Abstract：
:Ligictaluridus michaelalicea n. sp. (Monogenea: Dactylogyridae, Ancyrocephalinae) is described from the gills of Pylodictis olivaris (Siluriformes: Ictaluridae) from Wisconsin and Iowa portions of the upper Mississippi River. Diagnostic features include a relatively large, strongly curved tubular cirrus with minor terminal flare; an accessory piece with a prominent basal lobe and a simple, thick terminal limb featuring a thin lateral flange and blunt distal tip devoid of recurved hooks. The sinistral vagina, two prostatic reservoirs, and a terminal seminal vesicle of the vas deferens are prominent. The anchors, ventral and dorsal bars, and hooks are similar in overall form to those of other members of the genus. The description includes sequence data for the 18S rRNA gene, which aligned most closely with species of ancyrocephaline monogeneans, with the highest similarity being with Ligictaluridus pricei (Mueller, 1936). Other monogenean species identified from the flathead catfish examined included L. pricei and Ligictaluridus mirabilis (Mueller, 1937). L. michaelalicea n. sp. is the fourth species to be described from P. olivaris within its natural range in central and eastern North America. Implications resulting from taxonomic name changes, including species of Ligictaluridus, and United States Food and Drug Administration treatment regulations are discussed. An updated key to species of the genus Ligictaluridus is presented.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Leis E,Easy R,MacLean L,Cone Ddoi
10.1007/s00436-018-5757-2subject
Has Abstractpub_date
2018-03-01 00:00:00pages
825-830issue
3eissn
0932-0113issn
1432-1955pii
10.1007/s00436-018-5757-2journal_volume
117pub_type
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