treatments-xml/data/BA/4C/61/BA4C617DFFD3FFD5C7E2FDA4EDD16771.xml

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<mods:title id="8E0F293CD039A8C960B9FFAA762FD4E0">New records of callianassid ghost shrimp (Crustacea: Decapoda: Axiidea) from reducing environments in Kyushu, southwestern Japan</mods:title>
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<mods:namePart id="AF9DA647DC08FED4708D7026FF3192FC">Komai, Tomoyuki</mods:namePart>
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<emphasis id="00910C79FFD3FFDCC7E2FDA4E9986341" bold="true" box="[151,469,541,567]" pageId="1" pageNumber="56">
<taxonomicName id="F5E5ABE8FFD3FFDCC7E2FDA4E9C16341" ID-CoL="c9efeb54-bb31-4c25-aecf-e4fa540a96da" box="[151,396,541,567]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="1" pageNumber="56" phylum="Arthropoda" rank="species" species="cavifrons" status="sp. nov.">
<emphasis id="00910C79FFD3FFDCC7E2FDA4E9C16341" bold="true" box="[151,396,541,567]" italics="true" pageId="1" pageNumber="56">Cheramus cavifrons</emphasis>
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(
<figureCitation id="AADECCEEFFD3FFDCC7EAFD86E94F6321" box="[159,258,575,599]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="2.[151,249,1954,1977]" captionStartId-1="3.[151,250,1848,1871]" captionStartId-2="5.[151,250,1967,1990]" captionStartId-3="6.[151,250,1922,1945]" captionTargetBox-0="[218,1359,186,1937]" captionTargetBox-1="[199,1357,180,1848]" captionTargetBox-2="[226,1367,187,1934]" captionTargetBox-3="[198,1397,189,1908]" captionTargetId-0="figure@2.[200,1368,163,1944]" captionTargetId-1="figure@3.[199,1385,173,1848]" captionTargetId-2="figure@5.[204,1390,173,1963]" captionTargetId-3="figure@6.[175,1419,161,1916]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="5" captionTargetPageId-3="6" captionText-0="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." captionText-1="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." captionText-2="FIGURE 3. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left major cheliped, lateral view; B, same, mesial view; C, right minor cheliped, lateral view; D, same, mesial view. Scale bar: 1 mm." captionText-3="FIGURE 4. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm." httpUri-0="https://zenodo.org/record/210120/files/figure.png" httpUri-1="https://zenodo.org/record/210121/files/figure.png" httpUri-2="https://zenodo.org/record/210122/files/figure.png" httpUri-3="https://zenodo.org/record/210123/files/figure.png" pageId="1" pageNumber="56">Figs 1–4</figureCitation>
)
</paragraph>
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<emphasis id="00910C79FFD3FFDCC7E2FD31E95D63E8" box="[151,272,648,670]" italics="true" pageId="1" pageNumber="56">Callianassa</emphasis>
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sp. — 
<treatmentCitation id="B344F67AFFD3FFDCC608FD31EA3263EB" author="Fujiwara" box="[381,639,648,670]" page="223" pageId="1" pageNumber="56" year="2007">
<bibRefCitation id="5674AD9AFFD3FFDCC608FD31EA0163EB" author="Fujiwara" box="[381,588,648,670]" pageId="1" pageNumber="56" refString="Fujiwara, Y., Kawato, M., Yamamoto, T., Yamanaka, T., Sato-Okoshi, W., Noda, C., Tsuchida, S., Komai, T., Cubelio, S. S., Sasaki, T., Jacobsen, K., Kubokawa, K., Fujikura, K., Maruyama, T., Furushima, Y., Okoshi, K., Miyake, H., Miyazaki, M., Nogi, Y., Yatabe, A. &amp; Okutani, T. (2007) Three-year investigations into sperm whale-fall ecosystems in Japan. Marine Ecology, 28, 219 - 232." type="journal article" year="2007">
Fujiwara 
<emphasis id="00910C79FFD3FFDCC6A8FD30EA5D63E8" box="[477,528,648,670]" italics="true" pageId="1" pageNumber="56">et al.</emphasis>
2007
</bibRefCitation>
: 223
</treatmentCitation>
.
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</paragraph>
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<emphasis id="00910C79FFD3FFDCC7E2FD73E9306395" bold="true" box="[151,381,714,739]" pageId="1" pageNumber="56">Material examined</emphasis>
. 
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<emphasis id="00910C79FFD3FFDCC6FBFD72E9B86395" box="[398,501,715,739]" italics="true" pageId="1" pageNumber="56">Holotype</emphasis>
</typeStatus>
: ovigerous female (cl 
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), R/V 
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<emphasis id="00910C79FFD3FFDCC4D9FD72EC7D6395" box="[940,1072,715,739]" italics="true" pageId="1" pageNumber="56">Natsushima</emphasis>
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, NT07-09 cruise, ROV 
<emphasis id="00910C79FFD3FFDCC238FD75E8BE6270" italics="true" pageId="1" pageNumber="56">Hyper- Dolphin</emphasis>
dive No. 689, off Cape Nomamisaki, Kagoshima Prefecture, 
<geoCoordinate id="57D1B6ACFFD3FFDCC4DAFD57EC0E6270" box="[943,1091,750,774]" direction="north" orientation="latitude" pageId="1" pageNumber="56" precision="1" value="31.3499">31°20.994’N</geoCoordinate>
, 
<geoCoordinate id="57D1B6ACFFD3FFDCC325FD57ECA26270" box="[1104,1263,750,774]" direction="east" orientation="longitude" pageId="1" pageNumber="56" precision="1" value="129.98598">129°59.159’E</geoCoordinate>
, 
<quantity id="F51D7D8EFFD3FFDCC389FD57ED0B6270" box="[1276,1350,750,774]" metricMagnitude="2" metricUnit="m" metricValue="2.26" pageId="1" pageNumber="56" unit="m" value="226.0">226 m</quantity>
, 
<date id="465BF6ABFFD3FFDCC226FD57E89F625C" pageId="1" pageNumber="56" value="2007-06-08">8 June 2007</date>
, scoop sampler, NSMT-Cr 22092 (formerly JAMSTEC No. 
<date id="465BF6ABFFD3FFDCC400FCABEB83625C" box="[885,974,786,810]" pageId="1" pageNumber="56" value="10-07-20">072010</date>
).
</paragraph>
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<emphasis id="00910C79FFD3FFDCC7B2FC81E9746239" box="[199,313,824,847]" italics="true" pageId="1" pageNumber="56">Paratypes</emphasis>
</typeStatus>
: 
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(cl 2.0– 
<quantity id="F51D7D8EFFD3FFDCC566FC8FEA236238" box="[531,622,822,846]" metricMagnitude="-3" metricUnit="m" metricValue="2.2" pageId="1" pageNumber="56" unit="mm" value="2.2">2.2 mm</quantity>
), R/V 
<taxonomicName id="F5E5ABE8FFD3FFDCC5CCFC8FEB706238" box="[697,829,822,846]" class="Polychaeta" family="Chrysopetalidae" genus="Natsushima" kingdom="Animalia" order="Phyllodocida" pageId="1" pageNumber="56" phylum="Annelida" rank="genus">
<emphasis id="00910C79FFD3FFDCC5CCFC8FEB706238" box="[697,829,822,846]" italics="true" pageId="1" pageNumber="56">Natsushima</emphasis>
</taxonomicName>
, NT07-09 cruise, ROV 
<emphasis id="00910C79FFD3FFDCC33AFC8FECB76238" box="[1103,1274,822,846]" italics="true" pageId="1" pageNumber="56">Hyper-Dolphin</emphasis>
dive No. 682, similar locality, 
<geoCoordinate id="57D1B6ACFFD3FFDCC63EFCE3E9926204" box="[331,479,858,882]" direction="north" orientation="latitude" pageId="1" pageNumber="56" precision="1" value="31.345417">31°20.725’N</geoCoordinate>
, 
<geoCoordinate id="57D1B6ACFFD3FFDCC69EFCE3EAC66204" box="[491,651,858,882]" direction="east" orientation="longitude" pageId="1" pageNumber="56" precision="1" value="129.98814">129°59.289’E</geoCoordinate>
, 
<quantity id="F51D7D8EFFD3FFDCC5E0FCE3EA936204" box="[661,734,858,882]" metricMagnitude="2" metricUnit="m" metricValue="2.26" pageId="1" pageNumber="56" unit="m" value="226.0">226 m</quantity>
, 
<date id="465BF6ABFFD3FFDCC59CFCE3EB3E6204" box="[745,883,858,882]" pageId="1" pageNumber="56" value="2007-06-04">4 June 2007</date>
, scoop sampler, JAMSTEC No. 
<date id="465BF6ABFFD3FFDCC3ABFCE3ED7E6204" box="[1246,1331,858,882]" pageId="1" pageNumber="56" value="87-07-19">071987</date>
– 
<date id="465BF6ABFFD3FFDCC237FCE3EDD56204" box="[1346,1432,858,882]" pageId="1" pageNumber="56" value="90-07-19">071990</date>
; 
<specimenCount id="24E31BE2FFD3FFDCC7E2FCC7E8B162E0" box="[151,252,894,918]" pageId="1" pageNumber="56" type="female">1 female</specimenCount>
(cl 
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), R/V 
<taxonomicName id="F5E5ABE8FFD3FFDCC694FCC7EA2862E0" box="[481,613,894,918]" class="Polychaeta" family="Chrysopetalidae" genus="Natsushima" kingdom="Animalia" order="Phyllodocida" pageId="1" pageNumber="56" phylum="Annelida" rank="genus">
<emphasis id="00910C79FFD3FFDCC694FCC7EA2862E0" box="[481,613,894,918]" italics="true" pageId="1" pageNumber="56">Natsushima</emphasis>
</taxonomicName>
, NT04-08 cruise, ROV 
<emphasis id="00910C79FFD3FFDCC4F3FCC7EC7D62E0" box="[902,1072,894,918]" italics="true" pageId="1" pageNumber="56">Hyper-Dolphin</emphasis>
dive No. 328, similar locality, 
<geoCoordinate id="57D1B6ACFFD3FFDCC7E2FC1BE96762CC" box="[151,298,930,954]" direction="north" orientation="latitude" pageId="1" pageNumber="56" precision="1" value="31.34535">31°20.721’N</geoCoordinate>
, 
<geoCoordinate id="57D1B6ACFFD3FFDCC643FC1BE99B62CC" box="[310,470,930,954]" direction="east" orientation="longitude" pageId="1" pageNumber="56" precision="1" value="129.98805">129°59.283’E</geoCoordinate>
, 
<quantity id="F51D7D8EFFD3FFDCC694FC1BEA6762CC" box="[481,554,930,954]" metricMagnitude="2" metricUnit="m" metricValue="2.25" pageId="1" pageNumber="56" unit="m" value="225.0">225 m</quantity>
, 
<date id="465BF6ABFFD3FFDCC543FC1BEA8462CC" box="[566,713,930,954]" pageId="1" pageNumber="56" value="2004-07-27">27 July 2004</date>
, scoop sampler, JAMSTEC No. 0 55524.
</paragraph>
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<paragraph id="325AD06BFFD3FFDCC7B2FC7FEA3B6518" blockId="1.[151,1437,714,2034]" pageId="1" pageNumber="56">
<emphasis id="00910C79FFD3FFDCC7B2FC7FE91C62A9" bold="true" box="[199,337,966,991]" pageId="1" pageNumber="56">Description</emphasis>
. 
<emphasis id="00910C79FFD3FFDCC616FC7FEA5262A8" box="[355,543,966,990]" italics="true" pageId="1" pageNumber="56">
<typeStatus id="ED5E6EC9FFD3FFDCC616FC7FE98462A8" box="[355,457,966,990]" pageId="1" pageNumber="56" type="holotype">Holotype</typeStatus>
female
</emphasis>
. Rostrum (
<figureCitation id="AADECCEEFFD3FFDCC5D1FC7FEAA162A8" box="[676,748,966,990]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
A, 2C)) narrowly triangular, acuminate, directed somewhat downward, reaching midlength of eyestalks. Carapace (
<figureCitation id="AADECCEEFFD3FFDCC46AFC53EB2A6574" box="[799,871,1002,1026]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
A, 2A, B) about 0.3 length of abdomen; orbital margins distinctly concave; anterolateral projections triangular with subacute tip; excavation inferior to anterolateral projections deep, U-shaped; dorsal oval well defined, smooth, occupying about three-fourths of carapace length; linea thalassinica distinct.
</paragraph>
<paragraph id="325AD06BFFD3FFDCC7B2FBC3EB176710" blockId="1.[151,1437,714,2034]" pageId="1" pageNumber="56">
Length ratio of first to sixth abdominal somites measured along midline 1: 2: 1.1: 1.1: 1.1: 1.5. First abdominal somite (
<figureCitation id="AADECCEEFFD3FFDCC783FB27E90C65C0" box="[246,321,1182,1206]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
B, 2E) generally narrowing anteriorly in dorsal view, with slight constriction just anterior to midlength; pleuron weakly developed but with clearly defined ventral margin. Second somite (
<figureCitation id="AADECCEEFFD3FFDCC275FB7BED0765AC" box="[1280,1354,1218,1242]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
B, 2E) distinctly longer than other somites; pleuron with posterolateral margin slightly expanded, bearing tuft of long setae directed laterally adjacent to posterolateral margin. Third to fifth pleura (
<figureCitation id="AADECCEEFFD3FFDCC364FAB3EC196454" box="[1041,1108,1290,1314]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
C–E, 2E) each with patch of soft plumose setae; posterolateral margins slightly expanded; third and fourth pleura further each with short row of long setae near posterolateral margin, fifth pleuron with row of long setae on posterior half of ventrolateral margin. Sixth somite (
<figureCitation id="AADECCEEFFD3FFDCC643FACFE93664F8" box="[310,379,1398,1422]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
F, 2E) 1.1 times longer than wide, subquadrate with nearly parallel lateral margins in dorsal view, lacking ventrolateral projection; lateral margin with shallow notch at about posterior 0.2; posterolateral margin with tuft of moderately long to long setae. Telson (
<figureCitation id="AADECCEEFFD3FFDCC43CFA07EBC664A0" box="[841,907,1470,1494]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Fig. 1</figureCitation>
F) trapezoidal, slightly narrowing posteriorly, approximately as long as wide, broadest at anterior 0.2; dorsal surface nearly flat, with short, low transverse ridge anteromedially, bearing row of long setae; lateral margin unarmed, 2 pairs of minute spiniform setae at rounded posterolateral angles; posterior margin slightly concave, with minute median tooth and row of thin setae (these setae greatly unequal in length, lateral setae elongate) (
<figureCitation id="AADECCEEFFD3FFDCC58AF9F7EB0E6710" box="[767,835,1614,1638]" captionStart="FIGURE 4" captionStartId="6.[151,250,1922,1945]" captionTargetBox="[198,1397,189,1908]" captionTargetId="figure@6.[175,1419,161,1916]" captionTargetPageId="6" captionText="FIGURE 4. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/210123/files/figure.png" pageId="1" pageNumber="56">
Fig. 
<date id="465BF6ABFFD3FFDCC446F9F7EB0E6710" box="[819,835,1614,1638]" pageId="1" pageNumber="56">4</date>
</figureCitation>
I).
</paragraph>
<paragraph id="325AD06BFFD3FFDCC7B2F9CBED4D6780" blockId="1.[151,1437,714,2034]" pageId="1" pageNumber="56">
Eyestalks (
<figureCitation id="AADECCEEFFD3FFDCC630F9CBE9C367FC" box="[325,398,1650,1674]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
A, 2B, C) flattened distally, tapering to bluntly pointed mesiodistal projection, narrowly separated, slightly overreaching distal margin of first segment of antennular peduncle; dorsal surface closely attaching rostrum, sloping anteriorly; lateral margin sinuous with obtuse angle slightly distal to midlength. Cornea subterminal and lateral, darkly pigmented, its width approximately half of greatest width of eyestalk.
</paragraph>
<paragraph id="325AD06BFFD3FFDCC7B2F8BBEC0866B8" blockId="1.[151,1437,714,2034]" pageId="1" pageNumber="56">
Antennular peduncle (
<figureCitation id="AADECCEEFFD3FFDCC6CAF8BBEA4E666C" box="[447,515,1794,1818]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
A, 2B) subequal in length to antennal peduncle; first segment short, hardly visible in dorsal and lateral views; second segment shorter than first segment; third segment about 2.6 times longer than second segment; second and third segments with row of sparse setae ventrally; antennular flagella both slightly longer than peduncle; dorsal flagellum thicker and slightly shorter than ventral flagellum. Antennal peduncle (
<figureCitation id="AADECCEEFFD3FFDCC21FF8D7E8EF66DC" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="1" pageNumber="56">Figs 1</figureCitation>
A, 2B) with distal two segments subcylindrical; fourth segment about 1.3 times longer than fifth segment; scaphocerite rudimentary, subovate; flagellum about 1.6 times longer than carapace.
</paragraph>
<paragraph id="325AD06BFFD3FFDCC7B2F863EC396684" blockId="1.[151,1437,714,2034]" box="[199,1140,2010,2034]" pageId="1" pageNumber="56">
Prolongations of cephalothorax lateral to epistome bearing few long setae (
<figureCitation id="AADECCEEFFD3FFDCC37AF863EC1E6684" box="[1039,1107,2010,2034]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="1" pageNumber="56">Fig. 2</figureCitation>
B).
</paragraph>
<caption id="669A80E3FFD0FFDFC7E2F81BEDD06683" httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="2" pageNumber="57" targetBox="[218,1359,186,1937]" targetPageId="2">
<paragraph id="325AD06BFFD0FFDFC7E2F81BEDD06683" blockId="2.[151,1437,1954,2037]" pageId="2" pageNumber="57">
<emphasis id="00910C79FFD0FFDFC7E2F81BE95966CE" bold="true" box="[151,276,1954,1977]" pageId="2" pageNumber="57">FIGURE 1.</emphasis>
<taxonomicName id="F5E5ABE8FFD0FFDFC66EF81BE9AA66CE" box="[283,487,1954,1976]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="2" pageNumber="57" phylum="Arthropoda" rank="species" species="cavifrons" status="sp. nov.">
<emphasis id="00910C79FFD0FFDFC66EF81BE9AA66CE" box="[283,487,1954,1976]" italics="true" pageId="2" pageNumber="57">Cheramus cavifrons</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD0FFDFC69BF81AEA6A66CE" box="[494,551,1955,1976]" pageId="2" pageNumber="57" rank="species">n. sp.</taxonomicNameLabel>
, holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm.
</paragraph>
</caption>
<caption id="669A80E3FFD1FFDEC7E2F881E9D5669E" httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="3" pageNumber="58" targetBox="[199,1357,180,1848]" targetPageId="3">
<paragraph id="325AD06BFFD1FFDEC7E2F881E9D5669E" blockId="3.[151,1436,1848,2024]" pageId="3" pageNumber="58">
<emphasis id="00910C79FFD1FFDEC7E2F881E9406638" bold="true" box="[151,269,1848,1871]" pageId="3" pageNumber="58">FIGURE 2</emphasis>
. 
<taxonomicName id="F5E5ABE8FFD1FFDEC669F880E9A46639" box="[284,489,1849,1871]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="3" pageNumber="58" phylum="Arthropoda" rank="species" species="cavifrons" status="sp. nov.">
<emphasis id="00910C79FFD1FFDEC669F880E9A46639" box="[284,489,1849,1871]" italics="true" pageId="3" pageNumber="58">Cheramus cavifrons</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD1FFDEC684F883EA666639" box="[497,555,1850,1871]" pageId="3" pageNumber="58" rank="species">n. sp.</taxonomicNameLabel>
, holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A–E; 0.5 mm for F–I.
</paragraph>
</caption>
<paragraph id="325AD06BFFD6FFD9C7B2FF2EED7360DE" blockId="4.[151,1436,151,2020]" pageId="4" pageNumber="59">
First maxilliped (
<figureCitation id="AADECCEEFFD6FFD9C6F8FF2EE99F61D9" box="[397,466,151,175]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Fig. 2</figureCitation>
F) with endopod greatly reduced to small rounded lobe located proximally; endopod slender, tapering to acute tip; exopod elongate subovate; epipod distinctly bilobed. Second maxilliped (
<figureCitation id="AADECCEEFFD6FFD9C24FFF02ED3361A5" box="[1338,1406,187,211]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Fig. 2</figureCitation>
G) with exopod slightly falling short of distal margin of merus. Third maxilliped (
<figureCitation id="AADECCEEFFD6FFD9C33DFF66ECDC6181" box="[1096,1169,223,247]" captionStart="FIGURE 4" captionStartId="6.[151,250,1922,1945]" captionTargetBox="[198,1397,189,1908]" captionTargetId="figure@6.[175,1419,161,1916]" captionTargetPageId="6" captionText="FIGURE 4. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/210123/files/figure.png" pageId="4" pageNumber="59">Fig. 4</figureCitation>
A, B) without exopod; ischium-merus broadly subrectangular, operculiform, 1.3 times longer than wide; ischium 1.1 times wider than long, crista dentata consisting of row of small slender spines; merus about 0.6 times as long as ischium, about 1.6 times wider than long, distolateral margin slightly produced in broadly rounded lobe, but unarmed; distomesial margin also unarmed; carpus subovate, subequal on length to merus; propodus 2.0 times longer than high and subequal in length to carpus; dactylus moderately slender, digitiform, about 0.7 times as long as propodus.
</paragraph>
<paragraph id="325AD06BFFD6FFD9C7B2FE0AEA7F6575" blockId="4.[151,1436,151,2020]" pageId="4" pageNumber="59">
First pereopods (chelipeds) greatly unequal and dissimilar. Major cheliped (
<figureCitation id="AADECCEEFFD6FFD9C341FE0AEC3560BD" box="[1076,1144,435,459]" captionStart="FIGURE 3" captionStartId="5.[151,250,1967,1990]" captionTargetBox="[226,1367,187,1934]" captionTargetId="figure@5.[204,1390,173,1963]" captionTargetPageId="5" captionText="FIGURE 3. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left major cheliped, lateral view; B, same, mesial view; C, right minor cheliped, lateral view; D, same, mesial view. Scale bar: 1 mm." httpUri="https://zenodo.org/record/210122/files/figure.png" pageId="4" pageNumber="59">Fig. 3</figureCitation>
A, B) massive, about 2.3 times longer than carapace (chela and carpus combined 1.4 times longer than carapace). Ischium becoming slightly higher distally in general contour, dorsal margin nearly straight, unarmed; lateral surface gently convex; ventral margin with serration consisting of 8 small acute spines increasing in size distally. Merus about 0.9 times as long as ischium; dorsal margin convex, unarmed; lateral surface forming concavity ventrally to accommodate proximoventral margin of carpus; mesial surface generally flat; ventral margin with moderately large, hook-like, sharply pointed spine proximally and row of small tubercles distal to hook-like spine. Carpus subsemicircular, about 1.3 times higher than long; dorsal and ventral margins sharply carinate, almost smooth; lateral surface smooth, convex; mesial face nearly flat. Palm subrectangular, about 1.2 times longer than wide; lateral surface smooth, convex, with few short setae; mesial surface slightly convex generally, but with shallow depression at base of fixed finger, having row of tufts of short setae or individual setae adjacent to dorsal margin and with row of long setae along ventral margin; dorsal and ventral margins sharply carinate, smooth. Fixed finger about 0.6 times as long as palm, slightly curving distally, terminating in subacute tip; cutting edge with single, subacute tooth slightly distal to midlength; lateral surface convex, scarcely carinate. Dactylus about 0.7 times as long as palm, hooked distally, crossing at midlength of fixed finger, terminating in acute tip; lateral surface with rows tufts of long setae dorsally and ventrally; dorsal surface rounded; cutting edge sinuous, without conspicuous teeth; mesial surface convex, also with tufts of long setae.
</paragraph>
<paragraph id="325AD06BFFD6FFD9C7B2FBB7E94D6410" blockId="4.[151,1436,151,2020]" pageId="4" pageNumber="59">
Minor cheliped (
<figureCitation id="AADECCEEFFD6FFD9C6F8FBB7E9986550" box="[397,469,1038,1062]" captionStart="FIGURE 3" captionStartId="5.[151,250,1967,1990]" captionTargetBox="[226,1367,187,1934]" captionTargetId="figure@5.[204,1390,173,1963]" captionTargetPageId="5" captionText="FIGURE 3. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left major cheliped, lateral view; B, same, mesial view; C, right minor cheliped, lateral view; D, same, mesial view. Scale bar: 1 mm." httpUri="https://zenodo.org/record/210122/files/figure.png" pageId="4" pageNumber="59">Fig. 3</figureCitation>
C, D) moderately stout. Ischium slightly curving; dorsal margin unarmed; ventral margin concave, with serration consisting of 6 small acute spines. Merus 0.9 times as long as ischium; dorsal margin convex, unarmed; ventral margin nearly straight, unarmed. Carpus cup-shaped, widened distally, subequal in length to merus and about 1.3 times longer than wide; dorsal margin nearly straight, rounded; ventral margins arcuate, sharply carinate. Palm subrectangular, about 1.3 times longer than wide; dorsal margin nearly straight, bluntly carinate, few short to long setae; ventral margin sharply carinate, with row of tufts of setae; lateral and mesial surfaces weakly convex, smooth. Fixed finger about 0.7 times as long as palm, slightly curving, terminating in acute tip; cutting edge with small acute, forwardly directed tooth arising slightly distal to midlength. Dactylus damaged at tip, crossing at midlength of fixed finger; dorsal margin rounded, almost glabrous; cutting edge unarmed.
</paragraph>
<paragraph id="325AD06BFFD6FFD9C7B2FAC8ECFD6679" blockId="4.[151,1436,151,2020]" pageId="4" pageNumber="59">
Second pereopod (
<figureCitation id="AADECCEEFFD6FFD9C6EBFAC8E9A964FF" box="[414,484,1393,1417]" captionStart="FIGURE 4" captionStartId="6.[151,250,1922,1945]" captionTargetBox="[198,1397,189,1908]" captionTargetId="figure@6.[175,1419,161,1916]" captionTargetPageId="6" captionText="FIGURE 4. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/210123/files/figure.png" pageId="4" pageNumber="59">Fig. 4</figureCitation>
C) with ischium short, ventrodistal angle somewhat produced; merus with sinuous ventral margin, dorsal margin almost straight, but distal part sloping down distally; carpus cup-shaped, about 1.6 times longer than high; chela triangular; palm much higher than long, proximoventral margin rounded; cutting edges of fingers bordered by thin corneous ridge; dactylus 1.6 times longer than palm. Third pereopod (
<figureCitation id="AADECCEEFFD6FFD9C24FFA62ED336485" box="[1338,1406,1499,1523]" captionStart="FIGURE 4" captionStartId="6.[151,250,1922,1945]" captionTargetBox="[198,1397,189,1908]" captionTargetId="figure@6.[175,1419,161,1916]" captionTargetPageId="6" captionText="FIGURE 4. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/210123/files/figure.png" pageId="4" pageNumber="59">Fig. 4</figureCitation>
D) with carpus cup-shaped, about 1.6 times longer than high; propodus suboval, about 1.1 times higher than long (length measured along dorsal margin), lateral face slightly elevated on midline, ventral margin strongly convex, with slender spiniform seta subterminally; dactylus nearly straight, distinctly shorter than propodus. Fourth pereopod (
<figureCitation id="AADECCEEFFD6FFD9C67AF9D0E91567F7" box="[271,344,1641,1665]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Figs 2</figureCitation>
E, 4E) extended posterodorsally; coxa somewhat flattened ventrally, immovable (
<figureCitation id="AADECCEEFFD6FFD9C387F9D0ED7A67F7" box="[1266,1335,1641,1665]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Fig. 2</figureCitation>
D); basis and ischium partially fused, extended posterolateraly; merus longer than ischium, distal margin deeply excavated; carpus slightly widened distally; propodus strongly compressed, slightly longer than carpus, with dense grooming setae on ventral margin; dactylus slightly curving, about half-length of propodus. Fifth pereopod (
<figureCitation id="AADECCEEFFD6FFD9C393F96DED64679A" box="[1254,1321,1748,1772]" captionStart="FIGURE 4" captionStartId="6.[151,250,1922,1945]" captionTargetBox="[198,1397,189,1908]" captionTargetId="figure@6.[175,1419,161,1916]" captionTargetPageId="6" captionText="FIGURE 4. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm." httpUri="https://zenodo.org/record/210123/files/figure.png" pageId="4" pageNumber="59">Fig. 4</figureCitation>
F, G) with chela distinctly longer than carpus, slightly curving; dactylus about 0.3 times as long as palm.
</paragraph>
<paragraph id="325AD06BFFD6FFD9C7B2F8A2E8AB6620" blockId="4.[151,1436,151,2020]" pageId="4" pageNumber="59">Branchial formula including two arthrobranchs on each third maxilliped to fourth pereopods; pleurobranchs absent.</paragraph>
<paragraph id="325AD06BFFD6FFD9C7B2F8D8EBE36692" blockId="4.[151,1436,151,2020]" pageId="4" pageNumber="59">
First pleopod (
<figureCitation id="AADECCEEFFD6FFD9C619F8D8E9FD660F" box="[364,432,1889,1913]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Fig. 2</figureCitation>
E) uniramous, two-segmented; distal segment with low convexity bearing tuft of setae at midlength of mesial margin. Second pleopod biramous; endopod slightly longer than exopod, both slightly longer than protopod. Third to fifth pleopods (
<figureCitation id="AADECCEEFFD6FFD9C523F811EAD766B6" box="[598,666,1960,1984]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Fig. 2</figureCitation>
H) biramous, rami moderately broad; appendix internae (
<figureCitation id="AADECCEEFFD6FFD9C257F811ED2A66B6" box="[1314,1383,1960,1984]" captionStart="FIGURE 2" captionStartId="3.[151,250,1848,1871]" captionTargetBox="[199,1357,180,1848]" captionTargetId="figure@3.[199,1385,173,1848]" captionTargetPageId="3" captionText="FIGURE 2. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, carapace and cephalic appendages, lateral view; B, anterior part of carapace and cephalic appendages, lateral view; C, rostrum and eyes, dorsal view; D, thoracic shield and coxae of fourth pereopods, ventral view; E, posterior part of cephalothorax and abdomen (left third pleopod removed), lateral view, showing direction of fourth pereopod; F, left first maxilliped, outer view (distal endite broken off); G, left second maxilliped; H, left third pleopod, posterior view (setae omitted); I, same, appendix interna. Scale bars: 1 mm for A – E; 0.5 mm for F – I." httpUri="https://zenodo.org/record/210121/files/figure.png" pageId="4" pageNumber="59">Fig. 2</figureCitation>
H, I) slender, digitiform, fully exceeding beyond mesial margin of endopod.
</paragraph>
<caption id="669A80E3FFD7FFD8C7E2F816ED436692" httpUri="https://zenodo.org/record/210122/files/figure.png" pageId="5" pageNumber="60" targetBox="[226,1367,187,1934]" targetPageId="5">
<paragraph id="325AD06BFFD7FFD8C7E2F816ED436692" blockId="5.[151,1436,1967,2020]" pageId="5" pageNumber="60">
<emphasis id="00910C79FFD7FFD8C7E2F816E94266B3" bold="true" box="[151,271,1967,1990]" pageId="5" pageNumber="60">FIGURE 3</emphasis>
. 
<taxonomicName id="F5E5ABE8FFD7FFD8C66AF816E9A066B3" box="[287,493,1967,1989]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="5" pageNumber="60" phylum="Arthropoda" rank="species" species="cavifrons" status="sp. nov.">
<emphasis id="00910C79FFD7FFD8C66AF816E9A066B3" box="[287,493,1967,1989]" italics="true" pageId="5" pageNumber="60">Cheramus cavifrons</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD7FFD8C682F809EA7F66B3" box="[503,562,1968,1989]" pageId="5" pageNumber="60" rank="species">n. sp.</taxonomicNameLabel>
, holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left major cheliped, lateral view; B, same, mesial view; C, right minor cheliped, lateral view; D, same, mesial view. Scale bar: 1 mm.
</paragraph>
</caption>
<caption id="669A80E3FFD4FFDBC7E2F83BEBD16682" httpUri="https://zenodo.org/record/210123/files/figure.png" pageId="6" pageNumber="61" targetBox="[198,1397,189,1908]" targetPageId="6">
<paragraph id="325AD06BFFD4FFDBC7E2F83BEBD16682" blockId="6.[151,1436,1922,2036]" pageId="6" pageNumber="61">
<emphasis id="00910C79FFD4FFDBC7E2F83BE94366EE" bold="true" box="[151,270,1922,1945]" pageId="6" pageNumber="61">FIGURE 4</emphasis>
. 
<taxonomicName id="F5E5ABE8FFD4FFDBC668F83BE9A666EE" box="[285,491,1922,1944]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="6" pageNumber="61" phylum="Arthropoda" rank="species" species="cavifrons" status="sp. nov.">
<emphasis id="00910C79FFD4FFDBC668F83BE9A666EE" box="[285,491,1922,1944]" italics="true" pageId="6" pageNumber="61">Cheramus cavifrons</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD4FFDBC681F83AEA6266EE" box="[500,559,1923,1944]" pageId="6" pageNumber="61" rank="species">n. sp.</taxonomicNameLabel>
, holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. A, left third maxilliped, lateral view; B, same mesial view; C, left second pereopod, lateral view; D, left third pereopod, lateral view; E, left fourth pereopod, outer view; F, left fifth pereopod lateral view; G, same, distal 2 segments, extensor view; H, left uropod, perpendicular dorsal view; I, posterior margin of telson. Scale bars: 0.5 mm.
</paragraph>
</caption>
<paragraph id="325AD06BFFD5FFDAC7B2FF2EE8A060DA" blockId="7.[151,1437,151,2012]" pageId="7" pageNumber="62">
Uropod (
<figureCitation id="AADECCEEFFD5FFDAC659FF2EE93D61D9" box="[300,368,151,175]" captionStart="FIGURE 1" captionStartId="2.[151,249,1954,1977]" captionTargetBox="[218,1359,186,1937]" captionTargetId="figure@2.[200,1368,163,1944]" captionTargetPageId="2" captionText="FIGURE 1. Cheramus cavifrons n. sp., holotype, ovigerous female (cl 3.7 mm), NSMT-Cr 22092. Body parts in dorsal view. A, carapace and cephalic appendages; B, first and second abdominal somites; C, third abdominal somite; D, fourth abdominal somite; E, fifth abdominal somite; F, sixth abdominal somite, telson and right uropod (setae partially omitted). Scale bar: 1 mm." httpUri="https://zenodo.org/record/210120/files/figure.png" pageId="7" pageNumber="62">Figs 1</figureCitation>
F, 4H) with both endopod and exopod subovate, both distinctly overreaching posterior margin of telson. Endopod about 1.6 times longer than wide; dorsal surface faintly elevated in midline and shallowly concave in mesial half; lateral margin nearly straight, with minute spinule somewhat posterior to midlength; mesial margin broadly convex; fringe of thin setae on distal to mesial margin. Exopod about 1.5 times longer than wide, exceeding beyond endopod; dorsal surface faintly elevated in midline, with short, sharp proximomedian carina; dorsal plate with distal row of spiniform setae distinctly separated from setal row of posterior margin; setal row on posterior margin consisting of stout and thin setae (stout setae located dorsally), thin setae extending to mesial margin.
</paragraph>
<paragraph id="325AD06BFFD5FFDAC7B2FE00EBBD6361" blockId="7.[151,1437,151,2012]" pageId="7" pageNumber="62">
<typeStatus id="ED5E6EC9FFD5FFDAC7B2FE00E97460A6" box="[199,313,441,464]" pageId="7" pageNumber="62" type="paratype">
<emphasis id="00910C79FFD5FFDAC7B2FE00E97460A6" box="[199,313,441,464]" italics="true" pageId="7" pageNumber="62">Paratypes</emphasis>
</typeStatus>
. Generally similar to 
<typeStatus id="ED5E6EC9FFD5FFDAC54DFE0EEAD060B9" box="[568,669,439,463]" pageId="7" pageNumber="62" type="holotype">holotype</typeStatus>
. Rostrum reaching proximal one-third to half of eyestalks. Ventral serration of meri of major and minor cheliped consisting of 4 or 5 spines or 4 spines, respectively. First and second pleopods very small and naked, clearly suggesting immaturity of specimens.
</paragraph>
</subSubSection>
<subSubSection id="7AFF83E0FFD5FFDAC7B2FD9AE9D56329" pageId="7" pageNumber="62" type="distribution">
<paragraph id="325AD06BFFD5FFDAC7B2FD9AE9D56329" blockId="7.[151,1437,151,2012]" pageId="7" pageNumber="62">
<emphasis id="00910C79FFD5FFDAC7B2FD9AE914634A" bold="true" box="[199,345,547,572]" pageId="7" pageNumber="62">Distribution</emphasis>
. At present known only from the 
<typeStatus id="ED5E6EC9FFD5FFDAC59EFD9CEB56634B" box="[747,795,549,573]" pageId="7" pageNumber="62">type</typeStatus>
locality, off Cape Nomamisaki, Kagoshima Prefecture, Kyushu, 
<collectingCountry id="4AF290FBFFD5FFDAC789FDF1E9726329" box="[252,319,584,607]" name="Japan" pageId="7" pageNumber="62">Japan</collectingCountry>
, 
<specimenCount id="24E31BE2FFD5FFDAC63FFDFEE9D56329" box="[330,408,583,607]" pageId="7" pageNumber="62" type="generic">
<quantity id="F51D7D8EFFD5FFDAC63FFDFEE9DE6329" box="[330,403,583,607]" metricMagnitude="2" metricUnit="m" metricValue="2.26" pageId="7" pageNumber="62" unit="m" value="226.0">226 m</quantity>
.
</specimenCount>
</paragraph>
</subSubSection>
<subSubSection id="7AFF83E0FFD5FFD5C7B2FDD5EAFA61A2" lastPageId="8" lastPageNumber="63" pageId="7" pageNumber="62" type="discussion">
<paragraph id="325AD06BFFD5FFDAC7B2FDD5EADB6446" blockId="7.[151,1437,151,2012]" pageId="7" pageNumber="62">
<emphasis id="00910C79FFD5FFDAC7B2FDD5E97963F2" bold="true" box="[199,308,620,644]" pageId="7" pageNumber="62">Remarks</emphasis>
. The genus level classification of the subfamily 
<taxonomicName id="F5E5ABE8FFD5FFDAC42FFDD5EBB163F2" box="[858,1020,620,644]" class="Malacostraca" family="Callianassidae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="subFamily" subFamily="Callianassinae">Callianassinae</taxonomicName>
sensu 
<bibRefCitation id="5674AD9AFFD5FFDAC33FFDD5ED2363F2" author="Manning" box="[1098,1390,620,644]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder (1991)</bibRefCitation>
has been subject of debate. 
<bibRefCitation id="5674AD9AFFD5FFDAC6DDFD36EA9C63D1" author="Manning" box="[424,721,655,679]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder (1991)</bibRefCitation>
proposed three new genera for species previously assigned to 
<taxonomicName id="F5E5ABE8FFD5FFDAC7E2FD0DE95063BA" box="[151,285,692,716]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC7E2FD0DE95063BA" box="[151,285,692,716]" italics="true" pageId="7" pageNumber="62">Callianassa</emphasis>
</taxonomicName>
and reinstated 
<taxonomicName id="F5E5ABE8FFD5FFDAC6A5FD0CEAF463BA" authority="Dana, 1852" authorityName="Dana" authorityYear="1852" box="[464,697,692,716]" class="Malacostraca" family="Callianassidae" genus="Trypaea" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC6A5FD0CEA6763BA" box="[464,554,693,716]" italics="true" pageId="7" pageNumber="62">Trypaea</emphasis>
Dana, 1852
</taxonomicName>
on the basis of reexamination of species occurring in 
<collectingCountry id="4AF290FBFFD5FFDAC241FD0DEDD563BA" box="[1332,1432,692,716]" name="United States of America" pageId="7" pageNumber="62">America</collectingCountry>
; 
<taxonomicName id="F5E5ABE8FFD5FFDAC7E2FD61E9C36399" authority="Bate, 1888" authorityName="Bate" authorityYear="1888" box="[151,398,727,752]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC7E2FD61E9476386" box="[151,266,728,752]" italics="true" pageId="7" pageNumber="62">Cheramus</emphasis>
Bate, 1888
</taxonomicName>
and 
<taxonomicName id="F5E5ABE8FFD5FFDAC6BDFD61EAFD6399" authority="Bate, 1888" authorityName="Bate" authorityYear="1888" box="[456,688,727,752]" class="Malacostraca" family="Callianassidae" genus="Scallasis" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC6BDFD61EA616386" box="[456,556,728,752]" italics="true" pageId="7" pageNumber="62">Scallasis</emphasis>
Bate, 1888
</taxonomicName>
were assigned to the separate subfamily 
<taxonomicName id="F5E5ABE8FFD5FFDAC3FDFD6EED426399" box="[1160,1295,727,751]" class="Malacostraca" family="Callianassidae" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="subFamily" subFamily="Cheraminae">Cheraminae</taxonomicName>
<bibRefCitation id="5674AD9AFFD5FFDAC26DFD6EE9656262" author="Manning" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder, 1991</bibRefCitation>
. Many subsequent taxonomic and phylogenetic works have followed the trend of splitting the genus 
<taxonomicName id="F5E5ABE8FFD5FFDAC7E2FC99E950624E" box="[151,285,800,824]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="00910C79FFD5FFDAC7E2FC99E950624E" box="[151,285,800,824]" italics="true" pageId="7" pageNumber="62">Callianassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD5FFDAC656FCA6E9096241" box="[291,324,799,823]" pageId="7" pageNumber="62" sensu="lato">s.l.</taxonomicNameLabel>
(
<bibRefCitation id="5674AD9AFFD5FFDAC627FCA6EA286241" author="Manning" box="[338,613,799,823]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1992) Gilvossius, a new genus of callianassid shrimp from the eastern United States (Crustacea: Decapoda: Thalassinidea). Bulletin of Marine Science, 49, 558 - 561." type="journal article" year="1992">Manning &amp; Felder 1992</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC51AFCA6EBE16241" author="Rodrigues" box="[623,940,799,823]" pageId="7" pageNumber="62" refString="Rodrigues, S. A. &amp; Manning, R. B. (1992) Two new callianassid shrimps from Brazil (Crustacea: Decapoda: Thalassinidea). Proceeding of the Biological Society of Washington, 105, 324 - 330." type="journal article" year="1992">Rodrigues &amp; Manning 1992</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC4C2FC98EC776241" author="Poore" box="[951,1082,799,824]" pageId="7" pageNumber="62" refString="Poore, G. C. B. (1994) A phylogeny of the families of Thalassinidea (Crustacea: Decapoda) with keys to families and genera. Memoirs of Museum Victoria, 54, 79 - 120." type="journal article" year="1994">Poore 1994</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC331FCA6ED1F6241" author="Heard" box="[1092,1362,799,823]" pageId="7" pageNumber="62" refString="Heard, R. &amp; Manning, R. B. 1998. A new genus and species of ghost shrimp (Crustacea: Decapoda: Callianassidae) from the Atlantic Ocean. Proceedings of the Biological Society of Washington, 111, 883 - 888." type="journal article" year="1998">
<collectingCountry id="4AF290FBFFD5FFDAC331FCA6ECC46241" box="[1092,1161,799,823]" name="Heard Island and McDonald Islands" pageId="7" pageNumber="62">Heard</collectingCountry>
&amp; Manning 1998
</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC228FCA6EDD56241" author="Manning" box="[1373,1432,799,823]" pageId="7" pageNumber="62" refString="Heard, R. &amp; Manning, R. B. 2000. A new genus and species of ghost shrimp from Tobago, West Indies (Crustacea: Decapoda: Callianassidae). Proceedings of the Biological Society of Washington, 113, 70 - 76." type="journal article" year="2000">2000</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC7E2FCFDE9FA622A" author="Manning" box="[151,439,836,860]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Tamaki, A. (1998) A new genus of ghost shrimp from Japan. Proceedings of the Biological Society Washington, 111, 889 - 892." type="journal article" year="1998">Manning &amp; Tamaki 1998</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC6B1FCFDEAC3622A" author="Tudge" box="[452,654,836,860]" pageId="7" pageNumber="62" refString="Tudge, C. C., Poore, G. C. G. &amp; Lemaitre, R. (2000) Preliminary phylogenetic analysis of generic relationships within the Callianassidae and Ctenochelidae (Decapoda: Thalassinidea: Callianassoidea). Journal of Crustacean Biology, 20, 129 - 149." type="journal article" year="2000">
Tudge 
<emphasis id="00910C79FFD5FFDAC567FCFCEA06622A" box="[530,587,836,860]" italics="true" pageId="7" pageNumber="62">et al.</emphasis>
2000
</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC5ECFCFCEB01622A" author="Ngoc-Ho" box="[665,844,836,861]" pageId="7" pageNumber="62" refString="Ngoc-Ho, N. (2003) European and Mediterranean Thalassinidea (Crustacea, Decapoda). Zoosystema, 25, 439 - 555." type="journal article" year="2003">Ngoc-Ho, 2003</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC422FCFDEC4C622A" author="Lin" box="[855,1025,836,860]" pageId="7" pageNumber="62" refString="Lin, F. - J., Komai, T. &amp; Chan, T. - Y. 2007. A new species of a callianassid shrimp (Crustacea: Decapoda: Thalassinidea) from deep-water hydrothermal vents off Taiwan. Proceedings of the Biological Society of Washington, 120, 143 - 158." type="journal article" year="2007">
Lin 
<emphasis id="00910C79FFD5FFDAC4F3FCFCEBF2622A" box="[902,959,836,860]" italics="true" pageId="7" pageNumber="62">et al.</emphasis>
2007
</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC378FCFDED71622A" author="Komai" box="[1037,1340,836,860]" pageId="7" pageNumber="62" refString="Komai, T. &amp; Tachikawa, H. (2008) Thalassinidean shrimps (Crustacea: Decapoda) from the Ogasawara Islands, Japan. Natural History Research, 10, 19 - 52." type="journal article" year="2008">Komai &amp; Tachikawa 2008</bibRefCitation>
). On the other hand, Sakai (1999, 2005) maintained species once assigned to 
<taxonomicName id="F5E5ABE8FFD5FFDAC4EFFCD1ED516209" authority="Manning &amp; Felder, 1991" authorityName="Manning &amp; Felder" authorityYear="1991" box="[922,1308,871,896]" class="Malacostraca" family="Callianassidae" genus="Biffarius" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC4EFFCD1EBB162F6" box="[922,1020,872,896]" italics="true" pageId="7" pageNumber="62">Biffarius</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC376FCDEED516209" author="Manning" box="[1027,1308,871,895]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder, 1991</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC25CFCD1E95962D2" authority="Bate, 1888" authorityName="Bate" authorityYear="1888" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC25CFCD1EDD162F6" box="[1321,1436,872,896]" italics="true" pageId="7" pageNumber="62">Cheramus</emphasis>
Bate, 1888
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC655FC35EAFB62D2" authority="Manning &amp; Felder, 1992" authorityName="Manning &amp; Felder" authorityYear="1992" box="[288,694,908,932]" class="Malacostraca" family="Callianassidae" genus="Gilvossius" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC655FC35E9D962D2" box="[288,404,908,932]" italics="true" pageId="7" pageNumber="62">Gilvossius</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC6E9FC35EAFB62D2" author="Manning" box="[412,694,908,932]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1992) Gilvossius, a new genus of callianassid shrimp from the eastern United States (Crustacea: Decapoda: Thalassinidea). Bulletin of Marine Science, 49, 558 - 561." type="journal article" year="1992">Manning &amp; Felder, 1992</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC5B6FC35EB2C62D2" box="[707,865,908,932]" class="Malacostraca" family="Callianassidae" genus="Necallianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC5B6FC35EB2C62D2" box="[707,865,908,932]" italics="true" pageId="7" pageNumber="62">Necallianassa</emphasis>
</taxonomicName>
<bibRefCitation id="5674AD9AFFD5FFDAC41FFC35ECCE62D2" author="Heard" box="[874,1155,908,932]" pageId="7" pageNumber="62" refString="Heard, R. &amp; Manning, R. B. 1998. A new genus and species of ghost shrimp (Crustacea: Decapoda: Callianassidae) from the Atlantic Ocean. Proceedings of the Biological Society of Washington, 111, 883 - 888." type="journal article" year="1998">
<collectingCountry id="4AF290FBFFD5FFDAC41FFC35EBE362D2" box="[874,942,908,932]" name="Heard Island and McDonald Islands" pageId="7" pageNumber="62">Heard</collectingCountry>
&amp; Manning, 1998
</bibRefCitation>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC3FBFC34E96662B1" authority="Manning &amp; Felder, 1991" authorityName="Manning &amp; Felder" authorityYear="1991" class="Malacostraca" family="Callianassidae" genus="Neotrypaea" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC3FBFC34ED5C62D2" box="[1166,1297,909,932]" italics="true" pageId="7" pageNumber="62">Neotrypaea</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC26CFC35E96662B1" author="Manning" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder, 1991</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC648FC09EB6562B1" authority="Manning &amp; Tamaki, 1998" authorityName="Manning &amp; Tamaki" authorityYear="1998" box="[317,808,943,968]" class="Malacostraca" family="Callianassidae" genus="Nihonotrypaea" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC648FC09E9A862BE" box="[317,485,944,968]" italics="true" pageId="7" pageNumber="62">Nihonotrypaea</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC687FC16EB6562B1" author="Manning" box="[498,808,943,967]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Tamaki, A. (1998) A new genus of ghost shrimp from Japan. Proceedings of the Biological Society Washington, 111, 889 - 892." type="journal article" year="1998">Manning &amp; Tamaki, 1998</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC44CFC08ECF462B1" authority="Manning &amp; Felder, 1991" authorityName="Manning &amp; Felder" authorityYear="1991" box="[825,1209,943,968]" class="Malacostraca" family="Callianassidae" genus="Notiax" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC44CFC08EBC962BE" box="[825,900,945,968]" italics="true" pageId="7" pageNumber="62">Notiax</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC4E5FC16ECF462B1" author="Manning" box="[912,1209,943,967]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder, 1991</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC3BEFC08E906629A" authority="Rodrigues &amp; Manning, 1992" authorityName="Rodrigues &amp; Manning" authorityYear="1992" class="Malacostraca" family="Callianassidae" genus="Poti" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC3BEFC08ECB462BE" box="[1227,1273,945,968]" italics="true" pageId="7" pageNumber="62">Poti</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC273FC16E906629A" author="Rodrigues" pageId="7" pageNumber="62" refString="Rodrigues, S. A. &amp; Manning, R. B. (1992) Two new callianassid shrimps from Brazil (Crustacea: Decapoda: Thalassinidea). Proceeding of the Biological Society of Washington, 105, 324 - 330." type="journal article" year="1992">Rodrigues &amp; Manning, 1992</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC62EFC6DEA41629A" box="[347,524,980,1004]" class="Malacostraca" family="Callianassidae" genus="Pseudobiffarius" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC62EFC6DEA41629A" box="[347,524,980,1004]" italics="true" pageId="7" pageNumber="62">Pseudobiffarius</emphasis>
</taxonomicName>
<bibRefCitation id="5674AD9AFFD5FFDAC56FFC6DEB0C629A" author="Heard" box="[538,833,980,1004]" pageId="7" pageNumber="62" refString="Heard, R. &amp; Manning, R. B. 2000. A new genus and species of ghost shrimp from Tobago, West Indies (Crustacea: Decapoda: Callianassidae). Proceedings of the Biological Society of Washington, 113, 70 - 76." type="journal article" year="2000">
<collectingCountry id="4AF290FBFFD5FFDAC56FFC6DEA13629A" box="[538,606,980,1004]" name="Heard Island and McDonald Islands" pageId="7" pageNumber="62">Heard</collectingCountry>
&amp; Manning, 2000
</bibRefCitation>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC427FC6DEC09629A" authority="Bate, 1888" authorityName="Bate" authorityYear="1888" box="[850,1092,980,1004]" class="Malacostraca" family="Callianassidae" genus="Scallasis" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC427FC6DEBFB629A" box="[850,950,980,1004]" italics="true" pageId="7" pageNumber="62">Scallasis</emphasis>
Bate, 1888
</taxonomicName>
, and 
<taxonomicName id="F5E5ABE8FFD5FFDAC3FFFC6CED34629A" authority="Dana, 1852" authorityName="Dana" authorityYear="1852" box="[1162,1401,980,1004]" class="Malacostraca" family="Callianassidae" genus="Trypaea" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC3FFFC6CECA9629A" box="[1162,1252,981,1004]" italics="true" pageId="7" pageNumber="62">Trypaea</emphasis>
Dana, 
<quantity id="F51D7D8EFFD5FFDAC234FC6DED34629A" box="[1345,1401,980,1004]" metricMagnitude="1" metricUnit="m" metricValue="4.70408" pageId="7" pageNumber="62" unit="in" value="1852.0">1852</quantity>
</taxonomicName>
in 
<taxonomicName id="F5E5ABE8FFD5FFDAC7E2FC41E9506566" box="[151,285,1016,1040]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC7E2FC41E9506566" box="[151,285,1016,1040]" italics="true" pageId="7" pageNumber="62">Callianassa</emphasis>
</taxonomicName>
, but later he (
<bibRefCitation id="5674AD9AFFD5FFDAC6CBFC41EA0D6566" author="Sakai" box="[446,576,1016,1040]" pageId="7" pageNumber="62" refString="Sakai, K. (2011) Axioidea of the world and a reconsideration of the Callianassoidea (Decapoda, Thalassinidea, Callianassida). Crustaceana Monographs, 13, 1 - 616." type="journal article" year="2011">Sakai 2011</bibRefCitation>
) finally recognized six genera, i.e., 
<taxonomicName id="F5E5ABE8FFD5FFDAC4AEFC41EC2C6566" box="[987,1121,1016,1040]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus" sensu="stricto">
<emphasis id="00910C79FFD5FFDAC4AEFC41EC2C6566" box="[987,1121,1016,1040]" italics="true" pageId="7" pageNumber="62">Callianassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD5FFDAC31FFC40ECB76566" box="[1130,1274,1016,1040]" pageId="7" pageNumber="62" sensu="stricto">sensu stricto</taxonomicNameLabel>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC273FC41E9536542" authority="Sakai, 2011" authorityName="Sakai" authorityYear="2011" class="Malacostraca" family="Callianassidae" genus="Cheramoides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC273FC41EDD66566" box="[1286,1435,1016,1040]" italics="true" pageId="7" pageNumber="62">Cheramoides</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC7E2FBA5E9536542" author="Sakai" box="[151,286,1052,1076]" pageId="7" pageNumber="62" refString="Sakai, K. (2011) Axioidea of the world and a reconsideration of the Callianassoidea (Decapoda, Thalassinidea, Callianassida). Crustaceana Monographs, 13, 1 - 616." type="journal article" year="2011">Sakai, 2011</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC65FFBA5E9D06542" box="[298,413,1052,1076]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC65FFBA5E9D06542" box="[298,413,1052,1076]" italics="true" pageId="7" pageNumber="62">Cheramus</emphasis>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC6D9FBA5EA6D6542" box="[428,544,1052,1076]" class="Malacostraca" family="Callianassidae" genus="Gilvossius" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC6D9FBA5EA6D6542" box="[428,544,1052,1076]" italics="true" pageId="7" pageNumber="62">Gilvossius</emphasis>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC55AFBA4EA346542" box="[559,633,1053,1076]" class="Malacostraca" family="Callianassidae" genus="Notiax" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC55AFBA4EA346542" box="[559,633,1053,1076]" italics="true" pageId="7" pageNumber="62">Notiax</emphasis>
</taxonomicName>
and 
<taxonomicName id="F5E5ABE8FFD5FFDAC5C7FBA4EB436542" box="[690,782,1053,1076]" class="Malacostraca" family="Callianassidae" genus="Trypaea" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC5C7FBA4EB436542" box="[690,782,1053,1076]" italics="true" pageId="7" pageNumber="62">Trypaea</emphasis>
</taxonomicName>
. Three genera proposed for species placed in 
<taxonomicName id="F5E5ABE8FFD5FFDAC263FBA5EDD16542" box="[1302,1436,1052,1076]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="00910C79FFD5FFDAC263FBA5EDD16542" box="[1302,1436,1052,1076]" italics="true" pageId="7" pageNumber="62">Callianassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD5FFDAC7E2FBF9E8F5652E" box="[151,184,1088,1112]" pageId="7" pageNumber="62" sensu="lato">s.l.</taxonomicNameLabel>
, since Sakai (1999, 2005), i.e., 
<taxonomicName id="F5E5ABE8FFD5FFDAC548FBF8EC56652E" authority="Komai &amp; Tachikawa, 2008" authorityName="Komai &amp; Tachikawa" authorityYear="2008" box="[573,1051,1088,1112]" class="Malacostraca" family="Callianassidae" genus="Paratrypaea" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC548FBF8EA86652E" box="[573,715,1089,1112]" italics="true" pageId="7" pageNumber="62">Paratrypaea</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC5ADFBF9EC56652E" author="Komai" box="[728,1051,1088,1112]" pageId="7" pageNumber="62" refString="Komai, T. &amp; Tachikawa, H. (2008) Thalassinidean shrimps (Crustacea: Decapoda) from the Ogasawara Islands, Japan. Natural History Research, 10, 19 - 52." type="journal article" year="2008">Komai &amp; Tachikawa, 2008</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="F5E5ABE8FFD5FFDAC359FBF9ECD3652E" box="[1068,1182,1088,1112]" class="Malacostraca" family="Callianassidae" genus="Pestarella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC359FBF9ECD3652E" box="[1068,1182,1088,1112]" italics="true" pageId="7" pageNumber="62">Pestarella</emphasis>
</taxonomicName>
<bibRefCitation id="5674AD9AFFD5FFDAC3D9FBF8ED2F652E" author="Ngoc-Ho" box="[1196,1378,1088,1113]" pageId="7" pageNumber="62" refString="Ngoc-Ho, N. (2003) European and Mediterranean Thalassinidea (Crustacea, Decapoda). Zoosystema, 25, 439 - 555." type="journal article" year="2003">Ngoc-Ho, 2003</bibRefCitation>
, and 
<taxonomicName id="F5E5ABE8FFD5FFDAC7E2FBDDEA2D650A" authority="Komai &amp; Tachikawa, 2008" authorityName="Komai &amp; Tachikawa" authorityYear="2008" box="[151,608,1124,1148]" class="Malacostraca" family="Callianassidae" genus="Rayllianassa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC7E2FBDDE965650A" box="[151,296,1124,1148]" italics="true" pageId="7" pageNumber="62">Rayllianassa</emphasis>
<bibRefCitation id="5674AD9AFFD5FFDAC65BFBDDEA2D650A" author="Komai" box="[302,608,1124,1148]" pageId="7" pageNumber="62" refString="Komai, T. &amp; Tachikawa, H. (2008) Thalassinidean shrimps (Crustacea: Decapoda) from the Ogasawara Islands, Japan. Natural History Research, 10, 19 - 52." type="journal article" year="2008">Komai &amp; Tachikawa, 2008</bibRefCitation>
</taxonomicName>
, were placed in the synonymy of 
<taxonomicName id="F5E5ABE8FFD5FFDAC4ADFBDDEC00650A" box="[984,1101,1124,1148]" class="Malacostraca" family="Callianassidae" genus="Gilvossius" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC4ADFBDDEC00650A" box="[984,1101,1124,1148]" italics="true" pageId="7" pageNumber="62">Gilvossius</emphasis>
</taxonomicName>
(
<taxonomicName id="F5E5ABE8FFD5FFDAC328FBDCECA7650A" box="[1117,1258,1125,1148]" class="Malacostraca" family="Callianassidae" genus="Paratrypaea" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC328FBDCECA7650A" box="[1117,1258,1125,1148]" italics="true" pageId="7" pageNumber="62">Paratrypaea</emphasis>
</taxonomicName>
and 
<taxonomicName id="F5E5ABE8FFD5FFDAC255FBDDEDDF650A" box="[1312,1426,1124,1148]" class="Malacostraca" family="Callianassidae" genus="Pestarella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC255FBDDEDDF650A" box="[1312,1426,1124,1148]" italics="true" pageId="7" pageNumber="62">Pestarella</emphasis>
</taxonomicName>
) and 
<taxonomicName id="F5E5ABE8FFD5FFDAC7B2FB30E9F265D6" authority="(Rayllianassa)" baseAuthorityName="Rayllianassa" box="[199,447,1160,1184]" class="Malacostraca" family="Callianassidae" genus="Notiax" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC7B2FB30E95C65D6" box="[199,273,1161,1184]" italics="true" pageId="7" pageNumber="62">Notiax</emphasis>
(
<emphasis id="00910C79FFD5FFDAC656FB31E9F965D6" box="[291,436,1160,1184]" italics="true" pageId="7" pageNumber="62">Rayllianassa</emphasis>
)
</taxonomicName>
. Sakai’s (2011) classification is mainly based only on characters of the first and second pleopods in males, and does not fully reflect morphological diversity seen in species in this group of genera. We still prefer to follow the scheme of 
<bibRefCitation id="5674AD9AFFD5FFDAC557FB69EB0A659E" author="Manning" box="[546,839,1232,1256]" pageId="7" pageNumber="62" refString="Manning, R. B. &amp; Felder, D. L. (1991) Revision of the American Callianassidae (Crustacea: Decapoda: Thalassinidea). Proceedings of the Biological Society of Washington, 104, 764 - 792." type="journal article" year="1991">Manning &amp; Felder (1991)</bibRefCitation>
, 
<bibRefCitation id="5674AD9AFFD5FFDAC427FB68EBA8659E" author="Poore" box="[850,997,1232,1256]" pageId="7" pageNumber="62" refString="Poore, G. C. B. (1994) A phylogeny of the families of Thalassinidea (Crustacea: Decapoda) with keys to families and genera. Memoirs of Museum Victoria, 54, 79 - 120." type="journal article" year="1994">Poore (1994)</bibRefCitation>
and 
<bibRefCitation id="5674AD9AFFD5FFDAC369FB69ECB9659E" box="[1052,1268,1232,1256]" pageId="7" pageNumber="62" refString="Tudge, C. C., Poore, G. C. G. &amp; Lemaitre, R. (2000) Preliminary phylogenetic analysis of generic relationships within the Callianassidae and Ctenochelidae (Decapoda: Thalassinidea: Callianassoidea). Journal of Crustacean Biology, 20, 129 - 149." type="journal article">
Tudge 
<emphasis id="00910C79FFD5FFDAC31FFB68ECEF659E" box="[1130,1186,1232,1256]" italics="true" pageId="7" pageNumber="62">et al.</emphasis>
(2000)
</bibRefCitation>
in recognizing these various genera as valid taxa because it reflects the phylogenetic structure and the morphological diversity in species previously referred to 
<taxonomicName id="F5E5ABE8FFD5FFDAC69DFAA1EA236446" box="[488,622,1304,1328]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="00910C79FFD5FFDAC69DFAA1EA236446" box="[488,622,1304,1328]" italics="true" pageId="7" pageNumber="62">Callianassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD5FFDAC500FAA1EADB6446" box="[629,662,1304,1328]" pageId="7" pageNumber="62" sensu="lato">s.l.</taxonomicNameLabel>
</paragraph>
<paragraph id="325AD06BFFD5FFDAC7B2FA85EDD166AA" blockId="7.[151,1437,151,2012]" pageId="7" pageNumber="62">
Following Poore’s (1994) key, the present new species is assigned to 
<taxonomicName id="F5E5ABE8FFD5FFDAC497FA85EC186422" box="[994,1109,1340,1364]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC497FA85EC186422" box="[994,1109,1340,1364]" italics="true" pageId="7" pageNumber="62">Cheramus</emphasis>
</taxonomicName>
by the following characters: (1) cornea of eye subterminal and lateral; (2) no exopod on third maxilliped; (3) appendices internae on third to fifth pleopods slender, digitiform. The present new species is actually very similar to 
<taxonomicName id="F5E5ABE8FFD5FFDAC305FA3CE89564C9" authority="Sakai, 1970" authorityName="Sakai" authorityYear="1970" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC305FA3CED0964EA" box="[1136,1348,1412,1436]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
(Sakai, 1970)
</taxonomicName>
known from the southern part of the Sea of 
<collectingCountry id="4AF290FBFFD5FFDAC479FA11EB0264C9" box="[780,847,1448,1471]" name="Japan" pageId="7" pageNumber="62">Japan</collectingCountry>
. Shared characters include: (1) rostrum narrowly triangular, acuminate; (2) sixth abdominal somite slightly longer than wide; telson trapezoidal, slightly narrowing posteriorly, bearing small median tooth and two pairs of minute spiniform setae at posterolateral angles; (3) ischium-merus of third maxilliped broad, operculiform; (4) major cheliped massive, carpus higher than long; (5) ischia of both chelipeds each with distinct serration; and (6) merus of major cheliped at least with prominent tooth proximally. Combination of these characters clearly separate these two species from other known members assigned to 
<taxonomicName id="F5E5ABE8FFD5FFDAC656F939E9DB67EE" box="[291,406,1664,1688]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFD5FFDAC656F939E9DB67EE" box="[291,406,1664,1688]" italics="true" pageId="7" pageNumber="62">Cheramus</emphasis>
</taxonomicName>
by 
<bibRefCitation id="5674AD9AFFD5FFDAC6BDF9C6EAE267E1" box="[456,687,1663,1688]" pageId="7" pageNumber="62" refString="Tudge, C. C., Poore, G. C. G. &amp; Lemaitre, R. (2000) Preliminary phylogenetic analysis of generic relationships within the Callianassidae and Ctenochelidae (Decapoda: Thalassinidea: Callianassoidea). Journal of Crustacean Biology, 20, 129 - 149." type="journal article">
Tudge 
<emphasis id="00910C79FFD5FFDAC56FF938EA1B67EE" box="[538,598,1664,1688]" italics="true" pageId="7" pageNumber="62">et al.</emphasis>
(2000)
</bibRefCitation>
. 
<taxonomicName id="F5E5ABE8FFD5FFDAC5CBF939EBEE67EE" box="[702,931,1664,1688]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="cavifrons" status="sp. nov.">
<emphasis id="00910C79FFD5FFDAC5CBF939EBEE67EE" box="[702,931,1664,1688]" italics="true" pageId="7" pageNumber="62">Cheramus cavifrons</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFD5FFDAC4DBF939EBBD67EE" box="[942,1008,1664,1688]" pageId="7" pageNumber="62" rank="species">
<emphasis id="00910C79FFD5FFDAC4DBF939EBBD67EE" bold="true" box="[942,1008,1664,1688]" pageId="7" pageNumber="62">n. sp.</emphasis>
</taxonomicNameLabel>
can be easily distinguished from 
<taxonomicName id="F5E5ABE8FFD5FFDAC2F7F939E90567CA" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC2F7F939E90567CA" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
by the following characters (cf. 
<bibRefCitation id="5674AD9AFFD5FFDAC5B6F91DEBD767CA" author="Komai" box="[707,922,1700,1724]" pageId="7" pageNumber="62" refString="Komai, T., Ohtsuka, S., Nakaguchi, K. &amp; Go, A. (2002) Decapod crustaceans collected from the southern part of the Sea of Japan in 2000 - 2001 using TRV Toyoshio-maru. Natural History Research, 7, 19 - 73." type="journal article" year="2002">
Komai 
<emphasis id="00910C79FFD5FFDAC46CF91CEB1967CA" box="[793,852,1700,1724]" italics="true" pageId="7" pageNumber="62">et al.</emphasis>
2002
</bibRefCitation>
): (1) orbital margin distinctly concave in the new species, rather than sloping posteriorly in 
<taxonomicName id="F5E5ABE8FFD5FFDAC5DDF971EB3D6796" box="[680,880,1736,1760]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmu">
<emphasis id="00910C79FFD5FFDAC5DDF971EB3D6796" box="[680,880,1736,1760]" italics="true" pageId="7" pageNumber="62">C. spinophthalmu</emphasis>
</taxonomicName>
s; (2) distomesial process of eyestalk blunt in the new species, whereas sharply pointed, spiniform in 
<taxonomicName id="F5E5ABE8FFD5FFDAC5A9F954EBE06672" box="[732,941,1772,1796]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC5A9F954EBE06672" box="[732,941,1772,1796]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
; (3) antennular peduncle subequal in length to antennal peduncle in the new species, but longer than the latter in 
<taxonomicName id="F5E5ABE8FFD5FFDAC4E1F8A9EC28665E" box="[916,1125,1808,1832]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC4E1F8A9EC28665E" box="[916,1125,1808,1832]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
; (4) ischium-merus of third maxilliped relatively higher in the new species than in 
<taxonomicName id="F5E5ABE8FFD5FFDAC58BF88CEB9D663A" box="[766,976,1844,1868]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC58BF88CEB9D663A" box="[766,976,1844,1868]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
(about 1.3 times longer than high versus about 2.0 times as long); (5) merus of major cheliped bearing one prominent ventral spine in the new species, rather than two in 
<taxonomicName id="F5E5ABE8FFD5FFDAC66EF8C4E9A066E2" box="[283,493,1916,1940]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC66EF8C4E9A066E2" box="[283,493,1916,1940]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
; (6) merus of minor cheliped unarmed in the new species, but armed with tiny spine on ventral margin in 
<taxonomicName id="F5E5ABE8FFD5FFDAC6F0F818EA1566CE" box="[389,600,1952,1976]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC6F0F818EA1566CE" box="[389,600,1952,1976]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
; (7) propodus of third pereopod distinctly broader than carpus in the new species, nearly as wide as in 
<taxonomicName id="F5E5ABE8FFD5FFDAC698F87CEA8F66AA" box="[493,706,1988,2012]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="7" pageNumber="62" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFD5FFDAC698F87CEA8F66AA" box="[493,706,1988,2012]" italics="true" pageId="7" pageNumber="62">C. spinophthalmus</emphasis>
</taxonomicName>
; (8) uropodal rami less elongate in the new species than in 
<emphasis id="00910C79FFD5FFDAC2F7F87CEDD166AA" box="[1410,1436,1989,2012]" italics="true" pageId="7" pageNumber="62">C.</emphasis>
</paragraph>
<paragraph id="325AD06BFFDAFFD5C7E2FF21EAFA61A2" blockId="8.[151,1437,151,1543]" pageId="8" pageNumber="63">
<taxonomicName id="F5E5ABE8FFDAFFD5C7E2FF21E90561C6" box="[151,328,152,176]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFDAFFD5C7E2FF21E90561C6" box="[151,328,152,176]" italics="true" pageId="8" pageNumber="63">spinophthalmus</emphasis>
</taxonomicName>
; (9) uropodal endopod bearing a minute spine on lateral margin distal to midlength in the new species, whereas unarmed in 
<taxonomicName id="F5E5ABE8FFDAFFD5C6ABFF04EAFD61A2" box="[478,688,188,212]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="spinophthalmus">
<emphasis id="00910C79FFDAFFD5C6ABFF04EAFD61A2" box="[478,688,188,212]" italics="true" pageId="8" pageNumber="63">C. spinophthalmus</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="7AFF83E0FFDAFFD5C7B2FF59EC0E64C9" pageId="8" pageNumber="63" type="reference_group">
<paragraph id="325AD06BFFDAFFD5C7B2FF59EAD06262" blockId="8.[151,1437,151,1543]" pageId="8" pageNumber="63">
<taxonomicName id="F5E5ABE8FFDAFFD5C7B2FF59EAE16181" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" authority="Dworschak, 2003" authorityName="Dworschak" authorityYear="2003" box="[199,684,223,248]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C7B2FF59E998618E" box="[199,469,224,248]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
<bibRefCitation id="5674AD9AFFDAFFD5C695FF66EAE16181" author="Dworschak" box="[480,684,223,247]" pageId="8" pageNumber="63" refString="Dworschak, P. (2003) A new species of ghost shrimp from the Gulf of Aqaba, Red Sea (Crustacea: Decapoda: Callianassidae). Annalen des Naturhistorischen Museums in Wien, 104 B, 415 - 428." type="journal article" year="2003">Dworschak, 2003</bibRefCitation>
</taxonomicName>
, known from the Gulf of Aqaba, northern Red Sea, is also very similar to the present new species, particularly in the shape of the rostrum, the shape and armature of the telson, and the general shape and armature of the chelipeds (
<bibRefCitation id="5674AD9AFFDAFFD5C587FE9EEBF46049" author="Dworschak" box="[754,953,295,319]" pageId="8" pageNumber="63" refString="Dworschak, P. (2003) A new species of ghost shrimp from the Gulf of Aqaba, Red Sea (Crustacea: Decapoda: Callianassidae). Annalen des Naturhistorischen Museums in Wien, 104 B, 415 - 428." type="journal article" year="2003">Dworschak 2003</bibRefCitation>
). 
<bibRefCitation id="5674AD9AFFDAFFD5C4B9FE9EECD26049" author="Dworschak" box="[972,1183,295,319]" pageId="8" pageNumber="63" refString="Dworschak, P. (2003) A new species of ghost shrimp from the Gulf of Aqaba, Red Sea (Crustacea: Decapoda: Callianassidae). Annalen des Naturhistorischen Museums in Wien, 104 B, 415 - 428." type="journal article" year="2003">Dworschak (2003)</bibRefCitation>
noted difficulty in the decision of the generic position of his new species, and thus he placed it in 
<taxonomicName id="F5E5ABE8FFDAFFD5C49BFEF5EC396012" ID-CoL="f45854b2-a302-4361-bd40-0423151d5e6a" box="[1006,1140,332,356]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="genus" sensu="lato">
<emphasis id="00910C79FFDAFFD5C49BFEF5EC396012" box="[1006,1140,332,356]" italics="true" pageId="8" pageNumber="63">Callianassa</emphasis>
</taxonomicName>
<taxonomicNameLabel id="1BA2B102FFDAFFD5C30EFEF5ECD16012" box="[1147,1180,332,356]" pageId="8" pageNumber="63" sensu="lato">s.l.</taxonomicNameLabel>
<bibRefCitation id="5674AD9AFFDAFFD5C3D1FEF5ED7E6012" author="Sakai" box="[1188,1331,332,356]" pageId="8" pageNumber="63" refString="Sakai, K. (2011) Axioidea of the world and a reconsideration of the Callianassoidea (Decapoda, Thalassinidea, Callianassida). Crustaceana Monographs, 13, 1 - 616." type="journal article" year="2011">Sakai (2011)</bibRefCitation>
assigned 
<taxonomicName id="F5E5ABE8FFDAFFD5C7E2FEC9E9E560FE" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" box="[151,424,368,392]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C7E2FEC9E9E560FE" box="[151,424,368,392]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
</taxonomicName>
to 
<taxonomicName id="F5E5ABE8FFDAFFD5C6ACFEC9EA0160FE" ID-CoL="8f84ed4e-2899-4c8d-87f2-78cc7a7e5a75" box="[473,588,368,392]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFDAFFD5C6ACFEC9EA0160FE" box="[473,588,368,392]" italics="true" pageId="8" pageNumber="63">Cheramus</emphasis>
</taxonomicName>
mainly on the basis of the development of the male first and second pleopods, although 
<bibRefCitation id="5674AD9AFFDAFFD5C608FE2DEA1E60DA" author="Dworschak" box="[381,595,404,428]" pageId="8" pageNumber="63" refString="Dworschak, P. (2003) A new species of ghost shrimp from the Gulf of Aqaba, Red Sea (Crustacea: Decapoda: Callianassidae). Annalen des Naturhistorischen Museums in Wien, 104 B, 415 - 428." type="journal article" year="2003">Dworschak (2003)</bibRefCitation>
clarified the intraspecific variation in the structure of the male second pleopod. Nevertheless, 
<taxonomicName id="F5E5ABE8FFDAFFD5C6D7FE01EAE260A6" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" box="[418,687,440,464]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C6D7FE01EAE260A6" box="[418,687,440,464]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
</taxonomicName>
differs from other species assigned to 
<taxonomicName id="F5E5ABE8FFDAFFD5C305FE01ECAE60A6" ID-CoL="8f84ed4e-2899-4c8d-87f2-78cc7a7e5a75" box="[1136,1251,440,464]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFDAFFD5C305FE01ECAE60A6" box="[1136,1251,440,464]" italics="true" pageId="8" pageNumber="63">Cheramus</emphasis>
</taxonomicName>
by 
<bibRefCitation id="5674AD9AFFDAFFD5C267FE0EE8AC6082" pageId="8" pageNumber="63" refString="Tudge, C. C., Poore, G. C. G. &amp; Lemaitre, R. (2000) Preliminary phylogenetic analysis of generic relationships within the Callianassidae and Ctenochelidae (Decapoda: Thalassinidea: Callianassoidea). Journal of Crustacean Biology, 20, 129 - 149." type="journal article">
Tudge 
<emphasis id="00910C79FFDAFFD5C217FE00EDD160A6" box="[1378,1436,440,464]" italics="true" pageId="8" pageNumber="63">et al.</emphasis>
(2000)
</bibRefCitation>
in the structure of the appendices internae of the third to fifth pleopods. As mentioned above, in species of 
<taxonomicName id="F5E5ABE8FFDAFFD5C7E2FDB9E947636E" ID-CoL="8f84ed4e-2899-4c8d-87f2-78cc7a7e5a75" box="[151,266,512,536]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFDAFFD5C7E2FDB9E947636E" box="[151,266,512,536]" italics="true" pageId="8" pageNumber="63">Cheramus</emphasis>
</taxonomicName>
, including the present new species, the appendices internae are fully produced and digitiform in shape. In 
<taxonomicName id="F5E5ABE8FFDAFFD5C7CCFD9DE985634A" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" box="[185,456,548,572]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C7CCFD9DE985634A" box="[185,456,548,572]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
</taxonomicName>
, however, the appendices internae are stubby and partially embedded in the mesial margin of the endopod, though they are clearly projecting beyond the margins (
<bibRefCitation id="5674AD9AFFDAFFD5C362FDFEEC906329" author="Dworschak" box="[1047,1245,583,607]" pageId="8" pageNumber="63" refString="Dworschak, P. (2003) A new species of ghost shrimp from the Gulf of Aqaba, Red Sea (Crustacea: Decapoda: Callianassidae). Annalen des Naturhistorischen Museums in Wien, 104 B, 415 - 428." type="journal article" year="2003">Dworschak 2003</bibRefCitation>
). In addition, the following characters distinguish the present new species from 
<taxonomicName id="F5E5ABE8FFDAFFD5C408FDD5ECC063F2" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" box="[893,1165,620,644]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C408FDD5ECC063F2" box="[893,1165,620,644]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
</taxonomicName>
: (1) ventral margin of propodus of third pereopod generally convex with one subterminal spine in the new species, while undulate and unarmed in 
<taxonomicName id="F5E5ABE8FFDAFFD5C66AFD0DEA6663BA" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" box="[287,555,692,716]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C66AFD0DEA6663BA" box="[287,555,692,716]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
</taxonomicName>
; (2) uropodal endopod bearing one spinule on lateral margin and unarmed on dorsal surface in the new species, whereas unarmed on lateral margin but bearing two spiniform setae on dorsal surface posteriorly in 
<taxonomicName id="F5E5ABE8FFDAFFD5C6F9FD45EADB6262" ID-CoL="19f35390-049e-42a1-a931-38889dac59fc" box="[396,662,764,788]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="aqabaensis">
<emphasis id="00910C79FFDAFFD5C6F9FD45EADB6262" box="[396,662,764,788]" italics="true" pageId="8" pageNumber="63">Callianassa aqabaensis</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="325AD06BFFDAFFD5C7B2FCA6E9FA65D6" blockId="8.[151,1437,151,1543]" pageId="8" pageNumber="63">
The new species also resembles 
<taxonomicName id="F5E5ABE8FFDAFFD5C543FC99EB906241" ID-CoL="35c505dd-4de0-4217-a4da-7b92835d6d8a" authority="Sakai, 1988" authorityName="Sakai" authorityYear="1988" box="[566,989,799,824]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="acutirostella">
<emphasis id="00910C79FFDAFFD5C543FC99EB1D624E" box="[566,848,800,824]" italics="true" pageId="8" pageNumber="63">Callianassa acutirostella</emphasis>
<bibRefCitation id="5674AD9AFFDAFFD5C42DFCA6EB906241" author="Sakai" box="[856,989,799,823]" pageId="8" pageNumber="63" refString="Sakai, K. (1988) A new genus and five new species of Callianassidae (Crustacea: Decapoda: Thalassinidea) from northern Australia. The Beagle, Records of the Northern Territory Museum of Arts and Science, 5, 51 - 69." type="journal article" year="1988">Sakai, 1988</bibRefCitation>
</taxonomicName>
[assigned to 
<taxonomicName id="F5E5ABE8FFDAFFD5C301FC98EC9D624E" ID-CoL="a99ffa67-03f4-47f7-a13f-1905bfe9bf35" box="[1140,1232,801,824]" class="Malacostraca" family="Callianassidae" genus="Trypaea" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="genus">
<emphasis id="00910C79FFDAFFD5C301FC98EC9D624E" box="[1140,1232,801,824]" italics="true" pageId="8" pageNumber="63">Trypaea</emphasis>
</taxonomicName>
by 
<bibRefCitation id="5674AD9AFFDAFFD5C389FCA6EDDD6241" author="Sakai" box="[1276,1424,799,823]" pageId="8" pageNumber="63" refString="Sakai, K. (2011) Axioidea of the world and a reconsideration of the Callianassoidea (Decapoda, Thalassinidea, Callianassida). Crustaceana Monographs, 13, 1 - 616." type="journal article" year="2011">Sakai (2011)</bibRefCitation>
], described on the basis of the damaged 
<typeStatus id="ED5E6EC9FFDAFFD5C51EFCFDEA80622A" box="[619,717,836,860]" pageId="8" pageNumber="63" type="holotype">holotype</typeStatus>
from North West Shelf, Western 
<collectingCountry id="4AF290FBFFDAFFD5C315FCFDEC8B622A" box="[1120,1222,836,860]" name="Australia" pageId="8" pageNumber="63">Australia</collectingCountry>
(
<bibRefCitation id="5674AD9AFFDAFFD5C3AEFCFDED12622A" author="Sakai" box="[1243,1375,836,860]" pageId="8" pageNumber="63" refString="Sakai, K. (1988) A new genus and five new species of Callianassidae (Crustacea: Decapoda: Thalassinidea) from northern Australia. The Beagle, Records of the Northern Territory Museum of Arts and Science, 5, 51 - 69." type="journal article" year="1988">Sakai 1988</bibRefCitation>
) and subsequently recorded from the Arafura Sea (
<bibRefCitation id="5674AD9AFFDAFFD5C5EFFCDEEB506209" author="Sakai" box="[666,797,871,895]" pageId="8" pageNumber="63" refString="Sakai K. (2005) Callianassoidea of the world (Decapoda, Thalassinidea). Crustaceana Monographs, 4, 1 - 285." type="journal article" year="2005">Sakai 2005</bibRefCitation>
), in the shape of the rostrum, telson, eyestalks, and third maxilliped. However, the new species can be distinguished from the latter species by the following characters: (1) the orbital margin is evenly concave in 
<taxonomicName id="F5E5ABE8FFDAFFD5C5FCFC09EB3F62BE" ID-CoL="c9efeb54-bb31-4c25-aecf-e4fa540a96da" box="[649,882,944,968]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="cavifrons">
<emphasis id="00910C79FFDAFFD5C5FCFC09EB3F62BE" box="[649,882,944,968]" italics="true" pageId="8" pageNumber="63">Cheramus cavifrons</emphasis>
</taxonomicName>
, whereas it is mostly oblique in 
<taxonomicName id="F5E5ABE8FFDAFFD5C263FC09E96E629A" ID-CoL="35c505dd-4de0-4217-a4da-7b92835d6d8a" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="acutirostella">
<emphasis id="00910C79FFDAFFD5C263FC09E96E629A" italics="true" pageId="8" pageNumber="63">Callianassa acutirostella</emphasis>
</taxonomicName>
; (2) the ventral margin of the first abdominal pleuron is deeply notched in 
<taxonomicName id="F5E5ABE8FFDAFFD5C30FFC6DEDD9629A" ID-CoL="35c505dd-4de0-4217-a4da-7b92835d6d8a" box="[1146,1428,980,1004]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="acutirostella">
<emphasis id="00910C79FFDAFFD5C30FFC6DEDD9629A" box="[1146,1428,980,1004]" italics="true" pageId="8" pageNumber="63">Callianassa acutirostella</emphasis>
</taxonomicName>
, but such a deep notch is not seen in 
<taxonomicName id="F5E5ABE8FFDAFFD5C535FC41EB696566" ID-CoL="c9efeb54-bb31-4c25-aecf-e4fa540a96da" box="[576,804,1016,1040]" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="cavifrons">
<emphasis id="00910C79FFDAFFD5C535FC41EB696566" box="[576,804,1016,1040]" italics="true" pageId="8" pageNumber="63">Cheramus cavifrons</emphasis>
</taxonomicName>
; (3) the antennal scaphocerite is rounded in 
<taxonomicName id="F5E5ABE8FFDAFFD5C25CFC41E8B36542" ID-CoL="c9efeb54-bb31-4c25-aecf-e4fa540a96da" class="Malacostraca" family="Callianassidae" genus="Cheramus" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="cavifrons">
<emphasis id="00910C79FFDAFFD5C25CFC41E8B36542" italics="true" pageId="8" pageNumber="63">Cheramus cavifrons</emphasis>
</taxonomicName>
, rather than acuminate in 
<taxonomicName id="F5E5ABE8FFDAFFD5C556FBA5EB706542" ID-CoL="35c505dd-4de0-4217-a4da-7b92835d6d8a" box="[547,829,1052,1076]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="acutirostella">
<emphasis id="00910C79FFDAFFD5C556FBA5EB706542" box="[547,829,1052,1076]" italics="true" pageId="8" pageNumber="63">Callianassa acutirostella</emphasis>
</taxonomicName>
; (4) the chelipeds are greatly unequal even in females in the new species, rather than subequal in 
<taxonomicName id="F5E5ABE8FFDAFFD5C5D5FBF9EBF2652E" ID-CoL="35c505dd-4de0-4217-a4da-7b92835d6d8a" box="[672,959,1088,1112]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="acutirostella">
<emphasis id="00910C79FFDAFFD5C5D5FBF9EBF2652E" box="[672,959,1088,1112]" italics="true" pageId="8" pageNumber="63">Callianassa acutirostella</emphasis>
</taxonomicName>
; (5) the merus of the minor cheliped is unarmed on the ventral margin in 
<taxonomicName id="F5E5ABE8FFDAFFD5C54FFBDDEB6E650A" box="[570,803,1124,1148]" class="Insecta" family="Curculionidae" genus="Charamus" kingdom="Animalia" order="Coleoptera" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="cavifrons">
<emphasis id="00910C79FFDAFFD5C54FFBDDEB6E650A" box="[570,803,1124,1148]" italics="true" pageId="8" pageNumber="63">Charamus cavifrons</emphasis>
</taxonomicName>
, but there is a conspicuous spine on that margin in 
<taxonomicName id="F5E5ABE8FFDAFFD5C7E2FB31E9FD65D6" ID-CoL="35c505dd-4de0-4217-a4da-7b92835d6d8a" box="[151,432,1160,1184]" class="Malacostraca" family="Callianassidae" genus="Callianassa" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="species" species="acutirostella">
<emphasis id="00910C79FFDAFFD5C7E2FB31E9FD65D6" box="[151,432,1160,1184]" italics="true" pageId="8" pageNumber="63">Callianassa acutirostella</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="325AD06BFFDAFFD5C7B2FB14EC0E64C9" blockId="8.[151,1437,151,1543]" pageId="8" pageNumber="63">
Recent studies have demonstrated that chemosynthetic assemblages occur around the whale carcasses, with substantial similarities to hydrothermal vent or hydrocarbon seep communities (e.g., 
<bibRefCitation id="5674AD9AFFDAFFD5C31FFB76ED7B6591" author="Smith" box="[1130,1334,1231,1256]" pageId="8" pageNumber="63" refString="Smith, C. R., Kukert, H., Wheatcroft, R. A., Jumars P. A. &amp; Deming, J. W. (1989) Vent fauna on whale remains. Nature, 341, 27 - 28." type="journal article" year="1989">
Smith 
<emphasis id="00910C79FFDAFFD5C3C3FB68ECBC659E" box="[1206,1265,1232,1256]" italics="true" pageId="8" pageNumber="63">et al.</emphasis>
1989
</bibRefCitation>
; 
<bibRefCitation id="5674AD9AFFDAFFD5C230FB69E89E647A" author="Bennett" pageId="8" pageNumber="63" refString="Bennett, B. A., Smith, C. R., Glaser, B. &amp; Maybaum, H. L. (1994) Faunal community structure of a chemoautotrophic assemblage on whale bones in the deep northeast Pacific Ocean. Marine Ecology Progress Series, 108, 205 - 223." type="journal article" year="1994">Bennett 1994</bibRefCitation>
). Since the first discovery in 1987 from the Santa 
<taxonomicName id="F5E5ABE8FFDAFFD5C478FB4DEBF9647A" ID-CoL="8XK99" authority="Basin" authorityName="Basin" box="[781,948,1268,1292]" class="Insecta" family="Staphylinidae" genus="Catalina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="8" pageNumber="63" phylum="Arthropoda" rank="genus">Catalina Basin</taxonomicName>
, California, at a depth of 
<quantity id="F51D7D8EFFDAFFD5C3A3FB4DED61647A" box="[1238,1324,1268,1292]" metricMagnitude="3" metricUnit="m" metricValue="1.24" pageId="8" pageNumber="63" unit="m" value="1240.0">1240 m</quantity>
(
<bibRefCitation id="5674AD9AFFDAFFD5C24EFB4DE8B46459" author="Smith" pageId="8" pageNumber="63" refString="Smith, C. R., Kukert, H., Wheatcroft, R. A., Jumars P. A. &amp; Deming, J. W. (1989) Vent fauna on whale remains. Nature, 341, 27 - 28." type="journal article" year="1989">
Smith 
<emphasis id="00910C79FFDAFFD5C2FDFB4CE8F96446" italics="true" pageId="8" pageNumber="63">et al.</emphasis>
1989
</bibRefCitation>
), many whale-fall communities have been reported, including modern and fossil assemblages (
<bibRefCitation id="5674AD9AFFDAFFD5C24DFAAEE95B6422" author="Smith" pageId="8" pageNumber="63" refString="Smith, C. R. &amp; Baco, A. R. 2003. Ecology of whale falls at the deep-sea floor. In: Gibson R. N., Atkinson R. J. A. (Eds.), Oceanography and Marine Biology: An Annual Review. Taylor and Francis Inc., New York, pp. 311 - 354." type="book chapter" year="2003">Smith &amp; Baco 2003</bibRefCitation>
). 
<bibRefCitation id="5674AD9AFFDAFFD5C65CFA85EA6C6422" box="[297,545,1340,1364]" pageId="8" pageNumber="63" refString="Fujiwara, Y., Kawato, M., Yamamoto, T., Yamanaka, T., Sato-Okoshi, W., Noda, C., Tsuchida, S., Komai, T., Cubelio, S. S., Sasaki, T., Jacobsen, K., Kubokawa, K., Fujikura, K., Maruyama, T., Furushima, Y., Okoshi, K., Miyake, H., Miyazaki, M., Nogi, Y., Yatabe, A. &amp; Okutani, T. (2007) Three-year investigations into sperm whale-fall ecosystems in Japan. Marine Ecology, 28, 219 - 232." type="journal article">
Fujiwara 
<emphasis id="00910C79FFDAFFD5C6E0FA84E9836422" box="[405,462,1340,1364]" italics="true" pageId="8" pageNumber="63">et al.</emphasis>
(2007)
</bibRefCitation>
reported on invertebrate community from sperm whale-fall ecosystems, based on mass sinking of whale carcasses at shelf depths in the northwest Pacific. Thirty-six species of the 
<taxonomicName id="F5E5ABE8FFDAFFD5C259FAE6EDD16401" ID-CoL="33N" box="[1324,1436,1375,1399]" class="Malacostraca" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="order">Decapoda</taxonomicName>
were reported, including a number of unidentified species from various taxa. The present new species is the first representative of the 
<taxonomicName id="F5E5ABE8FFDAFFD5C6F7FA1EEA6964C9" ID-CoL="5b184d39-f8ea-420d-acad-9cb703e2a9c3" box="[386,548,1447,1471]" class="Malacostraca" family="Callianassidae" kingdom="Animalia" order="Decapoda" pageId="8" pageNumber="63" phylum="Arthropoda" rank="family">Callianassidae</taxonomicName>
to be associated with the whale-fall community.
</paragraph>
</subSubSection>
<subSubSection id="7AFF83E0FFDAFFD5C7B2FA75EDD16771" pageId="8" pageNumber="63" type="etymology">
<paragraph id="325AD06BFFDAFFD5C7B2FA75EDD16771" blockId="8.[151,1437,151,1543]" pageId="8" pageNumber="63">
<emphasis id="00910C79FFDAFFD5C7B2FA75E90B6492" bold="true" box="[199,326,1484,1508]" pageId="8" pageNumber="63">Etymology</emphasis>
. The specific name is a combination of the Latin, 
<emphasis id="00910C79FFDAFFD5C40DFA74EBF56492" box="[888,952,1485,1508]" italics="true" pageId="8" pageNumber="63">cavus</emphasis>
(concave) and 
<emphasis id="00910C79FFDAFFD5C311FA75ECD06492" box="[1124,1181,1484,1508]" italics="true" pageId="8" pageNumber="63">frons</emphasis>
(front), in reference to the characteristic deeply concave orbital margins of the carapace of this new species. Used as a noun in apposition.
</paragraph>
</subSubSection>
</treatment>
</document>