title: New and previously described species of Dactylogyridae (Monogenoidea) from the gills of Panamanian freshwater fishes (Teleostei).
abstract: During an investigation of the diversity of metazoan parasites of 7 freshwater fish species from 3 localities in central Panama, the following gill dactylogyrid (Monogenoidea) species were found: Aphanoblastella chagresii n. sp. from Pimelodella chagresi (Heptapteridae); Aphanoblastella travassosi (Price, 1938) Kritsky, Mendoza-Franco, and Scholz, 2000 from Rhamdia quelen (Heptapteridae); Diaphorocleidus petrosusi n. sp. from Brycon petrosus (Characidae); Gussevia asota Kritsky, Thatcher, and Boeger, 1989, from Astronotus ocellatus (Cichlidae); Sciadicleithrum panamensis n. sp. from Aequidens coeruleopunctatus (Cichlidae); Urocleidoides flegomai n. sp. from Piabucina panamensis (Lebiasinidae); and Urocleidoides similuncus n. sp. from Poecilia gillii (Poeciliidae). Consideration of the comparative morphology and distribution of these parasites along with the evolutionary history of the host fishes suggests that diversification may be associated with geotectonic events that provided isolation of the Central American fauna with the uplift of the Panamanian Isthmus during early Pliocene (3 mya).
authors.affiliation: Laboratory of Parasitology, Centro de Investigación y de Estudios Avanzados (CINVESTAV, Unidad Merida), Carretera Antigua a Progreso Km 6, Apartado Postal 73 Cordemex, C.P. 97310 Mérida, Yucatán, Mexico. mfranco@mda.cinvestav.mx
authors.forename: Edgar F
authors.initials: EF
authors.lastname: Mendoza-Franco
authors.forename: M Leopoldina
authors.initials: ML
authors.lastname: Aguirre-Macedo
authors.forename: Victor M
authors.initials: VM
authors.lastname: Vidal-Martínez
mesh_terms: D000818:Animals; D002397:Catfishes / Q000469:parasitology; D005393:Fish Diseases / Q000469:parasitology*; D005399:Fishes; D005618:Fresh Water; D005880:Gills / Q000469:parasitology*; D010176:Panama; D010986:Platyhelminths / Q000033:anatomy & histology / Q000145:classification* / Q000302:isolation & purification; D011036:Poecilia / Q000469:parasitology; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*