title: Intrahepatic larval nematode infection in the northern spring peeper, Pseudacris crucifer crucifer (Anura: Hylidae), in West Virginia.
abstract: Larval stages of an unknown nematode were observed encapsulated in the livers of spring peepers, Pseudacris crucifer crucifer (Weid-Neuweid), collected from a marsh in western West Virginia (USA) during the spring breeding seasons of 1993 and 1994. Prevalence and mean intensity of infection were 37% (30 of 82 animals) and 2.03 parasites per infected host, respectively. Capsules with white or darkly pigmented walls were observed in infected livers; the former containing viable larvae, and the latter enveloping larvae in various stages of degeneration.
authors.affiliation: Department of Biological Sciences, Marshall University, Huntington, West Virginia 25755, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Joy
authors.forename: E M
authors.initials: EM
authors.lastname: Walker
authors.forename: S G
authors.initials: SG
authors.lastname: Koh
authors.forename: J M
authors.initials: JM
authors.lastname: Bentley
authors.forename: A G
authors.initials: AG
authors.lastname: Crank
mesh_terms: D000818:Animals; D001001:Anura / Q000469:parasitology*; D007814:Larva; D008099:Liver / Q000469:parasitology*; D008109:Liver Diseases, Parasitic / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D009348:Nematoda / Q000302:isolation & purification*; D009349:Nematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D015995:Prevalence; D014903:West Virginia / Q000453:epidemiology