title: Camallanus cotti Fujita, 1927 (Nematoda, Camallanoidea) in ornamental aquarium fishes: pathology and morphology.
abstract: The pathology induced by the nematode Camallanus cotti in the aquarium fishes Beta splendens (beta fish) and Poecilia reticulata (guppy) consisted of gross and microscopic lesions, the former characterized by abdominal swelling with reddish parasites protruding from the anus in both fish hosts and the latter, similar in the beta fishes and guppies, by hemorrhage, congestion, edema, a few glandular elements, and extensive erosion areas in the rectum mucosa, with a marked thickening of the wall and absence of inflammatory infiltrate. Lesions were associated with the presence of several worms attached to the wall or free in the rectal lumen. This is the second reference of the parasite in Brazil and the first report of pathological findings related to this nematode species that is also briefly redescribed and illustrated for the first time on the basis of Brazilian samples.
authors.affiliation: Centro de Criação de Animais de Laboratório, Instituto Oswaldo Cruz-Fiocruz, Av. Brazil 4365, 21040-900 Rio de Janeiro, RJ, Brasil.
authors.forename: Rodrigo Caldas
authors.initials: RC
authors.lastname: Menezes
authors.forename: Rogério
authors.initials: R
authors.lastname: Tortelly
authors.forename: Roberto
authors.initials: R
authors.lastname: Tortelly-Neto
authors.forename: Dely
authors.initials: D
authors.lastname: Noronha
authors.forename: Roberto Magalhães
authors.initials: RM
authors.lastname: Pinto
mesh_terms: D000818:Animals; D017175:Camallanina / Q000302:isolation & purification*; D005260:Female; D005393:Fish Diseases / Q000469:parasitology* / Q000473:pathology; D005399:Fishes / Q000469:parasitology*; D008297:Male; D017205:Spirurida Infections / Q000469:parasitology / Q000473:pathology / Q000662:veterinary*