225 lines
27 KiB
XML
225 lines
27 KiB
XML
<document id="5D70E49270F463F8D251D4AAC5A1F0D3" ID-DOI="10.11646/zootaxa.4090.1.1" ID-GBIF-Dataset="e6b35f5a-435e-4473-b29e-1e4d842f84b0" ID-ISSN="1175-5326" ID-Zenodo-Dep="263299" ID-ZooBank="203BAC25-B542-48FE-B5AD-EBA8C0285833" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1457964633549" checkinUser="plazi" docAuthor="Fallon, Phillip J." docDate="2016" docId="039F87C4FB57FE9CCBAFBE0FFC22FA15" docLanguage="en" docName="15612-5136-1-PB.pdf.imf" docOrigin="Zootaxa 4090 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Splendrillia stegeri Usticke 1959, new combination" docType="treatment" docVersion="12" lastPageNumber="309" masterDocId="FFA6FFBCFA65FFA8CB38B91BFFE8FFAA" masterDocTitle="Taxonomic review of tropical western Atlantic shallow water Drilliidae (Mollusca: Gastropoda: Conoidea) including descriptions of 100 new species" masterLastPageNumber="363" masterPageNumber="1" pageNumber="307" updateTime="1698184378282" updateUser="plazi">
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<mods:mods id="F74331AE52D45C7ECA0FAB5829DB2875" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="89CC1628EAE459F9547D6A2352A8451D">
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<mods:title id="0BC9AD90937370E9C775BA072BF04BE8">Taxonomic review of tropical western Atlantic shallow water Drilliidae (Mollusca: Gastropoda: Conoidea) including descriptions of 100 new species</mods:title>
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</mods:titleInfo>
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<mods:name id="475638A9CDC0E77DBACD9CF2AB81F465" type="personal">
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<mods:role id="575E88475849FB7733379BCF9D64A3BD">
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<mods:roleTerm id="9953D62B1D2582171427B7B0C67BCFE2">Author</mods:roleTerm>
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<mods:namePart id="0EF556377BC6C48D961799728B59935E">Fallon, Phillip J.</mods:namePart>
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<mods:typeOfResource id="291D1E45D09209BD0FC8D3685C7DECA2">text</mods:typeOfResource>
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<mods:title id="3C3C4F54993161F178518F0ECCC31013">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="21A748767E0F5CE9A4A2BBD64B43B55F">
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<mods:date id="2CC3869FA35253025A9408C6ED04D65A">2016</mods:date>
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<mods:detail id="8A9D43DD7032A977AA02C640ADCAE265" type="volume">
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<mods:number id="FFE8792B6B099C09F610B2ED7DD3A560">4090</mods:number>
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</mods:detail>
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<mods:detail id="C5111207C17E0A7289D8BC29990308F3" type="issue">
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<mods:number id="186040070BB3132A53C7ABCF18335094">1</mods:number>
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<mods:classification id="0FFF4DA84BCC2358596E664F4EAECAFD">journal article</mods:classification>
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<mods:identifier id="4A6C641D855C201204C3E24D1B9EB857" type="DOI">10.11646/zootaxa.4090.1.1</mods:identifier>
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<mods:identifier id="657DEA4BE41315BA80FCA2CA6A307E65" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="88C59F33C67C114876D90BBEB3F6CC92" type="Zenodo-Dep">263299</mods:identifier>
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<treatment id="039F87C4FB57FE9CCBAFBE0FFC22FA15" ID-DOI="http://doi.org/10.5281/zenodo.6076622" ID-GBIF-Taxon="117911533" ID-Zenodo-Dep="6076622" LSID="urn:lsid:plazi:treatment:039F87C4FB57FE9CCBAFBE0FFC22FA15" httpUri="http://treatment.plazi.org/id/039F87C4FB57FE9CCBAFBE0FFC22FA15" lastPageId="308" lastPageNumber="309" pageId="306" pageNumber="307">
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<subSubSection id="C32C6559FB57FE9ACBAFBE0FFD60F879" pageId="306" pageNumber="307" type="nomenclature">
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<paragraph id="8B8936D2FB57FE9ACBAFBE0FFCC9F885" blockId="306.[151,801,1812,1872]" box="[151,801,1812,1839]" pageId="306" pageNumber="307">
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<heading id="D0C181BEFB57FE9ACBAFBE0FFCC9F885" bold="true" box="[151,801,1812,1839]" fontSize="11" level="1" pageId="306" pageNumber="307" reason="1">
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<emphasis id="B942EAC0FB57FE9ACBAFBE0FFCC9F885" bold="true" box="[151,801,1812,1839]" pageId="306" pageNumber="307">
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<taxonomicName id="4C364D51FB57FE9ACBAFBE0FFDD6F885" ID-CoL="4Z9J9" authority="Usticke, 1959" authorityName="Usticke" authorityYear="1959" box="[151,574,1812,1839]" class="Gastropoda" family="Drilliidae" genus="Splendrillia" kingdom="Animalia" order="Neogastropoda" pageId="306" pageNumber="307" phylum="Mollusca" rank="species" species="stegeri" status="comb. nov.">
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<emphasis id="B942EAC0FB57FE9ACBAFBE0FFE94F884" bold="true" box="[151,380,1812,1838]" italics="true" pageId="306" pageNumber="307">Splendrillia stegeri</emphasis>
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(Usticke, 1959)
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</taxonomicName>
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,
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<taxonomicNameLabel id="A27157BBFB57FE9AC973BE0EFCC9F885" box="[587,801,1813,1839]" pageId="306" pageNumber="307">new combination</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8B8936D2FB57FE9ACBAFBE2CFEFBF8FA" blockId="306.[151,801,1812,1872]" box="[151,275,1847,1872]" pageId="306" pageNumber="307">(Plate 158)</paragraph>
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<paragraph id="8B8936D2FB57FE9ACBAFBE64FD60F879" blockId="306.[151,1436,1919,2034]" pageId="306" pageNumber="307">
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<taxonomicName id="4C364D51FB57FE9ACBAFBE64FDF9F83F" authority="Usticke, 1959" authorityName="Usticke" authorityYear="1959" box="[151,529,1919,1941]" class="Gastropoda" family="Mangeliidae" genus="Brachycythara" kingdom="Animalia" order="Neogastropoda" pageId="306" pageNumber="307" phylum="Mollusca" rank="species" species="stegeri">
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<emphasis id="B942EAC0FB57FE9ACBAFBE64FE91F83F" box="[151,377,1919,1941]" italics="true" pageId="306" pageNumber="307">Brachycythara stegeri</emphasis>
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Usticke, 1959
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</taxonomicName>
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: vi, 83, pl. 4, fig. 14. Nowell-Usticke (1969: 28, pl. 6, fig. 1172); Nowell-Usticke (1971: 25, not pl. 6, fig. 1172); Faber (1988: 89–90, 96 [uncertainty of taxonomic status]); Boyko & Cordeiro (2001: 23 [changed spelling of genus to
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<emphasis id="B942EAC0FB57FE9ACAACBEA6FD99F879" box="[404,625,1981,2003]" italics="true" pageId="306" pageNumber="307">
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Brachycithara
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<taxonomicName id="4C364D51FB57FE9AC914BEA5FD99F879" box="[556,625,1982,2003]" class="Gastropoda" family="Mangeliidae" genus="Brachycythara" kingdom="Animalia" order="Neogastropoda" pageId="306" pageNumber="307" phylum="Mollusca" rank="species" species="stegeri">stegeri</taxonomicName>
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</emphasis>
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]).
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</paragraph>
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</subSubSection>
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<paragraph id="8B8936D2FB57FE9ACBAFBEC7FA82F858" blockId="306.[151,1436,1919,2034]" box="[151,1386,2012,2034]" pageId="306" pageNumber="307">
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<taxonomicName id="4C364D51FB57FE9ACBAFBEC7FE07F858" authority="Usticke, 1959" authorityName="Usticke" authorityYear="1959" box="[151,495,2012,2034]" class="Gastropoda" family="Mangeliidae" genus="Kurtziella" kingdom="Animalia" order="Neogastropoda" pageId="306" pageNumber="307" phylum="Mollusca" rank="species" species="stegeri">
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<emphasis id="B942EAC0FB57FE9ACBAFBEC7FEAFF858" box="[151,327,2012,2034]" italics="true" pageId="306" pageNumber="307">Kurtziella stegeri</emphasis>
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(Usticke, 1959)
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</taxonomicName>
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: Williams (2005: species 5653 [as
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<emphasis id="B942EAC0FB57FE9AC877BEC6FC35F858" box="[847,989,2012,2034]" italics="true" pageId="306" pageNumber="307">nomen nudem</emphasis>
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]); Rosenberg (2009 [=dubious name]).
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</paragraph>
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<caption id="DF49665AFB56FE9BCBAFBFCEFEC4F8ED" httpUri="https://zenodo.org/record/263458/files/figure.png" pageId="307" pageNumber="308" targetBox="[151,1436,195,1722]" targetPageId="307">
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<paragraph id="8B8936D2FB56FE9BCBAFBFCEFEC4F8ED" blockId="307.[151,1436,1749,1863]" pageId="307" pageNumber="308">
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<figureCitation id="130D2A57FB56FE9BCBAFBFCEFF3BF941" box="[151,211,1749,1771]" captionStart="430289); Fig. 1: ventral, lateral & dorsal views; Fig. 2: apical view, V = varix, L = edge of outer lip; Figs. 3 – 4: paratypes (USNM 430038); Fig. 3: ventral and enlarged view protoconch (not to scale) of incompletely developed specimen; Fig. 4: ventral view of decollate specimen. Figs. 5 – 17: ventral views of additional paratypes and specimens from other localities. Figs. 5, 7 – 11: Grand Cul-de-Sac Marin, Guadeloupe. Fig. 5: MNHN IM- 2012 - 28036; Fig. 7: MNHN IM- 2012 - 28047; Fig. 8: MNHN IM- 2012 - 28045; Fig. 9: MNHN IM- 2012 - 28064; Fig. 10: MNHN IM- 2012 - 28045; Fig. 11: MNHN IM- 2012 - 28046; Fig. 6: Anse Tarare, Guadeloupe (MNHN IM- 2013 - 9092); Fig. 12: off Jamestown, Barbados (USNM 900122); Fig. 13: W of Sandy Lane Bay, St. James, Barbados (UF 470278); Figs. 14 – 15: paratypes, off the N coast of Puerto Rico (USNM 429205 a & USNM 429205); Figs. 16 – 18: Minerva seamount, S Bahia, Brazil (P. Stahlschmidt coll.); Fig. 18: apical view of specimen in Fig. 17, V = varix, L = edge of outer lip." captionStartId="138.[151,231,1754,1776]" captionTargetBox="[194,1384,195,1727]" captionTargetId="figure@138.[194,1384,195,1727]" captionTargetPageId="138" captionText="430289); Fig. 1: ventral, lateral & dorsal views; Fig. 2: apical view, V = varix, L = edge of outer lip; Figs. 3 – 4: paratypes (USNM 430038); Fig. 3: ventral and enlarged view protoconch (not to scale) of incompletely developed specimen; Fig. 4: ventral view of decollate specimen. Figs. 5 – 17: ventral views of additional paratypes and specimens from other localities. Figs. 5, 7 – 11: Grand Cul-de-Sac Marin, Guadeloupe. Fig. 5: MNHN IM- 2012 - 28036; Fig. 7: MNHN IM- 2012 - 28047; Fig. 8: MNHN IM- 2012 - 28045; Fig. 9: MNHN IM- 2012 - 28064; Fig. 10: MNHN IM- 2012 - 28045; Fig. 11: MNHN IM- 2012 - 28046; Fig. 6: Anse Tarare, Guadeloupe (MNHN IM- 2013 - 9092); Fig. 12: off Jamestown, Barbados (USNM 900122); Fig. 13: W of Sandy Lane Bay, St. James, Barbados (UF 470278); Figs. 14 – 15: paratypes, off the N coast of Puerto Rico (USNM 429205 a & USNM 429205); Figs. 16 – 18: Minerva seamount, S Bahia, Brazil (P. Stahlschmidt coll.); Fig. 18: apical view of specimen in Fig. 17, V = varix, L = edge of outer lip." httpUri="https://zenodo.org/record/263361/files/figure.png" pageId="307" pageNumber="308">Fig. 1</figureCitation>
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: ventral, lateral & dorsal views;
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<figureCitation id="130D2A57FB56FE9BC926BFCEFDB4F941" box="[542,604,1749,1771]" captionStart="Fig. 2" captionStartId="210.[151,188,1695,1717]" captionTargetBox="[305,1256,193,1592]" captionTargetId="figure@210.[305,1257,193,1592]" captionText="Fig. 2. Holotype, 18.2 x 7.3 mm, F. alba, new species (USNM 1291342). Fig. 3. Paratype, 17.3 x 7.6 mm, F. chaaci (Espinosa & Rolán, 1995) (MNHN 2857). Fig. 4. Holotype, 15.6 x 6.0 mm, F. crocea, new species (UF 155640). Fig. 5. Holotype, 15.3 x 5.4 mm, F. contracta, new species (UF 170316). Fig. 6. Holotype, 13.2 x 5.1 mm, F. petiti Tippett, 1995 (USNM 880073). Fig. 7. Holotype, 27.5 x 11.0 mm, F. phasma (Schwengel, 1940) (ANSP 176453). Fig. 8. Neotype, 25.5 x 9.5 mm, F. fucata (Reeve, 1845) (USNM 1291346). Fig. 9. Holotype, 25.0 x 7.4 mm, F. elongata, new species (UF 155626). Fig. 10. Holotype, 21.2 x 7.4 mm, F. tippetti, new species (UF 155639). Fig. 11. Holotype, 16.8 x 7.4 mm, F. marmarina (Watson, 1881) (NHMUK 1887.2.9.103). Fig. 12. Lectotype, 17.8 x 5.8 mm, F. pagodula (Dall, 1889) (USNM 87471)." pageId="307" pageNumber="308">Fig. 2</figureCitation>
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: apical view, V = varix, L = edge of outer lip. Figs. 3–4: non-types, Bahia Salinas, Cabo Rojo,
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<collectingCountry id="F3217642FB56FE9BCA37BFEEFE6FF8A0" box="[271,391,1780,1802]" name="Puerto Rico" pageId="307" pageNumber="308">Puerto Rico</collectingCountry>
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(Fig. 3) and Jobos, "The Shacks",
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<collectingCountry id="F3217642FB56FE9BC9DBBFEEFCB3F8A0" box="[739,859,1780,1802]" name="Puerto Rico" pageId="307" pageNumber="308">Puerto Rico</collectingCountry>
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(Fig. 4), both from the collection of P. Williams. Figs. 5– 6: 260 & 1,000x shell surface SEM images, respectively, of the specimen depicted in Fig. 3. Images courtesy of Paul Callomon and the ANSP.
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</paragraph>
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</caption>
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<subSubSection id="C32C6559FB56FE9CCBAFBE74FD2AFE5E" lastPageId="308" lastPageNumber="309" pageId="307" pageNumber="308" type="materials_examined">
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<paragraph id="8B8936D2FB56FE9CCBAFBE74FDEBFF52" blockId="307.[151,1436,1902,2036]" lastBlockId="308.[151,1437,151,1472]" lastPageId="308" lastPageNumber="309" pageId="307" pageNumber="308">
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<emphasis id="B942EAC0FB56FE9BCBAFBE74FEACF82D" bold="true" box="[151,324,1902,1927]" pageId="307" pageNumber="308">
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<typeStatus id="548D8870FB56FE9BCBAFBE74FF3AF82C" box="[151,210,1903,1926]" pageId="307" pageNumber="308">Type</typeStatus>
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material.
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</emphasis>
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Nowell-Usticke (1959: vi, 83, pl. 4: fig. 14) designates the specimen depicted in fig. 14 as
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<typeStatus id="548D8870FB56FE9BCE02BE75FA74F82D" box="[1338,1436,1902,1927]" pageId="307" pageNumber="308" type="holotype">holotype</typeStatus>
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(page vi), which is the specimen in AMNH 195466 according to Boyko & Cordeiro (2001: 23). The specimen measures 4.4 x
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<quantity id="4CCE9B37FB56FE9BCA72BEACFE4DF865" box="[330,421,1975,1999]" metricMagnitude="-3" metricUnit="m" metricValue="1.9" pageId="307" pageNumber="308" unit="mm" value="1.9">1.9 mm</quantity>
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. The existence of
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<typeStatus id="548D8870FB56FE9BC94FBEA3FD0AF865" box="[631,738,1976,1999]" pageId="307" pageNumber="308" type="paratype">paratypes</typeStatus>
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is inferred from his given size range (
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<quantity id="4CCE9B37FB56FE9BCFA3BEADFAFCF865" box="[1179,1300,1974,1999]" metricMagnitude="-3" metricUnit="m" metricValue="5.75" metricValueMax="6.5" metricValueMin="5.0" pageId="307" pageNumber="308" unit="mm" value="5.75" valueMax="6.5" valueMin="5.0">5–6.5 mm</quantity>
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). Two other specimens: one in AMNH 195466a, and a 4.5 x
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<quantity id="4CCE9B37FB56FE9BC9F8BEC0FCF0F859" box="[704,792,2011,2035]" metricMagnitude="-3" metricUnit="m" metricValue="2.1" pageId="307" pageNumber="308" unit="mm" value="2.1">2.1 mm</quantity>
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specimen in AMNH 294367, both from Altona Bay, are assumed to be
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<typeStatus id="548D8870FB51FE9CCA05B983FE44FF05" box="[317,428,152,175]" pageId="308" pageNumber="309" type="paratype">paratypes</typeStatus>
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. The former could not be located during a visit to the AMNH in
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<date id="FF881012FB51FE9CCFBAB98CFADFFF1A" box="[1154,1335,151,176]" pageId="308" pageNumber="309" value="2014-11">November 2014</date>
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and thus its length not taken. The latter has been damaged by Byrne’s disease and its sculptural detail obscured, although it appeared to be the same species.
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</paragraph>
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<paragraph id="8B8936D2FB51FE9CCBFFB81EFCE5FEB6" blockId="308.[151,1437,151,1472]" box="[199,781,260,285]" pageId="308" pageNumber="309">
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<emphasis id="B942EAC0FB51FE9CCBFFB81EFE8DFEB7" bold="true" box="[199,357,260,285]" pageId="308" pageNumber="309">
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<typeStatus id="548D8870FB51FE9CCBFFB81EFEEAFEB6" box="[199,258,261,284]" pageId="308" pageNumber="309">Type</typeStatus>
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locality.
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</emphasis>
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Altona Bay, St. Croix,
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<collectingCountry id="F3217642FB51FE9CC953B81FFD75FEB6" box="[619,669,260,284]" name="United States of America" pageId="308" pageNumber="309">U.S.</collectingCountry>
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Virgin Is.
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</paragraph>
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<paragraph id="8B8936D2FB51FE9CCBFFB83CFE4DFE22" blockId="308.[151,1437,151,1472]" pageId="308" pageNumber="309">
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<emphasis id="B942EAC0FB51FE9CCBFFB83CFDE9FEEA" bold="true" box="[199,513,295,320]" pageId="308" pageNumber="309">Other material examined.</emphasis>
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Three additional specimens were examined: 1 spec., 4.7 x 2.0 mm, Cabo Rojo, Bahia Salinas,
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<collectingCountry id="F3217642FB51FE9CCA06B856FE2CFECF" box="[318,452,332,357]" name="Puerto Rico" pageId="308" pageNumber="309">Puerto Rico</collectingCountry>
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(P. Williams coll.); 2 spec., 4.7 x 2.0 & 4.5 x
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<quantity id="4CCE9B37FB51FE9CC8FFB857FBF7FECE" box="[967,1055,332,356]" metricMagnitude="-3" metricUnit="m" metricValue="1.9" pageId="308" pageNumber="309" unit="mm" value="1.9">1.9 mm</quantity>
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, "The Shacks", Jobos Bay,
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<collectingCountry id="F3217642FB51FE9CCE6BB856FF24FE22" name="Puerto Rico" pageId="308" pageNumber="309">Puerto Rico</collectingCountry>
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(P. Williams coll.).
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</paragraph>
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<paragraph id="8B8936D2FB51FE9CCBFFB88EFD2AFE5E" blockId="308.[151,1437,151,1472]" pageId="308" pageNumber="309">
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<emphasis id="B942EAC0FB51FE9CCBFFB88EFE5FFE07" bold="true" box="[199,439,404,429]" pageId="308" pageNumber="309">Range and habitat.</emphasis>
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<collectingCountry id="F3217642FB51FE9CCAFBB88FFE1DFE06" box="[451,501,404,428]" name="United States of America" pageId="308" pageNumber="309">U.S.</collectingCountry>
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Virgin Is. (St. Croix);
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<collectingCountry id="F3217642FB51FE9CC828B88EFC76FE07" box="[784,926,404,429]" name="Puerto Rico" pageId="308" pageNumber="309">Puerto Rico</collectingCountry>
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. Also St. Thomas (Water I.) and St. Barts according to Nowell-Usticke (1969; 1971) but not confirmed here. The depth was not stated for
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<typeStatus id="548D8870FB51FE9CCFDFB8A3FAFFFE65" box="[1255,1303,440,463]" pageId="308" pageNumber="309">type</typeStatus>
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specimens. Other specimens were collected in shallow water.
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</paragraph>
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</subSubSection>
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||
<subSubSection id="C32C6559FB51FE9CCBFFB8E4FAA4FBF2" pageId="308" pageNumber="309" type="description">
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||
<paragraph id="8B8936D2FB51FE9CCBFFB8E4FAA4FBF2" blockId="308.[151,1437,151,1472]" pageId="308" pageNumber="309">
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<emphasis id="B942EAC0FB51FE9CCBFFB8E4FE72FDB2" bold="true" box="[199,410,511,536]" pageId="308" pageNumber="309">
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||
Description.
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<emphasis id="B942EAC0FB51FE9CCA67B8E4FE72FDB2" bold="true" box="[351,410,511,536]" italics="true" pageId="308" pageNumber="309">Shell</emphasis>
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</emphasis>
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very small (original description was “average 5.0 mm, maximum
|
||
<quantity id="4CCE9B37FB51FE9CCFBABB1BFB34FDB2" box="[1154,1244,511,536]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="308" pageNumber="309" unit="mm" value="6.5">6.5 mm</quantity>
|
||
”, but none of the specimens examined here exceeded
|
||
<quantity id="4CCE9B37FB51FE9CC90EBB3FFD79FD97" box="[566,657,548,573]" metricMagnitude="-3" metricUnit="m" metricValue="4.7" pageId="308" pageNumber="309" unit="mm" value="4.7">4.7 mm</quantity>
|
||
), fusiform, truncated anteriorly; glossy, whorls convex with angular shoulders; spire shorter than body whorl.
|
||
<typeStatus id="548D8870FB51FE9CC9A9BB5CFD11FDCA" box="[657,761,583,608]" pageId="308" pageNumber="309" type="holotype">Holotype</typeStatus>
|
||
in AMNH 195466 of 6 whorls, 4.4 x
|
||
<quantity id="4CCE9B37FB51FE9CCFE5BB53FAD2FDF5" box="[1245,1338,584,608]" metricMagnitude="-3" metricUnit="m" metricValue="1.9" pageId="308" pageNumber="309" unit="mm" value="1.9">1.9 mm</quantity>
|
||
overall.
|
||
<emphasis id="B942EAC0FB51FE9CCBAFBB77FEF5FD2F" bold="true" box="[151,285,620,645]" italics="true" pageId="308" pageNumber="309">Protoconch</emphasis>
|
||
of 2 round whorls, rapidly expanding from an erect protoconch tip, the second somewhat squat; glossy and opaque white.
|
||
<emphasis id="B942EAC0FB51FE9CCA55BB94FDC8FD02" bold="true" box="[365,544,655,680]" italics="true" pageId="308" pageNumber="309">Axial sculpture</emphasis>
|
||
of short, regularly spaced, axial ribs. Ribs fade shortly below whorl periphery, and terminate abruptly at shoulder sulcus. Ribs number 13–17 on penultimate whorl, and 12 on body whorl to varix.
|
||
<emphasis id="B942EAC0FB51FE9CCBD9BBCCFEF5FD5A" bold="true" box="[225,285,727,752]" italics="true" pageId="308" pageNumber="309">Varix</emphasis>
|
||
broad, about ⅓-turn from the edge of the outer lip.
|
||
<emphasis id="B942EAC0FB51FE9CC843BBCCFBDFFD5A" bold="true" box="[891,1079,727,752]" italics="true" pageId="308" pageNumber="309">Spiral sculpture</emphasis>
|
||
minimal; spiral ridges faint on shell base but more pronounced on anterior fasciole. Spiral microsculpture of very fine, crowded grooves that cover the shell but are most pronounced in the sulcus. In SEM images the fine crowded spiral grooves on the shell surface appear as crowded rows of closely spaced and contiguous punctae (Pl. 158 Figs. 5–6).
|
||
<emphasis id="B942EAC0FB51FE9CCFECBA5FFACAFCF7" bold="true" box="[1236,1314,836,861]" italics="true" pageId="308" pageNumber="309">Sulcus</emphasis>
|
||
broad and flat, without axials.
|
||
<emphasis id="B942EAC0FB51FE9CCA44BA7CFE0CFC2A" bold="true" box="[380,484,871,896]" italics="true" pageId="308" pageNumber="309">Outer lip</emphasis>
|
||
thin, edge forms a low arch from the sinus to the anterior canal, with only a slight indentation for a stromboid notch. Outer lip joins the suture behind the parietal lobe.
|
||
<emphasis id="B942EAC0FB51FE9CCF73BA97FB2EFC0F" bold="true" box="[1099,1222,908,933]" italics="true" pageId="308" pageNumber="309">Anal sinus</emphasis>
|
||
wide, anterior side divergent, congruent with the arc of the outer lip, a weak callus present on parietal side.
|
||
<emphasis id="B942EAC0FB51FE9CCFD5BAABFAB3FC62" bold="true" box="[1261,1371,943,968]" italics="true" pageId="308" pageNumber="309">Inner lip</emphasis>
|
||
thin, unemarginate, a slight lip anteriorly on canal, a weak callus posteriorly in front of the junction of the outer lip.
|
||
<emphasis id="B942EAC0FB51FE9CCBAFBAECFEA8FBBA" bold="true" box="[151,320,1015,1040]" italics="true" pageId="308" pageNumber="309">Anterior canal</emphasis>
|
||
very short, indistinct, open, and straight, unnotched.
|
||
<emphasis id="B942EAC0FB51FE9CC8AFBAECFC30FBBA" bold="true" box="[919,984,1015,1040]" italics="true" pageId="308" pageNumber="309">Color</emphasis>
|
||
all white, translucent except for opaque ribs, or white with a pair of spiral lines just below whorl periphery such that the posterior-most line shows above the suture line of each whorl. Space between lines and sulcus a dirty white; chestnut patch present on varix.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C32C6559FB51FE9CCBFFBD7EFC22FA15" pageId="308" pageNumber="309" type="discussion">
|
||
<paragraph id="8B8936D2FB51FE9CCBFFBD7EFC22FA15" blockId="308.[151,1437,151,1472]" pageId="308" pageNumber="309">
|
||
<emphasis id="B942EAC0FB51FE9CCBFFBD7EFE0FFBD7" bold="true" box="[199,487,1124,1149]" pageId="308" pageNumber="309">
|
||
Remarks.
|
||
<emphasis id="B942EAC0FB51FE9CCA7ABD7FFE0FFBD7" bold="true" box="[322,487,1124,1149]" italics="true" pageId="308" pageNumber="309">Nomenclature</emphasis>
|
||
</emphasis>
|
||
. This species was erroneously placed in
|
||
<taxonomicName id="4C364D51FB51FE9CC889BD7FFBBFFBD7" box="[945,1111,1124,1149]" class="Gastropoda" family="Mangeliidae" genus="Brachycythara" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B942EAC0FB51FE9CC889BD7FFBBFFBD7" box="[945,1111,1124,1149]" italics="true" pageId="308" pageNumber="309">Brachycythara</emphasis>
|
||
</taxonomicName>
|
||
, a genus in
|
||
<taxonomicName id="4C364D51FB51FE9CCFE6BD7FFA85FBD7" box="[1246,1389,1124,1149]" class="Gastropoda" family="Mangeliidae" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="family">Mangeliidae</taxonomicName>
|
||
, but is instead more properly placed in
|
||
<taxonomicName id="4C364D51FB51FE9CC914BD9CFD72FB0A" box="[556,666,1159,1184]" class="Gastropoda" family="Drilliidae" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="family">Drilliidae</taxonomicName>
|
||
, having a smooth, glossy, fusiform shell with an approximately 2- whorl protoconch; teleoconch sculpture of axial ribs, with a parietal lobe and anal sinus located adjacent to suture on the whorl shoulder, and a varix behind the outer lip.
|
||
<emphasis id="B942EAC0FB51FE9CC83BBDCBFC91FB4D" bold="true" box="[771,889,1232,1255]" italics="true" pageId="308" pageNumber="309">Taxonomy</emphasis>
|
||
.
|
||
<taxonomicName id="4C364D51FB51FE9CC8BFBDD4FBB6FB4D" box="[903,1118,1231,1256]" class="Gastropoda" family="Drilliidae" genus="Splendrillia" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="species" species="stegeri">
|
||
<emphasis id="B942EAC0FB51FE9CC8BFBDD4FBB6FB4D" box="[903,1118,1231,1256]" italics="true" pageId="308" pageNumber="309">Splendrillia stegeri</emphasis>
|
||
</taxonomicName>
|
||
has all the characteristics of
|
||
<taxonomicName id="4C364D51FB51FE9CCBAFBDEFFEF3FAA7" box="[151,283,1268,1293]" class="Gastropoda" family="Drilliidae" genus="Splendrillia" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B942EAC0FB51FE9CCBAFBDEFFEF3FAA7" box="[151,283,1268,1293]" italics="true" pageId="308" pageNumber="309">Splendrillia</emphasis>
|
||
</taxonomicName>
|
||
: axial ribs that terminate at the sulcus, oblique ribs that fade just below the whorl periphery, and outer lip that joins the suture behind the sulcus.
|
||
<emphasis id="B942EAC0FB51FE9CC94BBC0CFD19FA9A" bold="true" box="[627,753,1303,1328]" italics="true" pageId="308" pageNumber="309">Variability.</emphasis>
|
||
The average total length of five measured specimens is
|
||
<quantity id="4CCE9B37FB51FE9CCE53BC03FF2BFAFE" metricMagnitude="-3" metricUnit="m" metricValue="4.56" pageId="308" pageNumber="309" unit="mm" value="4.56">4.56 mm</quantity>
|
||
(
|
||
<quantity id="4CCE9B37FB51FE9CCBE9BC27FEB5FAFF" box="[209,349,1340,1365]" metricMagnitude="-3" metricUnit="m" metricValue="4.55" metricValueMax="4.7" metricValueMin="4.4" pageId="308" pageNumber="309" unit="mm" value="4.55" valueMax="4.7" valueMin="4.4">4.4–4.7 mm</quantity>
|
||
), and their average W/L is 0.434.
|
||
<emphasis id="B942EAC0FB51FE9CC9E2BC27FBB4FAFE" box="[730,1116,1340,1365]" italics="true" pageId="308" pageNumber="309">
|
||
<emphasis id="B942EAC0FB51FE9CC9E2BC27FC96FAFF" bold="true" box="[730,894,1340,1365]" italics="true" pageId="308" pageNumber="309">Identification.</emphasis>
|
||
<taxonomicName id="4C364D51FB51FE9CC8BCBC27FBB4FAFE" box="[900,1116,1340,1365]" class="Gastropoda" family="Drilliidae" genus="Splendrillia" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="species" species="stegeri">Splendrillia stegeri</taxonomicName>
|
||
</emphasis>
|
||
is unique among its congers for its small size. It most closely resembles
|
||
<taxonomicName id="4C364D51FB51FE9CC9B9BC7BFC47FAD2" authority="Reeve, 1845" authorityName="Reeve" authorityYear="1845" box="[641,943,1375,1400]" class="Gastropoda" family="Drilliidae" genus="Splendrillia" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="species" species="coccinata">
|
||
<emphasis id="B942EAC0FB51FE9CC9B9BC7BFCE2FADD" box="[641,778,1376,1400]" italics="true" pageId="308" pageNumber="309">S. coccinata</emphasis>
|
||
(Reeve, 1845)
|
||
</taxonomicName>
|
||
from which it differs in being smaller (4.56 versus
|
||
<quantity id="4CCE9B37FB51FE9CCBD2BC9FFEBBFA36" box="[234,339,1412,1436]" metricMagnitude="-3" metricUnit="m" metricValue="7.88" pageId="308" pageNumber="309" unit="mm" value="7.88">7.88 mm</quantity>
|
||
average total length), in possessing ribs that are less oblique, and in possessing more whorl rounded shoulders. It has brown spiral lines not observed in
|
||
<taxonomicName id="4C364D51FB51FE9CC803BCB3FC2BFA15" box="[827,963,1448,1472]" class="Gastropoda" family="Drilliidae" genus="Splendrillia" kingdom="Animalia" order="Neogastropoda" pageId="308" pageNumber="309" phylum="Mollusca" rank="species" species="coccinata">
|
||
<emphasis id="B942EAC0FB51FE9CC803BCB3FC2BFA15" box="[827,963,1448,1472]" italics="true" pageId="308" pageNumber="309">S. coccinata</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |