A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA

Between March and August 2024, three species of <i>Fundulus</i> topminnows, including two northern studfish, <i>Fundulus catenatus</i>, six blackspotted topminnows, <i>Fundulus olivaceus</i>, and eleven blackstriped topminnows, <i>Fundulus notatus</i>,...

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Main Authors: Chris T. McAllister, Eric M. Leis, Donald G. Cloutman, Alvin C. Camus, Thomas J. Fayton, Logan R. S. Robison, George Burrows, Michael R. Rodriguez, Henry W. Robison
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Diversity
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Online Access:https://www.mdpi.com/1424-2818/17/3/192
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author Chris T. McAllister
Eric M. Leis
Donald G. Cloutman
Alvin C. Camus
Thomas J. Fayton
Logan R. S. Robison
George Burrows
Michael R. Rodriguez
Henry W. Robison
author_facet Chris T. McAllister
Eric M. Leis
Donald G. Cloutman
Alvin C. Camus
Thomas J. Fayton
Logan R. S. Robison
George Burrows
Michael R. Rodriguez
Henry W. Robison
author_sort Chris T. McAllister
collection DOAJ
description Between March and August 2024, three species of <i>Fundulus</i> topminnows, including two northern studfish, <i>Fundulus catenatus</i>, six blackspotted topminnows, <i>Fundulus olivaceus</i>, and eleven blackstriped topminnows, <i>Fundulus notatus</i>, were collected from various Ouachita River drainage watersheds in Arkansas, USA. They were examined for myxozoans by having their gill, gallbladder, fins, integument, mesenteries, musculature, and other major organs examined. The mesenteries of two (33%) <i>F. olivaceus</i> from Town Creek (Fulton County, Arkansas, USA) were infected with a new myxozoan, <i>Myxobolus storeri</i> sp. n. Molecular data consisted of a 1726 base pair sequence of the partial small subunit ribosomal RNA gene for <i>M. storeri</i> sp. n. Histologically, plasmodia were limited to mesenteric adipose and hepatic parenchyma, causing slight compression of neighboring tissue but producing no associated inflammatory response in the examined histosections. This is the first time a myxozoan has been described from <i>F. olivaceus</i> and is the seventh species recorded from any member of the fish family Fundulidae.
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spelling doaj-art-cf489aa434fd48a9a120b38f061d53d62025-08-20T03:43:11ZengMDPI AGDiversity1424-28182025-03-0117319210.3390/d17030192A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USAChris T. McAllister0Eric M. Leis1Donald G. Cloutman2Alvin C. Camus3Thomas J. Fayton4Logan R. S. Robison5George Burrows6Michael R. Rodriguez7Henry W. Robison8Division of Natural Sciences, Northeast Texas Community College, 2886 FM 1735, Chapel Hill Road, Mt. Pleasant, TX 75455, USALa Crosse Fish Health Center–Midwest Fisheries Center, U. S. Fish and Wildlife Service, Onalaska, WI 54650, USAP.O. Box 197, Burdett, KS 67523, USADepartment of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA 30677, USA16 Lake Avenue, Newbury, NH 03255, USAFork State Fish Hatchery, Indiana Department of Natural Resources, 5807 E. 825 S., Montgomery, IN 47558, USADepartment of Biology, Texas A&M University, College Station, TX 77843, USADepartment of Biological and Environmental Science, Texas A&M University-Commerce, Commerce, TX 75428, USA602 Big Creek Drive, Sherwood, AR 72120, USABetween March and August 2024, three species of <i>Fundulus</i> topminnows, including two northern studfish, <i>Fundulus catenatus</i>, six blackspotted topminnows, <i>Fundulus olivaceus</i>, and eleven blackstriped topminnows, <i>Fundulus notatus</i>, were collected from various Ouachita River drainage watersheds in Arkansas, USA. They were examined for myxozoans by having their gill, gallbladder, fins, integument, mesenteries, musculature, and other major organs examined. The mesenteries of two (33%) <i>F. olivaceus</i> from Town Creek (Fulton County, Arkansas, USA) were infected with a new myxozoan, <i>Myxobolus storeri</i> sp. n. Molecular data consisted of a 1726 base pair sequence of the partial small subunit ribosomal RNA gene for <i>M. storeri</i> sp. n. Histologically, plasmodia were limited to mesenteric adipose and hepatic parenchyma, causing slight compression of neighboring tissue but producing no associated inflammatory response in the examined histosections. This is the first time a myxozoan has been described from <i>F. olivaceus</i> and is the seventh species recorded from any member of the fish family Fundulidae.https://www.mdpi.com/1424-2818/17/3/192myxozoataxonomynew speciesfish<i>SSU</i> rRNAphylogeny
spellingShingle Chris T. McAllister
Eric M. Leis
Donald G. Cloutman
Alvin C. Camus
Thomas J. Fayton
Logan R. S. Robison
George Burrows
Michael R. Rodriguez
Henry W. Robison
A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA
Diversity
myxozoa
taxonomy
new species
fish
<i>SSU</i> rRNA
phylogeny
title A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA
title_full A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA
title_fullStr A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA
title_full_unstemmed A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA
title_short A New Species of <i>Myxobolus</i> (Cnidaria: Myxosporea: Myxobolidae) from the Mesenteries of Blackspotted Topminnow, <i>Fundulus olivaceus</i> (Cyprinodontiformes: Fundulidae), from the Upper Ouachita River Drainage, Arkansas, USA
title_sort new species of i myxobolus i cnidaria myxosporea myxobolidae from the mesenteries of blackspotted topminnow i fundulus olivaceus i cyprinodontiformes fundulidae from the upper ouachita river drainage arkansas usa
topic myxozoa
taxonomy
new species
fish
<i>SSU</i> rRNA
phylogeny
url https://www.mdpi.com/1424-2818/17/3/192
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