treatments-xml/data/A5/53/87/A55387C3FF909C1DFF0CFEE329355844.xml

<document id="8966B790B3A9B982174176AE701BCDA3" ID-CLB-Dataset="46600" ID-DOI="10.5281/zenodo.201972" ID-GBIF-Dataset="9db61e71-4806-48a6-830a-cac5a65234fb" ID-ISSN="1175-5326" ID-Zenodo-Dep="201972" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460373460192" checkinUser="plazi" docAuthor="Anker, Arthur &amp; Nizinski, Martha" docDate="2011" docId="A55387C3FF909C1DFF0CFEE329355844" docLanguage="en" docName="zt02925p056.pdf" docOrigin="Zootaxa 2925" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Alpheus lentiginosus Anker &amp; Nizinski, 2011, n. sp." docType="treatment" docVersion="10" lastPageNumber="55" masterDocId="596AFFBBFF919C1BFF9BFFA62D4A5E68" masterDocTitle="Description of a new deep-water species of Alpheus Fabricius, 1798 from the Gulf of Mexico (Crustacea, Decapoda, Alpheidae)" masterLastPageNumber="56" masterPageNumber="49" pageNumber="50" updateTime="1698296056395" updateUser="ExternalLinkService">
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<mods:title id="5EFB757B3E84076F8E0B52A665CA1765">Description of a new deep-water species of Alpheus Fabricius, 1798 from the Gulf of Mexico (Crustacea, Decapoda, Alpheidae)</mods:title>
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<mods:namePart id="F44D72F083F3D0B6BD53CFE479B0CDD1">Nizinski, Martha</mods:namePart>
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<subSubSection id="65E0655EFF909C1AFF0CFEE32C585F17" pageId="1" pageNumber="50" type="nomenclature">
<paragraph id="2D4536D5FF909C1AFF0CFEE32C945F37" blockId="1.[151,537,290,383]" box="[151,478,325,351]" pageId="1" pageNumber="50">
<heading id="760D81B9FF909C1AFF0CFEE32C945F37" bold="true" box="[151,478,325,351]" fontSize="11" level="1" pageId="1" pageNumber="50" reason="1">
<emphasis id="1F8EEAC7FF909C1AFF0CFEE32C945F37" bold="true" box="[151,478,325,351]" pageId="1" pageNumber="50">
<taxonomicName id="EAFA4D56FF909C1AFF0CFEE32CDE5F37" ID-CoL="85LKK" box="[151,404,325,351]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="50" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF909C1AFF0CFEE32CDE5F37" bold="true" box="[151,404,325,351]" italics="true" pageId="1" pageNumber="50">Alpheus lentiginosus</emphasis>
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<paragraph id="2D4536D5FF909C1AFF0CFEC12C585F17" blockId="1.[151,537,290,383]" box="[151,274,359,383]" pageId="1" pageNumber="50">
(
<figureCitation id="B5C12A50FF909C1AFF04FEC12C435F17" box="[159,265,359,383]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStartId-0="2.[151,250,1763,1786]" captionStartId-1="3.[151,250,1811,1834]" captionStartId-2="4.[151,250,584,607]" captionTargetBox-0="[176,1427,373,1727]" captionTargetBox-1="[154,1434,627,1762]" captionTargetBox-2="[151,1436,189,565]" captionTargetId-0="figure@2.[151,1436,373,1742]" captionTargetId-1="figure@3.[151,1436,625,1789]" captionTargetId-2="figure@4.[151,1436,189,565]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="4" captionText-0="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." captionText-1="FIGURE 2. Alpheus lentiginosus n. sp., holotype male from northern Gulf of Mexico: a, minor cheliped, mesial; b, same, lateral; c, major cheliped, lateral; d, same, proximal portion (ischium to carpus), mesial; e, same, chela, mesial." captionText-2="FIGURE 3. Alpheus lentiginosus n. sp., holotype male (a), paratype female (b), from northern Gulf of Mexico, habitus and colour pattern. Scale in b in cm / mm. Photographs by Cheryl Morrison (USGS)." httpUri-0="https://zenodo.org/record/201973/files/figure.png" httpUri-1="https://zenodo.org/record/201974/files/figure.png" httpUri-2="https://zenodo.org/record/201975/files/figure.png" pageId="1" pageNumber="50">Figs. 1–3</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="65E0655EFF909C1AFF0CFE162FEB5CAC" pageId="1" pageNumber="50" type="materials_examined">
<paragraph id="2D4536D5FF909C1AFF0CFE162FEB5CAC" blockId="1.[151,1437,431,2008]" pageId="1" pageNumber="50">
<emphasis id="1F8EEAC7FF909C1AFF0CFE162C0C5FA0" bold="true" box="[151,326,431,456]" pageId="1" pageNumber="50">
<typeStatus id="F2418877FF909C1AFF0CFE162D985FA0" box="[151,210,432,456]" pageId="1" pageNumber="50">Type</typeStatus>
material.
</emphasis>
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<typeStatus id="F2418877FF909C1AFED6FE162CFE5FA0" box="[333,436,432,456]" pageId="1" pageNumber="50" type="holotype">Holotype</typeStatus>
</emphasis>
: male (CL 
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), 
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1145505, North Atlantic Ocean, Gulf of 
<collectingCountry id="55ED7645FF909C1AFB56FE09286F5FAF" box="[1229,1317,431,455]" name="Mexico" pageId="1" pageNumber="50">Mexico</collectingCountry>
, 
<quantity id="EA029B30FF909C1AFAAAFE0928D65FAF" box="[1329,1436,431,455]" metricMagnitude="5" metricUnit="m" metricValue="1.888" pageId="1" pageNumber="50" unit="km" value="188.8">188.8 km</quantity>
south of Louisiana, expedition 
<collectionCode id="4BEBAE10FF909C1AFE68FE722F715F84" box="[499,571,468,492]" httpUri="http://grbio.org/cool/3n47-ewde" name="U.S. Geological Survey" pageId="1" pageNumber="50">USGS</collectionCode>
<collectionCode id="4BEBAE10FF909C1AFDDAFE722E525F84" box="[577,792,468,492]" pageId="1" pageNumber="50">DISCOVRE GOM</collectionCode>
, cruise JSLII-09- 
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, vessel Seward Johnson – DSR/V Johnson Sea Link II, Sta. JSL 3726, 
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<geoCoordinate id="48CE5012FF909C1AFD57FE512E165C67" box="[716,860,503,527]" direction="west" orientation="longitude" pageId="1" pageNumber="50" precision="15" value="-89.79972">89°47’59”W</geoCoordinate>
(28.1947250, -89.7999167), Lease Block MC751, Bucket 1, depth 
<quantity id="EA029B30FF909C1AFEC8FDBA2C9F5C5C" box="[339,469,540,564]" metricMagnitude="2" metricUnit="m" metricValue="4.36" metricValueMax="4.38" metricValueMin="4.34" pageId="1" pageNumber="50" unit="m" value="436.0" valueMax="438.0" valueMin="434.0">434–438 m</quantity>
, patch reef on soft bottom, base of 
<taxonomicName id="EAFA4D56FF909C1AFCF0FDBA29BB5C5C" authority="S.W. Ross et al." authorityName="S.W. Ross et al." box="[875,1265,540,564]" class="Anthozoa" family="Caryophylliidae" genus="Lophelia" kingdom="Animalia" order="Scleractinia" pageId="1" pageNumber="50" phylum="Cnidaria" rank="species" species="pertusa">
<emphasis id="1F8EEAC7FF909C1AFCF0FDBA29605C5C" box="[875,1066,540,564]" italics="true" pageId="1" pageNumber="50">Lophelia pertusa</emphasis>
, S.W. Ross 
<emphasis id="1F8EEAC7FF909C1AFB2CFDBB29BB5C5C" box="[1207,1265,540,564]" italics="true" pageId="1" pageNumber="50">et al.</emphasis>
</taxonomicName>
, 
<date id="59441015FF909C1AFA9BFDBA2D995C3F" pageId="1" pageNumber="50" value="2009-09-19">19 September 2009</date>
. 
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<typeStatus id="F2418877FF909C1AFF46FDE72C095C30" box="[221,323,577,600]" pageId="1" pageNumber="50" type="paratype">Paratype</typeStatus>
</emphasis>
: female (CL 
<quantity id="EA029B30FF909C1AFE40FD992F0E5C3F" box="[475,580,575,599]" metricMagnitude="-2" metricUnit="m" metricValue="1.01" pageId="1" pageNumber="50" unit="mm" value="10.1">10.1 mm</quantity>
), 
<collectionCode id="4BEBAE10FF909C1AFDC3FD992FE35C3F" LSID="urn:lsid:biocol.org:col:34871" box="[600,681,575,599]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="1" pageNumber="50">USNM</collectionCode>
1145818, North Atlantic Ocean, Gulf of 
<collectingCountry id="55ED7645FF909C1AFBE0FD99299E5C3F" box="[1147,1236,575,599]" name="Mexico" pageId="1" pageNumber="50">Mexico</collectingCountry>
, 
<quantity id="EA029B30FF909C1AFB44FD9928125C3F" box="[1247,1368,575,599]" metricMagnitude="5" metricUnit="m" metricValue="2.6182" pageId="1" pageNumber="50" unit="km" value="261.82">261.82 km</quantity>
south of Louisiana, expedition USGS-GOM-Lophelia I, cruise USGS-GOM, vessel Seward Johnson – DSR/V Johnson Sea Link I, Sta. JSL 4745, 
<geoCoordinate id="48CE5012FF909C1AFE59FD212F015CF7" box="[450,587,647,671]" direction="north" orientation="latitude" pageId="1" pageNumber="50" precision="15" value="29.098057">29°05’53”N</geoCoordinate>
<geoCoordinate id="48CE5012FF909C1AFDC9FD212FAB5CF7" box="[594,737,647,671]" direction="west" orientation="longitude" pageId="1" pageNumber="50" precision="15" value="-88.384995">88°23’06”W</geoCoordinate>
(29.0979533, -88.3849800), Lease Block VK906/862, Bucket 11, depth 
<quantity id="EA029B30FF909C1AFE9EFD0A2C045CAC" box="[261,334,684,708]" metricMagnitude="2" metricUnit="m" metricValue="3.36" pageId="1" pageNumber="50" unit="m" value="336.0">336 m</quantity>
, K. Sulak 
<emphasis id="1F8EEAC7FF909C1AFE58FD0B2CB15CAC" box="[451,507,684,708]" italics="true" pageId="1" pageNumber="50">et al.</emphasis>
, 
<date id="59441015FF909C1AFD92FD0A2FD75CAC" box="[521,669,684,708]" pageId="1" pageNumber="50" value="2004-07-30">30 July 2004</date>
.
</paragraph>
</subSubSection>
<subSubSection id="65E0655EFF909C1FFF5CFD692CD25B2C" lastPageId="4" lastPageNumber="53" pageId="1" pageNumber="50" type="description">
<paragraph id="2D4536D5FF909C1AFF5CFD692FB75DA8" blockId="1.[151,1437,431,2008]" pageId="1" pageNumber="50">
<emphasis id="1F8EEAC7FF909C1AFF5CFD692C135C80" bold="true" box="[199,345,719,744]" pageId="1" pageNumber="50">Description.</emphasis>
Body moderately slender, laterally not compressed. Carapace glabrous, without marked sculpture; frontal margin with well-developed rostrum and orbital teeth; rostrum subtriangular, distally acute, longer than as wide, without setae; tip not reaching half-length of first article of antennular peduncle; rostral carina not distinct; orbital teeth in marginal position, narrow, slightly directed mesially, distally acute, shorter than rostrum; margin between orbital teeth and rostrum almost straight, transversely oblique; orbital hoods moderately swollen, complete, enclosing eyes from all sides (
<figureCitation id="B5C12A50FF909C1AFDFCFC222FE25DF4" box="[615,680,900,924]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
a, b); orbito-rostral process simple. Pterygostomial angle rounded, not protruding anteriorly (
<figureCitation id="B5C12A50FF909C1AFE20FC0E2CB05DA8" box="[443,506,936,960]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
b); cardiac notch deep.
</paragraph>
<paragraph id="2D4536D5FF909C1AFF5EFC6A2C585AD4" blockId="1.[151,1437,431,2008]" pageId="1" pageNumber="50">
Abdominal somites with posteroventral margins broadly rounded to somewhat angular; sixth somite without articulated flap, distodorsal margin bluntly projecting on each side of telson. Telson subrectangular, tapering posteriorly, more than twice as long as wide at base; lateral margins slightly and broadly convex; dorsal surface with two pairs of strong spiniform setae inserted far from lateral margin, first pair anterior to half-length of telson, second pair between 2/3 and 3/4 length of telson; posterior margin broadly convex, with two pairs of slender posterolateral spines, mesial twice as long as lateral, margin between spines without spiniform setae (
<figureCitation id="B5C12A50FF909C1AFBF8FB2629E85AF0" box="[1123,1186,1152,1176]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
k); anal tubercles well developed.
</paragraph>
<paragraph id="2D4536D5FF909C1AFF5EFB6F282E5B6C" blockId="1.[151,1437,431,2008]" pageId="1" pageNumber="50">
Eyes with well-developed, normally pigmented corneas; anteromesial margin protruding as large bump (
<figureCitation id="B5C12A50FF909C1AFAF4FB6E2DE95B6C" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
l). Ocellar beak acute, rather small, not visible in lateral view. Epistomial sclerites without acute projections.
</paragraph>
<paragraph id="2D4536D5FF909C1AFF5EFAB62EB1584F" blockId="1.[151,1437,431,2008]" pageId="1" pageNumber="50">
Antennular peduncle slender; stylocerite well developed, with acute tip, falling short of distal margin of first article; ventromesial carina with subtriangular tooth as illustrated (
<figureCitation id="B5C12A50FF909C1AFC15FA922E9A5B24" box="[910,976,1332,1356]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
c); second article much longer than dorsally visible portion of first article, about three times as long as wide; third article shortest, about one third length of second (
<figureCitation id="B5C12A50FF909C1AFF6FFAD92C795BFF" box="[244,307,1407,1431]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
a); lateral flagellum with groups of aesthetascs starting from 10th article, aesthetascs longer and more dense distally, secondary ramus composed of at least two articles. Antenna with basicerite terminating in stout sharp distoventral tooth; carpocerite slender, exceeding both scaphocerite and antennular peduncle; scaphocerite with shallowly concave lateral margin; distolateral tooth stout, reaching far beyond distal margin of blade, and also reaching slightly beyond distal margin of antennular peduncle (
<figureCitation id="B5C12A50FF909C1AFCC0F9A92ED1584F" box="[859,923,1551,1575]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
a, b, m).
</paragraph>
<paragraph id="2D4536D5FF909C1AFF5EF9942ECF594A" blockId="1.[151,1437,431,2008]" pageId="1" pageNumber="50">
Mouthparts not dissected, appearing genus-typical in external observation; mandible with biarticulated palp, incisor process with distal margin furnished with seven subtriangular teeth, most-anterodistal margin without teeth. Third maxilliped fairly slender; coxa with lateral plate bluntly produced dorsally, distal margin with row of setae; exopod long, overreaching distal margin of antepenultimate article; antepenultimate article somewhat flattened, subtriangular in cross-section, ventral margin setose; distodorsal margin with one particularly long thick seta; penultimate article subcylindrical, about four times as long as wide, distally widening, dorsal margin with stiff setae; ultimate article slender, unarmed distally, with long setae (
<figureCitation id="B5C12A50FF909C1AFCBEF8AC2E2E594A" box="[805,868,1802,1826]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="1" pageNumber="50">Fig. 1</figureCitation>
d).
</paragraph>
<paragraph id="2D4536D5FF909C19FF5EF8892EDE5F57" blockId="1.[151,1437,431,2008]" lastBlockId="2.[151,1436,151,319]" lastPageId="2" lastPageNumber="51" pageId="1" pageNumber="50">
Male minor cheliped with short ischium, its ventral margin furnished with small stout spiniform setae; merus broad, subtriangular in cross-section; ventrolateral margin smooth, unarmed; ventromesial margin straight, furnished with small spiniform setae, and ending in sharp distomesial tooth; dorsal margin ending bluntly distally; carpus rounded, cup-shaped; chela strongly compressed, with sculpture on distal portion of palm typical of 
<taxonomicName id="EAFA4D56FF909C1AFA1FF83D2C6E59BF" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="50" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF909C1AFA1FF83D2C6E59BF" italics="true" pageId="1" pageNumber="50">A. macrocheles</emphasis>
</taxonomicName>
group: lateral face of palm with low crest starting at about 3/5 length of chela and ending in a sharp distolateral tooth; ventral margin with deep notch continuing as shallow depression on lateral side but barely noticeable on mesial surface; dorsal margin with short subcylindrical elevation distally with adhesive disk; mesial margin with crest ending in stout sharp tooth; linea impressa poorly marked; fingers slightly longer than palm; pollex with excavated cutting edge; dactylus flattened, lamellar, twisted laterally, strongly convex dorsally (
<figureCitation id="B5C12A50FF939C19FADCFEA228C35F74" box="[1351,1417,260,284]" captionStart="FIGURE 2" captionStartId="3.[151,250,1811,1834]" captionTargetBox="[154,1434,627,1762]" captionTargetId="figure@3.[151,1436,625,1789]" captionTargetPageId="3" captionText="FIGURE 2. Alpheus lentiginosus n. sp., holotype male from northern Gulf of Mexico: a, minor cheliped, mesial; b, same, lateral; c, major cheliped, lateral; d, same, proximal portion (ischium to carpus), mesial; e, same, chela, mesial." httpUri="https://zenodo.org/record/201974/files/figure.png" pageId="2" pageNumber="51">Fig. 2</figureCitation>
a, b). Female minor cheliped generally similar to male minor cheliped.
</paragraph>
<caption id="7985665DFF939C19FF0CF9452CA059FA" httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="2" pageNumber="51" targetBox="[176,1427,373,1727]" targetPageId="2">
<paragraph id="2D4536D5FF939C19FF0CF9452CA059FA" blockId="2.[151,1436,1763,1938]" pageId="2" pageNumber="51">
<emphasis id="1F8EEAC7FF939C19FF0CF9452C595890" bold="true" box="[151,275,1763,1786]" pageId="2" pageNumber="51">FIGURE 1.</emphasis>
<taxonomicName id="EAFA4D56FF939C19FE82F9452CA15891" box="[281,491,1763,1785]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="51" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF939C19FE82F9452CA15891" box="[281,491,1763,1785]" italics="true" pageId="2" pageNumber="51">Alpheus lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF939C19FE69F9422F615891" bold="true" box="[498,555,1764,1785]" pageId="2" pageNumber="51">
<taxonomicNameLabel id="04BD57BCFF939C19FE69F9422F615891" box="[498,555,1764,1785]" pageId="2" pageNumber="51" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, holotype male (a–k), paratype female (l–n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral.
</paragraph>
</caption>
<paragraph id="2D4536D5FF929C18FF5EFF312D9F5C54" blockId="3.[151,1437,151,572]" pageId="3" pageNumber="52">
Male major cheliped with ischium short, furnished with small stout spiniform setae on ventromesial surface; merus stout, subtriangular in cross-section; ventrolateral margin smooth, unarmed; ventromesial margin straight, furnished with numerous small spiniform setae, and ending in stout, sharp distomesial tooth; dorsal margin ending bluntly distally; carpus very short, cup-shaped; chela compressed, with sculpture typical of 
<taxonomicName id="EAFA4D56FF929C18FB04FEA228015F74" box="[1183,1355,260,284]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="3" pageNumber="52" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF929C18FB04FEA228015F74" box="[1183,1355,260,284]" italics="true" pageId="3" pageNumber="52">A. macrocheles</emphasis>
</taxonomicName>
group; lateral face of palm with low crest starting at about 3/5 length of chela and ending in sharp distolateral tooth; ventral margin with deep notch continuing as shallow depression on lateral side and as shallow groove on mesial side; dorsal margin with subcylindrical elevation bearing adhesive disk distally; mesial margin with transversally interrupted crest ending in sharp tooth, latter overhanging propodo-dactylar articulation; linea impressa poorly marked; ventral surface with blunt setiferous tubercles; pollex short, somewhat twisted laterally, cutting edge with minute tooth followed by small notch; dactylus flattened, strongly turned laterally, convex dorsally; plunger reduced (
<figureCitation id="B5C12A50FF929C18FAF4FE7A2DEC5C7F" captionStart="FIGURE 2" captionStartId="3.[151,250,1811,1834]" captionTargetBox="[154,1434,627,1762]" captionTargetId="figure@3.[151,1436,625,1789]" captionTargetPageId="3" captionText="FIGURE 2. Alpheus lentiginosus n. sp., holotype male from northern Gulf of Mexico: a, minor cheliped, mesial; b, same, lateral; c, major cheliped, lateral; d, same, proximal portion (ischium to carpus), mesial; e, same, chela, mesial." httpUri="https://zenodo.org/record/201974/files/figure.png" pageId="3" pageNumber="52">Fig. 2</figureCitation>
c–e). Female major cheliped slightly smaller than male major cheliped, but generally similar in shape and proportions.
</paragraph>
<caption id="7985665DFF929C18FF0CF8B529A85920" httpUri="https://zenodo.org/record/201974/files/figure.png" pageId="3" pageNumber="52" targetBox="[154,1434,627,1762]" targetPageId="3">
<paragraph id="2D4536D5FF929C18FF0CF8B529A85920" blockId="3.[151,1436,1811,1864]" pageId="3" pageNumber="52">
<emphasis id="1F8EEAC7FF929C18FF0CF8B52C595941" bold="true" box="[151,275,1811,1834]" pageId="3" pageNumber="52">FIGURE 2.</emphasis>
<taxonomicName id="EAFA4D56FF929C18FE81F8B22CA75942" box="[282,493,1812,1834]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="3" pageNumber="52" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF929C18FE81F8B22CA75942" box="[282,493,1812,1834]" italics="true" pageId="3" pageNumber="52">Alpheus lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF929C18FE68F8B22F675941" bold="true" box="[499,557,1812,1833]" pageId="3" pageNumber="52">
<taxonomicNameLabel id="04BD57BCFF929C18FE68F8B22F675941" box="[499,557,1812,1833]" pageId="3" pageNumber="52" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, holotype male from northern Gulf of Mexico: a, minor cheliped, mesial; b, same, lateral; c, major cheliped, lateral; d, same, proximal portion (ischium to carpus), mesial; e, same, chela, mesial.
</paragraph>
</caption>
<paragraph id="2D4536D5FF929C1FFF0CF8D62EAF5D40" blockId="3.[151,1436,1904,2028]" lastBlockId="4.[151,1437,676,2032]" lastPageId="4" lastPageNumber="53" pageId="3" pageNumber="52">
Second pereiopod elongate, slender; ischium subequal to or slightly longer than merus; carpus with five articles with ratio approximately equal to 5–6: 3: 1.5: 1.5: 2; chela simple, fingers with tufts of setae (
<figureCitation id="B5C12A50FF929C18FB41F837285059C1" box="[1242,1306,1937,1961]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="3" pageNumber="52">Fig. 1</figureCitation>
e, n). Third pereiopod slender, with ischium bearing small ventrolateral spine; merus long, 11–12 times as long as wide, compressed, ventral margin unarmed; carpus more slender than merus, about half as long as merus, compressed, ventral margin unarmed; propodus much longer than carpus, ventral margin with a row of several slender spiniform setae, most distal ones in pairs, in addition to a pair of distoventral spiniform setae; dactylus about 1/4 length of propodus, subconical, curved ventrally, with acute tip and with minute dent subdistally (
<figureCitation id="B5C12A50FF959C1FFBE2FD4A29F35D6C" box="[1145,1209,748,772]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="4" pageNumber="53">Fig. 1</figureCitation>
f, g). Fourth pereiopod generally similar to third; fifth pereiopod with setal brush on propodus.
</paragraph>
<caption id="7985665DFF959C1FFF0CFDEE2E835C15" httpUri="https://zenodo.org/record/201975/files/figure.png" pageId="4" pageNumber="53" targetBox="[151,1436,189,565]" targetPageId="4">
<paragraph id="2D4536D5FF959C1FFF0CFDEE2E835C15" blockId="4.[151,1436,584,637]" pageId="4" pageNumber="53">
<emphasis id="1F8EEAC7FF959C1FFF0CFDEE2C5E5C35" bold="true" box="[151,276,584,607]" pageId="4" pageNumber="53">FIGURE 3.</emphasis>
<taxonomicName id="EAFA4D56FF959C1FFE87FDEE2CBA5C36" box="[284,496,584,606]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF959C1FFE87FDEE2CBA5C36" box="[284,496,584,606]" italics="true" pageId="4" pageNumber="53">Alpheus lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF959C1FFE62FDEF2F7E5C36" bold="true" box="[505,564,585,606]" pageId="4" pageNumber="53">
<taxonomicNameLabel id="04BD57BCFF959C1FFE62FDEF2F7E5C36" box="[505,564,585,606]" pageId="4" pageNumber="53" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, holotype male (a), paratype female (b), from northern Gulf of Mexico, habitus and colour pattern. Scale in b in cm / mm. Photographs by Cheryl Morrison (USGS).
</paragraph>
</caption>
<paragraph id="2D4536D5FF959C1FFF5EFC9228135D18" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
First pleopod with small endopod furnished with setae. Male second pleopod with appendix masculina exceeding appendix interna, but not reaching distal margin of endopod, with numerous setae as illustrated (
<figureCitation id="B5C12A50FF959C1FFB62FCFE28725D18" box="[1273,1336,856,880]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="4" pageNumber="53">Fig. 1</figureCitation>
h).
</paragraph>
<paragraph id="2D4536D5FF959C1FFF5EFCDA2C3D5DB4" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
Female second pleopod with appendix interna only. Uropod with protopod bearing large acute lateral tooth; sinuous diaeresis with blunt tooth adjacent to stout distolateral spiniform seta, and row of small spiniform setae on endopod (
<figureCitation id="B5C12A50FF959C1FFE9DFC622C0D5DB4" box="[262,327,964,988]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="4" pageNumber="53">
Fig. 
<date id="59441015FF959C1FFEA0FC622C0D5DB4" box="[315,327,964,988]" pageId="4" pageNumber="53">1</date>
</figureCitation>
i, j).
</paragraph>
<paragraph id="2D4536D5FF959C1FFF5EFC4E290B5A4C" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
Gill formula typical for 
<taxonomicName id="EAFA4D56FF959C1FFE41FC4E2F7E5A68" box="[474,564,1000,1024]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="genus">
<emphasis id="1F8EEAC7FF959C1FFE41FC4E2F7E5A68" box="[474,564,1000,1024]" italics="true" pageId="4" pageNumber="53">Alpheus</emphasis>
</taxonomicName>
, including five pleurobranchs (above P1 –5), one arthrobranch (Mxp3), two epipods (Mxp1–2), five masigobranchs (Mxp3, P1–4), and five setobranchs (P1–5).
</paragraph>
<paragraph id="2D4536D5FF959C1FFF5CFB892CE75AF8" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
<emphasis id="1F8EEAC7FF959C1FFF5CFB892CC95A20" bold="true" box="[199,387,1071,1096]" pageId="4" pageNumber="53">Colour pattern.</emphasis>
Body reddish-orange due to groups of reddish chromatophores on pale yellow background; chelipeds more yellow-orange; antennular and antennal flagella yellowish; walking legs yellowish with some red chromatophores (
<figureCitation id="B5C12A50FF959C1FFEC0FBDE2CD55AF8" box="[347,415,1144,1168]" captionStart="FIGURE 3" captionStartId="4.[151,250,584,607]" captionTargetBox="[151,1436,189,565]" captionTargetId="figure@4.[151,1436,189,565]" captionTargetPageId="4" captionText="FIGURE 3. Alpheus lentiginosus n. sp., holotype male (a), paratype female (b), from northern Gulf of Mexico, habitus and colour pattern. Scale in b in cm / mm. Photographs by Cheryl Morrison (USGS)." httpUri="https://zenodo.org/record/201975/files/figure.png" pageId="4" pageNumber="53">Fig. 3</figureCitation>
).
</paragraph>
<paragraph id="2D4536D5FF959C1FFF5CFB3A2CD25B2C" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
<emphasis id="1F8EEAC7FF959C1FFF5CFB3A2C715ADD" bold="true" box="[199,315,1180,1205]" pageId="4" pageNumber="53">Variation.</emphasis>
The female 
<typeStatus id="F2418877FF959C1FFE51FB3B2F605ADD" box="[458,554,1181,1205]" pageId="4" pageNumber="53" type="paratype">paratype</typeStatus>
is very similar to the male 
<typeStatus id="F2418877FF959C1FFCC3FB3A2EF75ADC" box="[856,957,1180,1204]" pageId="4" pageNumber="53" type="holotype">holotype</typeStatus>
, except for the slightly shorter orbital teeth (cf. 
<figureCitation id="B5C12A50FF959C1FFF5FFB662C4E5AB0" box="[196,260,1216,1240]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="4" pageNumber="53">Fig. 1</figureCitation>
a, l) and a somewhat different ratio of carpal articles in the second pereiopod, with the first article being about 1.5 times as long as the second in the male 
<typeStatus id="F2418877FF959C1FFD20FB422E6A5A94" box="[699,800,1252,1276]" pageId="4" pageNumber="53" type="holotype">holotype</typeStatus>
, and almost twice as long in the female 
<typeStatus id="F2418877FF959C1FFB47FB4328765A95" box="[1244,1340,1253,1277]" pageId="4" pageNumber="53" type="paratype">paratype</typeStatus>
(cf. 
<figureCitation id="B5C12A50FF959C1FFAEBFB422DE95B48" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="4" pageNumber="53">Fig. 1</figureCitation>
e, n). The major and minor chelipeds of the male and female are fairly similar, except for some minor discrepancies in the proportions.
</paragraph>
</subSubSection>
<subSubSection id="65E0655EFF959C1FFF5CFAF629F858E0" pageId="4" pageNumber="53" type="etymology">
<paragraph id="2D4536D5FF959C1FFF5CFAF62C6B5BE4" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
<emphasis id="1F8EEAC7FF959C1FFF5CFAF62C045B00" bold="true" box="[199,334,1360,1384]" pageId="4" pageNumber="53">Etymology.</emphasis>
The name (
<taxonomicName id="EAFA4D56FF959C1FFE4FFAF62F175B00" box="[468,605,1360,1384]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="species" species="lentiginosus">lentiginosus</taxonomicName>
= freckled in Latin) refers to the reddish spots formed by groups of chromatophores.
</paragraph>
<paragraph id="2D4536D5FF959C1FFF5CFA3E29F858E0" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
<emphasis id="1F8EEAC7FF959C1FFF5CFA3E2C615BD8" bold="true" box="[199,299,1432,1456]" pageId="4" pageNumber="53">Ecology.</emphasis>
The 
<typeStatus id="F2418877FF959C1FFEF8FA3E2C8F5BD8" box="[355,453,1432,1456]" pageId="4" pageNumber="53" type="holotype">holotype</typeStatus>
of 
<taxonomicName id="EAFA4D56FF959C1FFE72FA3E2FDA5BD8" box="[489,656,1432,1456]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF959C1FFE72FA3E2FDA5BD8" box="[489,656,1432,1456]" italics="true" pageId="4" pageNumber="53">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF959C1FFD0EFA3E2F995BD8" bold="true" box="[661,723,1432,1456]" pageId="4" pageNumber="53">
<taxonomicNameLabel id="04BD57BCFF959C1FFD0EFA3E2F995BD8" box="[661,723,1432,1456]" pageId="4" pageNumber="53" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
was found in a sediment sample taken at the base of a colony of 
<taxonomicName id="EAFA4D56FF959C1FFF0CFA1A2F6B5BBC" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[151,545,1468,1492]" class="Anthozoa" family="Caryophylliidae" genus="Lophelia" kingdom="Animalia" order="Scleractinia" pageId="4" pageNumber="53" phylum="Cnidaria" rank="species" species="pertusa">
<emphasis id="1F8EEAC7FF959C1FFF0CFA1A2C1D5BBC" box="[151,343,1468,1492]" italics="true" pageId="4" pageNumber="53">Lophelia pertusa</emphasis>
(Linnaeus, 1758)
</taxonomicName>
(
<taxonomicName id="EAFA4D56FF959C1FFDA9FA1A2FF15BBC" box="[562,699,1468,1492]" class="Anthozoa" kingdom="Animalia" order="Scleractinia" pageId="4" pageNumber="53" phylum="Cnidaria" rank="order">Scleractinia</taxonomicName>
, 
<taxonomicName id="EAFA4D56FF959C1FFD53FA1A2E345BBC" box="[712,894,1468,1492]" class="Anthozoa" family="Caryophylliidae" kingdom="Animalia" order="Scleractinia" pageId="4" pageNumber="53" phylum="Cnidaria" rank="family">Caryophylliidae</taxonomicName>
) attached to carbonate rock at 
<quantity id="EA029B30FF959C1FFB7BFA1A282E5BBC" box="[1248,1380,1468,1492]" metricMagnitude="2" metricUnit="m" metricValue="4.36" metricValueMax="4.38" metricValueMin="4.34" pageId="4" pageNumber="53" unit="m" value="436.0" valueMax="438.0" valueMin="434.0">
434– 
<specimenCount id="3BFCFD5CFF959C1FFA82FA1A282E5BBC" box="[1305,1380,1468,1492]" pageId="4" pageNumber="53" type="generic">438 m</specimenCount>
</quantity>
. The general habitat was videotaped and can be described as soft sediments overlying carbonate rock with patch reefs comprised of 
<taxonomicName id="EAFA4D56FF959C1FFEADF9A32CE05874" box="[310,426,1541,1564]" class="Anthozoa" family="Caryophylliidae" genus="Lophelia" kingdom="Animalia" order="Scleractinia" pageId="4" pageNumber="53" phylum="Cnidaria" rank="species" species="pertusa">
<emphasis id="1F8EEAC7FF959C1FFEADF9A32CE05874" box="[310,426,1541,1564]" italics="true" pageId="4" pageNumber="53">L. pertusa</emphasis>
</taxonomicName>
, various octocorals, some with associated ophiuroids, and sea anemones; squat lobsters and various demersal fishes were also observed at this site. The 
<typeStatus id="F2418877FF959C1FFC15F98F2EA45829" box="[910,1006,1577,1601]" pageId="4" pageNumber="53" type="paratype">paratype</typeStatus>
was collected near a tilefish burrow located in a low relief mud bank. The bottom adjacent to and above the burrow was carbonate rock, covered with mud and cobble; pencil urchins (
<taxonomicName id="EAFA4D56FF959C1FFD9FF9D62F3F58E0" box="[516,629,1648,1672]" class="Echinoidea" family="Cidaridae" kingdom="Animalia" order="Cidaroida" pageId="4" pageNumber="53" phylum="Echinodermata" rank="family">Cidaridae</taxonomicName>
) and anemones were common throughout the area.
</paragraph>
</subSubSection>
<subSubSection id="65E0655EFF959C1FFF5CF933296F5908" pageId="4" pageNumber="53" type="discussion">
<paragraph id="2D4536D5FF959C1FFF5CF933296F5908" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
<emphasis id="1F8EEAC7FF959C1FFF5CF9332C7158C5" bold="true" box="[199,315,1685,1709]" pageId="4" pageNumber="53">Remarks.</emphasis>
The new species clearly belongs to the 
<taxonomicName id="EAFA4D56FF959C1FFCBFF93229A458C4" authority="Hailstone, 1835" authorityName="Hailstone" authorityYear="1835" box="[804,1262,1684,1708]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF959C1FFCBFF932295258C4" box="[804,1048,1684,1708]" italics="true" pageId="4" pageNumber="53">Alpheus macrocheles</emphasis>
(Hailstone, 1835)
</taxonomicName>
group defined mainly by the shape of the major chela, usually with two sharply ending crests on the palm and a flattened, somewhat twisted dactylus; in addition, most species also have well-developed, acute orbital teeth (see 
<bibRefCitation id="496B4B24FF959C1FFB74F97B2DB75970" author="Banner" pageId="4" pageNumber="53" 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." type="journal article" year="1982">Banner &amp; Banner 1982</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF959C1FFE92F8A62CAF5970" author="Kim" box="[265,485,1792,1816]" pageId="4" pageNumber="53" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
). This group is represented by 11 species in the Atlantic Ocean, seven of them in the western Atlantic and four in the eastern and central Atlantic. At least six Atlantic species have been collected at depths below 
<quantity id="EA029B30FF959C1FFEA9F8EE2C335908" box="[306,377,1864,1888]" metricMagnitude="2" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="53" unit="m" value="100.0">100 m</quantity>
(
<bibRefCitation id="496B4B24FF959C1FFE1CF8EE2FDC5908" author="Crosnier" box="[391,662,1864,1888]" pageId="4" pageNumber="53" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF959C1FFD3AF8EE2E635908" author="Chace" box="[673,809,1864,1888]" pageId="4" pageNumber="53" refString="Chace, F. A. Jr. (1972) The shrimps of the Smithsonian-Bredin Caribbean expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia). Smithsonian Contributions to Zoology, 98, i - x + 1 - 179." type="journal article" year="1972">Chace 1972</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF959C1FFCAEF8EE29525908" author="Christoffersen" box="[821,1048,1864,1888]" pageId="4" pageNumber="53" refString="Christoffersen, M. L. (1979) Decapod Crustacea: Alpheoidea. Campagnes de la Calypso au large des cotes Atlantiques de l'Amerique du Sud (1961 - 1962). I. Resultats Scientifiques de la Campagne de la Calypso, 11, 297 - 377." type="journal article" year="1979">Christoffersen 1979</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="65E0655EFF959C1DFF5EF8CA29355844" lastPageId="6" lastPageNumber="55" pageId="4" pageNumber="53" type="reference_group">
<paragraph id="2D4536D5FF959C1FFF5EF8CA28525998" blockId="4.[151,1437,676,2032]" pageId="4" pageNumber="53">
<taxonomicName id="EAFA4D56FF959C1FFF5EF8CA2F2059EC" ID-CoL="85LN8" authority="Christoffersen, 1979" authorityName="Christoffersen" authorityYear="1979" box="[197,618,1900,1924]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="species" species="pouang">
<emphasis id="1F8EEAC7FF959C1FFF5EF8CA2C3059EC" box="[197,378,1900,1924]" italics="true" pageId="4" pageNumber="53">Alpheus pouang</emphasis>
<bibRefCitation id="496B4B24FF959C1FFE19F8CA2F2059EC" author="Christoffersen" box="[386,618,1900,1924]" pageId="4" pageNumber="53" refString="Christoffersen, M. L. (1979) Decapod Crustacea: Alpheoidea. Campagnes de la Calypso au large des cotes Atlantiques de l'Amerique du Sud (1961 - 1962). I. Resultats Scientifiques de la Campagne de la Calypso, 11, 297 - 377." type="journal article" year="1979">Christoffersen, 1979</bibRefCitation>
</taxonomicName>
, a deep-water species from southern 
<collectingCountry id="55ED7645FF959C1FFB97F8CA291A59EC" box="[1036,1104,1900,1924]" name="Brazil" pageId="4" pageNumber="53">Brazil</collectingCountry>
and 
<collectingCountry id="55ED7645FF959C1FFB1CF8CB29A059ED" box="[1159,1258,1901,1925]" name="Uruguay" pageId="4" pageNumber="53">Uruguay</collectingCountry>
, differs from 
<taxonomicName id="EAFA4D56FF959C1FFA1FF8CA2C5459C0" ID-CoL="85LKK" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="4" pageNumber="53" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF959C1FFA1FF8CA2C5459C0" italics="true" pageId="4" pageNumber="53">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF959C1FFEBDF8362C2C59C0" bold="true" box="[294,358,1936,1960]" pageId="4" pageNumber="53">
<taxonomicNameLabel id="04BD57BCFF959C1FFEBDF8362C2C59C0" box="[294,358,1936,1960]" pageId="4" pageNumber="53" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the much deeper subtriangular indentations on the anterior margin of the carapace, between the rostrum and the orbital hoods; the more pronounced longitudinal groove on the lateral palmar surface of the minor chela; and the shorter, less twisted dactylus of the major chela (see 
<bibRefCitation id="496B4B24FF959C1FFC4AF87E29FE5998" author="Christoffersen" box="[977,1204,2008,2032]" pageId="4" pageNumber="53" refString="Christoffersen, M. L. (1979) Decapod Crustacea: Alpheoidea. Campagnes de la Calypso au large des cotes Atlantiques de l'Amerique du Sud (1961 - 1962). I. Resultats Scientifiques de la Campagne de la Calypso, 11, 297 - 377." type="journal article" year="1979">Christoffersen 1979</bibRefCitation>
: fig. 15).
</paragraph>
<paragraph id="2D4536D5FF949C1EFF5EFF3E28135F74" blockId="5.[151,1437,151,2012]" pageId="5" pageNumber="54">
<taxonomicName id="EAFA4D56FF949C1EFF5EFF3E2F325EC7" ID-CoL="85LNG" authority="Christoffersen, 1979" authorityName="Christoffersen" authorityYear="1979" box="[197,632,151,176]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="puapeba">
<emphasis id="1F8EEAC7FF949C1EFF5EFF3E2CCD5ED8" box="[197,391,152,176]" italics="true" pageId="5" pageNumber="54">Alpheus puapeba</emphasis>
<bibRefCitation id="496B4B24FF949C1EFE14FF312F325EC7" author="Christoffersen" box="[399,632,151,175]" pageId="5" pageNumber="54" refString="Christoffersen, M. L. (1979) Decapod Crustacea: Alpheoidea. Campagnes de la Calypso au large des cotes Atlantiques de l'Amerique du Sud (1961 - 1962). I. Resultats Scientifiques de la Campagne de la Calypso, 11, 297 - 377." type="journal article" year="1979">Christoffersen, 1979</bibRefCitation>
</taxonomicName>
, another deep-water species distributed from southern 
<collectingCountry id="55ED7645FF949C1EFB78FF31286D5EC7" box="[1251,1319,151,175]" name="Brazil" pageId="5" pageNumber="54">Brazil</collectingCountry>
to 
<collectingCountry id="55ED7645FF949C1EFAD6FF3E2D8E5EBC" name="Argentina" pageId="5" pageNumber="54">Argentina</collectingCountry>
, shares with 
<taxonomicName id="EAFA4D56FF949C1EFEC2FF1A2F4B5EBC" ID-CoL="85LKK" box="[345,513,188,212]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFEC2FF1A2F4B5EBC" box="[345,513,188,212]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFD91FF1A2F005EBC" bold="true" box="[522,586,188,212]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFD91FF1A2F005EBC" box="[522,586,188,212]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
a similar rostro-orbital region, but the former species can be easily distinguished from the new species by the dorsally non-expanded finger of the minor cheliped and the more pronounced and overhanging shoulder on the ventral palmar margin of the major chela (see 
<bibRefCitation id="496B4B24FF949C1EFB89FEA229BF5F74" author="Christoffersen" box="[1042,1269,260,284]" pageId="5" pageNumber="54" refString="Christoffersen, M. L. (1979) Decapod Crustacea: Alpheoidea. Campagnes de la Calypso au large des cotes Atlantiques de l'Amerique du Sud (1961 - 1962). I. Resultats Scientifiques de la Campagne de la Calypso, 11, 297 - 377." type="journal article" year="1979">Christoffersen 1979</bibRefCitation>
: fig. 16).
</paragraph>
<paragraph id="2D4536D5FF949C1EFF5EFE8E296E5CEC" blockId="5.[151,1437,151,2012]" pageId="5" pageNumber="54">
<taxonomicName id="EAFA4D56FF949C1EFF5EFE8E2F725F57" ID-CoL="84W6H" authority="Chace, 1972" authorityName="Chace" authorityYear="1972" box="[197,568,295,320]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="amblyonyx">
<emphasis id="1F8EEAC7FF949C1EFF5EFE8E2CEA5F28" box="[197,416,296,320]" italics="true" pageId="5" pageNumber="54">Alpheus amblyonyx</emphasis>
<bibRefCitation id="496B4B24FF949C1EFE33FE812F725F57" author="Chace" box="[424,568,295,319]" pageId="5" pageNumber="54" refString="Chace, F. A. Jr. (1972) The shrimps of the Smithsonian-Bredin Caribbean expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia). Smithsonian Contributions to Zoology, 98, i - x + 1 - 179." type="journal article" year="1972">Chace, 1972</bibRefCitation>
</taxonomicName>
, a western Atlantic shallow-water species, differs from 
<taxonomicName id="EAFA4D56FF949C1EFB36FE8E281E5F28" ID-CoL="85LKK" box="[1197,1364,296,320]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFB36FE8E281E5F28" box="[1197,1364,296,320]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFAC7FE8E28D15F28" bold="true" box="[1372,1435,296,320]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFAC7FE8E28D15F28" box="[1372,1435,296,320]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the stouter third to fifth pereiopods; stouter antennular peduncles; and the shorter and dorsally non-expanded dactylus of the minor chela (see 
<bibRefCitation id="496B4B24FF949C1EFD92FEC92FD95FEF" author="Chace" box="[521,659,367,391]" pageId="5" pageNumber="54" refString="Chace, F. A. Jr. (1972) The shrimps of the Smithsonian-Bredin Caribbean expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia). Smithsonian Contributions to Zoology, 98, i - x + 1 - 179." type="journal article" year="1972">Chace 1972</bibRefCitation>
: fig. 16). Williams’ (1988) material from Veatch Canyon (off Rhode Island) and off eastern Florida tentatively assigned to 
<taxonomicName id="EAFA4D56FF949C1EFD68FE322EFA5FC4" ID-CoL="84W6H" box="[755,944,404,428]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="amblyonyx">
<emphasis id="1F8EEAC7FF949C1EFD68FE322E415FC4" box="[755,779,404,428]" italics="true" pageId="5" pageNumber="54">A.</emphasis>
cf. 
<emphasis id="1F8EEAC7FF949C1EFCADFE322EFA5FC4" box="[822,944,404,428]" italics="true" pageId="5" pageNumber="54">amblyonyx</emphasis>
</taxonomicName>
needs re-examination. Several morphological differences and a different habitat suggest that this material does not represent 
<taxonomicName id="EAFA4D56FF949C1EFBFEFE1E2DAE5F9C" ID-CoL="84W6H" authority="Chace (1972)" authorityName="Chace" authorityYear="1972" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="amblyonyx">
<emphasis id="1F8EEAC7FF949C1EFBFEFE1E28015FB8" box="[1125,1355,440,464]" italics="true" pageId="5" pageNumber="54">A. amblyonyx sensu</emphasis>
<bibRefCitation id="496B4B24FF949C1EFACDFE112DAE5F9C" author="Chace" pageId="5" pageNumber="54" refString="Chace, F. A. Jr. (1972) The shrimps of the Smithsonian-Bredin Caribbean expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia). Smithsonian Contributions to Zoology, 98, i - x + 1 - 179." type="journal article" year="1972">Chace (1972)</bibRefCitation>
</taxonomicName>
. Interestingly, some of Williams’ (1988) specimens were collected from burrows of the blue-line (= grey) tilefish 
<taxonomicName id="EAFA4D56FF949C1EFF77FDA62EC75C7F" ID-CoL="5XF7X" authority="Goode &amp; Bean, 1878" authorityName="Goode &amp; Bean" authorityYear="1878" box="[236,909,511,536]" class="Actinopterygii" family="Malacanthidae" genus="Caulolatilus" kingdom="Animalia" order="Perciformes" pageId="5" pageNumber="54" phylum="Chordata" rank="species" species="microps">
<emphasis id="1F8EEAC7FF949C1EFF77FDA62C9D5C70" box="[236,471,512,536]" italics="true" pageId="5" pageNumber="54">Caulolatilus microps</emphasis>
Goode &amp; Bean, 1878 (Malacanthidae)
</taxonomicName>
[remark: the 
<typeStatus id="F2418877FF949C1EFBBCFDA629C25C70" box="[1063,1160,512,536]" pageId="5" pageNumber="54" type="paratype">paratype</typeStatus>
of 
<taxonomicName id="EAFA4D56FF949C1EFB35FDA6281E5C70" ID-CoL="85LKK" box="[1198,1364,512,536]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFB35FDA6281E5C70" box="[1198,1364,512,536]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFAC7FDA628D65C70" bold="true" box="[1372,1436,512,536]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFAC7FDA628D65C70" box="[1372,1436,512,536]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
was found close to a tilefish burrow]. 
<bibRefCitation id="496B4B24FF949C1EFDDAFD822F815C54" author="Gore" box="[577,715,548,572]" pageId="5" pageNumber="54" refString="Gore, R. H. (1981) Three new shrimps, and some interesting new records of decapod Crustacea from a deep-water coral reef in the Florida Keys. Proceedings of the Biological Society of Washington, 94, 135 - 162." type="journal article" year="1981">Gore (1981)</bibRefCitation>
briefly mentioned deep-water material from Florida assigned to 
<taxonomicName id="EAFA4D56FF949C1EFF0CFDEE2C7B5C08" ID-CoL="84W6H" box="[151,305,584,608]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="amblyonyx">
<emphasis id="1F8EEAC7FF949C1EFF0CFDEE2C7B5C08" box="[151,305,584,608]" italics="true" pageId="5" pageNumber="54">A. amblyonyx</emphasis>
</taxonomicName>
, however, from depths significantly exceeding the normal depth range of this species in the Caribbean (
<bibRefCitation id="496B4B24FF949C1EFF41FDCA2F7A5CEC" author="Chace" box="[218,560,620,644]" pageId="5" pageNumber="54" refString="Chace, F. A. Jr. (1972) The shrimps of the Smithsonian-Bredin Caribbean expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia). Smithsonian Contributions to Zoology, 98, i - x + 1 - 179." type="journal article" year="1972">Chace 1972; Anker, pers. obs.</bibRefCitation>
); this material also needs to be re-examined.
</paragraph>
<paragraph id="2D4536D5FF949C1EFF5EFD362F165D5F" blockId="5.[151,1437,151,2012]" pageId="5" pageNumber="54">
<taxonomicName id="EAFA4D56FF949C1EFF5EFD362F215CCF" ID-CoL="85LN2" authority="Coutiere, 1897" authorityName="Coutiere" authorityYear="1897" box="[197,619,655,680]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="platydactylus">
<emphasis id="1F8EEAC7FF949C1EFF5EFD362CF15CC0" box="[197,443,656,680]" italics="true" pageId="5" pageNumber="54">Alpheus platydactylus</emphasis>
Coutière, 1897
</taxonomicName>
, a deep-water species from the northeastern Atlantic, differs from 
<taxonomicName id="EAFA4D56FF949C1EFACAFD362DB65CA4" ID-CoL="85LKK" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFACAFD362DB65CA4" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFE98FD122C085CA4" bold="true" box="[259,322,692,716]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFE98FD122C085CA4" box="[259,322,692,716]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the dorsally non-expanded dactylus of the minor chela; the deeper subtriangular indentations on the anterior margin of the carapace, between the rostrum and the orbital hoods; and the more slender antennular peduncles (second article with length–width ratio&gt; 
<quantity id="EA029B30FF949C1EFD45FD5A2E405D7C" box="[734,778,764,788]" metricMagnitude="-1" metricUnit="m" metricValue="1.016" pageId="5" pageNumber="54" unit="in" value="4.0">4 in</quantity>
<taxonomicName id="EAFA4D56FF949C1EFC89FD5A2E8D5D7C" ID-CoL="85LN2" box="[786,967,764,788]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="platydactylus">
<emphasis id="1F8EEAC7FF949C1EFC89FD5A2E8D5D7C" box="[786,967,764,788]" italics="true" pageId="5" pageNumber="54">A. platydactylus</emphasis>
</taxonomicName>
(see 
<bibRefCitation id="496B4B24FF949C1EFB9EFD5A285C5D7C" author="Crosnier" box="[1029,1302,764,788]" pageId="5" pageNumber="54" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
: fig. 2e) vs. 4&lt;in 
<taxonomicName id="EAFA4D56FF949C1EFF43FC862C345D50" ID-CoL="85LKK" box="[216,382,800,824]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFF43FC862C345D50" box="[216,382,800,824]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFE1DFC862C8E5D50" bold="true" box="[390,452,800,824]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFE1DFC862C8E5D50" box="[390,452,800,824]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, see 
<figureCitation id="B5C12A50FF949C1EFE65FCB92F775D5F" box="[510,573,799,823]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="5" pageNumber="54">Fig. 1</figureCitation>
a).
</paragraph>
<paragraph id="2D4536D5FF949C1EFF5EFCE229965A67" blockId="5.[151,1437,151,2012]" pageId="5" pageNumber="54">
The eastern and central Atlantic 
<taxonomicName id="EAFA4D56FF949C1EFDAFFCE22EA45D34" ID-CoL="84W8H" authority="Hailstone, 1835" authorityName="Hailstone" authorityYear="1835" box="[564,1006,836,860]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF949C1EFDAFFCE22E6B5D34" box="[564,801,836,860]" italics="true" pageId="5" pageNumber="54">Alpheus macrocheles</emphasis>
(Hailstone, 1835)
</taxonomicName>
is closely related to 
<taxonomicName id="EAFA4D56FF949C1EFB4CFCE228375D34" ID-CoL="85LKK" box="[1239,1405,836,860]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFB4CFCE228375D34" box="[1239,1405,836,860]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFA1EFCE22DF25DE8" bold="true" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFA1EFCE22DF25DE8" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, but is distinguishable by the shorter, stouter major chela (see 
<bibRefCitation id="496B4B24FF949C1EFC0FFCC129E35D17" author="Crosnier" box="[916,1193,871,896]" pageId="5" pageNumber="54" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
: fig. 2b), and stouter antennular peduncles (second article with length–width ratio 
<quantity id="EA029B30FF949C1EFCC0FC2A2E9A5DCC" box="[859,976,908,932]" metricMagnitude="-2" metricUnit="m" metricValue="6.096" metricValueMax="6.35" metricValueMin="5.842" pageId="5" pageNumber="54" unit="in" value="2.4" valueMax="2.5" valueMin="2.3">2.3–2.5 in</quantity>
<taxonomicName id="EAFA4D56FF949C1EFC41FC2A29C35DCC" ID-CoL="84W8H" box="[986,1161,908,932]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF949C1EFC41FC2A29C35DCC" box="[986,1161,908,932]" italics="true" pageId="5" pageNumber="54">A. macrocheles</emphasis>
</taxonomicName>
(see 
<bibRefCitation id="496B4B24FF949C1EFB50FC2A2D995DAF" author="Crosnier" pageId="5" pageNumber="54" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
: fig. 2a) vs. 
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<taxonomicName id="EAFA4D56FF949C1EFE42FC162FCB5DA0" ID-CoL="85LKK" box="[473,641,944,968]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFE42FC162FCB5DA0" box="[473,641,944,968]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFD11FC162F815DA0" bold="true" box="[650,715,944,968]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFD11FC162F815DA0" box="[650,715,944,968]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
, see 
<figureCitation id="B5C12A50FF949C1EFC9CFC092E0D5DAF" box="[775,839,943,967]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="5" pageNumber="54">Fig. 1</figureCitation>
a). 
<taxonomicName id="EAFA4D56FF949C1EFCF4FC1629155DA0" ID-CoL="84W8H" box="[879,1119,944,968]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF949C1EFCF4FC1629155DA0" box="[879,1119,944,968]" italics="true" pageId="5" pageNumber="54">Alpheus macrocheles</emphasis>
</taxonomicName>
is normally found from the lower intertidal down to about 
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(
<bibRefCitation id="496B4B24FF949C1EFDA0FC722E065D84" author="Crosnier" box="[571,844,980,1004]" pageId="5" pageNumber="54" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
), but was also reported from a considerable depth of 
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(
<bibRefCitation id="496B4B24FF949C1EFF62FC512C825A67" author="Garcia" box="[249,456,1015,1040]" pageId="5" pageNumber="54" refString="Garcia Raso, J. E. (1996) Crustacea Decapoda (excl. Sergestidae) from Ibero-Moroccan waters. Results of Balgim- 84 expedition. Bulletin of Marine Science, 58, 730 - 752." type="journal article" year="1996">Garcia Raso 1996</bibRefCitation>
), which raises questions about the accuracy of the latter identification.
</paragraph>
<paragraph id="2D4536D5FF949C1EFF5EFBBA2C185844" blockId="5.[151,1437,151,2012]" pageId="5" pageNumber="54">
All the other Atlantic species of the 
<taxonomicName id="EAFA4D56FF949C1EFDF8FBBA2E1B5A5C" ID-CoL="84W8H" box="[611,849,1052,1076]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF949C1EFDF8FBBA2E1B5A5C" box="[611,849,1052,1076]" italics="true" pageId="5" pageNumber="54">Alpheus macrocheles</emphasis>
</taxonomicName>
group are only distantly related to the new species. For instance, the western Atlantic 
<taxonomicName id="EAFA4D56FF949C1EFD84FBE62EA05A30" ID-CoL="85LJP" authority="Wicksten &amp; McClure, 2003" authorityName="Wicksten &amp; McClure" authorityYear="2003" box="[543,1002,1088,1112]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="hortensis">
<emphasis id="1F8EEAC7FF949C1EFD84FBE62FED5A30" box="[543,679,1088,1112]" italics="true" pageId="5" pageNumber="54">A. hortensis</emphasis>
<bibRefCitation id="496B4B24FF949C1EFD34FBE62EA05A30" author="Wicksten" box="[687,1002,1088,1112]" pageId="5" pageNumber="54" refString="Wicksten, M. K. &amp; McClure, M. R. (2003) A new species of Alpheus from the Gulf of Mexico. Crustacean Research, 32, 26 - 31." type="journal article" year="2003">Wicksten &amp; McClure, 2003</bibRefCitation>
</taxonomicName>
and the eastern/central Atlantic 
<taxonomicName id="EAFA4D56FF949C1EFAC5FBE62C855A14" ID-CoL="84W7C" authority="Armstrong, 1941" authorityName="Armstrong" authorityYear="1941" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="crockeri">
<emphasis id="1F8EEAC7FF949C1EFAC5FBE6283C5A30" box="[1374,1398,1088,1112]" italics="true" pageId="5" pageNumber="54">A.</emphasis>
cf. 
<emphasis id="1F8EEAC7FF949C1EFF0CFBC22DB95A14" box="[151,243,1124,1148]" italics="true" pageId="5" pageNumber="54">crockeri</emphasis>
(Armstrong, 1941)
</taxonomicName>
, two closely related species associated with shallow to moderately deep hard bottoms, differ from 
<taxonomicName id="EAFA4D56FF949C1EFE83FB2E2CF45AC8" ID-CoL="85LKK" box="[280,446,1160,1184]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFE83FB2E2CF45AC8" box="[280,446,1160,1184]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFE5EFB2E2F4E5AC8" bold="true" box="[453,516,1160,1184]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFE5EFB2E2F4E5AC8" box="[453,516,1160,1184]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the smooth dorsal and ventral margins of the palm of the major chela and slen- der, dorsally non-expanded dactylus of the minor chela (see 
<bibRefCitation id="496B4B24FF949C1EFCD8FB0A29195AAC" author="Crosnier" box="[835,1107,1196,1220]" pageId="5" pageNumber="54" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
: fig. 5; 
<bibRefCitation id="496B4B24FF949C1EFB31FB0A2D995A80" author="Wicksten" pageId="5" pageNumber="54" refString="Wicksten, M. K. &amp; McClure, M. R. (2003) A new species of Alpheus from the Gulf of Mexico. Crustacean Research, 32, 26 - 31." type="journal article" year="2003">Wicksten &amp; McClure 2003</bibRefCitation>
: fig. 2). The eastern Atlantic 
<taxonomicName id="EAFA4D56FF949C1EFDBEFB762EF75A80" ID-CoL="85LGZ" authority="Guerin-Meneville, 1832" authorityName="Guerin-Meneville" authorityYear="1832" box="[549,957,1232,1256]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="dentipes">
<emphasis id="1F8EEAC7FF949C1EFDBEFB762FE95A80" box="[549,675,1232,1256]" italics="true" pageId="5" pageNumber="54">A. dentipes</emphasis>
Guérin-Méneville, 1832
</taxonomicName>
and the western Atlantic 
<taxonomicName id="EAFA4D56FF949C1EFB7FFB762C645B64" ID-CoL="84W8Y" authority="Armstrong, 1940" authorityName="Armstrong" authorityYear="1940" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="peasei">
<emphasis id="1F8EEAC7FF949C1EFB7FFB7628075A80" box="[1252,1357,1232,1256]" italics="true" pageId="5" pageNumber="54">A. peasei</emphasis>
(Armstrong, 1940)
</taxonomicName>
, both mostly subtidal, can be easily separated from the new species by the shape of the frontal region and the presence of a stout distoventral tooth on the merus of third and fourth pereiopods (see 
<bibRefCitation id="496B4B24FF949C1EFB54FABE2D995B3C" author="Crosnier" pageId="5" pageNumber="54" refString="Crosnier, A. &amp; Forest, J. (1966) Crustaces decapodes: Alpheidae. In: Campagnes de la Calypso dans le Golfe de Guinee et aux Iles Principe, Sao Tome et Annobon (1956), et Campagne aux Iles du Cap Vert (1959). Part 19: Resultats Scientifiques des Campagnes de la Calypso 7 (27). Annales de l'Institut Oceanographique de Monaco, 44, 199 - 314." type="journal article" year="1966">Crosnier &amp; Forest 1966</bibRefCitation>
: fig. 3; 
<bibRefCitation id="496B4B24FF949C1EFEB7FA9A2C995B3C" author="McClure" box="[300,467,1340,1364]" pageId="5" pageNumber="54" refString="McClure, M. R. (2005) Snapping shrimps. In: Hernandez-Aguilera, J. L., Ruiz Nuno, J. A., Toral-Almazan, R. E., &amp; Arenas- Fuentes, V. (eds.), Camarones, langostas cangrejos de la costa este de Mexico, Vol. 1. Econatura - CONABIO, Mexico." type="book" year="2005">McClure 2005</bibRefCitation>
: fig. 20). 
<taxonomicName id="EAFA4D56FF949C1EFDD8FA9A2EF65B3C" ID-CoL="85LQS" authority="Boone, 1930" authorityName="Boone" authorityYear="1930" box="[579,956,1340,1364]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="vanderbilti">
<emphasis id="1F8EEAC7FF949C1EFDD8FA9A2E6A5B3C" box="[579,800,1340,1364]" italics="true" pageId="5" pageNumber="54">Alpheus vanderbilti</emphasis>
Boone, 1930
</taxonomicName>
, an amphi-Atlantic shallow-water species, differs from 
<taxonomicName id="EAFA4D56FF949C1EFEBFFAC62C815B10" ID-CoL="85LKK" box="[292,459,1376,1400]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFEBFFAC62C815B10" box="[292,459,1376,1400]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFE49FAC62F5B5B10" bold="true" box="[466,529,1376,1400]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFE49FAC62F5B5B10" box="[466,529,1376,1400]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
in many features, the most obvious ones being the reduced orbital teeth and rostrum, the cylindrical major chela, without much sculpture, and the slender, gradually curving fingers of the minor chela (see 
<bibRefCitation id="496B4B24FF949C1EFE8BFA012C905BD7" author="Anker" box="[272,474,1447,1471]" pageId="5" pageNumber="54" refString="Anker, A., Hurt, C., Jara, J. &amp; Knowlton, N. (2008) Revision of the Alpheus cylindricus Kingsley, 1878 species complex (Crustacea: Decapoda: Alpheidae), with revalidation of A. vanderbilti Boone, 1930. Zootaxa, 1943, 53 - 68." type="journal article" year="2008">Anker et al. 2008</bibRefCitation>
: fig. 2). Finally, the poorly known 
<taxonomicName id="EAFA4D56FF949C1EFCF3FA0E29A65BD7" ID-CoL="84W75" authority="Guerin-Meneville, 1855" authorityName="Guerin-Meneville" authorityYear="1855" box="[872,1260,1447,1472]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="candei">
<emphasis id="1F8EEAC7FF949C1EFCF3FA0E2E9E5BA8" box="[872,980,1448,1472]" italics="true" pageId="5" pageNumber="54">A. candei</emphasis>
Guérin-Méneville, 1855
</taxonomicName>
differs from 
<taxonomicName id="EAFA4D56FF949C1EFA1FFA0E2C545B8C" ID-CoL="85LKK" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFA1FFA0E2C545B8C" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFEB3FA6A2C205B8C" bold="true" box="[296,362,1484,1508]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFEB3FA6A2C205B8C" box="[296,362,1484,1508]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the pronounced rostral carina and a markedly biunguiculate dactylus on the third to fifth pereiopods (see 
<bibRefCitation id="496B4B24FF949C1EFED4FA492CB9586F" author="Coutiere" box="[335,499,1519,1543]" pageId="5" pageNumber="54" refString="Coutiere, H. (1910) The snapping shrimps (Alpheidae) of the Dry Tortugas, Florida. Proceedings of the United States National Museum, 37, 485 - 487." type="journal article" year="1910">Coutière 1910</bibRefCitation>
: fig. 1), which only bears a minute dent on the ventral margin in 
<taxonomicName id="EAFA4D56FF949C1EFB4DFA5628345860" ID-CoL="85LKK" box="[1238,1406,1520,1544]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFB4DFA5628345860" box="[1238,1406,1520,1544]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFA1EFA562DF25844" bold="true" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFA1EFA562DF25844" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
(see 
<figureCitation id="B5C12A50FF949C1EFF68F9B22C785844" box="[243,306,1556,1580]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="5" pageNumber="54">
Fig. 
<quantity id="EA029B30FF949C1EFEBCF9B22C785844" box="[295,306,1556,1580]" metricMagnitude="-3" metricUnit="kg" metricValue="1.0" pageId="5" pageNumber="54" unit="g" value="1.0">1</quantity>
</figureCitation>
g).
</paragraph>
<paragraph id="2D4536D5FF949C1DFF5EF9912C7D5F0C" blockId="5.[151,1437,151,2012]" lastBlockId="6.[151,1437,151,1580]" lastPageId="6" lastPageNumber="55" pageId="5" pageNumber="54">
The eastern Pacific is home to seven species of the 
<taxonomicName id="EAFA4D56FF949C1EFCBBF99E295B5838" ID-CoL="84W8H" box="[800,1041,1592,1616]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF949C1EFCBBF99E295B5838" box="[800,1041,1592,1616]" italics="true" pageId="5" pageNumber="54">Alpheus macrocheles</emphasis>
</taxonomicName>
group: 
<taxonomicName id="EAFA4D56FF949C1EFBF6F99E2D98581C" ID-CoL="84W6V" authority="Lockington, 1877" authorityName="Lockington" authorityYear="1877" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="bellimanus">
<emphasis id="1F8EEAC7FF949C1EFBF6F99E28405838" box="[1133,1290,1592,1616]" italics="true" pageId="5" pageNumber="54">A. bellimanus</emphasis>
Lockington, 1877
</taxonomicName>
; 
<taxonomicName id="EAFA4D56FF949C1EFF7AF9FA2F77581C" ID-CoL="85LNP" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" box="[225,573,1628,1652]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="rectus">
<emphasis id="1F8EEAC7FF949C1EFF7AF9FA2C0C581C" box="[225,326,1628,1652]" italics="true" pageId="5" pageNumber="54">A. rectus</emphasis>
<bibRefCitation id="496B4B24FF949C1EFECAF9FA2F77581C" author="Kim" box="[337,573,1628,1652]" pageId="5" pageNumber="54" 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." type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
; 
<taxonomicName id="EAFA4D56FF949C1EFDD7F9FA2E81581C" ID-CoL="85LJN" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" box="[588,971,1628,1652]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="hoonsooi">
<emphasis id="1F8EEAC7FF949C1EFDD7F9FA2F9C581C" box="[588,726,1628,1652]" italics="true" pageId="5" pageNumber="54">A. hoonsooi</emphasis>
<bibRefCitation id="496B4B24FF949C1EFD7BF9FA2E81581C" author="Kim" box="[736,971,1628,1652]" pageId="5" pageNumber="54" 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." type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
; 
<taxonomicName id="EAFA4D56FF949C1EFC40F9FA2870581C" ID-CoL="84W76" authority="Lockington, 1877" authorityName="Lockington" authorityYear="1877" box="[987,1338,1628,1652]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="clamator">
<emphasis id="1F8EEAC7FF949C1EFC40F9FA2928581C" box="[987,1122,1628,1652]" italics="true" pageId="5" pageNumber="54">A. clamator</emphasis>
Lockington, 1877
</taxonomicName>
; 
<taxonomicName id="EAFA4D56FF949C1EFAD2F9FA2C8D58FF" ID-CoL="85LK2" authority="Wicksten &amp; Mendez, 1981" authorityName="Wicksten &amp; Mendez" authorityYear="1981" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="inca">
<emphasis id="1F8EEAC7FF949C1EFAD2F9FA28D1581C" box="[1353,1435,1628,1652]" italics="true" pageId="5" pageNumber="54">A. inca</emphasis>
Wicksten &amp; Méndez, 1981
</taxonomicName>
; 
<taxonomicName id="EAFA4D56FF949C1EFE48F9262FAE58FF" ID-CoL="85LJ7" authority="Abele, 1975" authorityName="Abele" authorityYear="1975" box="[467,740,1663,1688]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="grahami">
<emphasis id="1F8EEAC7FF949C1EFE48F9262F1B58F0" box="[467,593,1664,1688]" italics="true" pageId="5" pageNumber="54">A. grahami</emphasis>
Abele, 1975
</taxonomicName>
; and 
<taxonomicName id="EAFA4D56FF949C1EFCBBF926292558FF" ID-CoL="84W7D" authority="Kingsley, 1878" authorityName="Kingsley" authorityYear="1878" box="[800,1135,1663,1688]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="cylindricus">
<emphasis id="1F8EEAC7FF949C1EFCBBF9262EF658F0" box="[800,956,1664,1688]" italics="true" pageId="5" pageNumber="54">A. cylindricus</emphasis>
Kingsley, 1878
</taxonomicName>
. Two of them, 
<taxonomicName id="EAFA4D56FF949C1EFA8CF92628D658F0" ID-CoL="84W76" box="[1303,1436,1664,1688]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="clamator">
<emphasis id="1F8EEAC7FF949C1EFA8CF92628D658F0" box="[1303,1436,1664,1688]" italics="true" pageId="5" pageNumber="54">A. clamator</emphasis>
</taxonomicName>
and 
<taxonomicName id="EAFA4D56FF949C1EFF5CF9022C2958D4" ID-CoL="84W7D" box="[199,355,1700,1724]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="cylindricus">
<emphasis id="1F8EEAC7FF949C1EFF5CF9022C2958D4" box="[199,355,1700,1724]" italics="true" pageId="5" pageNumber="54">A. cylindricus</emphasis>
</taxonomicName>
, can be distinguished from 
<taxonomicName id="EAFA4D56FF949C1EFD07F9022E0958D4" ID-CoL="85LKK" box="[668,835,1700,1724]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFD07F9022E0958D4" box="[668,835,1700,1724]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFCD0F9022EC058D4" bold="true" box="[843,906,1700,1724]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFCD0F9022EC058D4" box="[843,906,1700,1724]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the same criteria as 
<taxonomicName id="EAFA4D56FF949C1EFB0DF902285958D4" ID-CoL="85LGZ" box="[1174,1299,1700,1724]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="dentipes">
<emphasis id="1F8EEAC7FF949C1EFB0DF902285958D4" box="[1174,1299,1700,1724]" italics="true" pageId="5" pageNumber="54">A. dentipes</emphasis>
</taxonomicName>
and 
<taxonomicName id="EAFA4D56FF949C1EFAD0F9022DA05888" ID-CoL="85LQS" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="vanderbilti">
<emphasis id="1F8EEAC7FF949C1EFAD0F9022DA05888" italics="true" pageId="5" pageNumber="54">A. vanderbilti</emphasis>
</taxonomicName>
, respectively (see above), and are not closely related to 
<taxonomicName id="EAFA4D56FF949C1EFCC6F96E29495888" ID-CoL="85LKK" box="[861,1027,1736,1760]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFCC6F96E29495888" box="[861,1027,1736,1760]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFB90F96E29035888" bold="true" box="[1035,1097,1736,1760]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFB90F96E29035888" box="[1035,1097,1736,1760]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
(see 
<bibRefCitation id="496B4B24FF949C1EFB1EF961282A58B7" author="Kim" box="[1157,1376,1735,1759]" pageId="5" pageNumber="54" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: figs. 9, 19). 
<taxonomicName id="EAFA4D56FF949C1EFF7CF94A2C8E596C" ID-CoL="84W6V" box="[231,452,1772,1796]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="bellimanus">
<emphasis id="1F8EEAC7FF949C1EFF7CF94A2C8E596C" box="[231,452,1772,1796]" italics="true" pageId="5" pageNumber="54">Alpheus bellimanus</emphasis>
</taxonomicName>
can be separated from 
<taxonomicName id="EAFA4D56FF949C1EFD51F94A2E3B596C" ID-CoL="85LKK" box="[714,881,1772,1796]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFD51F94A2E3B596C" box="[714,881,1772,1796]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFCE3F94A2EFD596C" bold="true" box="[888,951,1772,1796]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFCE3F94A2EFD596C" box="[888,951,1772,1796]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the relatively more slender minor chela and the presence of stout spiniform setae on the male second pleopod (see 
<bibRefCitation id="496B4B24FF949C1EFC43F8A929F8594F" author="Kim" box="[984,1202,1807,1831]" pageId="5" pageNumber="54" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 5). 
<taxonomicName id="EAFA4D56FF949C1EFA94F8B62DF25924" ID-CoL="85LNP" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="rectus">
<emphasis id="1F8EEAC7FF949C1EFA94F8B62DF25924" italics="true" pageId="5" pageNumber="54">Alpheus rectus</emphasis>
</taxonomicName>
can be separated from the new species by the shorter, moderately compressed dactylus of the major chela, which also has a distinct plunger (see 
<bibRefCitation id="496B4B24FF949C1EFDA7F8FE2E5F5918" author="Kim" box="[572,789,1880,1904]" pageId="5" pageNumber="54" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 6). 
<taxonomicName id="EAFA4D56FF949C1EFCEBF8FE297D5918" ID-CoL="85LJN" box="[880,1079,1880,1904]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="hoonsooi">
<emphasis id="1F8EEAC7FF949C1EFCEBF8FE297D5918" box="[880,1079,1880,1904]" italics="true" pageId="5" pageNumber="54">Alpheus hoonsooi</emphasis>
</taxonomicName>
is characterised by a slight convexity on the frontal margin between the rostrum and orbital hoods, which is absent in 
<taxonomicName id="EAFA4D56FF949C1EFB1CF8DA287A59FC" ID-CoL="85LKK" box="[1159,1328,1916,1940]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="54" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF949C1EFB1CF8DA287A59FC" box="[1159,1328,1916,1940]" italics="true" pageId="5" pageNumber="54">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF949C1EFAA1F8DA283059FC" bold="true" box="[1338,1402,1916,1940]" pageId="5" pageNumber="54">
<taxonomicNameLabel id="04BD57BCFF949C1EFAA1F8DA283059FC" box="[1338,1402,1916,1940]" pageId="5" pageNumber="54" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
In addition, this species bears a small distoventral tooth on the merus of the third pereiopod, which is lacking in the new species, and also has a more pronounced ventral shoulder on the palm of the minor chela (see 
<bibRefCitation id="496B4B24FF949C1DFA9AF8622D995EC7" author="Kim" lastPageId="6" lastPageNumber="55" pageId="5" pageNumber="54" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 7). 
<taxonomicName id="EAFA4D56FF979C1DFEA3FF3E2C865ED8" ID-CoL="85LK2" box="[312,460,152,176]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="inca">
<emphasis id="1F8EEAC7FF979C1DFEA3FF3E2C865ED8" box="[312,460,152,176]" italics="true" pageId="6" pageNumber="55">Alpheus inca</emphasis>
</taxonomicName>
, a coldwater species from 
<collectingCountry id="55ED7645FF979C1DFC9DFF312E095EC7" box="[774,835,151,175]" name="Chile" pageId="6" pageNumber="55">Chile</collectingCountry>
and 
<collectingCountry id="55ED7645FF979C1DFCE4FF3E2EFF5EC7" box="[895,949,152,175]" name="Peru" pageId="6" pageNumber="55">Peru</collectingCountry>
, differs from 
<taxonomicName id="EAFA4D56FF979C1DFBCEFF3E29B45ED8" ID-CoL="85LKK" box="[1109,1278,152,176]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFBCEFF3E29B45ED8" box="[1109,1278,152,176]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFA93FF3E28005ED8" bold="true" box="[1288,1354,152,176]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFA93FF3E28005ED8" box="[1288,1354,152,176]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
by the shorter orbital teeth, much stouter walking legs (P3–5), as well as several important features on the major and minor chelipeds (see 
<bibRefCitation id="496B4B24FF979C1DFE1DFF792F285E9F" author="Kim" box="[390,610,223,247]" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 9). Finally, 
<taxonomicName id="EAFA4D56FF979C1DFC81FF462ED25E90" ID-CoL="85LJ7" box="[794,920,224,248]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="grahami">
<emphasis id="1F8EEAC7FF979C1DFC81FF462ED25E90" box="[794,920,224,248]" italics="true" pageId="6" pageNumber="55">A. grahami</emphasis>
</taxonomicName>
can be distinguished from the new species by the shape of the frontal margin of the carapace and frontal appendages, proportions of articles in the carpus of the second pereiopod, and most importantly, by the very differently shaped major and minor chelae (see 
<bibRefCitation id="496B4B24FF979C1DFA98FE812D995F0C" author="Kim" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 10).
</paragraph>
<paragraph id="2D4536D5FF979C1DFF5EFED62CEA5D50" blockId="6.[151,1437,151,1580]" pageId="6" pageNumber="55">
<taxonomicName id="EAFA4D56FF979C1DFF5EFED62F0E5FEF" ID-CoL="85LHJ" authority="Kim &amp; Abele, 1988" authorityName="Kim &amp; Abele" authorityYear="1988" box="[197,580,367,392]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFF5EFED62C2A5FE0" box="[197,352,368,392]" italics="true" pageId="6" pageNumber="55">Alpheus exilis</emphasis>
<bibRefCitation id="496B4B24FF979C1DFEFCFEC92F0E5FEF" author="Kim" box="[359,580,367,391]" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele, 1988</bibRefCitation>
</taxonomicName>
was described based on two incomplete specimens from Baja California and Galapagos, both missing their major and minor chelipeds (
<bibRefCitation id="496B4B24FF979C1DFCA9FE32295E5FC4" author="Kim" box="[818,1044,404,428]" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
). No other specimens matching 
<taxonomicName id="EAFA4D56FF979C1DFA1FFE322D985FB8" ID-CoL="85LHJ" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFA1FFE322D985FB8" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
have been collected so far and it remains unknown to which species group of 
<taxonomicName id="EAFA4D56FF979C1DFBFBFE1E29F05FB8" ID-CoL="84LB5" box="[1120,1210,440,464]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="genus">
<emphasis id="1F8EEAC7FF979C1DFBFBFE1E29F05FB8" box="[1120,1210,440,464]" italics="true" pageId="6" pageNumber="55">Alpheus</emphasis>
</taxonomicName>
it actually belongs. Perhaps the best diagnostic character of 
<taxonomicName id="EAFA4D56FF979C1DFDC2FE7A2FF95F9C" ID-CoL="85LHJ" box="[601,691,476,500]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFDC2FE7A2FF95F9C" box="[601,691,476,500]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
is the presence of very dense setae on the coxal lateral plate of the third maxilliped (see 
<bibRefCitation id="496B4B24FF979C1DFE1CFE592F2E5C7F" author="Kim" box="[391,612,511,535]" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 45d). These setae are also present in 
<taxonomicName id="EAFA4D56FF979C1DFBA6FDA629A95C70" ID-CoL="85LKK" box="[1085,1251,512,536]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFBA6FDA629A95C70" box="[1085,1251,512,536]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="04BD57BCFF979C1DFB70FDA628615C70" box="[1259,1323,512,536]" pageId="6" pageNumber="55" rank="species">
<emphasis id="1F8EEAC7FF979C1DFB70FDA628615C70" bold="true" box="[1259,1323,512,536]" pageId="6" pageNumber="55">n. sp.</emphasis>
</taxonomicNameLabel>
(
<figureCitation id="B5C12A50FF979C1DFAA0FE5928315C7F" box="[1339,1403,511,535]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="6" pageNumber="55">Fig. 1</figureCitation>
d), although in the new species they are not as dense as in 
<taxonomicName id="EAFA4D56FF979C1DFD66FD822E1D5C54" ID-CoL="85LHJ" box="[765,855,548,572]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFD66FD822E1D5C54" box="[765,855,548,572]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
. Another feature that may link 
<taxonomicName id="EAFA4D56FF979C1DFB2DFD82285A5C54" ID-CoL="85LHJ" box="[1206,1296,548,572]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFB2DFD82285A5C54" box="[1206,1296,548,572]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
to 
<taxonomicName id="EAFA4D56FF979C1DFAAFFD822D955C08" ID-CoL="85LKK" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFAAFFD822D955C08" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFF7EFDEE2C6E5C08" bold="true" box="[229,292,584,608]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFF7EFDEE2C6E5C08" box="[229,292,584,608]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
is the presence of a minute dent on the dactylus of the third pereiopod (
<figureCitation id="B5C12A50FF979C1DFBDDFDE129CC5C37" box="[1094,1158,583,607]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="6" pageNumber="55">
Fig. 
<quantity id="EA029B30FF979C1DFBE1FDE129CC5C37" box="[1146,1158,583,607]" metricMagnitude="-3" metricUnit="kg" metricValue="1.0" pageId="6" pageNumber="55" unit="g" value="1.0">1</quantity>
</figureCitation>
g; see also 
<bibRefCitation id="496B4B24FF979C1DFA9FFDE12D995CEC" author="Kim" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 
<quantity id="EA029B30FF979C1DFE91FDCA2C725CEC" box="[266,312,620,644]" metricMagnitude="-2" metricUnit="kg" metricValue="4.5" pageId="6" pageNumber="55" unit="g" value="45.0">45g</quantity>
). In addition, 
<taxonomicName id="EAFA4D56FF979C1DFE4FFDCA2F645CEC" ID-CoL="85LHJ" box="[468,558,620,644]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFE4FFDCA2F645CEC" box="[468,558,620,644]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
is also a deep-water species, with the depth range of 
<quantity id="EA029B30FF979C1DFB18FDCA29BD5CEC" box="[1155,1271,620,644]" metricMagnitude="2" metricUnit="m" metricValue="1.05" metricValueMax="1.46" metricValueMin="0.64" pageId="6" pageNumber="55" unit="m" value="105.0" valueMax="146.0" valueMin="64.0">
64– 
<specimenCount id="3BFCFD5CFF979C1DFB35FDCA29BD5CEC" box="[1198,1271,620,644]" pageId="6" pageNumber="55" type="generic">146 m</specimenCount>
</quantity>
. The main difference between 
<taxonomicName id="EAFA4D56FF979C1DFECEFD362CE55CC0" ID-CoL="85LHJ" box="[341,431,656,680]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFECEFD362CE55CC0" box="[341,431,656,680]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
and 
<taxonomicName id="EAFA4D56FF979C1DFE7DFD362FC65CC0" ID-CoL="85LKK" box="[486,652,656,680]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFE7DFD362FC65CC0" box="[486,652,656,680]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFD0FFD362F995CC0" bold="true" box="[660,723,656,680]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFD0FFD362F995CC0" box="[660,723,656,680]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
lies in the shape of the frontal margin of the carapace: the margin between the rostrum and orbital hoods is slightly more deeply indented in 
<taxonomicName id="EAFA4D56FF979C1DFBB3FD1229CF5CA4" ID-CoL="85LHJ" box="[1064,1157,692,716]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFBB3FD1229CF5CA4" box="[1064,1157,692,716]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
, whereas the rostrum is somewhat broader in 
<taxonomicName id="EAFA4D56FF979C1DFE13FD7E2F645C98" ID-CoL="85LKK" box="[392,558,728,752]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFE13FD7E2F645C98" box="[392,558,728,752]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFDAEFD7E2F395C98" bold="true" box="[565,627,728,752]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFDAEFD7E2F395C98" box="[565,627,728,752]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
(compare 
<figureCitation id="B5C12A50FF979C1DFD70FD712E635C87" box="[747,809,727,751]" captionStart="FIGURE 1" captionStartId="2.[151,250,1763,1786]" captionTargetBox="[176,1427,373,1727]" captionTargetId="figure@2.[151,1436,373,1742]" captionTargetPageId="2" captionText="FIGURE 1. Alpheus lentiginosus n. sp., holotype male (a – k), paratype female (l – n), from northern Gulf of Mexico: a, anterior region, dorsal; b, same, lateral; c, tooth on ventromesial carina of first article of antennular peduncle; d, third maxilliped, lateral; e, second pereiopod, lateral; f, third pereiopod, lateral; g, same, propodus and dactylus, lateral; h, second pleopod, mesial, detail of appendix masculina and appendix interna; i, uropod, dorsal (setae omitted); j, same, detail of spiniform setae on distal margin of endopod, dorsal; k, telson, dorsal; l, frontal margin of carapace, dorsal; m, antennal scaphocerite, dorsal (setae omitted); n, second pereiopod, lateral." httpUri="https://zenodo.org/record/201973/files/figure.png" pageId="6" pageNumber="55">Fig. 1</figureCitation>
a and 
<bibRefCitation id="496B4B24FF979C1DFCF5FD7129035C87" author="Kim" box="[878,1097,727,751]" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
: fig. 45a). The above observations suggest that 
<taxonomicName id="EAFA4D56FF979C1DFEF8FD5A2CF45D7C" ID-CoL="85LHJ" box="[355,446,764,788]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFEF8FD5A2CF45D7C" box="[355,446,764,788]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
may be a deep-water member of the 
<taxonomicName id="EAFA4D56FF979C1DFCFEFD5A295B5D7C" ID-CoL="84W8H" box="[869,1041,764,788]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="macrocheles">
<emphasis id="1F8EEAC7FF979C1DFCFEFD5A295B5D7C" box="[869,1041,764,788]" italics="true" pageId="6" pageNumber="55">A. macrocheles</emphasis>
</taxonomicName>
group, and perhaps closely related to 
<taxonomicName id="EAFA4D56FF979C1DFF2FFC862C105D50" ID-CoL="85LKK" box="[180,346,800,824]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFF2FFC862C105D50" box="[180,346,800,824]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFEFAFC862CEA5D50" bold="true" box="[353,416,800,824]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFEFAFC862CEA5D50" box="[353,416,800,824]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</paragraph>
<paragraph id="2D4536D5FF979C1DFF5EFCE22E405A14" blockId="6.[151,1437,151,1580]" pageId="6" pageNumber="55">
<bibRefCitation id="496B4B24FF979C1DFF5EFCE22C355D34" author="Wicksten" box="[197,383,836,860]" pageId="6" pageNumber="55" 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>
suggested that 
<taxonomicName id="EAFA4D56FF979C1DFDB6FCE22FCD5D34" ID-CoL="85LHJ" box="[557,647,836,860]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFDB6FCE22FCD5D34" box="[557,647,836,860]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
may be a junior synonym of 
<taxonomicName id="EAFA4D56FF979C1DFC4AFCE228CE5D34" authority="Lockington, 1878" authorityName="Lockington" authorityYear="1878" box="[977,1412,836,860]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="tenuimanus">
<emphasis id="1F8EEAC7FF979C1DFC4AFCE229F95D34" box="[977,1203,836,860]" italics="true" pageId="6" pageNumber="55">Alpheus tenuimanus</emphasis>
<bibRefCitation id="496B4B24FF979C1DFB21FCE228CE5D34" author="Lockington" box="[1210,1412,836,860]" pageId="6" pageNumber="55" refString="Lockington, W. N. (1878) Remarks on some new Alphei, with a synopsis of North American species. Annals and Magazine of Natural History, series 5, 1, 465 - 480." type="journal article" year="1878">Lockington, 1878</bibRefCitation>
</taxonomicName>
, a poorly described alpheid of unknown generic assignment from the Gulf of California. However, Wicksten’s tentatively proposed synonymy is not supported by Lockington’s (1878) description and Kim &amp; Abele’s (1988) description and figures. In 
<taxonomicName id="EAFA4D56FF979C1DFE17FC162F785DA0" box="[396,562,944,968]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="tenuimanus">
<emphasis id="1F8EEAC7FF979C1DFE17FC162F785DA0" box="[396,562,944,968]" italics="true" pageId="6" pageNumber="55">A. tenuimanus</emphasis>
</taxonomicName>
, the rostrum was described as being much longer than orbital teeth, the stylocerite as overreaching the distal margin of the first article of the antennular peduncle; and the third to fifth pereiopods as unarmed (“posterior pairs of without spines or spinules on any of the joints”). In contrast, in 
<taxonomicName id="EAFA4D56FF979C1DFAA0FC5E28DF5A78" ID-CoL="85LHJ" box="[1339,1429,1016,1040]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFAA0FC5E28DF5A78" box="[1339,1429,1016,1040]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
, the rostrum is only slightly longer than the orbital teeth, the stylocerite does not reach the first article of the antennular pedunce, and the propodus is furnished with small spiniform setae (
<bibRefCitation id="496B4B24FF979C1DFC49FBE629FB5A30" author="Kim" box="[978,1201,1088,1112]" pageId="6" pageNumber="55" 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." type="journal article" year="1988">Kim &amp; Abele 1988</bibRefCitation>
). Therefore, the synonymy of 
<taxonomicName id="EAFA4D56FF979C1DFE91FBC22C2E5A14" ID-CoL="85LHJ" box="[266,356,1124,1148]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="exilis">
<emphasis id="1F8EEAC7FF979C1DFE91FBC22C2E5A14" box="[266,356,1124,1148]" italics="true" pageId="6" pageNumber="55">A. exilis</emphasis>
</taxonomicName>
with 
<taxonomicName id="EAFA4D56FF979C1DFE3FFBC22F0F5A14" box="[420,581,1124,1148]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="tenuimanus">
<emphasis id="1F8EEAC7FF979C1DFE3FFBC22F0F5A14" box="[420,581,1124,1148]" italics="true" pageId="6" pageNumber="55">A. tenuimanus</emphasis>
</taxonomicName>
must be rejected.
</paragraph>
<paragraph id="2D4536D5FF979C1DFF5EFB2E28465B64" blockId="6.[151,1437,151,1580]" pageId="6" pageNumber="55">
<bibRefCitation id="496B4B24FF979C1DFF5EFB2E2CEA5AC8" author="Burukovsky" box="[197,416,1160,1184]" pageId="6" pageNumber="55" refString="Burukovsky, R. N. (1990) Krevetki podvodnykh vozvyshennostei Sala i Gomez i Nasca [Shrimps from the Sala y Gomez and Nasca ridges]. Trudy Instituta Okeanologii, 124, 187 - 217." type="journal article" year="1990">Burukovsky (1990)</bibRefCitation>
described 
<taxonomicName id="EAFA4D56FF979C1DFD87FB2E2E375AC8" ID-CoL="85LNT" authority="Burukovsky, 1990" authorityName="Burukovsky" authorityYear="1990" box="[540,893,1160,1184]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="romensky">
<emphasis id="1F8EEAC7FF979C1DFD87FB2E2FEC5AC8" box="[540,678,1160,1184]" italics="true" pageId="6" pageNumber="55">A. romensky</emphasis>
<bibRefCitation id="496B4B24FF979C1DFD35FB2E2E375AC8" author="Burukovsky" box="[686,893,1160,1184]" pageId="6" pageNumber="55" refString="Burukovsky, R. N. (1990) Krevetki podvodnykh vozvyshennostei Sala i Gomez i Nasca [Shrimps from the Sala y Gomez and Nasca ridges]. Trudy Instituta Okeanologii, 124, 187 - 217." type="journal article" year="1990">Burukovsky, 1990</bibRefCitation>
</taxonomicName>
on a single heavily damaged specimen dredged from 
<quantity id="EA029B30FF979C1DFF4DFB0A2C1C5AAC" box="[214,342,1196,1220]" metricMagnitude="2" metricUnit="m" metricValue="5.5" metricValueMax="5.6" metricValueMin="5.4" pageId="6" pageNumber="55" unit="m" value="550.0" valueMax="560.0" valueMin="540.0">540–560 m</quantity>
on the Salas y Gómez Ridge, eastern-most point of the Polynesian triangle. This species shows some similarities to 
<taxonomicName id="EAFA4D56FF979C1DFE1BFB762F625A80" ID-CoL="85LKK" box="[384,552,1232,1256]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFE1BFB762F625A80" box="[384,552,1232,1256]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="04BD57BCFF979C1DFDA9FB762F395A80" box="[562,627,1232,1256]" pageId="6" pageNumber="55" rank="species">
<emphasis id="1F8EEAC7FF979C1DFDA9FB762F395A80" bold="true" box="[562,627,1232,1256]" pageId="6" pageNumber="55">n. sp.</emphasis>
</taxonomicNameLabel>
, especially in the frontal margin of the carapace, but can be separated from the new species by the more slender major and minor chelipeds (see 
<bibRefCitation id="496B4B24FF979C1DFC4DFB5229E85B64" author="Burukovsky" box="[982,1186,1268,1292]" pageId="6" pageNumber="55" refString="Burukovsky, R. N. (1990) Krevetki podvodnykh vozvyshennostei Sala i Gomez i Nasca [Shrimps from the Sala y Gomez and Nasca ridges]. Trudy Instituta Okeanologii, 124, 187 - 217." type="journal article" year="1990">Burukovsky 1990</bibRefCitation>
: fig. 3A).
</paragraph>
<paragraph id="2D4536D5FF979C1DFF5EFABF2FB25BF4" blockId="6.[151,1437,151,1580]" pageId="6" pageNumber="55">
In the Indo-West Pacific, at least three deep-water species from the taxonomically problematic 
<taxonomicName id="EAFA4D56FF979C1DFA97FABE2C745B3C" ID-CoL="84W7W" authority="Coutiere, 1905" authorityName="Coutiere" authorityYear="1905" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="hailstonei">
<emphasis id="1F8EEAC7FF979C1DFA97FABE28D65B58" box="[1292,1436,1304,1328]" italics="true" pageId="6" pageNumber="55">A. hailstonei</emphasis>
<bibRefCitation id="496B4B24FF979C1DFF0CFA9A2C745B3C" author="Coutiere" box="[151,318,1340,1364]" pageId="6" pageNumber="55" refString="Coutiere, H. (1905) Les Alpheidae. In: J. Stanley Gardiner (ed.), The Fauna and Geography of the Maldive and Laccadive Archipelagoes, 2, 852 - 921, pls. 70 - 87. Cambridge University Press." type="journal article" year="1905">Coutière, 1905</bibRefCitation>
</taxonomicName>
species complex, including 
<taxonomicName id="EAFA4D56FF979C1DFD19FA9A2EA25B3C" ID-CoL="84W6Y" authority="Banner, 1953" authorityName="Banner" authorityYear="1953" box="[642,1000,1340,1364]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="brachymerus">
<emphasis id="1F8EEAC7FF979C1DFD19FA9A2E7E5B3C" box="[642,820,1340,1364]" italics="true" pageId="6" pageNumber="55">A. brachymerus</emphasis>
(
<bibRefCitation id="496B4B24FF979C1DFCDFFA9A2EAA5B3C" author="Banner" box="[836,992,1340,1364]" pageId="6" pageNumber="55" refString="Banner, A. H. (1953) The Crangonidae, or snapping shrimp, of Hawaii. Pacific Science, 7, 1 - 144." type="journal article" year="1953">Banner, 1953</bibRefCitation>
)
</taxonomicName>
, resemble 
<taxonomicName id="EAFA4D56FF979C1DFBF8FA9A28405B3C" ID-CoL="85LKK" box="[1123,1290,1340,1364]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFBF8FA9A28405B3C" box="[1123,1290,1340,1364]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFA88FA9A28195B3C" bold="true" box="[1299,1363,1340,1364]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFA88FA9A28195B3C" box="[1299,1363,1340,1364]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
in the general shape of the major cheliped, but differ in the shape of the minor chela and numerous minor details (see 
<bibRefCitation id="496B4B24FF979C1DFF0CFA222C735BF4" author="Coutiere" box="[151,313,1412,1436]" pageId="6" pageNumber="55" refString="Coutiere, H. (1905) Les Alpheidae. In: J. Stanley Gardiner (ed.), The Fauna and Geography of the Maldive and Laccadive Archipelagoes, 2, 852 - 921, pls. 70 - 87. Cambridge University Press." type="journal article" year="1905">Coutière 1905</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF979C1DFEDEFA232C9D5BF4" author="Banner" box="[325,471,1412,1436]" pageId="6" pageNumber="55" refString="Banner, A. H. (1953) The Crangonidae, or snapping shrimp, of Hawaii. Pacific Science, 7, 1 - 144." type="journal article" year="1953">Banner 1953</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF979C1DFE78FA232FA65BF4" author="Banner" box="[483,748,1412,1436]" pageId="6" pageNumber="55" 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." type="journal article" year="1982">Banner &amp; Banner 1982</bibRefCitation>
).
</paragraph>
<paragraph id="2D4536D5FF979C1DFF5EFA0129355844" blockId="6.[151,1437,151,1580]" pageId="6" pageNumber="55">
With regard to bathymetry, 
<taxonomicName id="EAFA4D56FF979C1DFD98FA0E2FE65BA8" ID-CoL="85LKK" box="[515,684,1448,1472]" class="Malacostraca" family="Alpheidae" genus="Alpheus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="species" species="lentiginosus" status="sp. nov.">
<emphasis id="1F8EEAC7FF979C1DFD98FA0E2FE65BA8" box="[515,684,1448,1472]" italics="true" pageId="6" pageNumber="55">A. lentiginosus</emphasis>
</taxonomicName>
<emphasis id="1F8EEAC7FF979C1DFD2EFA0E2FBD5BA8" bold="true" box="[693,759,1448,1472]" pageId="6" pageNumber="55">
<taxonomicNameLabel id="04BD57BCFF979C1DFD2EFA0E2FBD5BA8" box="[693,759,1448,1472]" pageId="6" pageNumber="55" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
becomes the deepest alpheid shrimp known in the Gulf of 
<collectingCountry id="55ED7645FF979C1DFF0CFA6A2DA55B8C" box="[151,239,1484,1508]" name="Mexico" pageId="6" pageNumber="55">Mexico</collectingCountry>
, extending by almost 
<quantity id="EA029B30FF979C1DFE7EFA6A2F675B8C" box="[485,557,1484,1508]" metricMagnitude="2" metricUnit="m" metricValue="2.0" pageId="6" pageNumber="55" unit="m" value="200.0">200 m</quantity>
the previous depth record of 
<quantity id="EA029B30FF979C1DFCE3FA6A2EF55B8C" box="[888,959,1484,1508]" metricMagnitude="2" metricUnit="m" metricValue="2.5" pageId="6" pageNumber="55" unit="m" value="250.0">250 m</quantity>
(
<bibRefCitation id="496B4B24FF979C1DFC55FA6A29D15B8C" author="Felder" box="[974,1179,1484,1508]" pageId="6" pageNumber="55" refString="Felder, D. L., Alvarez, F., Goy, J. W. &amp; Lemaitre, R. (2009) Decapoda (Crustacea) of the Gulf of Mexico, with comments on the Amphionidacea. In: Felder, D. L. &amp; Camp, D. K. (eds.), Gulf of Mexico. Origin, Waters, and Biota. Vol. 1. Biodiversity. Chapter 59, pp. 1019 - 1104. Texas A &amp; M University Press." type="journal article" year="2009">
Felder 
<emphasis id="1F8EEAC7FF979C1DFB84FA6B291D5B8C" box="[1055,1111,1484,1508]" italics="true" pageId="6" pageNumber="55">et al.</emphasis>
2009
</bibRefCitation>
). The new species also appears to hold the deepest record of the 
<taxonomicName id="EAFA4D56FF979C1DFDFEFA492F92586F" ID-CoL="84JVC" box="[613,728,1519,1543]" class="Malacostraca" family="Alpheidae" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="55" phylum="Arthropoda" rank="family">Alpheidae</taxonomicName>
in the entire western Atlantic, with no other alpheid exceeding the depth of 
<quantity id="EA029B30FF979C1DFEB8F9B22C205844" box="[291,362,1556,1580]" metricMagnitude="2" metricUnit="m" metricValue="3.0" pageId="6" pageNumber="55" unit="m" value="300.0">300 m</quantity>
in this area (see 
<bibRefCitation id="496B4B24FF979C1DFDBCF9B22FE55844" author="Chace" box="[551,687,1556,1580]" pageId="6" pageNumber="55" refString="Chace, F. A. Jr. (1972) The shrimps of the Smithsonian-Bredin Caribbean expeditions with a summary of the West Indian shallow-water species (Crustacea: Decapoda: Natantia). Smithsonian Contributions to Zoology, 98, i - x + 1 - 179." type="journal article" year="1972">Chace 1972</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF979C1DFD20F9B22ED75844" author="Christoffersen" box="[699,925,1556,1580]" pageId="6" pageNumber="55" refString="Christoffersen, M. L. (1979) Decapod Crustacea: Alpheoidea. Campagnes de la Calypso au large des cotes Atlantiques de l'Amerique du Sud (1961 - 1962). I. Resultats Scientifiques de la Campagne de la Calypso, 11, 297 - 377." type="journal article" year="1979">Christoffersen 1979</bibRefCitation>
; 
<bibRefCitation id="496B4B24FF979C1DFC33F9B229395844" author="Felder" box="[936,1139,1556,1580]" pageId="6" pageNumber="55" refString="Felder, D. L., Alvarez, F., Goy, J. W. &amp; Lemaitre, R. (2009) Decapoda (Crustacea) of the Gulf of Mexico, with comments on the Amphionidacea. In: Felder, D. L. &amp; Camp, D. K. (eds.), Gulf of Mexico. Origin, Waters, and Biota. Vol. 1. Biodiversity. Chapter 59, pp. 1019 - 1104. Texas A &amp; M University Press." type="journal article" year="2009">
Felder 
<emphasis id="1F8EEAC7FF979C1DFC6CF9B3296D5844" box="[1015,1063,1556,1580]" italics="true" pageId="6" pageNumber="55">et al</emphasis>
. 2009
</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>