<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Heather L. Walsh</dc:contributor>
  <dc:contributor>Christine Densmore</dc:contributor>
  <dc:contributor>Triet Truong</dc:contributor>
  <dc:contributor>Stephen Bullard</dc:contributor>
  <dc:creator>Steven Ksepka</dc:creator>
  <dc:date>2025</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;We herein describe 2 new species of&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya&lt;/i&gt;&lt;span&gt;&amp;nbsp;Thélohan, 1892 (Bivalvulida: Myxobolidae),&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya auburnensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;Ksepka and Bullard n. sp. and&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya chesapeakensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;Ksepka, Walsh, and Bullard n. sp., infecting the inter-lamellar epithelium of cultured blue catfish (&lt;/span&gt;&lt;i&gt;Ictalurus furcatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;[Valenciennes, 1840] [Siluriformes: Ictaluridae]) from Saugahatchee Creek (Tallapoosa River; Auburn, Alabama) and the inter-lamellar epithelium of invasive blue catfish captured in Chesapeake Bay tributaries, respectively.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya auburnensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;resembles&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya mississippiensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;Rosser, Griffin, Quiniou, Khoo, Greenway, Wise, and Pote, 2015&lt;span&gt;, and&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya sutherlandi&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;Griffin, Pote, Wise, Greenway, Mauel, and Camus, 2008&lt;span&gt;, which both infect channel catfish (&lt;/span&gt;&lt;i&gt;Ictalurus punctatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;[Rafinesque, 1818] [Siluriformes: Ictaluridae]) in Mississippi, but differs from these species by having more polar tubule coils (10–12 vs. 8–9 and 6, respectively).&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya chesapeakensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;resembles&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya longicauda&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;Minchew, 1977&lt;span&gt;, which infects channel catfish in Mississippi, but differs from this species by having shorter polar capsules (6.0–7.0 vs. 7.0–9.0). A phylogenetic analysis of the small subunit (SSU) rDNA recovered ictalurid-infecting&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya&lt;/i&gt;&lt;span&gt;&amp;nbsp;spp. as monophyletic, with&amp;nbsp;&lt;/span&gt;&lt;i&gt;H. auburnensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;sister to a clade of&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya&lt;/i&gt;&lt;span&gt;&amp;nbsp;spp. that, except for&amp;nbsp;&lt;/span&gt;&lt;i&gt;H. chesapeakensis&lt;/i&gt;&lt;span&gt;, infect the gill or adipose fin of channel catfish.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya chesapeakensis&lt;/i&gt;&lt;span&gt;&amp;nbsp;was recovered sister to&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya ictaluri&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;Pote, Hanson, and Shivaji, 2000&lt;span&gt;. Histological sections of infected gill filaments revealed that the plasmodia of both new species developed within the inter-lamellar epithelium. The new species comprise the second and third species of&amp;nbsp;&lt;/span&gt;&lt;i&gt;Henneguya&lt;/i&gt;&lt;span&gt;&amp;nbsp;reported from blue catfish.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1645/24-141</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>BioOne</dc:publisher>
  <dc:title>Two new species of Henneguya Thélohan, 1892 (Cnidaria: Bivalvulida: Myxobolidae) infecting gill of blue catfish, Ictalurus furcatus (Rafinesque) (Siluriformes: Ictaluridae) from the Tallapoosa River and Chesapeake Bay tributaries</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>