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<document id="9265FE8C395D39D623BD1D49B4A10ECD" ID-CLB-Dataset="62926" ID-DOI="10.5281/zenodo.6608481" ID-GBIF-Dataset="6136b4e9-16b8-46eb-8a69-14092cd2707b" ID-ISBN="978-84-96553-93-4" ID-Zenodo-Dep="6608481" IM.metadata_requiresApprovalFor="plazi" IM.taxonomicNames_requiresApprovalFor="plazi" checkinTime="1654194389443" checkinUser="diego" docAuthor="Russell A. Mittermeier &amp; Don E. Wilson" docDate="2014" docId="035387C7FFC2FFAFFA6F1378FAB6FD9D" docLanguage="en" docName="hbmw_4_Ziphiidae_0326.pdf.imf" docOrigin="Handbook of the Mammals of the World Volume 4 Sea Mammals, Barcelona: Lynx Edicions" docTitle="Mesoplodon stejnegeri True 1885" docType="treatment" docVersion="6" lastPageNumber="352" masterDocId="FF6AFFBFFFC7FFA9FFE31407FFC2FFE9" masterDocTitle="Ziphiidae" masterLastPageNumber="357" masterPageNumber="326" pageNumber="351" updateTime="1699338817089" updateUser="ExternalLinkService">
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<mods:title id="D0539673CB1D24112205A71D7BD98253">Ziphiidae</mods:title>
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<mods:namePart id="3D889F334CF65ADADE5A4AA8AB19B0B3">Russell A. Mittermeier</mods:namePart>
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<mods:namePart id="482940B9A7318ED0C5C6F9A9331766D9">Don E. Wilson</mods:namePart>
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<mods:title id="2C5141C1E0458956CF3FB7C24864AED3">Handbook of the Mammals of the World Volume 4 Sea Mammals</mods:title>
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<treatment id="035387C7FFC2FFAFFA6F1378FAB6FD9D" ID-DOI="http://doi.org/10.5281/zenodo.6608551" ID-GBIF-Taxon="195728635" ID-Zenodo-Dep="6608551" LSID="urn:lsid:plazi:treatment:035387C7FFC2FFAFFA6F1378FAB6FD9D" httpUri="http://treatment.plazi.org/id/035387C7FFC2FFAFFA6F1378FAB6FD9D" lastPageId="6" lastPageNumber="352" pageId="5" pageNumber="351">
<subSubSection id="C3E0655AFFC2FFACFA6F1378FA6FF844" box="[1420,1453,1919,1965]" pageId="5" pageNumber="351" type="multiple">
<paragraph id="8B4536D1FFC2FFACFA6F1378FA6FF844" blockId="5.[1418,2463,1919,2047]" box="[1420,1453,1919,1965]" pageId="5" pageNumber="351">
<heading id="D00D81BDFFC2FFACFA6F1378FA6FF844" box="[1420,1453,1919,1965]" pageId="5" pageNumber="351">
<figureCitation id="13C12A54FFC2FFACFA6F1378FA6FF844" box="[1420,1453,1919,1965]" captionStart="Plate 14: Ziphiidae" captionStartId="2.[159,189,3440,3461]" captionTargetBox="[12,2776,14,3654]" captionTargetPageId="1" captionText="1. Bairds Beaked Whale (Berardius baiwrdu), 2. Arnouxs Beaked Whale (Berardius arnuxu), 3. Cuviers Beaked Whale (Ziphius cavirostris), 4. Northern Bottlenose Whale (Hyperoodon ampullatus), 5. Southern Bottlenose Whale (Hyperoodon planifrons), 6. Shepherds Beaked Whale (Tasmacetus shepherd), 7. Longmans Beaked Whale (Indopacetus pacificus), 8. Hubbss Beaked Whale (Mesoplodon carlhubbsi), 9. Stejnegers Beaked Whale (Mesoplodon stejnegeri), 10. Pygmy Beaked Whale (Mesoplodon peruvianus), 11. Perrins Beaked Whale (Mesoplodon perrini), 12. Trues Beaked Whale (Mesoplodon marus), 13. Strap-toothed Whale (Mesoplodon layardii), 14. Hectors Beaked Whale (Mesoplodon hectori)" figureDoi="http://doi.org/10.5281/zenodo.6608555" httpUri="https://zenodo.org/record/6608555/files/figure.png" pageId="5" pageNumber="351">9.</figureCitation>
</heading>
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<subSubSection id="C3E0655AFFC2FFACFA5D1378F815F844" box="[1470,2007,1919,1965]" pageId="5" pageNumber="351" type="vernacular_names">
<paragraph id="8B4536D1FFC2FFACFA5D1378F815F844" blockId="5.[1418,2463,1919,2047]" box="[1470,2007,1919,1965]" pageId="5" pageNumber="351">
<heading id="D00D81BDFFC2FFACFA5D1378F815F844" box="[1470,2007,1919,1965]" pageId="5" pageNumber="351">
<vernacularName id="05F946FFFFC2FFACFA5D1378F815F844" box="[1470,2007,1919,1965]" pageId="5" pageNumber="351">Stejnegers Beaked Whale</vernacularName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACF7EF1378F65CF844" box="[2060,2462,1919,1965]" pageId="5" pageNumber="351" type="nomenclature">
<paragraph id="8B4536D1FFC2FFACF7EF1378F65CF844" blockId="5.[1418,2463,1919,2047]" box="[2060,2462,1919,1965]" pageId="5" pageNumber="351">
<heading id="D00D81BDFFC2FFACF7EF1378F65CF844" box="[2060,2462,1919,1965]" pageId="5" pageNumber="351">
<taxonomicName id="4CFA4D52FFC2FFACF7EF1378F65CF844" ID-CoL="4256W" authorityName="True" authorityYear="1885" box="[2060,2462,1919,1965]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="species" species="stejnegeri">
<emphasis id="B98EEAC3FFC2FFACF7EF1378F65CF844" box="[2060,2462,1919,1965]" italics="true" pageId="5" pageNumber="351">Mesoplodon stejnegeri</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA6F13B8F77FF812" pageId="5" pageNumber="351" type="vernacular_names">
<paragraph id="8B4536D1FFC2FFACFA6F13B8F6B6F83D" blockId="5.[1418,2463,1919,2047]" box="[1420,2420,1983,2004]" pageId="5" pageNumber="351">
<heading id="D00D81BDFFC2FFACFA6F13B8F6B6F83D" box="[1420,2420,1983,2004]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA6F13B8FA15F83D" bold="true" box="[1420,1495,1983,2004]" pageId="5" pageNumber="351">French:</emphasis>
<vernacularName id="05F946FFFFC2FFACFA0213B8F92EF83D" box="[1505,1772,1983,2004]" pageId="5" pageNumber="351">Baleine-a-bec de Stejneger</vernacularName>
/
<emphasis id="B98EEAC3FFC2FFACF8E213B8F899F83D" bold="true" box="[1793,1883,1983,2004]" pageId="5" pageNumber="351">German:</emphasis>
<vernacularName id="05F946FFFFC2FFACF88613B8F78BF83D" box="[1893,2121,1983,2004]" pageId="5" pageNumber="351">Stejneger-Zweizahnwal</vernacularName>
/
<emphasis id="B98EEAC3FFC2FFACF7BC13B8F778F83D" bold="true" box="[2143,2234,1983,2004]" pageId="5" pageNumber="351">Spanish:</emphasis>
<vernacularName id="05F946FFFFC2FFACF72013B8F6B6F83D" box="[2243,2420,1983,2004]" pageId="5" pageNumber="351">Zifio de Stejneger</vernacularName>
</heading>
</paragraph>
<paragraph id="8B4536D1FFC2FFACFA6813E1F77FF812" blockId="5.[1418,2463,1919,2047]" box="[1419,2237,2022,2043]" pageId="5" pageNumber="351">
<heading id="D00D81BDFFC2FFACFA6813E1F77FF812" box="[1419,2237,2022,2043]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA6813E1F940F812" bold="true" box="[1419,1666,2022,2043]" pageId="5" pageNumber="351">Other common names:</emphasis>
<vernacularName id="05F946FFFFC2FFACF96F13E1F84CF812" box="[1676,1934,2022,2043]" pageId="5" pageNumber="351">Bering Sea Beaked Whale</vernacularName>
,
<vernacularName id="05F946FFFFC2FFACF87F13E1F77FF812" box="[1948,2237,2022,2043]" pageId="5" pageNumber="351">Sabertoothed Beaked Whale</vernacularName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACF8141C2AF783F79B" pageId="5" pageNumber="351" type="reference_group">
<paragraph id="8B4536D1FFC2FFACF8141C2AF783F79B" blockId="5.[2039,2622,2093,2516]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACF8141C2AF750F7A3" bold="true" box="[2039,2194,2093,2122]" pageId="5" pageNumber="351">Taxonomy.</emphasis>
<taxonomicName id="4CFA4D52FFC2FFACF7571C2AF7FFF79B" authority="True, 1885" authorityName="True" authorityYear="1885" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="species" species="stejnegert">Mesoplodon stejnegert True, 1885</taxonomicName>
,
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACF7B11C5EF754F770" pageId="5" pageNumber="351" type="materials_examined">
<paragraph id="8B4536D1FFC2FFACF7B11C5EF754F770" blockId="5.[2039,2622,2093,2516]" pageId="5" pageNumber="351">
<materialsCitation id="3B923C8CFFC2FFACF7B11C5EF754F770" ID-GBIF-Occurrence="3801074319" pageId="5" pageNumber="351">Russia, Commander Islands, “Bering Island.”</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACF81B1C98F6A3F729" box="[2040,2401,2207,2240]" pageId="5" pageNumber="351" type="discussion">
<paragraph id="8B4536D1FFC2FFACF81B1C98F6A3F729" blockId="5.[2039,2622,2093,2516]" box="[2040,2401,2207,2240]" pageId="5" pageNumber="351">This species is monotypic.</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACF81B1CCCF5F9F63D" pageId="5" pageNumber="351" type="distribution">
<caption id="DF856659FFC2FFACF81B1CCCF5F9F63D" ID-DOI="http://doi.org/10.5281/zenodo.6608511" ID-Zenodo-Dep="6608511" httpUri="https://zenodo.org/record/6608511/files/figure.png" inLine="true" pageId="5" pageNumber="351" targetBox="[1421,2011,2095,2508]" targetPageId="5">
<paragraph id="8B4536D1FFC2FFACF81B1CCCF5F9F63D" blockId="5.[2039,2622,2093,2516]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACF81B1CCCF764F701" bold="true" box="[2040,2214,2251,2280]" pageId="5" pageNumber="351">Distribution.</emphasis>
Endemic to cold temperate and subpolar waters of N Pacific Ocean, from the relatively shallow waters of the Bering Sea in the N to S Japan (W Pacific Ocean) and C California (E Pacific Ocean); itis the only species of
<taxonomicName id="4CFA4D52FFC2FFACF6481D93F5FCF644" authorityName="Gervais" authorityYear="1850" box="[2475,2622,2452,2477]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="genus">Mesoplodon</taxonomicName>
that commonly occurs in the Sea ofJapan.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA681DD8F82CF4DF" pageId="5" pageNumber="351" type="description">
<paragraph id="8B4536D1FFC2FFACFA681DD8F82CF4DF" blockId="5.[1417,2623,2527,3303]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA681DD8F941F615" bold="true" box="[1419,1667,2527,2556]" pageId="5" pageNumber="351">Descriptive notes.</emphasis>
Total length 480-574 cm; weight 1000-1300 kg. Body of Stejnegers Beaked Whale is spindle-shaped, with greatest girth around its mid-point. Flukes are wide in relation to body length, and tailstock is compressed laterally. Dorsal fin is small and set approximately two-thirds the distance between tip of the beak and end of the tail. Males and females are uniformly gray to black. Adult male Stejnegers Beaked Whales may have a number of long white lines that are unpigmented scars from aggressing male—male interactions. Rostrum and lowerjaw form a short, indistinct beak, and there are two grooves on the throat. Lowerjaw of adult males is arched, and a pair of triangular tusks is found midway alongit.
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA681F46F692F444" pageId="5" pageNumber="351" type="biology_ecology">
<paragraph id="8B4536D1FFC2FFACFA681F46F692F444" blockId="5.[1417,2623,2527,3303]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA681F46FA3BF4B7" bold="true" box="[1419,1529,2881,2910]" pageId="5" pageNumber="351">Habitat.</emphasis>
Primarily waters deeper than 200 m, and like other species of
<taxonomicName id="4CFA4D52FFC2FFACF6411F46F5FAF4B7" authorityName="Gervais" authorityYear="1850" box="[2466,2616,2881,2910]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="genus">Mesoplodon</taxonomicName>
, Stejnegers Beaked Whale may preferentially occur over areas of complex seabed topography, butits habitat preferences have not been studied in detail.
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA681FB5F754F3CA" pageId="5" pageNumber="351" type="food_feeding">
<paragraph id="8B4536D1FFC2FFACFA681FB5F754F3CA" blockId="5.[1417,2623,2527,3303]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA681FB5F953F43A" bold="true" box="[1419,1681,2994,3027]" pageId="5" pageNumber="351">Food and Feeding.</emphasis>
Stejnegers Beaked Whale primarily consumes species of deep-water squid. As with other species of beaked whales, Stejnegers Beaked Whale islikely to forage at depths greater than 500 m for much ofits life.
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA68182AF70CF3A3" box="[1419,2254,3117,3146]" pageId="5" pageNumber="351" type="breeding">
<paragraph id="8B4536D1FFC2FFACFA68182AF70CF3A3" blockId="5.[1417,2623,2527,3303]" box="[1419,2254,3117,3146]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA68182AF9D2F3A3" bold="true" box="[1419,1552,3117,3146]" pageId="5" pageNumber="351">Breeding.</emphasis>
There is no information available for this species.
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA6A1853F6F0F398" box="[1417,2354,3156,3185]" pageId="5" pageNumber="351" type="activity">
<paragraph id="8B4536D1FFC2FFACFA6A1853F6F0F398" blockId="5.[1417,2623,2527,3303]" box="[1417,2354,3156,3185]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA6A1853F9B1F398" bold="true" box="[1417,1651,3156,3185]" pageId="5" pageNumber="351">Activity patterns.</emphasis>
There is no information available forthis species.
</paragraph>
</subSubSection>
<subSubSection id="C3E0655AFFC2FFACFA68187BF5DAF30E" pageId="5" pageNumber="351" type="biology_ecology">
<paragraph id="8B4536D1FFC2FFACFA68187BF5DAF30E" blockId="5.[1417,2623,2527,3303]" pageId="5" pageNumber="351">
<emphasis id="B98EEAC3FFC2FFACFA68187BF7F0F370" bold="true" box="[1419,2098,3196,3225]" pageId="5" pageNumber="351">Movements, Home range and Social organization.</emphasis>
There is nospecific information available for this species, but Stejnegers Beaked Whales are known to occur in small groups offive or fewer individuals. The typical composition of these groups remains unclear.
</paragraph>
</subSubSection>
<caption id="DF856659FFC2FFACFF72194FFD6DF26D" ID-DOI="http://doi.org/10.5281/zenodo.6608561" ID-Zenodo-Dep="6608561" httpUri="https://zenodo.org/record/6608561/files/figure.png" pageId="5" pageNumber="351" startId="5.[145,175,3400,3421]" targetBox="[12,2776,14,3654]" targetPageId="1">
<paragraph id="8B4536D1FFC2FFACFF72194FFD6DF26D" blockId="5.[144,2492,3399,3464]" pageId="5" pageNumber="351">
On following pages: 10. Pygmy Beaked Whale (
<taxonomicName id="4CFA4D52FFC2FFACFD79194FFC62F2B4" authorityName="Reyes, Mead &amp; Van Waerebeek" authorityYear="1991" box="[666,928,3400,3421]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="352" phylum="Chordata" rank="species" species="peruvianus">Mesoplodon peruvianus</taxonomicName>
); 11. Perrin's Beaked Whale (
<taxonomicName id="4CFA4D52FFC2FFACFB39194FFAA0F2B4" authorityName="Gervais" authorityYear="1850" box="[1242,1378,3400,3421]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="genus">Mesoplodon</taxonomicName>
<taxonomicName id="4CFA4D52FFC2FFACFA89194FFA6DF2B4" authorityName="Dalebout, Mead, Baker, Baker &amp; van Helden" authorityYear="2002" box="[1386,1455,3400,3421]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="species" species="perrini">perrini</taxonomicName>
); 12. True's Beaked Whale (
<taxonomicName id="4CFA4D52FFC2FFACF938194FF86AF2B4" authorityName="True" authorityYear="1913" box="[1755,1960,3400,3421]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="species" species="mirus">Mesoplodon mirus</taxonomicName>
); 13. Strap-toothed Whale (
<taxonomicName id="4CFA4D52FFC2FFACF735194FF670F2B4" baseAuthorityName="Gray" baseAuthorityYear="1865" box="[2262,2482,3400,3421]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="species" species="layardii">Mesoplodon layardii</taxonomicName>
); 14. Hectors Beaked Whale (
<taxonomicName id="4CFA4D52FFC2FFACFE2A1968FD93F26D" authorityName="Gervais" authorityYear="1850" box="[457,593,3439,3460]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="5" pageNumber="351" phylum="Chordata" rank="genus">Mesoplodon</taxonomicName>
hector).
</paragraph>
</caption>
<subSubSection id="C3E0655AFFC1FFAFFF20151FFD57FDA4" pageId="6" pageNumber="352" type="conservation">
<paragraph id="8B4536D1FFC1FFAFFF20151FFD57FDA4" blockId="6.[193,1403,280,632]" pageId="6" pageNumber="352">
<emphasis id="B98EEAC3FFC1FFAFFF20151FFDDFFED0" bold="true" box="[195,541,280,313]" pageId="6" pageNumber="352">Status and Conservation.</emphasis>
CITES Appendix II. Classified as Data Deficient on The [UCN Red List. There are no estimates of global population size of Stejnegers Beaked Whale. It may be one of the more common species of
<taxonomicName id="4CFA4D52FFC1FFAFFCB71561FC2AFE6E" authorityName="Gervais" authorityYear="1850" box="[852,1000,358,391]" class="Mammalia" family="Hyperoodontidae" genus="Mesoplodon" kingdom="Animalia" order="Cetacea" pageId="6" pageNumber="352" phylum="Chordata" rank="genus">Mesoplodon</taxonomicName>
in some parts of its distribution, such as around the Aleutian Islands and in the Sea ofJapan. Like other species of beaked whales, Stejnegers Beaked Whale is potentially affected by ingestion of plastic debris, bycatch in driftnet fisheries, and noise pollution. As a cool-water species, it may also be affected by climate change. Nevertheless, nothing is known about the form or extent of these potential impacts.
</paragraph>
</subSubSection>
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<emphasis id="B98EEAC3FFC1FFAFFF20165CFE9BFD9D" bold="true" box="[195,345,603,628]" pageId="6" pageNumber="352">Bibliography.</emphasis>
Loughlin et al. (1982), MacLeod et al. (2006), Mead (1989b), Rice (1998), Walker &amp; Hanson (1999).
</paragraph>
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</treatment>
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