooth on ventromesial carina of first article of antennular peduncle, lateral view; E—third maxilliped, lateral view; F—same, detail of coxa, mastigobranch and arthrobranch; G—first pleopod, lateral view; H—second pleopod, lateral view; I—same, detail of appendix interna and appendix masculina; J—uropod, dorsal view (marginal setae omitted for more clarity)." httpUri="https://zenodo.org/record/3359124/files/figure.png" pageId="6" pageNumber="81">Fig. 1G, H</figureCitation>
) may be the only true autopomorphic feature of the new taxon. However, the absence of such a process in other species of 
<taxonomicName id="4C2172B5FFE9FF9FFD58854FD292FDF6" authorityName="Fabricius" authorityYear="1798" box="[658,748,549,575]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="genus">
<emphasis id="B955D524FFE9FF9FFD58854FD292FDF6" box="[658,748,549,575]" italics="true" pageId="6" pageNumber="81">Alpheus</emphasis>
</taxonomicName>
needs confirmation as the protopods are not always carefully observed and/or drawn; this is especially true for the protopod of the first pleopod. In the authors’ personal experience, most American species of 
<taxonomicName id="4C2172B5FFE9FF9FFE318507D22BFD4E" authorityName="Fabricius" authorityYear="1798" box="[507,597,621,647]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="genus">
<emphasis id="B955D524FFE9FF9FFE318507D22BFD4E" box="[507,597,621,647]" italics="true" pageId="6" pageNumber="81">Alpheus</emphasis>
</taxonomicName>
do not have such a process on the first and second pleopods. The only other conspicuous modification of the pleopodal protopods is observed in 
<taxonomicName id="4C2172B5FFE9FF9FFC5F85F8D439FD62" authorityName="Wicksten" authorityYear="1988" box="[917,1095,657,684]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="81" phylum="Arthropoda" rank="species" species="colombiensis">
<emphasis id="B955D524FFE9FF9FFC5F85F8D439FD62" box="[917,1095,657,684]" italics="true" pageId="6" pageNumber="81">A. colombiensis</emphasis>
</taxonomicName>
, in which they are armed with row(s) of stout sharp teeth, especially in ovigerous females (
<bibRefCitation id="EFB074C7FFE9FF9FFCF085DFD398FD06" author="Wicksten, M. K." box="[826,998,693,719]" pageId="6" pageNumber="81" pagination="1 - 4" refId="ref6513" refString="Wicksten, M. K. (1988) A new snapping shrimp from the Pacifc coast of Colombia (Decapoda, Caridea, Alpheidae). Crustaceana, 54, 1 - 4. https: // doi. org / 10.1163 / 156854088 X 00564" type="journal article" year="1988">Wicksten 1988</bibRefCitation>
; 
<bibRefCitation id="EFB074C7FFE9FF9FFC3885DFD4B2FD06" author="Kim, W. &amp; Abele, L. G." box="[1010,1228,693,719]" pageId="6" pageNumber="81" pagination="1 - 119" refId="ref6036" refString="Kim, W. &amp; Abele, L. G. (1988) The snapping shrimp genus Alpheus from the eastern Pacific (Decapoda: Caridea: Alpheidae). Smithsonian Contributions to Zoology, 454, 1 - 119. https: // doi. org / 10.5479 / si. 00810282.454" type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>