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<mods:title id="AA76F0A780E5ADA7F6AC10AD9E0CF1BE">The Vetigastropoda (Mollusca) of Walters Shoal, with descriptions of two new genera and thirty new species</mods:title>
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Genus 
<taxonomicName id="AAEC4D3E387A0B38FD3DFA5B5496FA67" ID-CoL="7NT7R" authority="McLean, 1992" authorityName="McLean" authorityYear="1992" box="[678,992,1433,1460]" class="Gastropoda" family="Choristellidae" genus="Bichoristes" kingdom="Animalia" order="Seguenziida" pageId="36" pageNumber="37" phylum="Mollusca" rank="genus">
<emphasis id="5F98EAAF387A0B38FD3DFA5B545BFA67" bold="true" box="[678,813,1433,1460]" italics="true" pageId="36" pageNumber="37">Bichoristes</emphasis>
<bibRefCitation id="097D4B4C387A0B38FCAEFA585496FA67" author="McLean J. H." box="[821,992,1434,1460]" pageId="36" pageNumber="37" pagination="273 - 294" refId="ref62017" refString="McLean J. H. 1992. Systematic review of the family Choristellidae (Archaeogastropoda: Lepetellacea) with description of new species. The Veliger 35 (4): 273 - 294. Available from https: // www. biodiversitylibrary. org / page / 42467347 [accessed 10 Feb. 2024]." type="journal article" year="1992">McLean, 1992</bibRefCitation>
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<emphasis id="5F98EAAF387A0B38FF26FA1E562EFA25" bold="true" box="[189,344,1500,1526]" pageId="36" pageNumber="37">
<typeStatus id="B257881F387A0B38FF26FA1E578CFA25" box="[189,250,1500,1526]" pageId="36" pageNumber="37">Type</typeStatus>
species
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</paragraph>
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<taxonomicName id="AAEC4D3E387A0B38FF26F9C9553DF9F5" ID-CoL="LRRW" authority="McLean, 1992" authorityName="McLean" authorityYear="1992" box="[189,587,1547,1574]" class="Gastropoda" family="Choristellidae" genus="Bichoristes" kingdom="Animalia" order="Seguenziida" pageId="36" pageNumber="37" phylum="Mollusca" rank="species" species="wareni">
<emphasis id="5F98EAAF387A0B38FF26F9C956EEF9F6" box="[189,408,1547,1573]" italics="true" pageId="36" pageNumber="37">Bichoristes wareni</emphasis>
<bibRefCitation id="097D4B4C387A0B38FE3BF9CE553DF9F5" author="McLean J. H." box="[416,587,1548,1574]" pageId="36" pageNumber="37" pagination="273 - 294" refId="ref62017" refString="McLean J. H. 1992. Systematic review of the family Choristellidae (Archaeogastropoda: Lepetellacea) with description of new species. The Veliger 35 (4): 273 - 294. Available from https: // www. biodiversitylibrary. org / page / 42467347 [accessed 10 Feb. 2024]." type="journal article" year="1992">McLean, 1992</bibRefCitation>
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(original designation), Recent, 
<collectingRegion id="AF28F85F387A0B38FC24F9C9536AF9F6" box="[959,1052,1547,1573]" country="United Kingdom" name="Norfolk" pageId="36" pageNumber="37">Norfolk</collectingRegion>
Ridge.
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<subSubSection id="25F66536387A0B38FF26F98C5361F8D7" pageId="36" pageNumber="37" type="discussion">
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<heading id="361B81D1387A0B38FF26F98C5659F9BB" bold="true" box="[189,303,1614,1640]" fontSize="11" level="3" pageId="36" pageNumber="37" reason="3">
<emphasis id="5F98EAAF387A0B38FF26F98C5659F9BB" bold="true" box="[189,303,1614,1640]" pageId="36" pageNumber="37">Remarks</emphasis>
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<taxonomicName id="AAEC4D3E387A0B38FF26F9BC5637F94B" authorityName="McLean" authorityYear="1992" box="[189,321,1662,1688]" class="Gastropoda" family="Choristellidae" genus="Bichoristes" kingdom="Animalia" order="Seguenziida" pageId="36" pageNumber="37" phylum="Mollusca" rank="genus">
<emphasis id="5F98EAAF387A0B38FF26F9BC5637F94B" box="[189,321,1662,1688]" italics="true" pageId="36" pageNumber="37">Bichoristes</emphasis>
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is a monotypic genus and is the only choristellid in which the shell is planispiral rather than helically coiled. However, the jaw and radula closely resemble those of other choristellid genera (
<bibRefCitation id="097D4B4C387A0B38FF5DF9045619F933" author="McLean J. H." box="[198,367,1734,1760]" pageId="36" pageNumber="37" pagination="273 - 294" refId="ref62017" refString="McLean J. H. 1992. Systematic review of the family Choristellidae (Archaeogastropoda: Lepetellacea) with description of new species. The Veliger 35 (4): 273 - 294. Available from https: // www. biodiversitylibrary. org / page / 42467347 [accessed 10 Feb. 2024]." type="journal article" year="1992">McLean 1992</bibRefCitation>
) and thus like them, 
<taxonomicName id="AAEC4D3E387A0B38FDF1F90555AAF933" authorityName="McLean" authorityYear="1992" box="[618,732,1735,1760]" class="Gastropoda" family="Choristellidae" genus="Bichoristes" kingdom="Animalia" order="Seguenziida" pageId="36" pageNumber="37" phylum="Mollusca" rank="species" species="wareni">
<emphasis id="5F98EAAF387A0B38FDF1F90555AAF933" box="[618,732,1735,1760]" italics="true" pageId="36" pageNumber="37">B. wareni</emphasis>
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is assumed to live within spent elasmobranch egg cases and to feed on decomposing bacteria growing on the inner egg case wall.
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