title: Aspidodera kinsellai n. sp. (Nematoda: Heterakoidea) from nine-banded armadillos in Middle America with notes on phylogeny and host-parasite biogeography.
abstract: Aspidodera kinsellai n. sp. (Heterakoidea: Aspidoderidae) from the 9-banded armadillo, Dasypus novemcinctus , is herein described. This nematode occurs from Costa Rica north through central Mexico where it can be found causing co-infections with Aspidodera sogandaresi . Aspidodera kinsellai n. sp. can be discriminated from this and all other species in the family based on 3 key features, including (1) conspicuous lateral grooves with no lateral alae starting immediately after the hood and terminating at the cloacal/anal region; (2) long hoods in both male (360 μm) and female (401 μm), and (3) a relatively long (152 μm) terminal spine or terminus that gradually tapers to a point from the last pair of papillae. This is the 18th recognized species of the family and the 3rd in the genus present outside of South America. A phylogenetic analysis of the species in the genus with the use of the mitochondrial partial genes cytochrome C oxidase subunit 1 (cox1), the ribosomal large subunit (rrnL), and the internal transcriber spacer (ITS) shows that 2 species of Aspidodera may have entered into North America from the south via 2 independent events.
authors.affiliation: Department of Zoology, Southern Illinois University, Carbondale, Illinois 62901.
authors.forename: F Agustín
authors.initials: FA
authors.lastname: Jiménez
authors.forename: Ramón A
authors.initials: RA
authors.lastname: Carreno
authors.forename: Scott L
authors.initials: SL
authors.lastname: Gardner
mesh_terms: D000818:Animals; D001135:Armadillos / Q000469:parasitology*; D017162:Ascaridida / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics / Q000648:ultrastructure; D017191:Ascaridida Infections / Q000469:parasitology / Q000662:veterinary*; D003364:Costa Rica; D005260:Female; D006790:Host-Parasite Interactions; D008297:Male; D008800:Mexico; D008855:Microscopy, Electron, Scanning / Q000662:veterinary; D008969:Molecular Sequence Data; D010802:Phylogeny; D058974:Phylogeography