How to translate text using browser tools
1 August 2023 New Genus and Species of Cyclocoelidae Stossich, 1902 (Platyhelminthes: Digenea) Infecting the Nasopharyngeal Cavity of Canada Goose, Branta canadensis (Anseriformes: Anatidae) from Western Alabama
Haley R. Dutton, Stephen A. Bullard, Anita M. Kelly
Author Affiliations +
Abstract

While surveying the parasites of birds associated with western Alabama aquaculture ponds, we collected several specimens of Anativermis normdroneni n. gen., n. sp. (Digenea: Cyclocoelidae) from the nasopharyngeal cavity of a Canada goose, Branta canadensis (Linnaeus, 1758) (Anseriformes: Anatidae). These flukes were heat killed and fixed in neutral buffered formalin for morphology or preserved in 95% ethanol for DNA extraction. Anativermis resembles Morishitium (Witenberg, 1928) by having testes that are spheroid with smooth margins and located in the posterior quarter of the body, an anterior testis that is lateral to the midline and abuts the respective cecum, a posterior testis that is medial (testes diagonal) and abuts the cyclocoel, a genital pore that is immediately postpharyngeal, and a vitellarium that is discontinuous posteriorly. The new genus differs from Morishitium and is unique among all other cyclocoelid genera by having the combination of a body that is broadest in the anterior body half, a posterior body end that is more sharply tapered than the anterior body end, an ovary that nearly abuts the posterior testis, a vitellarium that is asymmetrical and distributes from the area immediately posterior to the cecal bifurcation posteriad to approximately the level of the ovary, and uterine loops extending dorsolateral to the ceca and filling the space between the ceca and the respective body margin for nearly the entire body length. The new genus was recovered as a distinct lineage in separate 28S, 18S, and ITS2 phylogenetic analyses. This is the first report of a cyclocoelid infecting the Canada goose and of a cyclocoelid from Alabama.

Haley R. Dutton, Stephen A. Bullard, and Anita M. Kelly "New Genus and Species of Cyclocoelidae Stossich, 1902 (Platyhelminthes: Digenea) Infecting the Nasopharyngeal Cavity of Canada Goose, Branta canadensis (Anseriformes: Anatidae) from Western Alabama," Journal of Parasitology 109(4), 349-356, (1 August 2023). https://doi.org/10.1645/23-10
Published: 1 August 2023
KEYWORDS
Alabama
Anativermis normdroneni
Branta canadensis
canada goose
Cyclocoelidae
Morishitium
Plagiorchiidae
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top